Best bore/stroke option
Hi
Looking for some advice. Possibly looking to build a new engine for a stage car. Needs to run in the 2ltr class. If i go down this route id be looking at building a head capable of around 8500rpm. So solid lifters, aggressive cams, dry sumped etc.
I have these three options to hand. Or these three cranks more specifically. Will i see any difference in how high the engine will rev with the difference in stroke length? Will i be better going for longer stroke for torque?
81mm stroke x 87mm bore 1926.1cc (forged crank)
83.5mm stroke x 87mm bore 1985.5cc (cast crank)
88mm stroke x 85mm bore 1997.4 (forged crank)
Cheers
Sion
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Racer
Re: Best bore/stroke option
You don't say what engine it is. If it's one with the tried and tested 86 x 86mm 2.0 ones I would stick with that and save your money for more important things to make the car quicker.
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Re: Best bore/stroke option
Depends on youre rod ratio.
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