PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Where to start tuning

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Old Jun 5, 2007 | 11:14 AM
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Default Where to start tuning

HPtuners will be here in a day or two and am looking forward to doing the tuning myself. Just wondering where to start. I have LT headers, Catted Y-pipe, lid and GMMG cat back. I looked in the bin repository and didn't see any tunes with my mods. Any suggestions?
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Old Jun 5, 2007 | 11:52 AM
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Start by saving for a WBO2 if you haven't ordered one yet.

For a stock '99, there's not going to be much you can do in the timing department since it's mostly 27~29* already (except around peak torque). The main focus will probably be on getting the AFR dialed in....and if it's an auto, tweaking the trans a little to your liking.

Last edited by SSpdDmon; Jun 5, 2007 at 12:05 PM.
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Old Jun 5, 2007 | 12:11 PM
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Originally Posted by SSpdDmon
Start by saving for a WBO2 if you haven't ordered one yet.

For a stock '99, there's not going to be much you can do in the timing department since it's mostly 27~29* already (except around peak torque). The main focus will probably be on getting the AFR dialed in....and if it's an auto, tweaking the trans a little to your liking.
Yeah I figured I was going to need that and was planning making that my next purchase. Nothing I can do before I get that? Yes it's an auto so I was planning on adjusting that. How much TQ management can I safely remove?
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Old Jun 5, 2007 | 01:03 PM
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Originally Posted by Judge Smales
Yeah I figured I was going to need that and was planning making that my next purchase. Nothing I can do before I get that? Yes it's an auto so I was planning on adjusting that. How much TQ management can I safely remove?
I don't usually like to remove more than 50% Tq. Mgt. as a personal preference. If you're ever a few miles south, we could meet up and I might be able to show you a few things. I am an EFI Live guy though...so it might take a minute to find the right tables. I work out of Warren during the week at the GM Tech Ctr.
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Old Jun 5, 2007 | 01:14 PM
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Originally Posted by SSpdDmon
I don't usually like to remove more than 50% Tq. Mgt. as a personal preference. If you're ever a few miles south, we could meet up and I might be able to show you a few things. I am an EFI Live guy though...so it might take a minute to find the right tables. I work out of Warren during the week at the GM Tech Ctr.
Thanks, I usually end up down at woodward on Saturday nights if the weather is right. Actually planning on heading down this Saturday since they are calling for a nice day. So I can take out 50% with no problem or should I start taking out less and go from there? It definately feels richer down low since I installed the headers and GMMG and was hoping I could help that out.
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Old Jun 5, 2007 | 01:25 PM
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Originally Posted by Judge Smales
Thanks, I usually end up down at woodward on Saturday nights if the weather is right. Actually planning on heading down this Saturday since they are calling for a nice day. So I can take out 50% with no problem or should I start taking out less and go from there? It definately feels richer down low since I installed the headers and GMMG and was hoping I could help that out.
The richer down low issue is what you'll need the WB for.

As for the Tq Mgt, it's there to preserve tranny life. I think of it as a slider bar...on one end you have trans life and the other you have performance. Which do you want more of? I pulled 50% from my A4 when I had it and it was fine while I had it. But, I can't say how long it will last in that form. Depends on too many things...

I'm not always around on the weekends unfortunately. I usually head back up to Lansing for the weekend. But, if you're ever down here during the week, LMK...
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Old Jun 5, 2007 | 02:24 PM
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Originally Posted by SSpdDmon
The richer down low issue is what you'll need the WB for.

As for the Tq Mgt, it's there to preserve tranny life. I think of it as a slider bar...on one end you have trans life and the other you have performance. Which do you want more of? I pulled 50% from my A4 when I had it and it was fine while I had it. But, I can't say how long it will last in that form. Depends on too many things...

I'm not always around on the weekends unfortunately. I usually head back up to Lansing for the weekend. But, if you're ever down here during the week, LMK...
I take it you live up there and work down here? Did you notice a difference when you removed the 50% of TQ managment? I don't usually get down that way during the week, but will definately keep it in mind.
Thanks for answering my questions. Sounds like the WB is pretty much a definate have. Which WB are you using.
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Old Jun 5, 2007 | 02:39 PM
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Originally Posted by Judge Smales
I take it you live up there and work down here? Did you notice a difference when you removed the 50% of TQ managment? I don't usually get down that way during the week, but will definately keep it in mind.
Thanks for answering my questions. Sounds like the WB is pretty much a definate have. Which WB are you using.
Yeah, I've got an apartment down here during the week. But, family/friends are up there.

Pulling Trq Mgt will make the shifts feel more firm/crisp because the PCM isn't pulling as much timing from the motor as it usually would. Therefore, it becomes more of a 'powershift'.

I personally like the LM1. Had an LC1 and moved up due to portability and ease of installing on multiple vehicles. I've also heard good things about the Dynojet setup.
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Old Jun 5, 2007 | 10:31 PM
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Originally Posted by SSpdDmon
Start by saving for a WBO2 if you haven't ordered one yet.

For a stock '99, there's not going to be much you can do in the timing department since it's mostly 27~29* already (except around peak torque). The main focus will probably be on getting the AFR dialed in....and if it's an auto, tweaking the trans a little to your liking.
LOL
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Old Jun 5, 2007 | 10:44 PM
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I removed all the TM on my car, but then again it is a v6 as well.

Start out with tran settings, fan speeds, shift points, and maybe add a couple degrees and watch for KR and such.
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