Flash tuning results on a MODDED 99 VR4

[Greg E]

Earlier this year I was approached by Brett from NY who is the original owner of an absolutely gorgeous and meticulously maintained pearl white 99 VR4. His board name is 99MODVR4 and the car has an impressive mod list in his sig. The car is supporting 19Ts (HLs) with some basic bolt-ons. (DSM SMICs, walbro 255, Denso 660s and an exhaust...) The car has 105K on the original motor and it put down some impressive numbers tonight. Especially for how little $$ is put into it!

Ray tuned this car a couple years ago with the MAFT & SAFC2 on race gas and the car put down (believe he said) about 426 AWHP @ 16psi on the dyno. Not bad!

...but tonight, I blew that number out of the water!

This is the 4th flash tune under my belt and this car set the bar pretty high. I used the same equipment & software as before with my 99. I should have logged a 3rd gear pull before tearing out the MAFT/SAFC and flashing but somethings you don't think about till it's too late...

The car is now running a Devils Own Meth kit and quality 93 pump gas was used. After 4 straight hours of tuning my laptop battery couldn't take it and we had to settle with 23psi peak and 22psi at redline. Even still, the numbers are staggering!



IDC's are topping out around 75% with the 660s and it's peaking 16 degrees of timing with ZERO knock. The car is an absolute power mongrel! I wanted to see 500 at the wheels and I still feel the car can get there if I would have had more time.

Even still, this car is very impressive with such a simple setup! Anyone can run it! With the stock ECU, the motor starts, runs, and drives just like stock. Power comes on quicker, throttle response is instantaneous and best of all, the ECU auto tunes itself for altitude, temps, boost leaks... I can't begin to describe just how powerful the flashable ECUs really are! This car maintains all the factory built-in safety's like fuel cut, ignition cut, knock retard.... It still even has all the OBD equipment as well! It's 100% street legal!

At any rate, it's was great meeting Brett and getting the opportunity to make history with his awesome ride! It sounds like he'll be dynoing the car to back up the dyno calculator in the near future so we'll really see how good my magic works!

[Drummer]

This... Is.... Awesome....! Cant wait to get rolling when I finally pull the trigger on the last peice of the puzzle that I havent purchased... the turbos lol :-)

Greg, what do you think I will put down with 15g's, 550cc, full open exhaust, cone intake, wires, plugs, pump etc with an EBC and a flash? The car is a 94 Stealth TT with a 98 SL ECU.

[AudibleSilence]

How accurate is the dyno graph from that program to the graph from actually having the car on a real dyno? I.E. Is it a guess, or is it accurate +/- a few hp. Yes I know all dynos read different, but I wanna know if this is as accurate as one of those iphone dynos or a tool that you can get a real estimate from.

[TwIzTeD_3kGt]

How accurate is the dyno graph from that program to the graph from actually having the car on a real dyno? I.E. Is it a guess, or is it accurate +/- a few hp. Yes I know all dynos read different, but I wanna know if this is as accurate as one of those iphone dynos or a tool that you can get a real estimate from.

It takes your log and calculates rpm vs time while factoring in weight, aero, gear ratios, and baro. Compared to my Mustang dyno results it seemed to be spot on. I say seemed because I'm on a different setup than I was on when I actually dyno'd my car. My car feels slightly quicker than it was before, and this program says I'm making slightly more power (280 vs 270). /2cents

[Greg E]

Greg, what do you think I will put down with 15g's, 550cc, full open exhaust, cone intake, wires, plugs, pump etc with an EBC and a flash? The car is a 94 Stealth TT with a 98 SL ECU.

I think with the proper tune, you'll put down enough power where it'll put a HUGE smile on your face.