416 or 440 for mx racing

[double ought]

i race mx in alabama and my stock 400 just wont keep up on the straights with these new 450's...i have heard some good things about the 416 kit....i have heard some good things about the 440 kit also....i am just wanting some other opinions on what i should go with....from what i have studied when you go to the 440 kit you get a lot of endependability, unlike with the 416...any input will be appreciated

[hondarider2006]

I have the 416 with the hot cam stg II and its faster than the 450's I race. Even after the races I let the guy ride it, and he said it felt like it had more power than his 450(thats stock) Also I believe the 416 will rev faster than the 440, and its more dependable.

[Florida400EX]

Originally posted by hondarider2006
I have the 416 with the hot cam stg II and its faster than the 450's I race. Even after the races I let the guy ride it, and he said it felt like it had more power than his 450(thats stock) Also I believe the 416 will rev faster than the 440, and its more dependable.

a fully built 416, couldn't even kiss a 450's *****

[roostin_dale]

Originally posted by Florida400EX
a fully built 416, couldn't even kiss a 450's *****

^^ just what I was thinking

Go for a 426... right in the middle of both of em'. You Will have a built/powerfull motor, and if it blow you still have room to go bigger..

[quadmx7]

i can only speak for a 426 and 440. both are fully built and both of us are getting better starts than most of the 450s. the 450's that have gone into the engine and put different cams and pistons we have trouble with but other than that we can hang with them if not beat them. my cosuins CT racing filly buit 440 is about the same as my baldwin 426 power wise, mine just revs quicker which give me the advantage. some people complain about head gasktes blowing but my cosuin has never had any trouble. there was also another 440 their, i dont know what all was done to it but my 426 was pulling it on the straights.

[440ex2001]

I wonder what the point of building a 440 engine is? Everytime I see it compared to something on here it is called unreliable an slow. I'm not talking about this thread in particular but all I see is negative neagative negative. Does the 44o have its place or should we petition JE and wiseco and tell them to only make 416 and 426 becasue 440 are slow and blow up. I currently have a nice 03 400 I got from nastynochback and I was planning on putting a 440 kit in it that i already have installed purchased and intalled in the sleeve but if they are just as bad as everyon says I am going to used it as a paper weight.

[K_Fulk]

My 416 was a little bit faster than my 440, but my 416 had a 13:1 piston and my 440 was only at 11:1.

I'm having a headgasket problem with the 416 now, but never did with the 440.

[Florida400EX]

by the time your done pissing away money on a 400ex trying to get to the power of a 450, you could have bought the 450 and saved the headache of the overheating, holeshots, and corners. The chance of getting a 400ex to get near the power of a 450 is small, and if you get that small chance, they will start to loose power halfway through the moto, because they are air cooled. If all out power is what you are looking for, and if your at the same skill levals of the 450 riders, you arent going to win. Only way people win on 400ex's, is from rider skill.

[roostin_dale]

Originally posted by Florida400EX
by the time your done pissing away money on a 400ex trying to get to the power of a 450, you could have bought the 450 and saved the headache of the overheating, holeshots, and corners. The chance of getting a 400ex to get near the power of a 450 is small, and if you get that small chance, they will start to loose power halfway through the moto, because they are air cooled. If all out power is what you are looking for, and if your at the same skill levals of the 450 riders, you arent going to win. Only way people win on 400ex's, is from rider skill.

Very well put!:)

[Quadzilla]

Well I've dragged raced my 416 multiple times against a stock YFZ (I mean 100% stock including exhaust, jetting, skids and tires, etc). They were about dead even and he is about 20 lbs lighter than me. Not to mention that I have full skids (a-arms skids too), big heavy tires (6-ply 22's rear, 23's up front), etc. So my quad is significantly heavier than his and prob geared a bit taller (due to the tires) and we were even. I'm pretty happy. Now as soon as he jets and pipes that thing, it's all over for me!!!

