how to get over 60hp?

[dirtman91386]

ok i have a 08 700 with your basic bolt on's...full hmf exhaust pro flow with k&n and pcIII...my bike dyno'd at 52hp and 50lbs/tq....what other mods could i do to get it above 60hp and still let it be trail ridable? a higher compression piston and stage II cam do it?....any input would be great

[BuDDy L]

Originally posted by dirtman91386
ok i have a 08 700 with your basic bolt on's...full hmf exhaust pro flow with k&n and pcIII...my bike dyno'd at 52hp and 50lbs/tq....what other mods could i do to get it above 60hp and still let it be trail ridable? a higher compression piston and stage II cam do it?....any input would be great

get a 250r and put a 410 kit on it????


lol man im messin with you to be honest im not sure good luck

[wrekd]

Originally posted by dirtman91386
ok i have a 08 700 with your basic bolt on's...full hmf exhaust pro flow with k&n and pcIII...my bike dyno'd at 52hp and 50lbs/tq....what other mods could i do to get it above 60hp and still let it be trail ridable? a higher compression piston and stage II cam do it?....any input would be great



The cam and piston should get you close. Alot of guys run the CP "TECH" 11.5:1 piston with good results.

http://www.tqsatv.com/products.php?cat=18

[yfzrider690]

I don't think you're gonna pick up 8hp with just piston and a cam. I would do some porting along with the piston and the cam. The porting alone should get you 3-5hp depending on where you have it done. With those three things you should be close to 60hp.

[dirtman91386]

how much does porting cost? what are the benifits? are there any drawbacks to porting?

[yfzrider690]

Cost depends on who does the porting. I had mine done at mmad in california and he charges 550 for tear apart and clean, porting reassembly, flow bench and a little valve job. It increases the intake ports and exhaust ports so more air can move through which increases power. There aren't any drawbacks to porting that I know of.

[dirtman91386]

what mods does your bike have and what kind of hp are you throwing down? thanks for the previous advice glad sombody on here can point me in the right direction....

[yfzrider690]

I have a '07 yfz450 with a yoshi rs-7 exhaust, modquad intake with oversized k&n filter, cam mod, 12.5:1 high compression piston with the porting and I am probably around 50-52 hp. It smokes my dads '06 raptor 700, he has exhaust, filter and programmer. I am gonna get a set of cams and get my carb bored out next.

[wrekd]

Go sign up on raptorforum.com and send VelociRaptor a PM. I've heard nothing but good things about his port work. His name is Bo.

Its a really good site too. You can learn alot over there.

[EIGHTYSEVEN]

You're going to need to do some head work, cam and piston. With the right tuning you can get 60wrhp, however you might think about boring out your throttle body as well.

I have an 06 Raptor 700 with JE 12.5:1 piston, ported head, Web stg 2 cam, bored 3mm TB, Programmer, and Fuel ATV intake. Makes 64rwhp and 59lbs/tq. I ride in the woods and is very reliable. Just find yourself a dyno and get that thing tuned, you will be surprised how much of a difference it will make.

[dirtman91386]

well i went and got a 11 to 1 piston stage 3 cam +3tb and a dyntek programable ignition....from what i have read this will push me into the low 60's with out port work...im just not ready to do port work

[EIGHTYSEVEN]

With my 11.5:1, I was able to get 56 hp and 54 ft/lbs w/o head work and TB, So you should be right on if not pretty close.
Good Luck

[dirtman91386]

thanks man i hope it goes great and runs even better.... should be a pretty mean drag machine...lol

[wrekd]

Originally posted by dirtman91386
well i went and got a 11 to 1 piston stage 3 cam +3tb and a dyntek programable ignition....from what i have read this will push me into the low 60's with out port work...im just not ready to do port work


Another thing that would make a big difference is losing the HMF system. The Barker and DMC duals are making around 4 1/2 more peak hp than the HMF or any single exhaust for that matter. And around 8 hp more around 8k. That was looking at dyno sheets on the same machine just different exhausts. My HMF is coming off ASAP. Im probably gonna go with the Sparks XX6 MX. Supposedly its putting out the same hp as duals.

[dirtman91386]

ill agree with you about the duals....but i was told that they only make that 4.5hp and 8 peak hp when you get past 60hp...so from my understanding if your not even close to 60 your not really leaving that much hp on the table...i understand i might me losing 1 or 2 with the hmf but i cant believe that a big 3 raptor with duals would put out 4.5 more hp than one with just a full pipe....but i could be wrong...check out raptorforum.com if anyone would know someone on there would.

[wrekd]

Thats where I saw the dyno charts at. Im a member over there. Same screen name...lol... I'll see if I can find em....

[dirtman91386]

go to recent posts look for my sn.....piston cams and crank....one of the sponsors said it

[wrekd]

Sorry, it was moddedraptor.com...Here is the pipe shootout though. It was just the HMF that scored the lowest. But its still crazy that an exhaust could make that much of a difference!!

http://www.moddedraptor.com/community/raptor-700-mods/4591-pipe-shootout-duals-vs-singles-700r.html


IDK if you have to be a member or not??

who bored your tb and how much did it coast

[09RappySe]

I know tech quad shop does it for $150 to +3, I'm sure there are others.

[dirtman91386]

tech quad shop did mine for 150...im very happy with it...only grip i had was about shipping....the place they use to bore them is in findley ohio...if you got a email i can send you a pic of mine

eric@millertimekennels.com do you have a number for the or a way for me to get with them thanks. Eric

[yfzrider690]

Sredrum over on yfztech also does them. He bores a lot of yfz's and now also does the throttle bodies on a couple different machines. Here is a link to his prices.
http://www.yfztech.com/forum/index.php?showtopic=22416

[09RappySe]

Tech Quad shop.

Steve will hook you up.

http://www.tqsatv.com/