mcdonaldheat

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

billschroeder5842

What's that? I've never heard of a "mail order" tune?

BlowerWorks

Me either !!! lol - many steps to a good mail order - like a bride ??? lol greg

mcdonaldheat

it's where you send your chip to someone like pcmfor less with all your specs on your engine. They program it and send it back. I don't know how well it works.

mcdonaldheat

I've heard and read it's better than just getting like a hypertech chip. No where close to me to get a custom tune. Mail order brides could also be efficient and perform well. Haha

BlowerWorks

HA for sure - call me and I'll tell all !!!!!!!! LOL

billschroeder5842

Sorry, I don't see the difference between sending your chip to be reflashed or just buying a hypetech chip?

What am I missing?

bjankuski

I have no idea why everyone is giving you such a hard time. TPIS, PCM for less, and others can burn you a chip. Do a search and you will find some places.

vader86

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.

mcdonaldheat

Thanks so much, this is the info I was looking for. Pcmforless has the engine spec sheet on their website to submit for the tuner. I gonna try to find the datamaster.

cv67

that will help you and save frustration
Tom @Wongs performance has some good ones on file also
believe hes still a member here had good dealings over the yrs

GREGGPENN

..... 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?

mcdonaldheat

It is a 86. I would love to go with Moates but I do not know if I could tune it myself. I would like to know how just seems like alot of parameters that I know nothing about.

anesthes

What ECM are you using?

-- Joe

mcdonaldheat

Stock

anesthes

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

bjankuski

I agree with you on the tune changes, but I personally like $32B better the $6E but either will work fine with AE changes and some minor tweaking of fuel and spark.

BlowerWorks

> 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 !!!

cv67

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.

aklim

I call it "Guess a tune".