Thread: V8 - Rx7
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Old 29 Mar 2005, 03:43 am   #65 (permalink)
RexRyder
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Join Date: Mar 2005
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Quote:
Originally Posted by onikageka
RexRyder: Help me out here. Post the dyno sheet. Or at the very least post the RPM's for the peak power ratings on this mythical rotary.
Sorry this was very long time ago, but I could tell you the setup. It was one small turbo only capable of ~8psi (good for low end torque), and another bigger one good for 30psi. If you are a v8 guy (which u kinda seem like) you know of exhaust cut-outs right? well there are PSI activated exhaust cut outs that were used on this twin setup. I'm not sure how it was setup, but I have a pretty good idea: 1 cut out for each turbo, the smaller turbo's cut out remained open until 8 psi, the larger one was closed, then at 8 psi it is reversed. The torque was as low as 2k I believe. But like i said before it really depends on which turbo(s) you have. Some guys are even experimenting with VATN turbos (variable turbine exhaust A/R). There are "vanes" on the exhaust side of the turbo which can vary the turbo's A/R. 14psi can be had as low as 2k. Also some specially matched T3 turbos seem to be very promising, there is a dyno sheet of 300hp/300lbft of torque at 8psi.
Dont get me wrong I like the torque V8's put out, and just overall power, but in a nice classic muscle car. And please dont assume just because its rotary it has no torque (which a lot of ppl do), it just really depends on what you put into it, and what you want to use it for.

Last edited by RexRyder; 29 Mar 2005 at 03:51 am.
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