12.6841@114.74/12.7049@117.18

[MANOFSTEEL69]

Damn it to hell I need some drag radials, and a torque converter! If I had that I would need a roll cage and 5 point harness to go along with it...Lol! Gotta be mid to low 11's if I could hook up.
http://i354.photobucket.com/albums/r424/MANOFSTEEL69/DSC00841.jpg
http://i354.photobucket.com/albums/r424/MANOFSTEEL69/DSC00800.jpg

[g8_795]

Now that is impressive. 117 MPH, that is crazy. Yes, your 60's are killing you. Need some rubber. Are you shifting into 4th gear? I assume so. Does the trans seem to stall during the 3->4 shift at WOT for you?
-Robert

[MANOFSTEEL69]

No, I'm not shifting into 4th, not even close to my 6400 rev limit at that speed. In sport mode holding 3rd.

[wreckwriter]

Great runs Jay! That's funny, I thought you had a converter already. Once you add that you may find you'll be in 4th at the traps.

I agree, 11s with converter and DRs.

[GTPprix]

First easy fix, switch to Norwalk Milan sucks I cant even imagine why you'd come up here over Norwalk ;)

[Blackdevil77]

Nice runs! I can imagine how you spin when you launch. You got the power, not just gotta put it to the ground. and like g8 795 said, does your tranny stall when you shift from 3rd to 4th at WOT? Have you ever done it? I heard people's tranny's are stalling there at WOT because of something going on with the tranny.

[MANOFSTEEL69]

First easy fix, switch to Norwalk Milan sucks I cant even imagine why you'd come up here over Norwalk ;)

Mainly because Milan is closer. I know Norwalk is the better track between the 2, I used to Pro Bike drag race and would run Milan on Fri., Norwalk on Sat., and Runway 42 in West Salem, Oh. on Sun.

[MANOFSTEEL69]

Nice runs! I can imagine how you spin when you launch. You got the power, not just gotta put it to the ground. and like g8 795 said, does your tranny stall when you shift from 3rd to 4th at WOT? Have you ever done it? I heard people's tranny's are stalling there at WOT because of something going on with the tranny.

I'm spinning all the way through 1st and 1/2 way through second, lol. I don't shift into 4th. I'm at 5800 RPM trapping 117 in 3rd.

[Blackdevil77]

I'm spinning all the way through 1st and 1/2 way through second, lol. I don't shift into 4th. I'm at 5800 RPM trapping 117 in 3rd.

lol holy shit. I meant besides at the track just in general. Not that it's that easy to floor it and hold it until the car shifts from 3rd to 4th at WOT traveling at Mach 3 but was just a problem many were seeing when getting the power your getting with this car and tranny lol. If anything, next time your at the dyno, have them check to see if that hesitation is there for you from 3rd to 4th at WOT. It's supposed to be bad and for some people, the car won't even shift to 4th at WOT.

[wreckwriter]

lol holy shit. I meant besides at the track just in general. Not that it's that easy to floor it and hold it until the car shifts from 3rd to 4th at WOT traveling at Mach 3 but was just a problem many were seeing when getting the power your getting with this car and tranny lol. If anything, next time your at the dyno, have them check to see if that hesitation is there for you from 3rd to 4th at WOT. It's supposed to be bad and for some people, the car won't even shift to 4th at WOT.

I believe the reported issue was the 2-3 shift, not 3-4.

[MANOFSTEEL69]

We didn't have any issues while we had it out at New Era on the dyno. Mike and I feel I have a stronger tranny then he does for some reason. I haven't had any of the shifting issues some people have had since he did my tune.

[g8_795]

What are the size of your tires? Do you have the stock tires? I am trying to find out how you are getting the trap speeds. It is damn amazing.

[MANOFSTEEL69]

I'm on the stock 19's

[GeorgeInNePa]

What are the size of your tires? Do you have the stock tires? I am trying to find out how you are getting the trap speeds. It is damn amazing.

One of the reasons is wheel speed due to spinning the tires so far down the track.

