My car is getting slower
Thread Starter
Burning Brakes
Joined: Aug 2003
Posts: 828
Likes: 1
From: Wichita Ks
My car is getting slower
We had a Street Wars last night and I 
Ok I got the M/t drag radials but no gains.
Start of the year was
12.64 @ 110 and a 1.86 on regular Nitto's
best today was 13.13 @ 107 and a 1.96 on M/T Drags
Mods are
'98 Built A4, Pt2400, 3:73's, Blackwing W/cover, LS6 intake, LongTubes no cat's 3" X and B&B Rt 66's. MSD Wires and M/T drags. To much money for 13's. Vette Doctors e-mail tune.
The
of the whole thing was loseing to a 4 banger Mustang, i ran a 14 and no traction. The 13.13 was when I hooked.
I can't handle this anymore
Ok I got the M/t drag radials but no gains.
Start of the year was
12.64 @ 110 and a 1.86 on regular Nitto's
best today was 13.13 @ 107 and a 1.96 on M/T Drags
Mods are
'98 Built A4, Pt2400, 3:73's, Blackwing W/cover, LS6 intake, LongTubes no cat's 3" X and B&B Rt 66's. MSD Wires and M/T drags. To much money for 13's. Vette Doctors e-mail tune.
The
of the whole thing was loseing to a 4 banger Mustang, i ran a 14 and no traction. The 13.13 was when I hooked.I can't handle this anymore
Burning Brakes
Joined: Jun 2002
Posts: 996
Likes: 0
From: Frisco Texas
Originally Posted by Tlkschep
We had a Street Wars last night and I
Ok I got the M/t drag radials but no gains.
Start of the year was
12.64 @ 110 and a 1.86 on regular Nitto's
best today was 13.13 @ 107 and a 1.96 on M/T Drags
Mods are
'98 Built A4, Pt2400, 3:73's, Blackwing W/cover, LS6 intake, LongTubes no cat's 3" X and B&B Rt 66's. MSD Wires and M/T drags. To much money for 13's. Vette Doctors e-mail tune.
The of the whole thing was loseing to a 4 banger Mustang, i ran a 14 and no traction. The 13.13 was when I hooked.
I can't handle this anymore
Ok I got the M/t drag radials but no gains.
Start of the year was
12.64 @ 110 and a 1.86 on regular Nitto's
best today was 13.13 @ 107 and a 1.96 on M/T Drags
Mods are
'98 Built A4, Pt2400, 3:73's, Blackwing W/cover, LS6 intake, LongTubes no cat's 3" X and B&B Rt 66's. MSD Wires and M/T drags. To much money for 13's. Vette Doctors e-mail tune.
The
of the whole thing was loseing to a 4 banger Mustang, i ran a 14 and no traction. The 13.13 was when I hooked.I can't handle this anymore
Team Owner
Joined: Feb 2000
Posts: 32,545
Likes: 2
From: Lithia FL
Cruise-In II & IV Veteran
CI VI Drag Champ!
You should be geting 1.7 60's or very close to that.
What PSI did you try the tires at?
You mention traction issues but was that your car only or the track in general?
Are you getting a good burnout using a line lock?
What PSI did you try the tires at?
You mention traction issues but was that your car only or the track in general?
Are you getting a good burnout using a line lock?
Thread Starter
Burning Brakes
Joined: Aug 2003
Posts: 828
Likes: 1
From: Wichita Ks
Originally Posted by REDGAR
You should be geting 1.7 60's or very close to that.
What PSI did you try the tires at?
You mention traction issues but was that your car only or the track in general?
Are you getting a good burnout using a line lock?
What PSI did you try the tires at?
You mention traction issues but was that your car only or the track in general?
Are you getting a good burnout using a line lock?
I started at 26psi and ended up at 20psi before the track was to far gone. I was hooking early in the night but it's like I have to learn all over how to launch compared to launching with my old streets tires. My trap speed is something I noticed that didn't seem right, 107 when it used to be 110. I need to get my scanner on it but I think my obd2 port has a problem. When I run the scanner it shuts my car down on a hard launch, doesn't happen when it's not hooked up. oh yea burnout, I don't have a line lock but I roll them up until I get a good smoke off the tires and feather it out to the staging line. I'm going out Wednesday and try some different things at the track, launching, tunes and get some logs I hope.
Thread Starter
Burning Brakes
Joined: Aug 2003
Posts: 828
Likes: 1
From: Wichita Ks
Well I went back to see what the difference in air was and it was a Da of 1560 temp 63 when I ran the 12.64 and 2400 temp 71 with my 13.13. Is that worth that much loss. I was running 12.98-13.01 all through the summer last year and that was before headers, no cats, ls6 intake and mufflers were changed.
Team Owner
Joined: Feb 2000
Posts: 32,545
Likes: 2
From: Lithia FL
Cruise-In II & IV Veteran
CI VI Drag Champ!
There is part of your problem. Mickey Thompson recoomends 11 - 16 PSI on the ET Street radial.
http://mickeythompsontires.com/tech_et_street_tire.html
http://mickeythompsontires.com/tech_et_street_tire.html
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Melting Slicks
Joined: Sep 2003
Posts: 2,911
Likes: 1
From: Augusta GA
St. Jude Donor '05-'06
I have 275 40 17s and I started @ 18 hot and that was too high still. I assume you have the same size and I would start @ 15 psi hot and go down from there. They are a bit loose on the big end of the track. Do a good hard burn out on them on your 1st pass, and hustle to the lights after. I am not an A4 guy, but I know the MT ET St radials made a huge differance for me on my M12. Good luck!!! 
Dave
PS Redgar,
Love that wheels up launch!!!!
Dave
PS Redgar,
Love that wheels up launch!!!!
Thread Starter
Burning Brakes
Joined: Aug 2003
Posts: 828
Likes: 1
From: Wichita Ks
Well I finaly made it back out to the track tonight. Tried everything I could think of and still running 13's. 4 out of 5 runs was 13.05 @ 107 60ft 1.95. I did have one run that came out 12.88 @ 108 same 60ft. When I hook up EFI live it stalls out with 8.5 deg. knock retard midway through 2nd. I'm lost. DA was high at 3800 tonight, track was sticky, no issues their. Why can't I run my mid 12's anymore? Anyone have problems with their NGK plugs going bad, I have had problems in other things so maybe I will try something else. Whats another choice for plugs is their?
Advanced
Joined: Jul 2005
Posts: 74
Likes: 0
maybe your a4 is wearing out? does the car itself feel any different?
how often do you drive the car? If you don't drive it often or baby it most of the time maybe you could use some carbon clean up with GM top engine cleaner or seafoam?
how often do you drive the car? If you don't drive it often or baby it most of the time maybe you could use some carbon clean up with GM top engine cleaner or seafoam?
Thread Starter
Burning Brakes
Joined: Aug 2003
Posts: 828
Likes: 1
From: Wichita Ks
Originally Posted by Dragonsi
maybe your a4 is wearing out? does the car itself feel any different?
how often do you drive the car? If you don't drive it often or baby it most of the time maybe you could use some carbon clean up with GM top engine cleaner or seafoam?
how often do you drive the car? If you don't drive it often or baby it most of the time maybe you could use some carbon clean up with GM top engine cleaner or seafoam?
It doesn't feel like it pulls as hard on the top end as it use to.
