KPG

Well, the car is tuned and ready to run. I have my custom, all out 1.25+ bar program from Kevin at Ultimate Motorwerks installed. The upgraded wastegate springs are in and adjusted properly. I drove up to Mid Michigan Motorplex in Stanton,MI for their Sun Test n Tune. Weather was overcast and a balmy 62 degrees according to the outside air temp gauge in the car. All these times except the 30-50 and 50-70 were captured today at the track. 30-50 and 50-70 were taken on the street previously. Here is an overview of the times and I will detail the individual runs with graphs and run logs or time slips.
Best ET 11.753 Sec
Best Trap Speed 128.24 Mph
Best 0-60 3.6 sec
Best 30-50 1.24 sec
Best 50-70 1.22 sec
Best 60-130 7.9 sec 1 shift
Best 60-130 8.59 sec 2 shifts
Best 0-100 7.9 sec
Best 100km-200km 6.8 sec 1 shift
Best 100km-200km 7.5 sec 2 shift This is for you Toby!
Kevin’s programming is unreal. I jumped almost 6 mph over my previous attempts running with a tame file he wrote for my wife. Tame is a relative word because it still boosted 1.3 bars and ran 122mph and this all out file was only 1.2 bars. The key is the torque in the programming. My wife’s file was not optimized for torque values, for obvious reasons. When I installed this setup and got it running, I was stunned with the performance. Never did I think there was significantly more power left on the table. Kevin claimed with upgraded wastegate springs and proper tuning to take advantage of them I could realize a 20% increase in mid range torque. Yeah sure! I did the springs anyway because they provide more consistent boost control, but I felt 20 percent more torque was unlikely. Heck it was running 0-60 in 3.7, 50-70 in 1.4, and 30-50 in 1.4. How much more could there be? Well, lots as a matter of fact. Kevin warned me that adjusting wastegates is not for the impatient. Lots of minor tweaking and a few FedEx shipments between MI and WA with my Pocket Programmer ensued. I got the gates adjusted perfectly the first time and Kevin wrote the file perfectly the first time as well. No TB shutdowns or other issues at all. He also wrote a few other lower performance files as well to make it a grand total of eight in the PP. He was not going to charge for the custom 128+Mph screamer file at all. I suggested that it was only fair, given the time put into these files that I pay something. He agreed, which is great because otherwise I would have had to send him a Christmas present and that would be awkward!
The quarter times were straightforward. The ET went down marginally, but trap was way up. I never had wheel hop issues before. Now I have serious issues with wheelhop. Once it got out of the box it ripped down the track. I had 4 11.7’s in a row around 126-127 mph. 60ft times were terrible, no better than 1.9, but I wasn’t willing to beat on the car for the extra tenths.
0-60 and 0-100 times were pulled out of the Racelogic GPS data stream at the track.
I must say I am very happy with the 60-130 times. To put in perspective just how much kick in the mid range this programming and turbos have consider this: To get my best times in the 60-130 I left the line gently in 1st and shifted at 40mph DIRECTLY to 3rd gear. This would make only the 3-4 shift needed in the 60-130 range. In 3rd gear, I would have full 1.2 bars around 50-52 mph and would cross the 60 mph threshold with a full head of steam and a quick 3-4 shift and 7.9 sec was the result. The 7.9 was great but the time slip of 13.4 still had a trap of 125+ mph with NO second gear!!!
All that is left to do is get the Tshirt and the Dyno sheet. Dyno is set for Mon the 18th and the results will be posted shortly therafter. Any guesses to HP given these performances numbers? Just like the Price is Right…closest without going over wins.
I hopethis has been an informative read for those who followed from the install, breakin, and finally the hard numbers. I just hope that anyone who is going to spend their dollars on any tuner do their research, make the calls and ask the right questions. In the end, I found a tuner who makes his own turbos and writes programming files specifically my setup. Sub 8 second 60-130 and 128+ mph in the quarter mile is quite the value when one considers I am not even close to 5 figures spent with this setup. Kevin M: Well done my friend! Markski, thanks for all the info as well.

KPG

A few more

Dock

Congrats on your mods! That trap speed is amazing.

KPG

Dock, Thanks. I sure am one happy customer. I have a stack of time slips and it was consistent 126-127 all day long. I am more shocked by the 125mph trap with no 2nd gear shift during my 60-130 runs. Kevin sure wasnt kidding when he said there was much more power in this car... the understatement of the year! Kevin

Dock

Still stock internals, right?

KPG

Yes, but that is where the programming comes in. Kevin is limiting peak torque to protect the rods. I am sure he will chime in, but we have spoken at length about the internals and the need to protect the rods. His programming is so flexible it is mind boggling. After these numbers we spoke today and the rods came up in conversation and he stated he could add another 10-15 % torque with his programming but at the expense of the internals. That file I used is wild. I will probably just run my 1.1 file he wrote anyway. Heck I am getting bad wheel hop on the street now. Kevin

Dock

Using a 1/4 mile ET-to-horsepower calculator, if your car weighed 3600 lbs with you in it, then you would need ~570 RWHP to trap 126-127 mph.

KPG

What are you trying to say? Torque wins races , not horsepower. I have a dyno appt on the 18th and I do not think it will produce 570 at the rear by any stretch of the imagination. I am going to run RWD for the dyno though. Kevin

Dock

You calculate horsepower with this formula...

Hp = rpm x torque, divided by 5252. So torque and horsepower are related. You can't have one without the other.

Also see this calculator...Quarter mile trap speed-to-horsepower calculator

wross996tt

Kevin, Congrats man! Those are fantastic numbers. You and I are both happy with Kevin's support. Mine goes in for dyno this week and perhaps some Kevin fine tuning...as you know I'm dealing with altitude as well.

Kevin

Kevin, congrats on the awesome runs and determination to see your project come this far with your own hands.

I have to take my hat off to you for doing all that was and is required to turn the wrench on your car to maximize the performance of your car..

Installing your turbochargers, and headers and taking the time to break the Zero Clearance turbochargers in, have paid dividends.. The key in all of this is matching all the components together. Our good friend Markski is the one to blame/give credit for going for the wastegate kit..

Folks when I told Kevin he would see 20% increase in the midrange, his words were "sure" Send them... So Kevin is that the best $295.00 you spent?

The turbochargers are able to get up to boost and maintain shaft speed without dumping energy out the wastegate. The porting of the headers and housings, allow the rotating assy's to run at very high speeds. The Zero Clearance process on the compressor stage insures maximum efficiency thru the entire RPM range. Instant boost..

The programming with the flexability to add and change programs and files, makes this a very powerful package. With talking to Kevin, the torque output must be controlled. Boost and torque run hand in hand.. These turbochargers are capable of 1.4bars.. But things must be limited, fueling concerns would crop up at those levels..

Kevin, enjoy you car... I've enjoyed working with you..

red993tt

Awesome shifting Kevin. Your 60-130 mph in 7.9s is identical to CGT time. And 0-100mph in 7.9s is identical Ruf CTR Yellow Bird

TB993tt

KPG
Awesome post - probably the most thorough ever on RL

Edited - need to push the right calculator buttons

AdamT

RUF CTR yellowbird is 6.71 0-100 mph

KPG

Toby, thanks alot. I made a point to get the data for the 60-130 times with 1 and 2 shifts just for you, as well as th 100-200km times. I aim to please. All that is left is the dyno next week and I am going to run that RWD. BTW, with Kevin's magic sprinkled over this car any semi-trained monkey can do these times!! Kevin