still chasing the cutout in boost at 5k
06-02-2012, 12:20 PM
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Staging Lane
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still chasing the cutout in boost at 5k
hey guys the truck is with the new tuner now. he is fixing my old tuners screw ups in the tune.. so far with the info im not too happy with the previous tuner. the truck was previously tuned on a dyno at sho-mespeed in nixa, MO.
my new tuner is saying to him the cutout feels like valve float, with that being said i have tried to get my dyno graphs from the old tuner to see if the power was falling off.. no luck.
old tuner had my truck only shifting at 5200???? i have a isky triple 12 cam with kb 72mm FMIC kit.
on with the reason for valve float maybe.. i am using TSP single behivee springs with 130lbs seat pressure.. dont flame for me using single springs with boost.. this was my first experience with F/I. could this be leaning more towards valve float? the old tuner said he got a lean spike to 12.4 up top in boost. any help would be great!! im getting desperate, i wanna see what everyones opions are before i buy new springs and change them!
some old tuner info on my previous tune:
power enrich vs throttle postion table was just set to 90% instead of having a curve up from 0%
dynamic airflow table was too high.
power enrich torque enable was set too 100%.
my new tuner is saying to him the cutout feels like valve float, with that being said i have tried to get my dyno graphs from the old tuner to see if the power was falling off.. no luck.
old tuner had my truck only shifting at 5200???? i have a isky triple 12 cam with kb 72mm FMIC kit.
on with the reason for valve float maybe.. i am using TSP single behivee springs with 130lbs seat pressure.. dont flame for me using single springs with boost.. this was my first experience with F/I. could this be leaning more towards valve float? the old tuner said he got a lean spike to 12.4 up top in boost. any help would be great!! im getting desperate, i wanna see what everyones opions are before i buy new springs and change them!
some old tuner info on my previous tune:
power enrich vs throttle postion table was just set to 90% instead of having a curve up from 0%
dynamic airflow table was too high.
power enrich torque enable was set too 100%.
06-02-2012, 12:25 PM
#2
How do I change this text
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Post your tune. I had no problem with comp 918 and 15 pounds back in the day...
Whats the lift on the cam ramp rate. duration doesn't really effect valve float.
Whats the lift on the cam ramp rate. duration doesn't really effect valve float.
06-02-2012, 12:39 PM
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Staging Lane
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but the lift on the cam is .561 lift. ill have the dyno graphs here shortly.
but i guess the graphs were a little choppy then it wud just fall.. thats just from what my previous tuner said. but ill know foresure when i get the dyno graphs emailed to me.
06-02-2012, 12:54 PM
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I would like to see the tune also to help you, with that cam lift and duration I imagine your ramp rate isn't bad so a single beehive should be ok. SHOULD. Personally from what I have seen I don't trust single beehives but without seeing your tune all I can do is speculate.
06-02-2012, 12:58 PM
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I would like to see the tune also to help you, with that cam lift and duration I imagine your ramp rate isn't bad so a single beehive should be ok. SHOULD. Personally from what I have seen I don't trust single beehives but without seeing your tune all I can do is speculate.
i will have the tunes here shortly they are being emailed to me, so i will post them up. my old tuner used HPtuners. and the guy tuning it now is using ECM pro? ive never heard of it.. but i will post them up to you guys so i can get good advice! haha