L98 to lt1 performance tune
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L98 to lt1 performance tune
Ok, I have been working on this for some time now but I finally got it working. I converted my engine to a lt1 setup. It is running, the only thing is at idle it is burning very rich. I need a tune as I also installed a hot cam. Question is, where is best place to do a mail order type tune?
Thanks
Thanks
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From: Glenbeulah Wi
Ok, I have been working on this for some time now but I finally got it working. I converted my engine to a lt1 setup. It is running, the only thing is at idle it is burning very rich. I need a tune as I also installed a hot cam. Question is, where is best place to do a mail order type tune?
Thanks
Thanks
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PCMforless, Ed Wright
You would be better off running a wideband O2 and getting the WOT tune on a dyno, that part is fairly quick. Its the part-throttle tuning that will take more work so you can drive it.
If you plan to send it off to do it all, give them all information on the engine and go ahead and get DataMaster for your laptop so you can record data and send back to them to finely tune the engine.
You would be better off running a wideband O2 and getting the WOT tune on a dyno, that part is fairly quick. Its the part-throttle tuning that will take more work so you can drive it.
If you plan to send it off to do it all, give them all information on the engine and go ahead and get DataMaster for your laptop so you can record data and send back to them to finely tune the engine.
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PCMforless, Ed Wright
You would be better off running a wideband O2 and getting the WOT tune on a dyno, that part is fairly quick. Its the part-throttle tuning that will take more work so you can drive it.
If you plan to send it off to do it all, give them all information on the engine and go ahead and get DataMaster for your laptop so you can record data and send back to them to finely tune the engine.
You would be better off running a wideband O2 and getting the WOT tune on a dyno, that part is fairly quick. Its the part-throttle tuning that will take more work so you can drive it.
If you plan to send it off to do it all, give them all information on the engine and go ahead and get DataMaster for your laptop so you can record data and send back to them to finely tune the engine.
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From: Overland Park Kansas
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..... especially from a 2004 vendor? Really? PCM4Less has been the "go-to", most longterm "visible" mail-order tune vendor on this site. Been around for more than 10 years. I would choose them over TPIS (based on the level of complaints). Yes, not everyone is happy/successful relying on remote tuning service. Wongs is good too.
Moates sells the tuning equipment that you could use to "piggyback/replace" the stock factory chip. Learning how to burn, replace, install a chip (ECM under right side of dash) would benefit you. For example, I'd be inclined to look at a factory BIN for an LT1 car and compare it to the L98 setup.
The longtube intake has very different airflow characteristics than an LT1 intake -- which will account for as much difference as your performance cam. It's good advice to consider a wideband.
The Thirdgen website has waaay better primers, organization, and information on tuning basics. In short, they have a dedication section for tuning. That's another place you should consider as a starting point for 80's GM tuning guidance.
What year is your car?
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..... especially from a 2004 vendor? Really?PCM4Less has been the "go-to", most longterm "visible" mail-order tune vendor on this site. Been around for more than 10 years. I would choose them over TPIS (based on the level of complaints). Yes, not everyone is happy/successful relying on remote tuning service. Wongs is good too.
Moates sells the tuning equipment that you could use to "piggyback/replace" the stock factory chip. Learning how to burn, replace, install a chip (ECM under right side of dash) would benefit you. For example, I'd be inclined to look at a factory BIN for an LT1 car and compare it to the L98 setup.
The longtube intake has very different airflow characteristics than an LT1 intake -- which will account for as much difference as your performance cam. It's good advice to consider a wideband.
The Thirdgen website has waaay better primers, organization, and information on tuning basics. In short, they have a dedication section for tuning. That's another place you should consider as a starting point for 80's GM tuning guidance.
What year is your car?
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Joined: May 2006
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From: Salem NH
Ok, I have been working on this for some time now but I finally got it working. I converted my engine to a lt1 setup. It is running, the only thing is at idle it is burning very rich. I need a tune as I also installed a hot cam. Question is, where is best place to do a mail order type tune?