You can pick up 1 or 2 mph with a lot of spinning.

[wreckwriter]

the other reason is real simple, he's making a shitload of HP.

[MANOFSTEEL69]

YEa, I think my 403 HP might be way on the conservative side, lol.

[g8_795]

Do these tires grow quite a bit at higher speeds? I guess so. With the stock 19's the top speed at 6400 is 113.71 with no tire growth. If the tires grows 0.25 inches, this speed goes up to 114.92. I am just trying to figure out the 117 MPH (0.75 inch diameter growth will do it).

What tire pressure were you running in the rear?

Thanks,
-Robert

[wreckwriter]

Do these tires grow quite a bit at higher speeds? I guess so. With the stock 19's the top speed at 6400 is 113.71 with no tire growth. If the tires grows 0.25 inches, this speed goes up to 114.92. I am just trying to figure out the 117 MPH (0.75 inch diameter growth will do it).

What tire pressure were you running in the rear?

Thanks,
-Robert

Slicks with soft sidewall "grow". Stock tires, minimal if anything I believe.

[MANOFSTEEL69]

I ran 41 in the front, and 39 in the rear.

[Mike P]

Wow! Your car is making some mad power! Nice runs.......

I am going to the track next Sunday 10/12, I've gotta think I'll hit the 12's or I'll be pissed. I would like to get mid 12's, but I'm not sure if that is wishful thinking?

With a 1.8 or 1.9 60' time should make for a good ET.


...

[locrzn#92]

This is hard to figure. Why are some of the cars responding to the VMS tunes better then others. Mike's car ran the best of 13.74 with tune and other mods. Some totally stock rides have run 2 tenths quicker. Mine has run 13.57 with just CAI and a little exhaust work. I know the elevations and temp are critical. Mine only produced 296 rwhp and it was hot as hell the day we did the dyno which had much to do with it. I'm a pretty skilled drag racer having drag raced for 15 years and maybe thats got something to do with it, but, the differences in all these times with mods and without mods is definetly crazy. Mike I hope you do break into the 12's. I just think that all cars don't respond the same and am wondering if the tunes are actually worth the trouble they sometimes cause. I'm just hesitant in getting the tune done, I probably will sooner or later if I can see the real value and consistancy I'm looking for.

[GTPprix]

if I can see the real value and consistancy I'm looking for.

I dont think you are looking real hard ;)

[wreckwriter]

Every car and every driver is a bit different, so is every day and every track. I think if you do some searching you'll find the overwhelming majority are extremely happy with their tunes, particularly VMS customers.

[Mike P]

I'm very happy with the tune. I should be even happier this coming Sunday 10/12 when I go to the track....



...

[MANOFSTEEL69]

Went back to Milan this morning and the best I could 12.7119 @ 117.17 with a 2.1229 60' time. I can't wait for those DR's.:tigger:

[g8_795]

What??? Is that 60' correct? I don't understand.

[MANOFSTEEL69]

My bad, lol. Mistype. I tried my tire pressures at 31 for two runs and 27 for the final. 31 helped knock off .08 from my norm 60' time, but 27 psi didn't help at all.

[Panther 2]

DRs,DRs, DRs , will take the frown off you face, once these cars start making real power tire spin on launch , 1-2 and 2-3 shifts become a bit of a problem. Try to get the dia. and cir. of the DR as close to the stock numbers as possible. I tried a MT 275-40- 17 with poor results. 1st. run was a 13.10 , than the car slowed down a 10th on each of the following runs ie. 13.20, 13.30 ect . I was told by a GM tech that a smaller tire causes problems with the ecm and abs systems . I don't know if this is true , but something caused it to slow down . I put the stock 19s back on ,left from idle and went 12.89 @109.64 Spining on launch, 1-2 , 2-3 shifts . I just ordered MT ET street Rad. 265 - 40 -18 26.6" dia 83" cir almost the same as stock 19'. You can go to MT site and check sizes

[MANOFSTEEL69]

Just looked at my former timeslip. Hell, lowering the pressure actually made my 60' time slower, not faster like I thought. Ugg! Seeing those trap times aggravates the hell out of me. Lol! I believe I'm going with the Toyo DR's, not sure of the rims yet, but going 18's instead of 17's.:prostock:

[R.Penguin]

I believe you are correct.

