cam and piston ?

[exrider123]

What kind of difference will a new cam and high comp. pistion make on my 400ex with a white brothers e-series...will i see a big difference and how much do they cost? and what are some good brands ?

thanks

[jchevy]

Not worth it dont do it. You will harldy notice anything

[Steven]

perhaps 1-3 HP

you'll feel it but it won't be dramatic.

take if from jchevy, its in his signature

[RAPTORAZ]

A pistoned and cammed EX won't feel much different from a piped only EX until you race one. Mine didn't feel that much faster afterwards. However it kills piped EX's and piped Z's with ease now.

[RAPTORAZ]

Originally posted by Steven
perhaps 1-3 HP


According to GT Thunder a pipe, piston, and cam is worth about 5-6 horsepower over stock.

[exrider123]

then what can i do for more power??..i thought this would be good but if it doesnt add that much power i wont do it....what would you reccomend ?

[RAPTORAZ]

Here's my buddies combo:

I.M.S. 440 kit
GT Thunder cam
Head ported and polished
39mm Keihin FCR carb
Sparks head stud kit
Sparks X-6 pipe

His bike runs dead even with my piped/tuned Raptor and our buddies piped/reeded/boost bottled Banshee. I have not seen him lose to another EX yet. Speed costs. How fast do you want to go?

[Steven]

my set up is faster than my friends piped DS650

[exrider123]

how much would all that cost including instillation from a mechanic ?

[Steven]

cam $130
rockers $90
piston $130
exhaust $500
intake & jet kit $180
head work $300
machine work $150
gaskets $25
sleeve $65
sprocket $30
clutch $130

pay a mechanic?

it took me about 8 hours, taking my time

a machanic would do it in half the time... maybe 4-5 hours @ $60/hour

A couple of grand???

[exrider123]

what if i did just the cam and piston...i already have a pipe

what kind of difference would it make ?

thanks

[jchevy]

You can get this info a lot faster through a search. No one will be able to tell you how much faster it is going to be. Every bike is going to be different. Some people might think they got a big gain and others may think they got a small one.

[Chino]

I noticed a gain nothing major but most of mine was low end gain which i wanted for XC racing. I've only dragged against my buddy's stock ex except for a wb slip on and i beat him with ease. just my 2 cents CHINO

[RAPTORAZ]

Originally posted by exrider123
what if i did just the cam and piston...i already have a pipe

what kind of difference would it make ?

thanks

A piston and cam will add between 3-5 horsepower over your present combo. The horsepower depends on how radical you go with the cam, how big you bore the cylinder, and how much compression you decide to run.

[ECAthumperEX33]

If you do decide to go with a cam i'd suggest getting either the TC 924 or 926. Depending on what RPM you want your motor to pull. (XC lowerMX higher) If you go with a piston i wouldn't do anything over 11:1 compression with a stock rod. Also if you get higher you'll have to run race fuel. I got my cam at east coast atv. They have both the TC 924 and 926

[exrider123]

whats the minimun i can run for cam and piston without running race gas