How to tune an LT1?

**JwMonE99** · 03-23-2009, 06:18 AM

I have a 96 with the OBDII LT1 M6.
What are you guys using to tune with? I cant find nothing, unless I go with a stand alone but the more I get into it, its becoming a hassle.
Right now I want something that can tune my bolt ons and a few other minor things I got.
I am building a 383 stroker which I will swap with when I am done and after the swap I will be spraying it.
So I need somthing that I would be able to switch out between a n/a tune and a nitrous tune.
Please someone find me somthing.

**Quik** · 03-23-2009, 06:31 AM

look into LT1edit

http://carputing.tripod.com/9697lt1edit.htm

**Sleeper101** · 03-23-2009, 07:18 AM

My local Dyno guys have a Program from Gm that you have to buy. Which is about 500$ Ill try and get the name of it. But thats the latest and greatest for the Lt1's. It doesnt look like there is much out there offered. Im kinda going threw the same problem.

**JwMonE99** · 03-23-2009, 07:12 PM

Im thinking about going with an apexi neo
Its a piggy back, anyone ever use it?

**fastlt196** · 03-23-2009, 07:29 PM

Do u need a laptop 4 that gm program?

**JwMonE99** · 03-27-2009, 05:55 AM

bump for the apexi.

**5.0THIS** · 03-27-2009, 11:14 AM

BS3, LT1 edit, etc etc. Never heard of any domestic V8 guys going with apexi

**Sleeper101** · 03-27-2009, 04:33 PM

I used a Apexi SAFCII as a Piggy back on the 240, It is Def tunable, But you better have a Wideband 02 inorder to fine tune it.

**Red on Red WS6** · 03-27-2009, 04:37 PM

I been using Tunercat for years. Its a laptop based full tuner program, I believe it cost me about $349. I know he sold it to Jet and not sure what there pricing is now. I like it because I can tune as many cars as I want without having to pay extra license fee.

**JwMonE99** · 03-27-2009, 04:53 PM

Originally Posted by Sleeper101

I used a Apexi SAFCII as a Piggy back on the 240, It is Def tunable, But you better have a Wideband 02 inorder to fine tune it.

Yea I am getting an apexi SAFC 2 as well, or (ZT2) and probably going to get a zietronix wideband.
I can get the Apexi for $100 so cant complain.
Later on I will do a megasquirt stand alone.

**Antz97ZNJ** · 04-07-2009, 11:40 AM

LT1 Edit...just get a mail order...Lt1 tunes are pretty basic.

**NickNuggetZ28** · 04-08-2009, 04:51 AM

Do you need a carbureted LT1 to do megasquirt? How does it work? I cant find much information on it.

**NickNuggetZ28** · 04-08-2009, 04:52 AM

like i mean do you use the stock intake or do you have to go carbureted?

**JwMonE99** · 04-08-2009, 07:17 AM

No carb, im keeping it EFI.
I decided to go ahead and go with the megasquirt.

**Sleeper101** · 04-10-2009, 08:24 AM

Go to diyautotune.com and find out all the information on megasquirt you need. ALso Ms extra has alot of info.

**JwMonE99** · 04-12-2009, 08:26 PM

Yea im already set with MS. I want to delete my opti while im at it haha.

**Sleeper101** · 04-13-2009, 12:50 AM

You will want to go with a ls2 truck coil which has a built in ignitor. Those coils are sweet and put out some spark!! They pone a ls1 coil like a Honda lol.

But usually you can find them on ebay used cheap. I got my set of 8 for 91$ Used.

Im sure you are going to need a 36-1 crank wheel and also a vr sensor, Im using a vr sensor off a 99 ford escort zx2.

You will be doing a wasted spark setup in a direct driven coil.

If you have questions diy can answer or Ill try to

I got some experience.

**JwMonE99** · 04-13-2009, 07:17 AM

Originally Posted by Sleeper101

You will want to go with a ls2 truck coil which has a built in ignitor. Those coils are sweet and put out some spark!! They pone a ls1 coil like a Honda lol.

But usually you can find them on ebay used cheap. I got my set of 8 for 91$ Used.

Im sure you are going to need a 36-1 crank wheel and also a vr sensor, Im using a vr sensor off a 99 ford escort zx2.

You will be doing a wasted spark setup in a direct driven coil.

If you have questions diy can answer or Ill try to

I got some experience.

Thnaks man I will keep that in mind, I am hoping to do all this very soon.
Did you go with a innovate wideband?