what could be causing my problem? (dyno graph included) traps from 117 to 110
11-27-2007, 06:05 PM
#1
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what could be causing my problem? (dyno graph included) traps from 117 to 110 When i first got my car it ran 11:7's at 115 in 100* (4400 da)weather. now it runs 12.0's at 110 in 70* weather. (around 1000 DA)
over the last year or so the car as been getting slower and slower.
i noticed when shifting into 2nd and more pronounced shifting into third it seems like its hitting a rev limiter at 6100 before shifting at 6300.
i have a video on but its only on face book.
the tranny was just rebuilt and it did the same thing before and after. all my fluid levels are full.
The car was just tune as ls1speed.
I have a dyno graph but the smoothness was set to 5. which makes it very hard to tell if I' getting valve float. I attached the dyno graph anyways.
the motor was also rebuilt about 5000 miles ago. and it ran the same numbers before and after the rebuild.
over the last year or so the car as been getting slower and slower.
i noticed when shifting into 2nd and more pronounced shifting into third it seems like its hitting a rev limiter at 6100 before shifting at 6300.
i have a video on but its only on face book.
the tranny was just rebuilt and it did the same thing before and after. all my fluid levels are full.
The car was just tune as ls1speed.
I have a dyno graph but the smoothness was set to 5. which makes it very hard to tell if I' getting valve float. I attached the dyno graph anyways.
the motor was also rebuilt about 5000 miles ago. and it ran the same numbers before and after the rebuild.
11-29-2007, 01:49 PM
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When i first got my car it ran 11:7's at 115 in 100* (4400 da)weather. now it runs 12.0's at 110 in 70* weather. (around 1000 DA)
over the last year or so the car as been getting slower and slower.
i noticed when shifting into 2nd and more pronounced shifting into third it seems like its hitting a rev limiter at 6100 before shifting at 6300.
i have a video on but its only on face book.
the tranny was just rebuilt and it did the same thing before and after. all my fluid levels are full.
The car was just tune as ls1speed.
I have a dyno graph but the smoothness was set to 5. which makes it very hard to tell if I' getting valve float. I attached the dyno graph anyways.
the motor was also rebuilt about 5000 miles ago. and it ran the same numbers before and after the rebuild.
over the last year or so the car as been getting slower and slower.
i noticed when shifting into 2nd and more pronounced shifting into third it seems like its hitting a rev limiter at 6100 before shifting at 6300.
i have a video on but its only on face book.
the tranny was just rebuilt and it did the same thing before and after. all my fluid levels are full.
The car was just tune as ls1speed.
I have a dyno graph but the smoothness was set to 5. which makes it very hard to tell if I' getting valve float. I attached the dyno graph anyways.
the motor was also rebuilt about 5000 miles ago. and it ran the same numbers before and after the rebuild.
seems like a tranny tune issue.. did you use the same tranny builder? did they mess with the settings? RPM the comany that built my tranny said to leave the stock settings other than shift points, if the tuner doesnt know what they are doing it can ruin your tranny and cause major problem even if its brand new. trust me ive been through alot with this. maybe the shift points need to be changed.
oh and did you have a full tank of gas when oyu ran? maybe who were runing empty before and now your heavier, just a thought..
11-29-2007, 09:20 PM
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i brought it to some guys on this site today (who really know their stuff) and they came to the conclusion that the tuner (speed inc) didn't adjust my tranny settings right.
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11-30-2007, 12:42 AM
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i love being right lol. but seriously good thing you found that out sooner then later cause a bad tune can cause your pocketbook nightmares, when it comes to trannys. 