I am going to start modifying my stock 02 Raptor. Iam going to be putting on the Curtis Sparks Full Exhaust(race Tip), Pro-Flow adaptor(foam), a stage 1 Hotcam, and the 10.75:1 JE Piston. With all of these mods after getting it dialed in and jetted how much faster am i going to be than stock(seat of pants feeling). Also i see alot of people with the 11:1 piston, i went on JE's website and they only had the 10.75 and the 12. I trail ride my raptor and just curious on the reliability once all of this is done. I "DO NOT" want to be running into reliability prob's after i do this. Also would u recommend the 10.75 or the 11. Anyother info. that you can help me out with about these topics would be great(like if i have to change anything else with these mods valves, springs, etc etc etc. Thanks a lot, wanted to get peoles opinion on this setup before i spend the $$$. Thanks again!!!!!

 

We don't have enough info and carnage too assume the Carillo rod is not necessary....right now, I would change the rod if I had the engine torn down. I have the stock rod and the 10.75/1 JE and stage 1 HC and stock springs...all is fine...but who knows what happens tomorrow?
ANY TIME YOU INCREASE POWER, RELIABILITY IS SACRIFICED.

 

I have the je 10.75:1, HotCams Stage 1 on the stock rod combo and have been running it since january, have been running it like a SOB. I have had absolutely no probs with the motor, I dont see how these other guys are running into the problems except for the fact they all had '01 rappys with the '02 convertion tranny.

 

Bump, ttt (Y)

 

What everyone calls an 11:1 is the 10.75:1. Like gary said more power = less reliabillity but not a whole lot with the set up your talking about. I've seen the same parts break on stock engines.

 

So how much power diff. will i notice with this setup over stock. how many bike lenghts and seat of pants feeling.

 

If you are totally stock now and add port work to those mods you mentioned I think you'd prolly need to change your drawers after the first ride.[img]i/expressions/face-icon-small-happy.gif[/img]

 

yea i had to change my drawers after my 686 build,yea it's fast........

 

Except for me!!

 

do you have to tear it clear apart to replace the rod? also, how much difference will it make without port work? i am considering the same thing.