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Old 02-08-2007, 09:31 PM
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Originally Posted by HotWhipT/A
Nice #'s Jonas! Sucks to fix or do one thing and something else breaks. I know how that goes!

Nah Eric i am all good now. Just need some more tunning work...

you should hear our exhaust with a cam
Old 02-08-2007, 09:37 PM
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Originally Posted by TORCHD 02 TA

you should hear our exhaust with a cam

lets hear it man, come on.. Glad to see your research turned out good for ya, nice job, Jonas.
Old 02-08-2007, 09:46 PM
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Originally Posted by STRETCH'S T/A
lets hear it man, come on.. Glad to see your research turned out good for ya, nice job, Jonas.

Thanks a lot Jeff.. I will get a clip this weekend.. And research did pay off
Old 02-09-2007, 06:31 AM
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Originally Posted by TORCHD 02 TA
is set at 1000. you can hear the cam lope, but i think that lowering the idle you will hear it lope more?? i would like the idle around 850-900 RPMs???? (
Yeah the lower you go, the more lope and chop you will hear. If you can get it to idle nicely at 900 RPMS's that would probably be perfect. Good idle tuning will help out greatly to keep a healthy idle without surging.
Old 02-09-2007, 07:38 AM
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Brother you can buy batteries everyday... If it is the Alt... it will drain em in NO time!

Get you a good Alt... along with that Optima... you'll read 13-14 volts easily..

good luck, nice numbers.. BTW... M6/A4?
Old 02-09-2007, 07:49 AM
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Originally Posted by PewterY2KZ28
Brother you can buy batteries everyday... If it is the Alt... it will drain em in NO time!

Get you a good Alt... along with that Optima... you'll read 13-14 volts easily..

good luck, nice numbers.. BTW... M6/A4?
And make sure the exciter wire on the top of the alternator isnt ripped out of the connector, if it is it wont charge for ****.
Old 02-09-2007, 01:08 PM
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Originally Posted by brad8266
Yeah the lower you go, the more lope and chop you will hear. If you can get it to idle nicely at 900 RPMS's that would probably be perfect. Good idle tuning will help out greatly to keep a healthy idle without surging.

i am dropping the car back off on monday. hey Brad why is a 110 harder to tune?

I am going to tell him to set it at 850-900
Old 02-09-2007, 01:09 PM
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Originally Posted by PewterY2KZ28
Brother you can buy batteries everyday... If it is the Alt... it will drain em in NO time!

Get you a good Alt... along with that Optima... you'll read 13-14 volts easily..

good luck, nice numbers.. BTW... M6/A4?
Car is an M6

bought the optima. started to no problem. Drove the car this morning not a damn problem, never saw the car start up so fast.. Alt is fine
Old 02-09-2007, 01:11 PM
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Originally Posted by TORCHD 02 TA
i am dropping the car back off on monday. hey Brad why is a 110 harder to tune?

I am going to tell him to set it at 850-900
Its mainly the overlap amount that is what causes idle issues, not the LSa alone. The more overlap you have the harder it is to get a perfect idle.
Old 02-09-2007, 01:19 PM
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Originally Posted by brad8266
Its mainly the overlap amount that is what causes idle issues, not the LSa alone. The more overlap you have the harder it is to get a perfect idle.

ahh i see. yea i want that idle lower. The decater rate the guy was playing with. That is messed up a bit. when you take the car outta car caosting it revs to 2k and sits there till you put it back in gear or come to a stop. he said that it might be bc my battery was dead when tuinnging f he changed one table another table was affected..

But agian yea i want to lower the idle
Old 02-14-2007, 08:40 AM
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Glad you went with the 110LSA +4 cam. See, you can actually get solid advice on this board! Congrats on the big power gains!
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Old 02-14-2007, 08:56 AM
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Originally Posted by Patrick G
Glad you went with the 110LSA +4 cam. See, you can actually get solid advice on this board! Congrats on the big power gains!

Yep thanks Patrick for the advice...

The only problems that i am having is that at 1400 - 1600 RPMs it bucks

and 4th at 2000 and 5th at 2000 RPMs the car hesitates for a second when you give it 1/2 - 3/4 throttle...

And the idle is set at 950. i wish that it would lope a bit more. The tuner tried to lower the idle but cold/hot starts were rough..

