Follow up post....went to drag strip for first time...
Registered User
Joined: Aug 2000
Posts: 179
From: Staten Island, New York, USA
When I initially got my MUSTGOSLOWER programming, mine was shifting at 5700 rpm's on the 2nd to 3rd gear shift and the best of 4 runs was a 13.29@105.5. I threw it in manual gear select 2nd let it shift to 2nd by it self then manually shifted to 3rd (D) at 6200-6300 indicated and the same day went 12.84@108.xx with the same 60'.
Mine shifts from 1st to 2ns at37 mph and 2nd to 3rd at 67 mph. rev limiter set at 6300 rpm. A 5700 rpm shift is killing the potential of your setup,
Fred
------------------
1994 Z28, A4,
BEST 1/4 12.413@109.55
BEST 1/4 MPH 110.49
BEST 60' 1.668
BEST 1/8 7.884@86.35
BEST 1/8 mph 86.77
Race Weight 3600lbs
DYNO: 324 RWHP,310 RWTQ
Mine shifts from 1st to 2ns at37 mph and 2nd to 3rd at 67 mph. rev limiter set at 6300 rpm. A 5700 rpm shift is killing the potential of your setup,
Fred
------------------
1994 Z28, A4,
BEST 1/4 12.413@109.55
BEST 1/4 MPH 110.49
BEST 60' 1.668
BEST 1/8 7.884@86.35
BEST 1/8 mph 86.77
Race Weight 3600lbs
DYNO: 324 RWHP,310 RWTQ
Thread Starter
Registered User
Joined: Jul 2000
Posts: 2,735
From: Buffalo, NY
<font face="Verdana, Arial" size="2">Originally posted by Stephen 87 IROC:
Race weight is not "without driver". The car doesn't go down the track by itself. The total weight of what the engine has to move should be known.
3535 pounds for the car plus your total weight with helmet etc may come to 3700 pounds.
A 3700 pound weight moving 107.97 mph in the 1/4 mile is using 363.47 HP. Looks a bit more than your dyno HP to me but he car's total weight could even be heavier. That's not converting for altitude, just how much HP is required to move that much weight. At higher altitudes the car will be slower because then engine doesn't produce the same amount of HP. At lower altitudes the car will be faster because the engine produces more HP.
</font>
Race weight is not "without driver". The car doesn't go down the track by itself. The total weight of what the engine has to move should be known.
3535 pounds for the car plus your total weight with helmet etc may come to 3700 pounds.
A 3700 pound weight moving 107.97 mph in the 1/4 mile is using 363.47 HP. Looks a bit more than your dyno HP to me but he car's total weight could even be heavier. That's not converting for altitude, just how much HP is required to move that much weight. At higher altitudes the car will be slower because then engine doesn't produce the same amount of HP. At lower altitudes the car will be faster because the engine produces more HP.
</font>
Registered User
Joined: Aug 2000
Posts: 179
From: Staten Island, New York, USA
Wait a minute.... I just took another look at your original post, did you really trap 91.99 in the 1/8th???
If so your car is having serious issues getting into 3rd gear if you only trapped 104 in the 1/4,
Fred
If so your car is having serious issues getting into 3rd gear if you only trapped 104 in the 1/4,
Fred
Registered User
Joined: Apr 2000
Posts: 524
From: Fort Worth , TX
<font face="Verdana, Arial" size="2">Originally posted by Fred94LT1:
What do you mean? I mean I have a non-lockup 2800 converter and it traps pretty good,
Fred</font>
What do you mean? I mean I have a non-lockup 2800 converter and it traps pretty good,
Fred</font>
------------------
Blk 94 Z28,355 c.i.,TRW forged pistons,Gtp Stage II Heads,
GTP 393 Cam,1.6rr,58mm T.B.,Moroso CAI,Hooker LT's,Borla,
2800 Vig,Ed Wright tunning,3.23's,Tranny cooler,Spohn LCA's
Registered User
Joined: Aug 2000
Posts: 179
From: Staten Island, New York, USA
Well I've always heard a non lockup converter will give better mph. I use to have a Daaco 2200 converter and my best mph ever was a 109.89, with a best 60' of 1.780. I swapped to my Art Carr 2800 10" converter dropped my 60' to a 1.66, and firt time at the track after the new converter ran 110+ trap speeds 3 out of 5 runs. Non lockup works for me. The down side for some people is the tranny fluid gets too hot and prematurely burns up the tranny. My cure for that was a TCI tranny pan (Holds 2 quarts extra), and a 24,000 GVW B&M cooler,
Fred
------------------
1994 Z28, A4,
BEST 1/4 12.413@109.55
BEST 1/4 MPH 110.49
BEST 60' 1.668
BEST 1/8 7.884@86.35
BEST 1/8 mph 86.77
Race Weight 3600lbs
DYNO: 324 RWHP,310 RWTQ
Fred
------------------
1994 Z28, A4,
BEST 1/4 12.413@109.55
BEST 1/4 MPH 110.49
BEST 60' 1.668
BEST 1/8 7.884@86.35
BEST 1/8 mph 86.77
Race Weight 3600lbs
DYNO: 324 RWHP,310 RWTQ
Thread Starter
Registered User
Joined: Jul 2000
Posts: 2,735
From: Buffalo, NY
<font face="Verdana, Arial" size="2">Originally posted by Fred94LT1:
When I initially got my MUSTGOSLOWER programming, mine was shifting at 5700 rpm's on the 2nd to 3rd gear shift and the best of 4 runs was a 13.29@105.5. I threw it in manual gear select 2nd let it shift to 2nd by it self then manually shifted to 3rd (D) at 6200-6300 indicated and the same day went 12.84@108.xx with the same 60'.
