What convertor slippage are you seeing at the track? - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 7 Old 08-20-2008, 12:42 PM Thread Starter
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What convertor slippage are you seeing at the track?

I hope to go to the track again this Friday night and I have a set of 26" ET streets and a set of 28" slicks. I was thinking of trying my 26's but it looks like I run out of motor is I have say 10% slip in the convertor.
If you could give me your HP, gear, along with tire size that would be cool also. May as well throw in the ET and MPH.
Thanks.
Looks like I'm going to have to run the 28's??


88 LX, 69 410W , AFR ??/70mm T.B., FTI cam, 3.55's, BBK 1 3/4" L.T, Edel 351W Victor intake, ???mm maf, 60 lbs. injectors,MSD, chipped Vortech T trim making 16 psi, MAFtuner, PA AOD - Lentech VB-5000 non-lockup, Mr. Freeze.
Old best 1/4-11.056 @ 123.62 mph Spinning real bad! Old setup
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post #2 of 7 Old 08-20-2008, 01:46 PM
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Give me a good calculator, but here's what I see
131.2 mph 1/4 mile
6300 rpms
3.73 gear with 28x10.5 ET Drags on 8" wheels

This calculator: http://www.maverick9teen71.com/forum...3922a2afb7ad02

Says 6.75%


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post #3 of 7 Old 08-20-2008, 03:36 PM
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I shift 1st to 2nd at 6k and 2nd to 3rd at 6k, cross the line at 6400.

I fugure I have about 5% slip

3.55's 28" tire

9.59 @ 142 3230lbs

For $375.00 PTC built me a great converter so far

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post #4 of 7 Old 08-20-2008, 04:32 PM Thread Starter
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Quote:
Originally Posted by White90GT View Post
Give me a good calculator, but here's what I see
131.2 mph 1/4 mile
6300 rpms
3.73 gear with 28x10.5 ET Drags on 8" wheels

This calculator: http://www.maverick9teen71.com/forum...3922a2afb7ad02

Says 6.75%
The one I'm using says 7.3%

http://www.hotrodpitstop.com/tools.html#4

88 LX, 69 410W , AFR ??/70mm T.B., FTI cam, 3.55's, BBK 1 3/4" L.T, Edel 351W Victor intake, ???mm maf, 60 lbs. injectors,MSD, chipped Vortech T trim making 16 psi, MAFtuner, PA AOD - Lentech VB-5000 non-lockup, Mr. Freeze.
Old best 1/4-11.056 @ 123.62 mph Spinning real bad! Old setup
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post #5 of 7 Old 08-20-2008, 04:34 PM Thread Starter
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Quote:
Originally Posted by mrtbolt64 View Post
I shift 1st to 2nd at 6k and 2nd to 3rd at 6k, cross the line at 6400.

I fugure I have about 5% slip

3.55's 28" tire

9.59 @ 142 3230lbs

For $375.00 PTC built me a great converter so far
One I'm using says 5.8%

Interesting, I was figuring 10 % for mine but maybe its better then that.

88 LX, 69 410W , AFR ??/70mm T.B., FTI cam, 3.55's, BBK 1 3/4" L.T, Edel 351W Victor intake, ???mm maf, 60 lbs. injectors,MSD, chipped Vortech T trim making 16 psi, MAFtuner, PA AOD - Lentech VB-5000 non-lockup, Mr. Freeze.
Old best 1/4-11.056 @ 123.62 mph Spinning real bad! Old setup
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post #6 of 7 Old 08-21-2008, 01:03 AM
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Mine says 2.7% convertor slippage.

7400 trap RPM 28" tire 4.88 gear.

X275 build in progress follow on Mustang Junkies.net

http://www.mustangjunkies.net/f9/project-dirty-red-444
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post #7 of 7 Old 08-21-2008, 08:09 AM Thread Starter
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Quote:
Originally Posted by Thriller8 View Post
Mine says 2.7% convertor slippage.

7400 trap RPM 28" tire 4.88 gear.
what MPH?

2.7, impressive, what is the stall speed?

88 LX, 69 410W , AFR ??/70mm T.B., FTI cam, 3.55's, BBK 1 3/4" L.T, Edel 351W Victor intake, ???mm maf, 60 lbs. injectors,MSD, chipped Vortech T trim making 16 psi, MAFtuner, PA AOD - Lentech VB-5000 non-lockup, Mr. Freeze.
Old best 1/4-11.056 @ 123.62 mph Spinning real bad! Old setup
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