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View Full Version : How many ponies would I be kickin' out?



yellow400ex05
01-23-2008, 01:52 PM
How much horsepower and torque would a 400ex with..

Hotcam stage 1
HMF-slip on
04-05 450r carb
416 kit
11:1 compression piston
mild port job

make for Torque and HP?

thanks:macho

250r4life
01-28-2008, 12:36 PM
probably a solid 16.5 hp, maybe 17 if you have a really good port job...

8686
02-01-2008, 09:12 AM
Yeah put some V-Force reeds in it. You'll pick up some horsepower.

CSR400EX
02-02-2008, 12:40 AM
Originally posted by 8686
Yeah put some V-Force reeds in it. You'll pick up some horsepower.
haha, yeah:rolleyes: but really, id say around 35 on hp.

rideracelivemx7
07-16-2008, 04:00 PM
lmao, 1. you cant put reeds in a 4 stroke lol and 2. the ex has 29 sock... the warrior has 17 stock if thats what your thinking of hah. id sayoud be pushing 34 to 35. i didnt port. but i did 11:1 440, stage 2 cam and motoworks slip on and some other odds and ends and impushing around 42hp

Duke Nukem
07-16-2008, 05:03 PM
Originally posted by rideracelivemx7
lmao, 1. you cant put reeds in a 4 stroke lol and 2. the ex has 29 sock... the warrior has 17 stock if thats what your thinking of hah. id sayoud be pushing 34 to 35. i didnt port. but i did 11:1 440, stage 2 cam and motoworks slip on and some other odds and ends and impushing around 42hp


42hp:eek: You must have NOS:confused: The best I have seen on a EX was a fully loaded 465 stroker making 40hp.

rideracelivemx7
07-16-2008, 05:51 PM
well thats the most ive got. i figured 40-42 range. this dyno is mine just one compression level high with out the exhuast. and ive got the slip on. so i figured im in teh same range

http://www.geocities.com/gtthunder.geo/440exmod.jpg

07-16-2008, 09:26 PM
i would say mid to high 30's