Some GTech Pro Timer results

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Oct 22, 2004 | 06:14 PM

#11

Chevmann99

Thread Starter

On The Tree

Joined: Aug 2004

Posts: 160

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From: N. Cali

Quote:

Originally Posted by Black Blown 02

No detonation unless I turn timing up to above 18 degrees. With the same pulley and the smaller intercooler It could only handle 16 degrees. I gained 5 tenths and 4 mph with just the intercooler change. The ATI intercooler is extremely undersized!

I thought I was about done tweaking on this thing, you got my gears turning again.

Thanks.......... My bank account hates this place.

So now less than one day after being happy with the current mods I am looking into:

11psi pully, intercooler upgrade, probably more plumbing, and more tuning......

You got a pic of the intercooler??

Oct 22, 2004 | 06:41 PM

#12

Black Blown 02

12 Second Truck Club

Joined: Oct 2002

Posts: 1,677

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From: Salt Lake City, Utah

Quote:

Originally Posted by Chevmann99

I thought I was about done tweaking on this thing, you got my gears turning again.

This thread has some pics.
https://ls1tech.com/forums/showthrea...er+intercooler

Oct 22, 2004 | 07:19 PM

#13

Black02Z71

TECH Apprentice

Joined: Mar 2004

Posts: 361

Likes: 0

From: Ontario, Canada

Quote:

Originally Posted by Chevmann99

I was looking at the G-Tech when it shifted 2-3 to get that number so maybe it is off a little. 5500 seems right, it's set to stock. I may have to send the PCM out one more time because the tranny won't downshift out of overdrive if I am going more than 65mph and floor it. If I do send it back I am going to have the WOT shifts raised too, waiting to get a dyno run and wide band to see if there is anything else that needs tweaking. It's still pulling hard when it shifts now. For my purposes the performance is fine but it would be nice to have all she's got available.

Did you calibrate the rpm on the G-tech?

Oct 22, 2004 | 07:28 PM

#14

Chevmann99

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From: N. Cali

Quote:

Originally Posted by Black02Z71

Did you calibrate the rpm on the G-tech?

Yep, I should have paid better attention to the tach, I just caught one 2-3 shift and the G-tech was showing 5000 when it shifted. The truck should be shifting at whatever the stock values are. I was busy paying attention to everything else, like EGT, Boost and Fuel pressure since the FMU was just removed and replaced w/ injectors, the gears just went in, the tune is brand new and I built a custom intake for the blower. FYI my WOT EGT dropped 200+ Deg. since removing the FMU and going with larger injectors. Has not been above 1200 since the swap, used to regularly hit 1400+ at WOT.

Oct 22, 2004 | 07:46 PM

#15

MacADaYear

TECH Addict

Joined: Apr 2002

Posts: 2,527

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From: Cali

Post some graphs

Oct 22, 2004 | 08:05 PM

#16

Chevmann99

Thread Starter

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Joined: Aug 2004

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From: N. Cali

Quote:

Originally Posted by MacADaYear

Post some graphs

As soon as a figure out how. It didn't come with a cable or any software so I am not sure how to get it to download to the computer and it needs to be plugged into 12V in order to have any power, I guess I should read more about hooking it up to the computer. I am gonna figure out how to do a HP run with it tomorrow, and then compare that to next weeks dyno run.