opinion on mods?

[400exfan19]

i have the following mods already: full fmf powercore IV exhaust, K+N filter and its jetted. Are the gains any good if i put in a 10:1 comp. piston and stage 2 cam? im scared to put in 11:1 because im usin 91 octane. is a timing key a good idea?

[400exfan19]

any1
?

[Eviltanker]

It all depends on what your looking to get out of it. Bottom end or Top? Bottom end you can get away with a stage 1 and 10:1 you should be happy for shredding trails.

[zrpilot]

Originally posted by 400exfan19
i have the following mods already: full fmf powercore IV exhaust, K+N filter and its jetted. Are the gains any good if i put in a 10:1 comp. piston and stage 2 cam? im scared to put in 11:1 because im usin 91 octane. is a timing key a good idea?

You would like what a 10:1 and a HC StageII will do for your quad.

As far as the timing key... I'm not a big fan of them, but others here have reported good results...

Originally posted by zrpilot
You would like what a 10:1 and a HC StageII will do for your quad.

As far as the timing key... I'm not a big fan of them, but others here have reported good results...

+1

See my mods.

I'm real pleased with them.

My builder recommended staying away from CDI's and timing keys.

[400eXr1d3rZ]

You'll need an aftermarket CDI, well won't need but it will benefit you alot. Just stay away from White Brother, I suggest Procom Magnum CDI, works great for me. As for a timing key, you don't need it for a modified motor.