Mine shifts from 1st to 2ns at37 mph and 2nd to 3rd at 67 mph. rev limiter set at 6300 rpm. A 5700 rpm shift is killing the potential of your setup,
Fred
</font>
When I initially got my MUSTGOSLOWER programming, mine was shifting at 5700 rpm's on the 2nd to 3rd gear shift and the best of 4 runs was a 13.29@105.5. I threw it in manual gear select 2nd let it shift to 2nd by it self then manually shifted to 3rd (D) at 6200-6300 indicated and the same day went 12.84@108.xx with the same 60'.
Mine shifts from 1st to 2ns at37 mph and 2nd to 3rd at 67 mph. rev limiter set at 6300 rpm. A 5700 rpm shift is killing the potential of your setup,
Fred
</font>
1-2 28
2-3 59
3-4 110
Hot shift MPH same as HOT MPH
Normal and HOT shift RPM 5700
Registered User
Joined: Aug 2000
Posts: 179
From: Staten Island, New York, USA
Wow no wonder you aint pulling like you should be. With those shift points you would never fel the car pulling like it should. Good god man shifting from 1st to 2nd at 28 mph... Damn, next time at the track manually shift that sucker at just above 6 grand, and I guarantee a 12 second time slip,
Fred
BTW, mine eases into 4th at 114,
------------------
1994 Z28, A4,
BEST 1/4 12.413@109.55
BEST 1/4 MPH 110.49
BEST 60' 1.668
BEST 1/8 7.884@86.35
BEST 1/8 mph 86.77
Race Weight 3600lbs
DYNO: 324 RWHP,310 RWTQ
[This message has been edited by Fred94LT1 (edited July 27, 2002).]
Fred
BTW, mine eases into 4th at 114,
------------------
1994 Z28, A4,
BEST 1/4 12.413@109.55
BEST 1/4 MPH 110.49
BEST 60' 1.668
BEST 1/8 7.884@86.35
BEST 1/8 mph 86.77
Race Weight 3600lbs
DYNO: 324 RWHP,310 RWTQ
[This message has been edited by Fred94LT1 (edited July 27, 2002).]
Thread Starter
Registered User
Joined: Jul 2000
Posts: 2,735
From: Buffalo, NY
Great! Ill have to try that. Thanks a ton for your help fred 
Do you suggest the same shift MPH as yours?
------------------
96 black Z28 A4
GTP heads, GTP cam, bolt ons...
Mattucci Motorsports WNYFA FLFB
So far...12.7@108...need more practice...
The Z
Do you suggest the same shift MPH as yours?
------------------
96 black Z28 A4
GTP heads, GTP cam, bolt ons...
Mattucci Motorsports WNYFA FLFB
So far...12.7@108...need more practice...
The Z
Registered User
Joined: Aug 2000
Posts: 179
From: Staten Island, New York, USA
It wouldn't hurt to try them. You can always adjust them afterwards. If they work on my setup, I can only assume they will work on yours. Did you set your shift points or did you order a computer from someone?
Fred
Actually with 3.42 gears, I think I might set it up to shift @39 from 1-2 and perhaps @69 from 2-3. You will have to do some trial and error to dial it in. I have 3.73 gears.
[This message has been edited by Fred94LT1 (edited July 28, 2002).]
[This message has been edited by Fred94LT1 (edited July 28, 2002).]
Fred
Actually with 3.42 gears, I think I might set it up to shift @39 from 1-2 and perhaps @69 from 2-3. You will have to do some trial and error to dial it in. I have 3.73 gears.
[This message has been edited by Fred94LT1 (edited July 28, 2002).]
[This message has been edited by Fred94LT1 (edited July 28, 2002).]
Registered User
Joined: Apr 2000
Posts: 524
From: Fort Worth , TX
http://web.camaross.com/bb/Forum8/HTML/005177.html
http://web.camaross.com/bb/Forum8/HTML/005085.html
Here is were I read about the lock up switch, I have never tried it myself
[This message has been edited by blksunshine (edited August 02, 2002).]
http://web.camaross.com/bb/Forum8/HTML/005085.html
Here is were I read about the lock up switch, I have never tried it myself
[This message has been edited by blksunshine (edited August 02, 2002).]
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