JWT vs Enthalpy ECU comparison dyno results!! *Another* 400 whp CodyAce Built Car

[jspaeth]

Originally Posted by TurboB15sentra

Mean piston speed, with the stock stroke, @ 8500rpm, is 24.36 meters per second. Around 25 meters per second is considered the "safe" limit for a street engine. However, there are other factors to consider, such as piston acceleration (from BDC and TDC), rod angle, etc.. The SR doesn't have a large stroke, and the rod isn't super short, so, the angle isn't so severe, that it causes tons of sidewall loading. With a good set of rings, and some lateral gas porting, 8500rpm is safe for any SR bottom end, but, I would never spin one up that high unless I had a VE head to take advantage of it.

Right....I met a guy last week though, who said that he was building a VE head SR that he was gonna rev to 10,000 RPM.

I was like "is that safe" and he is like that is fine.....

Ugh I never know what to think....