[double ought]

i have to disagree with you on that......the 450 only has 39 horsepower....my stock with a pipe 400 is running 36....so if i understand what you are saying i cant get in between 5 and 10 horsepower with the 416 kit, with cam and carb.....and now that i have just got my a-arms and shocks why would i want to go get a 450 and start all over with the 450.....

[440ex2001]

haha Spend over 6g's on a new 450 to try and compensate for the fact that i cant drive? No thanks. Give me good handling and alot of time to practice over making payments on a 450.

[double ought]

i agree with you on that 440ex2001...thats a good point

[Quadzilla]

Originally posted by double ought
i have to disagree with you on that......the 450 only has 39 horsepower....my stock with a pipe 400 is running 36....so if i understand what you are saying i cant get in between 5 and 10 horsepower with the 416 kit, with cam and carb.....and now that i have just got my a-arms and shocks why would i want to go get a 450 and start all over with the 450.....

Dude, no stock 400EX with a pipe is making 36 hp. Stock is around 26-29 and most pipes only add 2-4 hp on a EX. Not trying to beat you up but my crap meter is going off...

[double ought]

the dyno doesnt lie....thats what the printout had on it....there was another quad a yfx 450 whoch had 48 horsepower with just a pipe and airbox lid off with a rejet

[Quadzilla]

Sounds like that dyno is off a bit. Needs a calibration. Even the YFZ is a bit high. Most piped/jetted YFZ's are making mid-40's not high. The ones that also have the cam mod are making high-40's. Again, not trying to bust your balls or bubble, but piped-stock 400EX's don't put out 36 hp.

[Steve-o 400EX]

I have a 416 With a hotcams stage 2. I love it and it will hang with mostly everything. I run harescrambles in PA occasionally and it does pretty good. Its an all top end motor though so it runs kinda like a 2 stroke but i like it.;)

[double ought]

you could be right about the dyno i dont know but it is a strong running quad but i am new to all this stuff and i am not at a point to arguw about it.....but all i know is i cant keep up with the 450s on the straights but i do make up alot of my time in the turns since i put thr +2 a-arms and shocks and i hat to get buy another quad and start all over do you have any suggestions quadzilla

[440ex2001]

What would a 440, ported and polished head,11.1:1 piston,proper jetting and R-4 white bros pipe with open air box and K&N air filter make as far as hp?

[440ex2001]

Double ought I know what you mean. You can take a 400 and put +2's all the way around and a set of elkas or TCS's and be better than a stock 450r except for the power department which helps alittle on a loose traction track but can be compensated for with expierence. But when you run across a 450r or yfz450 with +2's and Elkas or TCS it will be very difficult if not impossible to run with them unless you are a far superior rider. Its possible just look at Doug Gust's Z of course it is liquid cooled thats the only thing that cant be compensated by the driver or by bolting on parts. But hey as long as the races are fun and competitve who cares. If you go pro buy a 450r and invest 10,000 grand in it.If not just sling dirt and have fun with what you have.

[Florida400EX]

I understand what you're saying its more important to invest in handleing... just check out my quad. Only thing that comes in to trouble, is if you have a corner, right before a big double, and need to pin it the whole way to clear it.... Most of the time the 450's have no trouble, but if you're on an EX, and you loose traction for a fraction of a second, you case it, and loose valuable time in a race sitaution.

[440ex2001]

So what did the guys that raced before the 450's came out do in that same situation?

[440ex2001]

Also wouldnt a 400 have less of a problem with loosing traction since they dont have the power of the 450's?

[Florida400EX]

Originally posted by 440ex2001
So what did the guys that raced before the 450's came out do in that same situation?

Didn't hit doubles in that situation.... as the power gets the higher, the jumps get bigger along with them. Also, the old fully built 250r's at least have a chance of keeping up with a 450, if you'r a full out awsome 2 stroke type rider.

[Florida400EX]

Originally posted by 440ex2001
Also wouldnt a 400 have less of a problem with loosing traction since they dont have the power of the 450's?

I was saying that if there happened to be a soft patch of dirt, and give you wheel spin, you wouldn't have the time/ space to make up for the lost ground, as a 450 could.

