Wierd glitch at the dragstrip, could be HPT related???
11-08-2009, 04:02 AM
#1
Wierd glitch at the dragstrip, could be HPT related??? This has happened to me twice now on different nights. I use the box to do stand alone logging.
Right before the 2/3 shift the motor acts like it hits the rev limiter and the tranny wont shift. However the rpms are nowwhere near the rev limit. It almost seems as if the ignition just shuts off. As soon as I let off the throttle everything goes back to normal. I can get back in the throttle and its like nothing ever happened. This has happened twice with 2 different tunes so I don't think its related to a specific tune. Also, I think it might be HPT related cause the err light on the box blinks till I clear it. Commanded shift rpm is 6900, rev limit is set to 7500, log stops recording at 6600.
Does anyone know what this could be???
Right before the 2/3 shift the motor acts like it hits the rev limiter and the tranny wont shift. However the rpms are nowwhere near the rev limit. It almost seems as if the ignition just shuts off. As soon as I let off the throttle everything goes back to normal. I can get back in the throttle and its like nothing ever happened. This has happened twice with 2 different tunes so I don't think its related to a specific tune. Also, I think it might be HPT related cause the err light on the box blinks till I clear it. Commanded shift rpm is 6900, rev limit is set to 7500, log stops recording at 6600.
Does anyone know what this could be???
11-08-2009, 08:45 PM
#2
I have had troubles with two vehicles, one being a long travel buggy while logging. They would shut down or go into reduced power mode while logging. The buggy would be fine for 3/4 of a lap around silver lake and then go crazy. I never got an answer though???
11-12-2009, 05:12 AM
#3
Launching!
Join Date: Jul 2003
Location: Baytown TX
Posts: 210
Likes: 0
Received 0 Likes
on
0 Posts
Is there any way you can post your tune or email it to me.. that is a good place to start... it could be something very small that your missing if it is the tune, and helps to have another set of eyes. If you want and are will to have someone look at your tune..
Let me know
Carl Spence
ATEURZO6@yahoo.com
(832)-216-1143
SFEngineering
Let me know
Carl Spence
ATEURZO6@yahoo.com
(832)-216-1143
SFEngineering
This has happened to me twice now on different nights. I use the box to do stand alone logging.
Right before the 2/3 shift the motor acts like it hits the rev limiter and the tranny wont shift. However the rpms are nowwhere near the rev limit. It almost seems as if the ignition just shuts off. As soon as I let off the throttle everything goes back to normal. I can get back in the throttle and its like nothing ever happened. This has happened twice with 2 different tunes so I don't think its related to a specific tune. Also, I think it might be HPT related cause the err light on the box blinks till I clear it. Commanded shift rpm is 6900, rev limit is set to 7500, log stops recording at 6600.
Does anyone know what this could be???
Right before the 2/3 shift the motor acts like it hits the rev limiter and the tranny wont shift. However the rpms are nowwhere near the rev limit. It almost seems as if the ignition just shuts off. As soon as I let off the throttle everything goes back to normal. I can get back in the throttle and its like nothing ever happened. This has happened twice with 2 different tunes so I don't think its related to a specific tune. Also, I think it might be HPT related cause the err light on the box blinks till I clear it. Commanded shift rpm is 6900, rev limit is set to 7500, log stops recording at 6600.
Does anyone know what this could be???
11-13-2009, 01:17 AM
#6
I'll post up a tune and log tomorrow. As far as changing gears, yes I have, I went from 3.73 to 4.56. But it did it with the 3.73 as well. When I changed to 4.56 I let the software convert all mph shift points, so nothing should really have changed.
