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View Full Version : How Far can a 400 go?



Wheelie
08-21-2001, 10:18 PM
Can a 400ex be built to beat or keep up with a lightly modded Banshee??(pipes, filters, reeds) or hopefully beat one....

I'm looking into building my ex this winter, and if I do it I will go all out--(lighten the flywheel, 11:1, big bore, 38mm Carb, Cam, Porting, etc). Would it be worth it?? would I be happy with the power? I would like to get about 40-44hp. Or should I wait for the new CRF450R (55h.p)motor
:devil :macho :D

08-21-2001, 10:36 PM
go with this until the 450 comes out

Chef
08-21-2001, 10:51 PM
yea it can be done, mine is a banshee beater with the mods listed below and a few more things that i havent listed like lightened flywheel, and some special polishing that i dont even know if helps anything, its called swirl polishing, anyone know what that does if anything? but to answer your question it can be done. but for what i did it costed $4500

JabberJaw
08-22-2001, 08:15 AM
If it "costed" that much, it sounds like you were, "Accosted".

AlaskaSpeed
08-22-2001, 05:54 PM
I agree. If you spent 4500.00, you are crazy. You made someone a very happy rip-off artist in my opinion. A 440 is not near as fast as a 416, and you can quote me on that....JIM

Chef
08-22-2001, 05:56 PM
its not near as fast as a 416? ok, is a 416 faster on top? i havent found one yet as fast as this anywhere.

AlaskaSpeed
08-22-2001, 05:59 PM
.........hmmmmm....didn't think top speed made a difference. If I pull a guy up to 5th gear and then he walks away from me, that is fine with me. Those first 4 gears are all the usable power you need in a sport quad. You show me how many pro MX or GNCC guys are pegged in 5th>>>>>>>>>>>>>>>>>>: ) JIM

AlaskaSpeed
08-22-2001, 06:04 PM
You might want to add some chassis and suspension mods to go along with that torque monster you have. I would doubt that you could ride that quad to it's potential on an MX track without shocks, etc. JIM

Chef
08-22-2001, 06:05 PM
I know what you mean, but still. How is it even possible to have a 416 out-accelerate a 440? The 440 makes more torque, and in most cases more horsepower. it just doesnt make sense. I've raced a ton of 416s, 440s, and 465s and only been beaten once, by a 465 running on alcohol. so believe what you want, i dont really care at this point.

AlaskaSpeed
08-22-2001, 06:18 PM
Sorry, you are just mistaken. No offense meant, 416's are the way to go and everyone knows it. JIM

Wheelie
08-22-2001, 08:35 PM
Now Children.......

nakomis0
08-23-2001, 05:41 AM
'No replacement for displacement' and don't for get it:D

And back to the Banshee beating:blah I was always neck and neck with my buddies Banshee, he has pipes, K&n filter, V-force valves, and 1 size larger carbs. I had all my mods listed below except a carb. Haven't raced him yet with my new carb, but I should have no problem now.

Then again I got another buddy with a Banshee that has a crap load of stuff done to it, and I'm still about 10 quad lenghts away at the end of the drag strip, never gonna catch that guy.

And Hot440's setup cost so much because he has his lower half done. I would love to build my lower half, (not a stroker though) and hit her with nitrous... give me 2 more years:)

Wheelie
08-23-2001, 09:25 AM
Does the 440 kit vibrate more than the stocker?

Nak---If you don't mind--how much $$ do you have invested in your motor, I know 4500 is extreme, I figured I could build a strong ex for 1500 minus pipe and filter.

nakomis0
08-23-2001, 09:58 AM
Just inside the motor, with me doing the assembly just under 1300$, they did the all the valve stuff for me too. You need special tools for valves.... it just looked to scary for me to do.:huh

Probably viberates more than stock but nothing extreme.

You should be able to build a great, dependable motor for under 1500$... everything besides assembly was done by Magic Racing in MI.

max400EX
08-23-2001, 12:45 PM
Ok back to the mods.... Go 11:1(or 12:1 if you can buy race feul at leasure) 426 lightweight Ross pistons and rod ( www.rosspistons.com ).. get proper porting done, better valve setup (titanium, 3 angle etc). Get an agressive cam, sparks X-6 pipe, run octane boost in ur feul, propper gearing and jetting, WB rev box, +2 JD performance A Arms, TCS tripple rates with rez's all around, +2 LSR axle, Barnett clutch kit, Magura Hymec easy pull clutch.

