Anyone have experience comparing rod to stroke ratios for autocross??? Or maybe there's a better way to say this...... Anyone know of an info source for how rod to stroke relates to an engines power curve? And I don't just mean that the lower the ratio, the more low end it has..... I mean a chart with real data that shows the ratio, revs, and power delivery.

We are building this D-series for SM and I'm trying to sort out how much stroke to run and if we are going to run a deck plate.

Chris Shenefield

 

btw, i realize this is confusing. What I mean is that I people are always saying.... "oh you don't want to go with a 95mm stroke..that's be horrible." But that doesn't take rod to stroke ratio into account. I guess it's assuming you stay with stock rods or whatever, which I understand.

So, knowing that 1.5 r:s ain't so hot, and 1.75:1 is where you are aiming...... at what point does the car rev well enough for a 8000 rpm redline. know what I mean? I know this is a tough one.... or at least I think it is. Anyone have any thoughts?

Chris