Interesting.

 

I would guess that I am a little faster from 40-60. After 60, I'm sure the RX6 accelerates much faster. It's interesting to see the results. I would like to see more posts from other cars.

 

Once weather clears up, a friend and I will go testing. Maybe we can get Derrick (20B T-66) to do the test too!

 

Cool. I would like to see results from lots of cars.

 

Actually, I think a 60-90 mph time in 3rd gear (starting at ~50mph) is more useful, as it gives a better measure of our car's top end and eliminates shifting as a variable. Over the last few months I have compiled a few times.

2002 stock Z06 3.5s
1999 A4 Camaro Lid, Exhaust 4.9s
2001 M6 Camaro (headers, lid, MAF, exhaust) 4.6s


At 12.5 psi I get a two way average of about 3.4-3.5s with HF cat and M2's stage 3 package....even by adding a passenger I see a pretty consistent .2s increase in my times. The 3.5s is consistent with the fact that I ran dead even with a Z06 from a 60mph rollon.

By the way, a stock RX-7 is supposed to do this test in about 5 seconds flat.

 

I will do your test, and post the results here. How about doing the same with my test.

 

Just installed a Blitz SMIC. Did the test again. First run 5.21, second run 5.10. Average time approx 5.16. That's a good improvement.

Now if I can just get it to idle right.........

 

RX-7 FMIC DP Exhaust = 5.1
2002 M3 Stock = 4.8

 

I will do your test soon. Did you floor it at 60, or 55, and start the timer at 60?

 

ack. What boost? Main cat still on? I absolutely eat new M3s.....

 

Sorry Adam, I'll try to do your test tonight. On the 60-90 I floor the car around 50-55 mph and start timing at 60mph. 4.8 seconds for the M3 is exactly consistent with what other M3s do.

 

Yeah, I believe you. My RX isn't quite dialed in yet. Main cat is a high-flow Bonez. But I think my pri boost is down.
Also, 60-90 is perfect for the M3, it is right on the cam.

Comparing different cars is a little bit of apples & oranges, as gear ratios are different. eg. the M3 is a 6-speed. (Mine is SMG)

Adam, floor it at 50 ......

 

I looked at my time from the first run, and thought I had made a timing error. I made a second run, and it was faster. I started accelerating around 55.

1st run: 3.65
2nd run: 3.53

AVG time 3.6

Looks like the car is breathing really good with the new Blitz stock mount intercooler. This may sound funny, but I also have to give a lot of credit to my "cheap bastard" stock airbox mod. I am running about 12.5 psi.

 

I got 5.25 seconds 40-80mph. 30 deg C Intake Temp