I have been waiting on cooler weather to go the track, but decided to go ahead and give it a shot yesterday anyway. Temp was in the mid 80's in Alabama. I was afraid to launch too hard on the slicks being 2 hours away from home on a Sunday afternoon. The slip is at home, I will scan it later, but it was basically a 1.9 60ft time, 12.9@106mph. All my runs were 13.0's with 2.0 60ft times, and then I launched a little harder on the last run.

It gives me some good hope for cooler weather and harder launching. I think it will go 12.6's this fall, if I don't move on to bigger and better things first.

 

Very nice! I knew you'd get there sooner or later. What rpm did you launch at?

 

I was launching around 2500-3000rpm. I think I gained more from the gearing help (24.5 inch slicks) that from the slightly better launching ability. On the street tires (basically 26 inch), I hit the rev limiter right before the line and it hurts times. Now I get to shift into 4th before the line.

 

Cool man I been waiting for your times. Cant wait to see what you can do once weather cools down.

 

vey nice, you see it aint that hard at all,lol. to me its a lot harder to do better than 12 than to get to 12's.

 

Nice work. Launch harder If mardigras is not breaking launching at 22psi and a 125shot, you're not going to break. 1st and 2nd gear in our cars are pretty decently sized.

 

Bring a spare driver side axle. That's pretty much the only thing that might break. I dead hooked a 6500 clutch dump with 23 inch slicks. Granted you have alot more topend power but you also have 24.5" slicks. Mardi was able to pull a 1.71 with the same sized slicks on 7" wheels.

They say the best launch rpm is peak torque so you don't have to "climb the mountain". I'd try a 5000 dump after a good burnout.

 

wow this is becoming a everyday thing now .

in less than two weeks ill be testing a 3.5 IM on my car at the track,hope i join the club

 

everyday thing? There are only 3 to my knowledge. There are several more close, but not there yet.

 

He probably just means it's becoming more common now. And I see his point; you didn't even have to launch the thing hard to pull a 12.9. It's looking like you could pull a mid 12 without even fine tuning the engine with the E-U or such. I knew 4.5 gens would keep surprising people with their potential.

 

im gonna have a low 13 sec slip before the winter.

 

Congrats on cracking the 12s!

 

Good work!!!

 

Congrats! Trapping 106 u can definately get down to a 12.6 or better.

 

congrats matt!
I have 2 questions
what do you think you would be trapping on street tires?
how much do you think the 3.5 swap took off your previous best 3.0 ET?

If I recall you were hitting a 13.7@103 with a 2.1 60' on a nice cool day. so maybe 7 tenths?

 

I trapped right at 106 mph in cooler weather on street tires, and that was having to shift to 4th right at the line. On a 2.1 60 ft time now, I would imagine a low 13. I guess the 3.5 would be around 5-6 tenths as of now. Don't forget I have yet to run the 3.5 in cold weather. It was already fairly warm this spring when I got it done.

 

Congrats. Shots of 151 around the house, lets celebrate this! lol This is really great news that we have several people doing 12s all motor. Good going

 

Congrats man! That is most impressive!

 

Crongrats nice time

 

Nice!!!! Should see some 12.5's launching it hard in some cool weather.

 

That would require a 1.6 60'. Although it's possible to pull in a FWD car it's a lot harder to achieve than in a AWD or RWD.

 

how so? He will be running in 40 degree cooler weather, that paired with a mid 1.7 60' should yeild 12.5X's all day.

 

thats a good run

 

It's just not traction needed at that point, it also takes a good amount of power. Mardi can pull 1.7 60 foots because he's making a crapload of power. 240-250whp in a 2800lbs probably isn't going to land a 1.7 60 foot.

 

congrats on the 12.9, did anyone you raced that day freak out?

 

JClaw has already done it with less power, his car might have been a hundred pounds lighter, but 30+whp more makes up for that. Matts car makes 270whp+ so launching hard should yield 1.7's all day if the track is hooking. He11 dandymax is pulling 1.7's with a 3.0.

 

The car weighted about 3050 lbs with me in it. Around 2880-2890 w/o driver. I had maybe 230-235whp, tops.

 

thanks for verifying that, I couldn't remember what your race weight was.

 

my race weight was 2800lbs and i prob had 210-215 whp and ran a few 1.7's, i just put the 2k2 IM on recently and its a huge increase over what i had.

 

I am going to go run the 1/8th mile near my house and get the launching down pat before I drive 2 hours again to the 1/4 mile track and break something. I will go again in a few more weeks when its even cooler. The car feels night and day different even now that we have cooled down pretty good at night.

 

You have been out of the maxima world too long. We have a guy with a 3.0 and several more with 3.5's cutting 1.7 60 ft times, and my last dyno was 273whp, not 240-250whp. That 1.91 60 ft I cut was a quick slip from around 2500 rpm, so there is definately more left in it.

Now that you live close, when are you going to Steele to run the G35?