07 Gt W/mutha Thumprs - Over Revs W/air On -

[chgovfk]

My 07 GT - has mutha thumprs NSR nstalled new - problem is they 'ramp' up (over rev's high ) when the air is on - I've cleaned the throttle body - the tune is a canned tune from Brenspeed - but they won't 'service' these cams anymore - Has anyone else dealt with this issue?- can I tune this out - I've been trying to configure this - but is it something to do with the WOT setting? etc.. any help would be great -

I don't like to fool with the tuner (I'm a novice) so I put up with it and usually drive w/no A/C .....should I get it professional tuned on a dyno -problem is they usually want you to buy a whole new tuner and tune - I just have this one problem -

it's usually pretty clean when taken apart

 

[SpartaPerformance]

Its not a mech problem, when ever you turn AC on in any car the computer kicks idle higher to make up from load of the compressor. Needs to be tuned out.

 

[chgovfk]

ok thanks - I'll look into that - but do you know what is the tuner designation is for that control?

 

[Tomh1962]

How much of a higher rev is it doing?? More details are gonna be needed to get more accurate responses. It will need a tune with all you done anyway... especially the cams... but how high is it "over-revving"?

 

[chgovfk]

thanks Tomh - it has a canned tune - If idle is around 1200 - it jumps up to around 4500 - high sustained rev's (like it's stuck on 4500) - the only way to 'kill' it - is to come to a complete stop - sometimes - I try to double pump the accelerator - and it may 'kick' down - but for the most part it does not - it just jumps up and stays there - I should document it - exact - will have more info tomorrow -

 

[Tomh1962]

ok... yes, that's a lot better info to work with... and I agree with Sparta... a good tune, probably a custom tune would be best, might/should clear that up... option B is the AC eliminator pulley...

 

[chgovfk]

Thanks guys - well I just moved to viva Las Vegas like 4 months ago - had to switch out the off-road H-pipe - plus drive it w/a suspended plate - b/c we switched states and insurance to Nevada - then 'pray' that I drove it enough miles to get it to Pass these God awful emissions here in Vegas - no "lee way boy " - really no way to cheat ( this car is driven 'maybe' 2500 miles a year (only has 23k on it) - at least I was smart enough to get (2) two tunes - one w/CO2's on and the cats on - the other - well the other is all out -(It passed) - I know - I could get a high flow catted H-pipe - but I'm too cheap (They are still like $5/7 Hundo) and I love the sound that the open H offers - anyway - I guess I'll have to find a new tuner with a dyno - there is Shelby America - basically down the street - I'll probably post or research a tuner here in town and just spent the big bucks and get it fixed correctly - anyway thanks again for the help - oh a big no on the A/C eliminator - 110 degree's sometimes here

 

[Tomh1962]

- anyway thanks again for the help - oh a big no on the A/C eliminator - 110 degree's sometimes here

LOL... hehhehee... but two windows open at 100 mph works well...

 

[timjimmy]

In reference to the H pipe, are you running headers?

 

[chgovfk]

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In reference to the H pipe, are you running headers?

BBK Shorties - H-pipe (straight no Cats ) - to welded in Cherry bombers - they are like the 40 Flows - I love the sound