So what are you going to do for a clutch??? The ATS isn't handling 600hp?

 

This means you've surpassed kudos now right?

Nice job Sharif, I know you're happy with it.

 

Always gotta be reasonable... This is a good point, I had forgotten about the relocation bracket for the Evo2.

Ok, how often are you gonna use 620 whp (~750+ at the crank if I'm not mistaken) on the street anyway?

 

It would be awesome if you could let me in on when and where you plan on doing this, cause I would love to watch

 

100 octane is available in most major metro areas, but only at select stations. You just have to look around a bit. FO rinstance, in Charlotte, at least half of the Citgo Stations carry the 100 octane stuff.

We've made power in the 570whp range on 93 octane. With more tuning, I have no doubt that 600+ is available on 93 octane. But many tuners make the mistake of trying to push the enevelope on 91 or 93 octane fuel. If I had another $10,000 motor waiting in the wings, I would say hell..lets do it.

 

The limits of the ATS twin disc are roughly 700 crank hp, so that has already been exceeded.

The plan is to move to a triple disc carbon ATS with 1350kg pressure plate. Should be good for a claimed 1500hp.

 

Thanks Nis....appreciate the support, buddy!

 

Sharif, maybe you should change back to "vq 626." Your only 1 letter and 5 ponies away!

 

ROFL...thats a great idea!

 

Sharif, I was curious as to what size/brand of tires you're running in the back.

 

Michelin Pilot Sport 2's 285/35/19 rear and 255/35/19 fronts. The rear end is ATS carbon diff, which really helps put the power down cleanly.

 

A 2JZGTE is about the only thing that gonna get you to those levels in a Z.

 

^ I dont think so my friend.. 1000hp Z's are just around the corner.

 

I have the exact same setup except 295's in the rear. I think my next big mod will be either the Quaife or ATS, and upgraded axles. Then new engine management, and then maybe I'll be close to your numbers.

Of course by then, you'll probably be close to 700whp

 

I am shooting for 1000 WHP with my VQ motor. All we have left is the fuel system and the ECU install then break in time for the motor. Then we will be slowly raising the boost until we meet the numbers we want. We are thinking it will start off around 700 WHP on low boost and then slowly move up from there.

 

The drag racing teams have exceeded 1000whp easily. It's only a matter of time before the costs, and expertise of doing this...trickled down to the non-professional racing teams.

Give it time....the Supra didnt turn into a 1000whp monster overnight.

 

don't think it was mentioned anywhere up above, but what gives with the twin disk carbon clutch slipping at these power levels? i've seen other twin disc carbon setups (like the RPS) put down 1000+ rwhp and get abused at the dragstrip without any slippage... was it possibly just not hot enough? I know some manufacturers suggest that you slip it a little before you need it to grab... unlike other friction material, the carbon grips better when it's hot... in some ideal cases, the carbon clutch acts like a torque converter, when you first punch it, it slips to a higher rpm, then the heat makes it "lock up" and you continue on with the pull... but in any case, is it confirmed that this clutch really can't handle this power level?

thanks,
jeff

 

Jeff, you are absolutely correct. In its current state, the carbon ATS twin can't hold 600whp UNLESS you heat it up. Prior to this, you could get away from it.

In subsequent road testing, I have found that the ATS twin disc can easily hold 600whp+ once you warm it up aggresively. This is how the clutches are design.

That said, I would recommend a triple for this power level, and the heavier PP, so that a heavy warmup wont be needed for freeway racing. For drag racing, you definately want to warm up all carbon clutches.

 

Do you loose some drivability going from the ATS twin to the ATS triple?

 

No, they both have the same stock clutch feeling, as long as you don't get the heavier pressure plate.