Quote:
Originally Posted by Lynxis
We aren't comparing a stock twin to a stock SS 1LE, we are comparing a boosted twin on aftermarket coils and rcomps which all combined will be similar money to the SS 1LE and learning the SS 1LE is still faster...
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Speaking solely to the power comparison, I think the problem (and I'll probably get flamed for saying this) is that the power a rotrex SC makes is over-rated. It keeps making more boost until redline, but the midrange is wanting in comparison to an equivalent whp NA or turbo setup. Here's a dyno of a JRSC BRZ with high boost pulley and e85.
And for comparison, here's a 2015 Mustang GT.
The peak hp is comparable (370 vs. 384 whp) but when the BRZ upshifts and lands at say 5000 RPM, it's only making ~235 lbs-ft vs. the GT making 350 lbs-ft at 4500 RPM.
The JRSC kit is great at being track reliable, but the way it builds boost leads to somewhat inflated peak whp numbers. Not saying the peak numbers are wrong, just that it doesn't have the midrange one would usually expect with that level of peak whp. Probably explains why some people with the Rotrex kits feel it should be faster than it is. Just my 2c.