pistons for throttle bods

[rorz_vts]

can any 1 tell me if what pistons would be best to run with throttle bods as im goin to stick to N/A after some carefull thinkn an wanna do the pistons an a bore out at the same time so low or high cheers peps

[don55]

low or high what ?

unless your building a proper mental engine, you dont need to even change the pistons.

also that was really had to read with no punctuation.

[williamsvts]

think he means low or hi compression.

[rorz_vts]

low or high compression an i dont do punctuation as im dyslexic ok

[don55]

so he is building an engine, a N/A engine, but doesnt know weather to get low or high comp pistons.

looooool, cant wait to see the engine running.

tell me your not building it yourself please

anyway, ill be helpful for once.

high compression pistons create less space at the top of the stroke, but the same amount of air is entering the chamber, so the air is squeezed tighter before ignited. creating a harder, more powerful bang and thus more engine power.

low comp pistons are the opposite, they leave more room at the top of the stroke, which would reduce power, the reason they are used is for turbo applications, as there is more room to fit in more boosted air, that is already compressed.

[don55]

sorry i didnt think punctuation had anything to do with dyslexia.

[Ryan]

brad try not to be so pedantic all the time.

As has been stated you dont want low comp pistons on a NA engine, raising the compression should give reasonable midrange gains.

Although the costs of them would mean for it to be worth while use cams that are slightly wilder and would need OE pistons machined anyway. Then you will have more power :D

[KamRacing]

low comp pistons are the opposite, they leave more room at the top of the stroke, which would reduce power, the reason they are used is for turbo applications, as there is more room to fit in more boosted air, that is already compressed.

Low compression is used to stop pre-detonation as you dont want the air/fuel to ignite as the piston is on its upstroke.

Kev.

[don55]

Low compression is used to stop pre-detonation as you dont want the air/fuel to ignite as the piston is on its upstroke.

Kev.

you mean that the mixture is more liable to pre-det as its under pressure ?

[don55]

brad try not to be so pedantic all the time.



cant help, i do appologise. :afro: