I hear what your saying and yes I do understand those basics of cylinder pressure. But what I was not understanding was the conclusion one should reach from the statement "torque kills engines". I mean, should I stop running 2.2 bar on pump on my 35r/2.4???

I suspect 99 out of 100 built evo motors fail due to poor engine build, bad mapping, or some other issue apart from sheer power killing the motor. So I'm not sure where the value is of saying, "torque kills engines".

I mean on your customer bluebyeyou.. would you have preferred we got an AMS 2 litre versus the 2.3?

 

I agree with you crcain, a stroker in this car, which it had previously, will and did make more low end torque, for sure and quite a bit of it actually. I overlayed the graphs when I was done and other than the RPM he needs to actually race it successfully I was questioning the move to go to a 2 liter.

I recommend an 8500 rpm rev limit on our strokers. I have said it before and will say it again, I have not seen one single rpm related failure on any stroker engine we have built. I could probably bump that recommended rev limit but I don't to be safe.

Eric, Tim and Jeff's cars all had to have the rev limiters moved up at the shootout last week because they were hitting it at 9,000 rpm. So trying to drag race an EVO with a stroker requires a final drive change to go as fast as these guys are. A taller tire with a sidewall that grows would also help but not enough to keep the stroker under the 8500 rpm limit.

I have two bad *** strokers out there now in drag EVO's it is going to be interesting to see how they do.