Rob and the rest of the gang,Andy made a run of AB 21RX Nitro pipes that's supposed to be the same (inside) to the Irwin S pipe.
I haven't tried mine yet, but will soon.
<a href="http://www.cmdracing.com/updated/tuned_pipes.htm" target="_blank">http://www.cmdracing.com/updated/tuned_pipes.htm</a>
Soooooo many pipes......soooooo little time.....
i forgot about that one, just placed an order..thanks MT
Could i get a better pic or the mid range size i may have 2
Here are 2 pics....the one on the eagle and a new one.
Rob,
Is that Stan Simpson's old SG 21?
The S-pipe on the SG is better than the new one on the bench.
What I'm saying is not ALL S-pipes were created equal.
This is VERY true.
That why I say the AB21RX pipe is "Similar" and not "Exact" to the Irwin 21 Short pipe.
Almost no two where the same as far as rear cone angle. Also, I had Jim make me a special version that I was selling in the late 90's. Irwin S pipes that came through Bill McGraw and others were not the same as our version.
Our version was consistantly 6 mph faster on our Eagle SG/Novarossi combo than the OPS 21 pipe that many seem to like.
68 mph vs 74 mph and the S pipe would hit that speed by half track. The OPS is much slower on acceleration.
Oh, and we could pull off 78 mph occasionally with a perfectly tweaked needle for those of you who like to report your absolute fastest pass!