Old May 17, 2012 | 09:08 AM
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Web 3.0
Joined: Aug 2009
Posts: 259
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From: Houston, TX
Default Re: Project Crossfire - a Rotrex Supercharged Limited!

Tuning is coming along very well. I'm making a nice, solid, 260 RWHP which is about 340 at the crank (or roughly +80 HP at the rear wheels) at a little over 11 psi. I'm calculating this based on 16% drive-line loss as displayed on the crossfire dynos I've found plus the roughly 30 HP required to drive the Rotrex at this boost.

For the record, that is 340 HP and counting on a stock NA motor and they said it couldn't be done!

If you take a look at my logs, I've managed to smooth out my boost signal and my A/F is shaping up into a thing of beauty. I think there is a little more on the bottom end as I can lean her out from where she is at now, but not much left on top at this boost level.

By the way, I just passed the 5,000 mile mark with this rotrex bolted on my car in its current form. The mounting bracket and overall design are finalized and I can now turn my attention towards making her pretty! Everything is holding up very, very well.

That said, the one tweak I do have in mind is to build a box around the inlet to the Rotrex so that I can re-position the inlet to put a much larger air filter on it. The filter I have now is definitely choking it off a bit and I would love to put another few pounds of boost through her.




 

Last edited by Web 3.0; May 17, 2012 at 09:26 AM.
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