[440ex2001]

oh i understand now good point

[SirBANE]

You need to read the users guide on how to use a dyno. Stock 400ex with a pipe should not have a 30% gain.

[ill_lil_romey]

For number one, most guys that you race don't have fully-built 440s. Alot of guys just get a 440 bore and a cam and call it a day. Thats no good powerwise. When my ex was piped airboxmods and jetted properly, I ran with bore-only 440s in drags!
Now, a fully build 440 426 etc is another story. There is plenty power inside the 400ex motor, you just have to go find it! Mx is a very small percentage bike, largely rider, but having a fast great handling quad sure helps. Have you ever noticed that the top guys have no prob switching brands? There fast on whatever they ride. If your a good rider a nicely built 440 426 etc will keep up with the 450s on the track, but straits and drags may be a diff story.:eek2:

[Florida400EX]

Originally posted by ill_lil_romey
For number one, most guys that you race don't have fully-built 440s. Alot of guys just get a 440 bore and a cam and call it a day. Thats no good powerwise. When my ex was piped airboxmods and jetted properly, I ran with bore-only 440s in drags!
Now, a fully build 440 426 etc is another story. There is plenty power inside the 400ex motor, you just have to go find it! Mx is a very small percentage bike, largely rider, but having a fast great handling quad sure helps. Have you ever noticed that the top guys have no prob switching brands? There fast on whatever they ride. If your a good rider a nicely built 440 426 etc will keep up with the 450s on the track, but straits and drags may be a diff story.:eek2:

you forgot to mention, cornering speed, corner exiting, ability to clear tight jumps, holeshots...... it all goes on, you have half the power, you're gonna have a he!l of a time trying to keep up.

[lilpoppy]

I dont know what 416s you guys are riding but I beat stock 450r's and YFZ's in drag races all the time by at least a length. Saying that a built 416 can't do it is total bull. I wouldn't even consider myne that built only having a hotcam stage 2 in it and I have no problem with the new quads at all. I'm not selling my 400 for one of these new quads. Of coarse I would love a new YFZ but my 400 is already paid off with a built engine so I'm putting some money into my suspension and I gurantee it will hang with any of those stock quads if not be better.

As far as MX goes though I have to agree that it is more rider than quad though.

[Florida400EX]

Originally posted by lilpoppy
I dont know what 416s you guys are riding but I beat stock 450r's and YFZ's in drag races all the time by at least a length. Saying that a built 416 can't do it is total bull. I wouldn't even consider myne that built only having a hotcam stage 2 in it and I have no problem with the new quads at all. I'm not selling my 400 for one of these new quads. Of coarse I would love a new YFZ but my 400 is already paid off with a built engine so I'm putting some money into my suspension and I gurantee it will hang with any of those stock quads if not be better.

As far as MX goes though I have to agree that it is more rider than quad though.

I'd love to see a 416 with hotcam and pipe pull a piped yfz on any day. Even if the guy on the yfz totally sucked, and the guy on the EX is doug gust, the yfz would still kill it.

[lilpoppy]

Originally posted by Florida400EX
I'd love to see a 416 with hotcam and pipe pull a piped yfz on any day. Even if the guy on the yfz totally sucked, and the guy on the EX is doug gust, the yfz would still kill it.


Look a little harder dude. I also have porting and a FCR carb. I drag race in Pismo beach all the time. I have raced 5 YFZ'a at a time and not one came within a length of beating me. Believe it or not it is the truth. My friend has videos but they are too small to really make out who is who. Next time I will make sure to get you some proof.

[Florida400EX]

oh, sorry, didnt notive the porting or FCR... So yeah, you might be around the same hp of a stock yfz.... now try again against a piped yfz..

[quadmx7]

i know i'll put my 426 up agsinst what ever u wanna thorw at me at the track. i'll snatched the holeshot from yfz with pipe filter and jet, or 450rs for that matter too. there is this one 450r that has the crf450 cam, 13:1 piston, pep susp all the way around, +2 on the front, wider axle, and a pipe that gets the holeshot from me now but i'll still challenge him in the race.once i have a nicely set up quad why waste all that money to start over with something that i now have just as much power as.