[Blackdevil77]

Which one's of these bad boys will fit on the stock 18's that come with the GT? Is that what you have MANOFSTEEL or do you have the 19's and want to buy 18's?

http://www.sfxperformance.com/parts/Toyo/18~Inch/page_1.htm

[MANOFSTEEL69]

I have 19's and will be running the 18 rears for the strip, since no one gives the 19's any love in the DR dept.

[jbradsh1]

This is hard to figure. Why are some of the cars responding to the VMS tunes better then others. Mike's car ran the best of 13.74 with tune and other mods. Some totally stock rides have run 2 tenths quicker. Mine has run 13.57 with just CAI and a little exhaust work. I know the elevations and temp are critical. Mine only produced 296 rwhp and it was hot as hell the day we did the dyno which had much to do with it. I'm a pretty skilled drag racer having drag raced for 15 years and maybe thats got something to do with it, but, the differences in all these times with mods and without mods is definetly crazy. Mike I hope you do break into the 12's. I just think that all cars don't respond the same and am wondering if the tunes are actually worth the trouble they sometimes cause. I'm just hesitant in getting the tune done, I probably will sooner or later if I can see the real value and consistancy I'm looking for.

Well, I went back to VMS and had some adjustment made to the tcm tune. What a difference. No hesitation, faster shifts, more grunt off the line. It's perfect, imo! The ecm tune I have never had to have adjusted. It's just smooth, quiet, and fast. Much faster than stock I can tell you. No issues at all and I have over 8,000 miles on the car so far. I even went conservative (which I've gotten some mild flack over) by getting Kooks shorty headers with high flow cats. But, since I run on the track with my tires at 33 lbs. all around and so forth and I still get good times and speed, I'm very happy with the result, very happy indeed!

[Panther 2]

The only person you need to please with the performance of your car , is you ! Lol

[MANOFSTEEL69]

At a loss....DR's did absolutely nothing for my 60' times. Actually ran slower (1/8th due to track conditions). I tried different tire pressures, leaving different etc., nothing better than a 2.08 60'. Dunno?!

[Andy@Livernois]

sounds like you are in need of a converter or a gear sir, since there aren't gears available that makes the choice easy :D ...

[Mike P]

Well, I went back to VMS and had some adjustment made to the tcm tune. What a difference. No hesitation, faster shifts, more grunt off the line. It's perfect, imo! The ecm tune I have never had to have adjusted. It's just smooth, quiet, and fast. Much faster than stock I can tell you. No issues at all and I have over 8,000 miles on the car so far. I even went conservative (which I've gotten some mild flack over) by getting Kooks shorty headers with high flow cats. But, since I run on the track with my tires at 33 lbs. all around and so forth and I still get good times and speed, I'm very happy with the result, very happy indeed!


jbradsh1 : What did you have VMS do to the TCM tune? Turn off torque management on the upshifts? Just curious, because I'm thinking of possibly of making my TCM tune a little more aggressive.



...

[Panther 2]

Jay , did you try leaving from an idle ? All of my 1.9 60' have come since I started leaving from an idle. If you did and that didn't work ,you should really look into a converter with the HP you have.

[GeorgeInNePa]

At a loss....DR's did absolutely nothing for my 60' times. Actually ran slower (1/8th due to track conditions). I tried different tire pressures, leaving different etc., nothing better than a 2.08 60'. Dunno?!

You spun the tires and got a 2.08 or it didn't spin and you got a 2.08?

[jbradsh1]

jbradsh1 : What did you have VMS do to the TCM tune? Turn off torque management on the upshifts? Just curious, because I'm thinking of possibly of making my TCM tune a little more aggressive.