Got any ideas?? Thanks again
Old 02-14-2007, 09:10 AM
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Originally Posted by TORCHD 02 TA
Yep thanks Patrick for the advice...

The only problems that i am having is that at 1400 - 1600 RPMs it bucks

and 4th at 2000 and 5th at 2000 RPMs the car hesitates for a second when you give it 1/2 - 3/4 throttle...

And the idle is set at 950. i wish that it would lope a bit more. The tuner tried to lower the idle but cold/hot starts were rough..

Got any ideas?? Thanks again
Did your tuner mess with timing? If so what kind of adjustments did he do?
Old 02-14-2007, 09:11 AM
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The cam you're running is actually not that big. The problems you're experiencing are totally tune related. First thing you have to do is set your base idle timing right (probably 22 degrees). Then, set your idle speed to 850rpm. Next, see to it that your IAC counts are between 30-50 at warm idle with ac off. After that, set your base running airflow to where your short term idle trims are closer to 0. Most likely, you'll need to reduce airflow. Once your airflow is set, you can begin VE tuning. I'm pretty sure your A/F ratio is all over the place at those lower revs, but 80% of the bucking and surging problems are related to running airflow being off. Get the airflow right, then to a good VE tune, rescale your MAF (if you're using one) and you should be a lot closer. FWIW, you can make a T-Rex have good street manners with the right tune, but without it, it's a MF to daily drive.
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2018 Cadillac Escalade 6.2L A10 Pat G tuned.
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Old 02-14-2007, 09:12 AM
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Originally Posted by Patrick G
The cam you're running is actually not that big. The problems you're experiencing are totally tune related. First thing you have to do is set your base idle timing right (probably 22 degrees). Then, set your idle speed to 850rpm. Next, see to it that your IAC counts are between 30-50 at warm idle with ac off. After that, set your base running airflow to where your short term idle trims are closer to 0. Most likely, you'll need to reduce airflow. Once your airflow is set, you can begin VE tuning. I'm pretty sure your A/F ratio is all over the place at those lower revs, but 80% of the bucking and surging problems are related to running airflow being off. Get the airflow right, then to a good VE tune, rescale your MAF (if you're using one) and you should be a lot closer. FWIW, you can make a T-Rex have good street manners with the right tune, but without it, it's a MF to daily drive.
Old 02-14-2007, 09:19 AM
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Originally Posted by brad8266
Did your tuner mess with timing? If so what kind of adjustments did he do?

i knew that he took some timing out.. jsut dont know how much
Old 02-14-2007, 09:20 AM
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Originally Posted by Patrick G
The cam you're running is actually not that big. The problems you're experiencing are totally tune related. First thing you have to do is set your base idle timing right (probably 22 degrees). Then, set your idle speed to 850rpm. Next, see to it that your IAC counts are between 30-50 at warm idle with ac off. After that, set your base running airflow to where your short term idle trims are closer to 0. Most likely, you'll need to reduce airflow. Once your airflow is set, you can begin VE tuning. I'm pretty sure your A/F ratio is all over the place at those lower revs, but 80% of the bucking and surging problems are related to running airflow being off. Get the airflow right, then to a good VE tune, rescale your MAF (if you're using one) and you should be a lot closer. FWIW, you can make a T-Rex have good street manners with the right tune, but without it, it's a MF to daily drive.
damn that is some good advice.. i need to tell my tuner this...

When you say the problems that i am experiencing, the bucking and hesitation.. Those are tune related???? Man this sux.. The car has already been out there 2 times... what other advice do you have more for that i can tell the tuner??????

This is fvcking annoying....

Last edited by TORCHD 02 TA; 02-14-2007 at 09:40 AM.
Old 02-14-2007, 09:59 AM
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Most tuners can't stay in business spending the time to do a proper drivability tune. It takes hours of logging to do it right. But the majority of your problems are definitely tune related and fixable. Lots of great advice in the PCM section of this board.
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2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
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Old 02-14-2007, 10:15 AM
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Originally Posted by Patrick G
Most tuners can't stay in business spending the time to do a proper drivability tune. It takes hours of logging to do it right. But the majority of your problems are definitely tune related and fixable. Lots of great advice in the PCM section of this board.

Ok... I will have to talk to my tuner again see what he says.. i do not want to stick with a poor tune if it can be done right....

If i have any other questions i will PM you.... I hope that they can be fixed and that the tuner will cooperate with me......

Thanks again Patrick!!!




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