Went in to MTI Atlanta for a dyno tune today. I didn't have a dyno baseline. Car has TI exhaust, LGM Street Series LT's with no cats, "LS6" intake, 160 thermostat, and Blackwing. I will go to the track Friday or Tuesday to find out what difference the mods made. Before mods it ran 13.4x @ 108.xx. Its a '97 6-speed coupe.

 

You have good numbers.

 

I put down the same numbers in my A4 with long tubes/tune/cai.

Didn't run at the track then tho...

 

Looks like some solid numbers. Did you get numbers from the before tune state, just wondering what the tune itself picked up.

Mind if I ask what kind of $$$ the dyno tune set you back? I may get mine done there after a few more mods. That or Vengeance Racing up in Cumming where I had my clutch installed.

Did they do a dyno tune + some time road driving/tuning or just the dyno time?

 

Looks solid!! Good Work!

 

I don't have a "before tune" baseline. I'm not sure about the road driving, I'm pretty sure it was just on the dyno BUT the car is driving fine with no surging and no codes. It's not night and day difference, but my car was dangerously lean before the tune so I am very happy I took it in. At least now I have peace of mind that the car is operating as it should.

 

Good #'s I have almost the same mods with the addition of a bumpstick, making 405-402 to the wheels.

 

Thx for the post. I have the LG streets with hi flow cats and the LG big 3" exhaust on the way. I think the big 3" will give me slightly more power then the Ti but I only have a K & N air filter in the stock box. Did you get a dyno tune? How did the car run after the header install. I will let you know how my dyno is since we have similar mods (you have more)

 

Good numbers. With almost exact same mods on their dyno, my '99 did 346/357. You'll happy with the improvement at the strip. I know I was.

 

What were your times at the track?

 

My best was 12.81 at 114mph on some worn out PS1's. It really needs a set of DR's.

 

12.6 in the 1/4 mile

My dyno numbers were 348HP & 358TQ on a dynojet very close to yours.

Factory runflats no burnout, and it is a 99 6-speed

The key to success at the track will be feathering the clutch with the right amount of rpm to get off the line quickly and get a good 60' time without any wheelspin or wheelhop. My 60' was around 1.90, which isn't to bad with runflats and basically launching of idle.

you should definitely be in the mid to upper 12's

 

This is perfect timing.. I have the same year/mods but catted longtubes and am getting a dyno tune in a couple of weeks. I was curious what the results would be, and its great to see the outcome on a nearly identical setup.

Congrats on your numbers, let us know what you run at the track!

 

Well, I went to the track and made 6 passes. The best was a 13.10 @ 109. Pretty disappointed. All of my 60' times were in the 2.2 range. How the hell do you get a 1.90? I tried leaving at 3k, 2.5k, 2k, slip clutch, quick out on clutch, dump clutch...just couldnt get a decent 60'. I cant believe how disappointed I was/am. I was sure it would run at least a 12.99. Oh well, nothing $ wont fix.

 

Try playing with your tire pressures, those C6 runflats aren't the stickiest tires out there. 13.1 isn't THAT bad... how hot was it?

 

If you were at Commerce, go ahead and throw those times out. No one runs what they are supposed to there.

 

Hey Jim! I would like to ride with someone driving a similar car that is getting lower 60' times. I will probably go back Tuesday and try again.

According to wunderground.com:
Time: 7:40 PM
Temp.: 77.0 °F
Dew Point: 68.0 °F
Humidity: 74%
Sea Level Pressure: 29.85 in

 

Yeah but...my 13.4x passes were there (commerce) before the mods and you are running a lot faster with a similar car/hp/tq.

I can get us in free on Tuesdays and Fridays. Let me know when you want to go again and we will make a night of it!

 

Just keep practicing. It certianly wasn't my first attempt. Most importantly, forget about the timing tree it will just throw you off. The 60' time is very hard to get lower with these cars, assuming you have runflats. What you should come away with is how was the car responding. Tire slip, wheel hop, engine bogging. Knowing what was happening with the car will be key to getting better times. If tire spin, then to much throttle to soon. If wheel hop then to high of an rpm launch, and if engine bog then not enough rpm. Most likely it will be a combination of feathering the clutch and then once the tires have just enough traction then laying into the throttle. One thing I always did when running on the runflats was always driving around the water box (no burnout). Any water on the wheels when leaving the line will make you lose traction rather than gain it.

Don't be discouraged when I first starting running the 1/4 I was mid 13's all day.

Some other tips, lower the tire pressure, make sure you don't hit the rev limiter but get as close as possible.

One thing to clarify with my setup is that my dyno numbers were with a cam installed and tune with a higher rev limiter setup due to changing out the valve springs. This greatly helped with keeping from having to shift into 4th before hitting the finish line.

Good luck for next time and remember to have fun, better times will come

Also seeing you are from Georgia, the heat and humidity will definitely hamper your times.

 

Take solace...the car is capable of high 12's...but you need seat time!

Practice and good rubber is all you need.