[double ought]

everyone seems to be missing my point....i eat up the 450s in the corners but on striaghts is where they get me....it has nothing to do with rider ability for example,this past weekend i was 5 made a pass on a blaster and raptor at the same time over a step up....then a yfz and a kawisaki 400 i held the lead for a little while until we got on the long straight and the yfz got me but in the turns i ate him up....but when we would get back to a straight he would pull me.....thats what i am getting at.....anyone have any suggestions on what i should do???????????

[quadmx7]

if u wanna hold him on the stragths get a fully built 426 or 440. for examply, CT racing 440 hi-out put kit is very reliable and is very fast. tc, sparks, and baldwin also build awsome motors that will hold 450's

[Florida400EX]

Originally posted by quadmx7
if u wanna hold him on the stragths get a fully built 426 or 440. for examply, CT racing 440 hi-out put kit is very reliable and is very fast. tc, sparks, and baldwin also build awsome motors that will hold 450's

yeah, you're talking into like $2000!!!! You would be best off, buying a 416, or a 426 piston, a good camshaft, and try that out. If you still need more power, you can go into porting, and a carb, possibly a stroker. The only reason why I don't think it's the best idea to make an EX with that much power is one reason, it's air cooled, and air cooled motors loose power once they heat up, because they have no way to stay cool.

[quadmx7]

i raced 4 motos the last weekend and it aint cool here in mississippi and my motor did great.

[Steve-o 400EX]

Originally posted by quadmx7
i know i'll put my 426 up agsinst what ever u wanna thorw at me at the track. i'll snatched the holeshot from yfz with pipe filter and jet, or 450rs for that matter too. there is this one 450r that has the crf450 cam, 13:1 piston, pep susp all the way around, +2 on the front, wider axle, and a pipe that gets the holeshot from me now but i'll still challenge him in the race.once i have a nicely set up quad why waste all that money to start over with something that i now have just as much power as.

Yea i have done the same. As soon is mine hits top end i'm outta there.:macho

[lilpoppy]

I'm not missing the point at all. I'm telling you do what I did to my motor and I gurantee you will pull on them. You can just do the cam and piston though. Its the combintaion of the piston/cam with the porting and the exhaust that all work together to get the power. Most importantly make sure whoever does your porting knows what they are doing.

[SIXTEEN QUAD]

Originally posted by Quadzilla
Sounds like that dyno is off a bit. Needs a calibration. Even the YFZ is a bit high. Most piped/jetted YFZ's are making mid-40's not high. The ones that also have the cam mod are making high-40's. Again, not trying to bust your balls or bubble, but piped-stock 400EX's don't put out 36 hp.
waht would you expect a 450 r to pull on a dyno with hot cams setup and a high comp piston with a k&n filter pipe and jetting

[markk]

Originally posted by hondarider2006
I have the 416 with the hot cam stg II and its faster than the 450's I race. Even after the races I let the guy ride it, and he said it felt like it had more power than his 450(thats stock) Also I believe the 416 will rev faster than the 440, and its more dependable.


Im with you 100% My buddie runs my setup with a stage two cam and some 20" tires, And his power hits alot harder than my other buddies stock 450!

[Steve-o 400EX]

I will say that my 416 is quicker than a stock 450, but if the 450 is piped and jetted, i dont stand a chance, i rode with 2 this weekend.:chinese:

[440ex2001]

So a built 416 and 426 can be quicker than a stock 450 but a 440 cant because it doesnt reve as fast? I think that 416 426 reving faster thing is just speculation have you ever taken a 426 and a 440 piston and looked at them side bt side? Not much difference Its not like a 44o has this huge piston that has to be lugged up and down and the 426/416 has a small little piston that just revs lightning fast casue its so small. I am sure they might rev a little faster but cant be that big of a difference. I'll take another 14cc or another 24cc of combustion chamber anyday. For each power stroke there is more power being made with the 440 becasue it has more air/fuel mixture in the combustion chamber. For every power stoke more power is being put to the ground. Pushing your quad forward faster and further with each rev. If we were comparing a big block push rod engine I'd understand why a smaller displacement over head cam engine revs faster but not two engines identically contructed and a 2mm piston diameter difference.

