<< > << > Lynn E. Hanover wrote:
 >
 >  snips...
 >
 >  > Sundays
 >  > GT-3 race was won by Rob Warckoci from Chicago won in his sharp red late
 >   > body
 >  > style tube frame. Sheldon Wilde from Indianapolis was second in his 86
 > style
 >  > tube frame and Terry Whitlock was third in my late style tube frame.
 >
 >  snips...
 >
 >  > Lynn E. Hanover


 >  Lynn, am I reading this right? You are running a 12A motor with
 >  carb in a 1993 and later tube frame car?


 > That is correct. In GT-3 we have the 12A and a carb with two 36MM
venturies.
 > The same car with a 13B and a carb with 44MM venturies would run in GT-2, a
 > faster class. There is only one class for turbocharged cars in the SCCA,
 > (Sports Car Club of America), and that is called T-1 and T-2. This is sort
of
 > a show room stock class for BMWs Corvettes Porsches and other people with
too
 > much money. That is where the twin turbo RX-7 runs.
 > Lynn E. Hanover

 So they handicap you with 36 MM 1.4 inch diameter venturi for the 12A
 and 44 MM 1.73 inch diameter venturi for the 13B. I don't suppose
 they allow peripheral ports either.

 The two rotor version of the Le Mann engine with no such venturi limits and
 peripheral ports would put out 345 HP normally aspirated. 690 HP in four
rotor form.
 What are you getting out of your 12A in GT-3 and what are they getting in
 GT-2 out of the 13B's HP wise?
  >>

The best 12A bridge port with 36MM venturies had 245 HP. The best 13B bridge
ported (so far) has 305 HP, (Daryl Drummond). We could run a peripheral
ported 12A in GT-2, and that would have about 290 HP. We could run injection
if the engine came with injection. Another stupid rule. That would mean a 13B
engine, and we would have to move to a the faster GT-2 class. To be
competitive in GT-2 we would need 320 HP like the Porsches, and Nissans. The
rules do not now favor rotaries. We began running them because of reliability
and cheap parts.
Lynn E. Hanover.

If engine restrictive  rules were removed and minimum car weight rules removed 
rotaries would move to the top of the heap and nobody would race anything else.
When the minimum car weight rule is removed the exceptional power to weight
ratio of the rotary engine would dominate by allowing a super light
weight car to be built.

Imagine no minimum car weight turbo three rotor RX7. No other stock body based car in the
world could keep up with it on a road course. With aluminum end housing it would
be even more formidable.
 
Paul Lamar
 
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