rpm not changing
01-20-2011, 05:00 AM
#11
Senior Member
RACING JUNKIE
Join Date: May 2003
Location: Coldwater, MI
Posts: 2,998
Originally Posted by smokinsmallblock
yes 1 have a 7200 chip in it. its a 434 dart pro 1 heads it runs 590's all day, have a 670 645 cam in it. shift it at 6700rpm. 6000 coverter. car weight is 2450 wit a power glide
What high side chip do you run ?
01-20-2011, 05:03 AM
#12
Senior Member
DYNO OPERATOR
Join Date: Apr 2008
Posts: 504
Originally Posted by hammertime
Originally Posted by smokinsmallblock
yes 1 have a 7200 chip in it. its a 434 dart pro 1 heads it runs 590's all day, have a 670 645 cam in it. shift it at 6700rpm. 6000 coverter. car weight is 2450 wit a power glide
If you changed the gear and seen no change, it all leads to the converter. What is your stall that you checked, at the launch, after the shift fallback and if you've checked in the garage what is it ?
How in the heck can a loose or tight converter possibly limit the top rpm?
The speed is diminishing with gear changes and the rpm the same?
Bruce
01-20-2011, 08:00 AM
#13
Junior Member
APPRENTICE
Thread Starter
Join Date: Oct 2007
Location: va
Posts: 19
yes it can go past 6700rpm in first gear. i shift around that area, steve said i need to shift around 7000rpm but it slows up. if i take my trans break chip out and go on the converter it goes to 5900rpm. my shift lite comes on bout half track wit the 3 gears. heres my number mabe i can explain a little better 5404551035
01-20-2011, 06:27 PM
#15
Senior Member
RACING JUNKIE
Join Date: May 2003
Location: Coldwater, MI
Posts: 2,998
Originally Posted by TopspeedLowet
Originally Posted by hammertime
Originally Posted by smokinsmallblock
yes 1 have a 7200 chip in it. its a 434 dart pro 1 heads it runs 590's all day, have a 670 645 cam in it. shift it at 6700rpm. 6000 coverter. car weight is 2450 wit a power glide
If you changed the gear and seen no change, it all leads to the converter. What is your stall that you checked, at the launch, after the shift fallback and if you've checked in the garage what is it ?
How in the heck can a loose or tight converter possibly limit the top rpm?
The speed is diminishing with gear changes and the rpm the same?
Bruce
01-21-2011, 03:15 AM
#16
Senior Member
DYNO OPERATOR
Join Date: Apr 2008
Posts: 504
There is a Wood chuck in the wood pile here
If he were driving thru the converter with a given gear, then his MPH would not have diminished with higher numerical ratios and his rpm would have to increase at the finish line and through out the pass,.......... unless the car was not moving and you were doing a stall test.
I got a feeling that we do not have all the information we need to accurately diagnose this persons car set up problems or problem.
I would suggest that this guy talk this over with Steve Schmidt further and see if something else in the engine combination is relenting or unhappy with the new port job?
Best of luck solving you issue
Bruce
I got a feeling that we do not have all the information we need to accurately diagnose this persons car set up problems or problem.
I would suggest that this guy talk this over with Steve Schmidt further and see if something else in the engine combination is relenting or unhappy with the new port job?
Best of luck solving you issue
Bruce
01-21-2011, 04:36 PM
#19
Senior Member
SENIOR BUILDER
Join Date: Dec 2005
Posts: 117
Originally Posted by smokinsmallblock
tire size is 14 32. ok let me ask yall this question. i ran 5.92 at 6700rpm wit the 514 in the 1/8th, in the 1/4 mile i ran a 9.54 at about 7300rpm. do that add up?
