97gsxIA
10+ Year Contributor
- 418
- 44
- Apr 22, 2011
-
Des Moines,
Iowa
Ok so from my understanding, it is completely normal for a car to have a higher idle while moving in neutral(1300-1400) until coming to a stop (where it returns to normal 900-1000) Whether it be to keep it high for power steering, or whatever.
My curiosity spikes when I notice that the idle returns to normal when I push my clutch in while moving (in neutral) instead of staying up in the 1300-1400 range. (Let me emphasize that it returns to normal... it does NOT bog or go below 900rpm when pressing in clutch)
I'm wondering why exactly this occurs, specifically when my clutch is disengaged.
Assume everything is in working order (at face value).
In this instance, its on my GSX that has a built 6 bolt swap (400 miles on it) new clutch, new trans, new flywheel, new just about everything with ALL clearances including step height in spec, Throttle body and sensors are all dialed in with less than 2,000 miles on them (previously rebuilt). No clutch drag up to 7K rpm test.
Crank end play is in spec, so please save me from rolling my eyes at crank walk comments.
The car runs great, pulls great and has been tuned by me. MAFcomp matches airflow, WBfactor is <3% through out power band. So everything is well within working order, and I can't be more pleased with how the build has turned out. I am just very curious.
Any insight on this?
My curiosity spikes when I notice that the idle returns to normal when I push my clutch in while moving (in neutral) instead of staying up in the 1300-1400 range. (Let me emphasize that it returns to normal... it does NOT bog or go below 900rpm when pressing in clutch)
I'm wondering why exactly this occurs, specifically when my clutch is disengaged.
Assume everything is in working order (at face value).
In this instance, its on my GSX that has a built 6 bolt swap (400 miles on it) new clutch, new trans, new flywheel, new just about everything with ALL clearances including step height in spec, Throttle body and sensors are all dialed in with less than 2,000 miles on them (previously rebuilt). No clutch drag up to 7K rpm test.
Crank end play is in spec, so please save me from rolling my eyes at crank walk comments.
The car runs great, pulls great and has been tuned by me. MAFcomp matches airflow, WBfactor is <3% through out power band. So everything is well within working order, and I can't be more pleased with how the build has turned out. I am just very curious.
Any insight on this?