RX8 Mini Project

WE3RX7 · 06-25-2010, 05:36 AM

Nope - no compression issues at all at the time of the dyno. The only thing that may have held me back from 181-183whp was the clutch slipping in 4th gear around 7500 or so...

238 is crank power, I had 180whp which puts it closer to 213-220 which is actually ABOVE normal for most stock (at that time) rx8s in '04/'05. Many guys were dynoing in the 170s on a similar dynojet system.

190/200whp is only common on modified 8s, guys with every bolt on and great tuning usually only fall around 210/220whp max with an NA platform. You have to remember that rx8s are a bit finicky on the dyno and even using different dynometer equipment can show a difference of +/- 10whp.

The power numbers arent important, but its getting the baseline and having a healthy motor. Also important to use the same dyno each time you test.

I can post up the chart if anybody wants to see (I thought I already did somewhere...)

I

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06-25-2010, 05:36 AM	#11
WE3RX7 RCC Addict Join Date: Feb 2008 Location: VA Posts: 1,812 Rep Power: 19	Nope - no compression issues at all at the time of the dyno. The only thing that may have held me back from 181-183whp was the clutch slipping in 4th gear around 7500 or so... 238 is crank power, I had 180whp which puts it closer to 213-220 which is actually ABOVE normal for most stock (at that time) rx8s in '04/'05. Many guys were dynoing in the 170s on a similar dynojet system. 190/200whp is only common on modified 8s, guys with every bolt on and great tuning usually only fall around 210/220whp max with an NA platform. You have to remember that rx8s are a bit finicky on the dyno and even using different dynometer equipment can show a difference of +/- 10whp. The power numbers arent important, but its getting the baseline and having a healthy motor. Also important to use the same dyno each time you test. I can post up the chart if anybody wants to see (I thought I already did somewhere...) I