I was wondering the same, i would expect it to be much higher esp when compared to 996tt due to lighter weight. Maybe its the gearing.

 

Bingo! I wondered this all day.

 

Hennessey's ZR1 with just a pulley, headers and tune...around 600 rwhp, went 196.7 mph. Granted, the ZR1 runs a different, closer-ratio 5th and 6th (similar to what I have in my car), which are more conducive to long runs like the mile.

A C6 Z on the other hand, running stock gears, will indeed have a bit of a disadvantage after 4th, since 5th and 6th are so tall, but definitely not that much.

I still believe something is definitely off....

 

The older Supra was a sequential system and NOT compound. It ran one turbo and then flipped a valve to feed both turbos exhaust gas where they ran in parallel - there was some pre-spool time in there too. The FD3 RX7 was much the same. If that's what they are doing calling it compound is incorrect.

Compounding is the compressed output of one device feeding into another. Pulling trucks do this, some planes did it, and the boost levels achieved are sky high. HKS did it with the MR2 Supercharged cars too which was a neat idea. It's been awhile since I did anything in the Supra community but I know guys were playing with both sequential AND compound systems. Straight six engines made plumbing this interesting, certainly more room in there than on the 996! I'd love to hear more details on this car, I too think 750RWHP is low for the boost level I heard tossed around but it's power curve has GOT to be better than a big single. Stock cams hit the wall at about that power level though so who knows. Need more detail :-)

 

Thx Magic, I've long known about aircraft that employed stuff like this but I never knew much about it's application on cars. I imagine tuning and plumbing is a major obstacle. I've read hear and there about guys trying small turbos or even a roots type blower for the low end and then augmenting it with a large turbo for the top end. I think there was a guy on the Evo forums that tried this several years ago. I have no idea how it worked out though. Great concept in theory..........

 

So what is the fastest C6ZO6 on the race??

 

I'm still waiting for them to update thier website with the results from the weekend..

 

I know that for the NA C6Z06's, Eric (AtomicZ here on the forum) ran a 189 mph which is the fastest all motor (No TT, SC or Nitorous) Z06 to ever run the mile as far as I'm concerned.

 

I heard that MTI Racing (the guys that built my car) went 201 in their N/A 500ci C6 Z06 (app. 680 rwhp). A new all motor record.

Also, a cam/bolt-on Z06 with 569 rwhp supposedly went 187 with the following mods:

Custom grind camshaft
Kooks Stainless longtube headers
LS7 Intake Manifold
LS7 Throttle Body
Callaway CAI
ECU Tune

Eric's car makes around 580 rwhp, so the 569 rwhp car running 2 mph slower seems about right.

 

That is phenomenal for an all motor car.

 

Yep. Does anybody know what a stock ZR1 runs in the mile?

 

I thought I saw one do 172 or 169 those are the numbers that are sticking out in my head. I could be very wrong though.

 

184. http://www.youtube.com/watch?v=lxByt-DJMTs

 

He did a 26.0 0-186 which is pretty damn stout for a NA car. I think Marty said it was about a second and a half quicker than his 996TT that did 191...

 

That's very stout. He was flat moving!