[khen]

Originally posted by 440ex2001
So a built 416 and 426 can be quicker than a stock 450 but a 440 cant because it doesnt reve as fast? I think that 416 426 reving faster thing is just speculation have you ever taken a 426 and a 440 piston and looked at them side bt side? Not much difference Its not like a 44o has this huge piston that has to be lugged up and down and the 426/416 has a small little piston that just revs lightning fast casue its so small. I am sure they might rev a little faster but cant be that big of a difference. I'll take another 14cc or another 24cc of combustion chamber anyday. For each power stroke there is more power being made with the 440 becasue it has more air/fuel mixture in the combustion chamber. For every power stoke more power is being put to the ground. Pushing your quad forward faster and further with each rev. If we were comparing a big block push rod engine I'd understand why a smaller displacement over head cam engine revs faster but not two engines identically contructed and a 2mm piston diameter difference. From what I have read a lot of the problems with the 440 not reving as fast as the 416/26 is because the 440 high compression pistons come in at a lower compression than advertised. Anyone else heard this??

[lilpoppy]

Generally the big difference between a 440 and a 416 are that the 416 will be faster drag racing on flat ground and in most cases beat the 440 but uphil the 440 will beat the 416 pretty badly.

I have raced a lot of 440's on flat ground and won but uphill it is a different story.

[cals400ex]

why would that be?? i realize it takes torque to pull up a hill, but it takes torque to get the bike going too.

[jcs327]

all this whining about which is better sounds like a bunch of kids fighting over a candy bar. the original topic was which is better. in my not so humble opinion, it is the skill of the rider on any mx track, and how the machine handles. i race a mostly bone stock 400ex with just a pipe. stock bore, stock piston, stock cam, and I am right there with the 440's and 416's. I will have to admit, the yammerhammer 450 packs a wallop, but last night I saw a 416 take second behind a yam 450, but had 3 honda 450's & 2 yama's behind it. It does not matter if you ride a 400,416,440, 450, or a 1975 185s three wheeler with a volkswagon engine on it. Anyone that as ever raced motocross can tell you that it is RIDER SKILL 90%, MACHINE 10%

[lilpoppy]

Originally posted by jcs327
all this whining about which is better sounds like a bunch of kids fighting over a candy bar. the original topic was which is better. in my not so humble opinion, it is the skill of the rider on any mx track, and how the machine handles. i race a mostly bone stock 400ex with just a pipe. stock bore, stock piston, stock cam, and I am right there with the 440's and 416's. I will have to admit, the yammerhammer 450 packs a wallop, but last night I saw a 416 take second behind a yam 450, but had 3 honda 450's & 2 yama's behind it. It does not matter if you ride a 400,416,440, 450, or a 1975 185s three wheeler with a volkswagon engine on it. Anyone that as ever raced motocross can tell you that it is RIDER SKILL 90%, MACHINE 10%


Actually the original topic was if a 416 or 440 could pull on a YFZ on the straightaway. That is what we are talking about. Yes the both can if built properly.


As far as why the 440 pulls uphill, it goes right back to the revs. The revs get you that faster pull around 3rd gear that the 440 won't quite have but uphill it is purely about torque that the 440 deffinatley has a lot more of.

