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Here it is! Dr. Roof's bad ass RSI Twin Turbo. This beast is totally awesome. I don't know how to put it in words. This bad boy is INCREDIBLE, this much power on 15 pounds of boost! RSI just raised the bar even higher. For those of you that might ask why I had the car on my dyno, I was trusted enough to assist in the project with the help of some other local talent. Thanks to RSI and Dr. Roof for trusting me with this masterpiece! :bowdown: A big :thumb: to Roof and RSI.
 

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If SW can get a clean pass, that should run high 150's on a warm day and low 160's on a cool day. We've run 156 mph 3 times and were doing it with around 1030 rw hp each time out.

Very impressive dyno sheet. Roof - you should put your wing back on, it might help your tires from spinning at 130 mph.
 

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Damn, that's Hennessey TT with nitrous numbers! Congrats Roof.

But to be realistic, super hero SW couldn't get a clean pass before. I'm not so sure this is going to help the cause. You do now know what to expect from ice in the IC (guess).

As far as bench racing is concerned, however, that bitch is the current champ. I can just picture Heffner reading this right now with an evil grin on his face, screaming "more boost!" on his own monster.

These new TT wars sure are fun! Wish I was driving one.
 

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Bad Vpr - that is more than we have made with NOS.

Twin - Roof's SC has lowest boost only ET at 9.63 and we have the mph record on boost only at 152.2. Roofs new ride should break both of those records pretty easily.

The only downside to having really big dyno numbers is if you are not able to get similarly great numbers at the track. I dont think Roof will have this problem like other dyno queens have.
 

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Making HP has not been the problem of this car, finding the "right" clutch has been. It's going to be a fun ride. The car was always fast, I only hope we have the trans/clutch problem fixed. We will find out very soon....

SW
 

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dayammmm
 

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good lord thats a lot of horsepower...hopefully the tranny/clutch problems are worked out for the V10 nats....
 

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Wow, awesome Roof!!! Congrats!!! /images/graemlins/thumb1 Now I am going to wish even harder that I could get my ars out to Shreveport to watch this beast run!!!
 

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Who built that awesome motor?

Did someone say RSI, they have always built great motors. RSI great build, fast cars.

Congrats to Roof for being the owner and congrats to Gerald, Jason and all the guys at RSI for such a sweet build.

SW
Hold on this will be one hell of a ride once you get moving without wheel spin.

complain, complain. complain, they need a special class at the V-10 Nationals out of the unlimited class, complain, complain. LOL

rohn
 

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This may be naive but here goes anyway, Hows about taking this beast to Texas Motor Speedway, Road America or Watkins Glenn or some Roadcourse where the car can truly be tested beyond a straight line? This car would probably wipe up the C5 Vettes and porsches that compete in the ALMS with the AC on:nod:

Jay K.
 

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WOW! Congrats to David and RSI. The most impressive thing to me is that considering that the most efficient turbo systems in the world are capable of providing roughly a 32 rwhp increase. At 15 psi that would be a 480 rwhp increase. That would mean that you are making nearly 630 rwhp on a low compression engine. That is amazing. You better turn that thing down until someone figures out how to drive it.
 
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