Head shims

[darkside]

Ok well boys i have been learning so much on this forum, you could spend days on here and still learn news things every day. Now i may have a stupid question but what are the head shims for. I have herd that they are for the percentage of nitro you are using. Now the question is how many shims for what % of nitro if the above statement is true

 

[Crash]

with your stock mill, check what the mfg. recomends and go from there
less shims raises compression
but, too much will hurt your engine
all engines are different

 

[pmp]

you can use head shims to get a little extra out of your run time also as when you ad shimms it incresses the volume so you can lean it out a touch. This takes away from your bottom end though wich can be compinsated for with clutching. but fo just bashin I would just run what the mill manufacturer says to run.

 

[darkside]

ok thanks. well I'm running 20% nitro and i have 4 different motors, HPI .46, Picco .28, werks colirro .30, and a hotbodies 4.6 , well not running the 4.6 seeing as i can't find tpv to fit the motor.

 

[Larsenracing]

well not running the 4.6 seeing as i can't find tpv to fit the motor.

May be a dumb ? but whats TPV?

I agree with these guys, unless you know what to check I would leave them in there. The thin one can probably be removed but I don't advise it.

 

[darkside]

i thought tpv are the chassie plates

 

[Hankinator]

TVP = Twin Vertical Plates aka Savage chassis plates.