Thanks
Thanks
-- Joe
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From: Salem NH
..... especially from a 2004 vendor? Really? PCM4Less has been the "go-to", most longterm "visible" mail-order tune vendor on this site. Been around for more than 10 years. I would choose them over TPIS (based on the level of complaints). Yes, not everyone is happy/successful relying on remote tuning service. Wongs is good too.
Moates sells the tuning equipment that you could use to "piggyback/replace" the stock factory chip. Learning how to burn, replace, install a chip (ECM under right side of dash) would benefit you. For example, I'd be inclined to look at a factory BIN for an LT1 car and compare it to the L98 setup.
The longtube intake has very different airflow characteristics than an LT1 intake -- which will account for as much difference as your performance cam. It's good advice to consider a wideband.
The Thirdgen website has waaay better primers, organization, and information on tuning basics. In short, they have a dedication section for tuning. That's another place you should consider as a starting point for 80's GM tuning guidance.
What year is your car?
Off the top of my head, he's going to need to adjust his AE vs tps settings, some minor changes to his MAF tables.
I'd probably put ARAP on it ($6E) and start from there. That was the 'hot' 1989 L98 tune.
-- Joe
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From: Glenbeulah Wi
There is almost nothing in a LT1 bin that would translate over to $32B on his 86.
Off the top of my head, he's going to need to adjust his AE vs tps settings, some minor changes to his MAF tables.
I'd probably put ARAP on it ($6E) and start from there. That was the 'hot' 1989 L98 tune.
-- Joe
Off the top of my head, he's going to need to adjust his AE vs tps settings, some minor changes to his MAF tables.
I'd probably put ARAP on it ($6E) and start from there. That was the 'hot' 1989 L98 tune.
-- Joe
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Tuning Options
> You can try me: greg @ BlowerWorks.net
> For the most part (whether L98 & LTx) I want you to buy the Moates Ostrich and the datalogging cable. I prefer the you log and we edit so we get it right and you learn how to do on your own. A one shot tune we can do but is rough-certainly a good start - particularly if changing out injectors. No matter we can discuss. What I want to stress here is the enormous capability of the GM ECM's whether L98 or LTx. In most cases more powerful than most aftermarket once given the incredible software available to us today from TunerCat & TunerPro !!!
> If you own a L98 I might try to sell you a new slot style MAF sensor ... have 3 to choose from... all the way up to 1000 gm/sec i.e., well over 600 RWHP. Absolutely no reason to go S/D over MAF once you try a new slot style MAF !!! MAF much more forgiving !
> If an LTx I have done many tunes but I hope you'll see the wisdom of the "back & forth" over the one shot mail order !!!!!!!
So call me to discuss your options !!!
> For the most part (whether L98 & LTx) I want you to buy the Moates Ostrich and the datalogging cable. I prefer the you log and we edit so we get it right and you learn how to do on your own. A one shot tune we can do but is rough-certainly a good start - particularly if changing out injectors. No matter we can discuss. What I want to stress here is the enormous capability of the GM ECM's whether L98 or LTx. In most cases more powerful than most aftermarket once given the incredible software available to us today from TunerCat & TunerPro !!!
> If you own a L98 I might try to sell you a new slot style MAF sensor ... have 3 to choose from... all the way up to 1000 gm/sec i.e., well over 600 RWHP. Absolutely no reason to go S/D over MAF once you try a new slot style MAF !!! MAF much more forgiving !
> If an LTx I have done many tunes but I hope you'll see the wisdom of the "back & forth" over the one shot mail order !!!!!!!
So call me to discuss your options !!!
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From: altered state
St. Jude Donor '05
hope you'll see the wisdom of the "back & forth" over the one shot mail order !!!!!!!
op this takes more time but worth it. Make sure yours is in as good of running order as possible first, no vacuum leaks etc.