[markk]

Originally posted by jcs327
all this whining about which is better sounds like a bunch of kids fighting over a candy bar. the original topic was which is better. in my not so humble opinion, it is the skill of the rider on any mx track, and how the machine handles. i race a mostly bone stock 400ex with just a pipe. stock bore, stock piston, stock cam, and I am right there with the 440's and 416's. I will have to admit, the yammerhammer 450 packs a wallop, but last night I saw a 416 take second behind a yam 450, but had 3 honda 450's & 2 yama's behind it. It does not matter if you ride a 400,416,440, 450, or a 1975 185s three wheeler with a volkswagon engine on it. Anyone that as ever raced motocross can tell you that it is RIDER SKILL 90%, MACHINE 10%



I pretty much agree with u, but id say more like 80%rider, and about 20%quad. (i say this becuase)

A freind of mine that runs A-class District 17MX Last year he ran a 400ex with JE 416 kit, with stage two hotcams, and white bros slipon. Everything else stock And he would go out and battle with guys running fully custom 450s, And now that he is running a stock YFZ this year (HMF exhaust) He has walked away with the points lead this year.


Anyways, the 416, or a 426 i would say is your best bet, But the 440 isnt bad for woods racing either!!!

[PEPwalshZ440]

bore it to a 416 and stroke it to a 440:D

[Steve-o 400EX]

Originally posted by PEPwalshZ440
bore it to a 416 and stroke it to a 440:D

Now were Talkin!:macho :devil:

[double ought]

thanks everyone for the input i have decided to go with the 416 with a stage 2 hot cam curtis sparks pipe exhaust syestem hope that will do it

[Steve-o 400EX]

Good choice!:macho

[jwisniew]

hey when i bought my 400 i got a 440 kit with the deal. After reading all of this im thinking i should maybe sell it and buy somthin else for the quad, what do you guys think?

[440ex2001]

i think its just a case of more guys have 416 and 426 than 440's so of course your gonna hear that its better. If it were me I would just keep the 440 kit and get it put together at a good shop. I have had the kit for about 3 months but have not had it installed yet but i have several friends that have 440 kits in them and have only good things to say about it. They do run hotter. I have riden yfz450's 400's with 12.5:1 piston and hotcam and a 440 that i dont know what all was done to it before and the 440 pulls just like the 450 I dont know about top end but they both stretch your arms out pretty good. Huge difference from stock.

[hondarider2006]

Originally posted by double ought
thanks everyone for the input i have decided to go with the 416 with a stage 2 hot cam curtis sparks pipe exhaust syestem hope that will do it


Good Choice:D

[Rage Racer 07]

I have had a 416, 426, bored 440 and a 416 stroked to a 440. I have had every thing possible done to the motors. 3 angle valve job, oversized exhuast valves, ported several different ways, Lectron carb, eldabrock card , fcr 39mm carb and stock carb. White Bro's cam, Web Cam, special ground cams, hot cams. 8 plate clutch setups,curtis sparks exhaust, lrd exhaust, ct exhaust and yoshimura exhaust. I have lightend my fly wheel amnd my crank had them both re ballenced. I have since then sold my $22,000 Honda 400ex for a Yamaha YFZ450 and with only a slip on exhaust, jet kit and pro flo air filter system and there is no comparison!!!!!!!! The honda will run with a Yamaha on the drag strip but in the dirt on a MX track not a chance. The Yamaha has power on tap to do most anything asked of it with out hesitation, where the Honda has to build up speed at a more gradual pace. This is just my two cents. If you are a comparable rider the rider on the YFZ or tRX 450r will win more consistently.

[cals400ex]

Originally posted by Rage Racer 07
I have had a 416, 426, bored 440 and a 416 stroked to a 440. I have had every thing possible done to the motors. 3 angle valve job, oversized exhuast valves, ported several different ways, Lectron carb, eldabrock card , fcr 39mm carb and stock carb. White Bro's cam, Web Cam, special ground cams, hot cams. 8 plate clutch setups,curtis sparks exhaust, lrd exhaust, ct exhaust and yoshimura exhaust. I have lightend my fly wheel amnd my crank had them both re ballenced. I have since then sold my $22,000 Honda 400ex for a Yamaha YFZ450 and with only a slip on exhaust, jet kit and pro flo air filter system and there is no comparison!!!!!!!! The honda will run with a Yamaha on the drag strip but in the dirt on a MX track not a chance. The Yamaha has power on tap to do most anything asked of it with out hesitation, where the Honda has to build up speed at a more gradual pace. This is just my two cents. If you are a comparable rider the rider on the YFZ or tRX 450r will win more consistently.


what setup did you like best on your 400ex?

