Brian Sieber wrote:

On Nov 19, 2004, at 12:48 PM, ACRE wrote:

     Just got Vol 1 Issue 8. Another great issue.
     Looks like SpeedSource.com RX8's are dominating the Grand American
     road racing series with three wins so far.

Sylvain and crew won the ST Class Championship! http://speedsourceinc.com/
They have a long, successful history in rotary racing. Ryan's trip down to their shop earlier in the season yielded tons of photos of their racing FCs (2nd Gen RX-7s)--all in naturally-aspirated form. Here's some more shots from their site: http://speedsourceinc.com/index.cfm?section=mazda&template=pa

     BTW Brian Sieber please tell us more about this racing series.
     What kind of cars are the RX8 running against and what are some
     of the rules? I am also curious about what they did to the NA RX8 engine
     to increase the power.

The RX-8s run in the ST class in the Grand Am series against BMW 3-Series, Acura RSXs, and Lexus IS300s.

     The Aussies are blowing up turbo charged RX8's at 7.5 psi because of the lack of
     low compression RX8 rotors. Hopefully the stock electric assisted turbo charged
     RX8's will not be too long in coming. The whole car buying rotary world
     is waiting for the other shoe to drop.

Not sure if it's so much the high compression rotors as it is the shorter apex seal height--I've heard this from several vendors experimenting with the boosted Renesis. I "believe" the side seals are tapered and are allowing for boost blow-by. I'm curious to know what internal mods Mazda has done on their prototype Mazdaspeed 8. January issue of tuner will focus on Renesis boost applications--including Greddy's turboed RX-8 (300+ RWHP) and the problems they are having mating their Emanage piggyback ECU system to the stock ECU.

I also notice in Automotive News Mazda is making good money.

     All is well in the rotary world :)

     Paul Lamar

Brian Sieber
President/Art Director
RX Tuner Magazine
brian@rxtuner.com
904.525.7371

 
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