...

Hey Mike; I asked Kirk to first install the latest GM tcm upgrade which is the 8036 I believe (someone correct me as I probably have the number wrong). At any rate, I it's the update after the 08150 which came out a while back. Then I asked him to flash his proprietary tune after doing that. He did and actually took the car out for a while with the laptop next to him and tested it and tested until he got it right. Since I have to drive almost 400 miles from Lexington, Kentucky I really appreciated him being that concientious. For the first time I am really happy with the trans. No hesitation mid corner, no hanging up in third gear, no hesitation off the line, faster shifting now, instant downshifts, torque mngt. is on, on all gear changes but since the shifts are faster it actually seems smoother overall. My times are slightly better at the track and I'm going back to leaving at idle as I think that will now work better (you were right wreckwriter!)

[MANOFSTEEL69]

You spun the tires and got a 2.08 or it didn't spin and you got a 2.08?

I didn't spin anything like I used to, just a slight break going into second. 2.08 was the best 60' time of the 5 passes I did.:hang::poof:

[MANOFSTEEL69]

Here's a pic my wife took. I was amazed at how little contact my front wheels are keeping with the track. Another 50 HP and they might just come up ;)
222

[wreckwriter]

2.039 is my best.

[MANOFSTEEL69]

With your TC Tom?

[wreckwriter]

With your TC Tom?

Nope, pulled that out.

[Panther 2]

Are they Drs on the bach in the photo ? My Drs worked best @ 22lbs, I also had spin on the 1-2 shift, but I think it can be tuned out. Some performance people are telling me that doing burn outs and power brakig these cars are causing problems between ABS and computer communication, These cars should 60' better!

[MANOFSTEEL69]

Yea, We need to get these higher level gear-heads working on a tranny-driveline-rearend combo that will work with our motors

[wreckwriter]

Yea, We need to get these higher level gear-heads working on a tranny-driveline-rearend combo that will work with our motors

Totally agreed. Driveline is our limiting factor.

[MANOFSTEEL69]

Yes, those are my DR's. I'm getting alot of conflicting tire pressure settings for these tires. Any where from 12-22 lbs. I didn't have a good guage the last time I went to be sure of my pressures, but that has been resolved. Yea, when doing the burn-out the first time the car loaded up and stalled and it took 3x's to get it to fire back up. I couldn't warm the tires up w/o bogging the motor.

[Matt TuneTime]

Let me help you guys out here ,

Stock Tire , I have cut a 2.03-1.96 60ft in my stock car with our tune at 26 psi

275/35/19 kumho SPT at 32 psi With Maggie set up below 1.83-1.90 BTW the car went 11.9 @ 118 mph .

DR's 245/40/18 BFG 18 psi I would use this tire on a sub 410 wheel HP car with less then 2800 stall . [ I have gone 1.90 60's with tune and intake 1.76 on a 125 shot ]

275/40/17 MT 15psi 1.80 no spray with 2800 stall , 1.76 best on spray and this tire , With Maggie,Cam,LT's,2800stall . 1.58 60ft and it spun a little.

Next up for me

275/40/17 Hoosier DR . We have a street C5 that has gone 1.37 60ft on these :o

[jbradsh1]

Hey thanks! Anyway to launch quickly and not get the axle hop that you know of?

[Matt TuneTime]

Hey thanks! Anyway to launch quickly and not get the axle hop that you know of? We'll if it's hopping then the wheels are slipping then grabbing try to lower your air pressure and roll into the gas latter. I found that the best runs made are with a hint of hop maybe twice on a street tire .

[99-LS1-SS]

We'll if it's hopping then the wheels are slipping then grabbing try to lower your air pressure and roll into the gas latter. I found that the best runs made are with a hint of hop maybe twice on a street tire .
But isn't that playing Russian roulette with your drive train allowing any wheel hop? In my opinion I would rather run a bad time then replace a half shaft or worse.

[g8_795]

That is a cool pic.