[Florida400EX]

Originally posted by cals400ex
what setup did you like best on your 400ex?

I think the fastest legal 400ex engines are 426's bored to a 450. Even those don't compare to piped YFZ's like the one guy said about power on tap.

[Rage Racer 07]

The fastest and strongest my 400ex ever was with a 416 stroked to a 440. It still reved pretty fast and developed torque. the fcr carb worked the best with that setup. My quad was raced MX for almost two years with minimal problems. Clutches seemed to be the biggest issue. If you get your gearing setup properly you will be very competitive.

Rage Racer 07

[Steve-o 400EX]

Originally posted by Rage Racer 07
The fastest and strongest my 400ex ever was with a 416 stroked to a 440. It still reved pretty fast and developed torque. the fcr carb worked the best with that setup. My quad was raced MX for almost two years with minimal problems. Clutches seemed to be the biggest issue. If you get your gearing setup properly you will be very competitive.

Rage Racer 07

I agree, i do believe that a 416 stroked to a 440 is the best way to get all the power you can out of a 400ex.

[440ex2001]

if you stroke it to a 440 wouldnt that slow down the rev rate because of the extra length of the rod? :rolleyes:

[03400EX_Nacs]

Ok, honestly you will never be able to flat out beat a 450r there is no denying it not matter what your 416 wouldnt be able to touch it. but if you racing its not all about your quad. not to sound as if i am bragging but i have beat many quads a LOT better than mine. the point i am trying to make is if you have more skill than the guy on the 450r on the track you will beat him no prob what the 416 will help you get there and will help majorly. if you get the another major thing to get would be a lectron carb the two are a great cobo
Bob

[lilpoppy]

Originally posted by 03400EX_Nacs
Ok, honestly you will never be able to flat out beat a 450r there is no denying it not matter what your 416 wouldnt be able to touch it. but if you racing its not all about your quad. not to sound as if i am bragging but i have beat many quads a LOT better than mine. the point i am trying to make is if you have more skill than the guy on the 450r on the track you will beat him no prob what the 416 will help you get there and will help majorly. if you get the another major thing to get would be a lectron carb the two are a great cobo
Bob


Ok like I have already said a million times already my 416 does flat out beat the 450r period, but yes it does come down to rider more than anything.

[Chanman420q]

My buddy has a 450R with the HRC end cap, and i got your basic 416, 11:1 weisco, HC2, valve job, open air box, Slip on exhaust. He walks away from me in a drag race. Granted when mine was stock he murdered me, when i got the motor work i can keep up with him til he hits 3rd gear, then hes gone. He even geared his down to 13t front with 18inch tires an the thing still runs away from me, i got stock gearing and 18inch tires.

This winter i do plan on getting a YFZ. Everyday im putting more money into my 416 and its losing value every day.

YFZ here i come:D

[cals400ex]

my buddies 416 beat a stock yfz. his bike has: je 10.8:1 416, sparks x-4 pipe, fcr 39, K&N, air box lid on, and a sparks rev box. when racing a stock yfz he starts pulling in 3rd and pulls a little harder in 4th. we never got to exact top speed, but in the middle of 5th the yfz still isn't catching. when riders were swapped, the results were the same. i don't know if the yfz is just a slow one or my buddies 416 is fast.

[mar400ex]

In my experience a 440 is like a raptor, it's powerful but it's power all the way through, a 416 will give you a better hole shot and better throttle response. if you're looking to just do some casual dragging then a 416 is where it's at, but if you want more power go for the 440, or if you're really in the market to spend some money, call up mikey dunlap and get a 500 kit...those are real power right there, and it's not that hard on your bike...but it's a lot of work and money.