There are the things that will make u eat piped banshees and raptors like nuthin
(that is also my dream setup... with orange plastics and orange powder coating and a few other things)

Chef
08-23-2001, 09:19 PM
thanks nak for kind of helping me defend my case lol, im glad you understand why it ate away at the bank account so much. and one other thing, where do you get the NOS kits at? any idea how much it costs? and to answer your question wheelie, mine does vibrate a little more than it did stock, and it sounds awesome.

nakomis0
08-24-2001, 04:15 PM
http://www.powersportsmall.com/psp/showdetl.cfm?&DID=17&Product_ID=175&CATID=25

Theres a link to the only kit I have seen on the web, you have to call for the price I guess.

When I was considering it before I talked with a guy in my area, we didn't get in to detail very much about price but he did say expect to pay 1k$. That was to much for me I was looking to pay 400$, and thats only if my engine wouldn't blow up.. and it sounds like a stock lower half would blow fairly quick.

I think you need a computer to control your timing for nitrious, Someone told me when you hit nitrious it advances your timing, like 20 degrees or something? So you need a computer to lower your timing as soon as you push the nitrous, or else you'll grenade. I thought I was just gonna plumb it into my intake boot and control it with a common toggle switch (hillbilly engineering).:)

08-26-2001, 07:12 PM
i wanna explaine why a 416 is faster..lets take my 93 f-350 turbo diesel...it has more torque and hp that my 95 f-150 but my f-150 rev way faster just like a 416....it's all on how fast you get the revs up not how big my motors cubic in. it is...also..hott i think your a 14 year old liar...i would never give a 14 year pld a quad like you claim to have....i bet you got a mini bike powered by a 5 horse b&s.....Hey ...how bad are those 206cc. of raw power


LIKE I BELIVE ALASKA SAID...416 IS THE WAY TO GO.........

08-26-2001, 07:14 PM
OH YEAH...LAST TIME I CHECKED 440'S WEREN'T STROKER MOTORS EITHER

nakomis0
08-26-2001, 07:40 PM
Oh ya a faster revving engine is all you need. Say no more. I bet that fast revving 416, will just blow the doors off that slow revving 660 raptor.

And how much slower do you think a 440 (435 actually) is going to be compared to a 416.

Oh ya that liquad cool 500cc (FST?) will probably be smoked by a 416. I got a 200cc blaster that will kick all there arses it revs up like a rocket.:D

I'll give ya this out of the hole and a little mid range you might have a slight something, but the difference is minimal, and anything past that is all big bore.

Chef
08-26-2001, 09:37 PM
hey do you want proof of it? if you do, i can email you the invoice from when we went and picked up the motor. and you should think before you say someone is a liar, cause you just dont have a clue.

wyndzer
08-27-2001, 06:04 AM
Hey Hott if your crank is stroked and you have a 440 then you are actually running a 416 piston (87mm). If you are running a 440 piston (89mm) then you would have a 460 or 465. I personnally run a 416 and it will smoke a 440 using the stroker crank or not. I have also beat a 460 built by LRD. Not just rider either.

08-27-2001, 03:23 PM
There is no way that a 416 beat a 460.... I still dont get it, if cc's doesnt mater then why do you see drag cars with 700ci motors. If you follow buy that rule then lets go throw a super charger on a escort and beat John Force. J/K

Pro400EXC
08-27-2001, 06:37 PM
Hey. Most Drag cars are 500cu(if your talkin about John Force) The Top-Feul and Funny Cars are limmited to 500cu.

wyndzer
08-27-2001, 06:49 PM
I've got a friend that races go carts, he has a go cart with a 5 hp Briggs and Stratton that will smoke any four wheeler. The bigger bore motors are torque motors they grunt (if you know what I mean) The smaller bore motors (especially higher compression) rev really fast therefore quicker acceleration. Keep in mind a torque motor could run a larger sprocket and get more top end, but then the race is already over. Check www.sparksracing.com he'll tell you his 416 smokes other peoples 440 kits. He has his motors in almost every top ten bike in the nation, he must know a little something?

inacoma91
08-27-2001, 07:05 PM
I have raced karts for 10 yrs. I believe a 5hp briggs will beat a quad in top speed any day. Acceleration is a diff story though. Takes a while for a briggs to get up to speed. I had a 125 shifter kart that would take any Banshee or Raptor or any 400Ex any day. Top speed or acceleration.............:)

Andrew

08-27-2001, 07:39 PM
How many horses does these 5hp briggs put out?

wyndzer
08-27-2001, 07:43 PM
Uhhhh!! 5 hp?

08-27-2001, 09:30 PM
my friend runs B&S 5 hp senior division and his motor runs about 9.5 horse but thats why the motor is only good for like 1 month

inacoma91
08-28-2001, 01:49 AM
Yeah they put out what mcgrath says in hp................9.5 - 10 hp.


Andrew