4.3 TBI to 350 TBI swap

[PlayingWithTBI]

Once I get the computer back, is it okay if I ask you guys for tuning tips?

If I can... Look on his site and read the Introduction to tuning parts 1 & 2. Here's a link to a thread dedicated to the EBL which @rbob haunts (I know his email is different than his profile). 99 pages and still going

Tuning with the EBL - Third Generation F-Body Message Boards

DIY PROM - Tuning with the EBL - Hey can we start a thread for EBL tuning. The EBL thread is grown rather large and was pre release. All of us that are using the EBL could share our results and tweaks. RBob would have a place to vist on his own time and help those that need advice using his EBL...

www.thirdgen.org

Edit: here's the link with the https:// removed
www.thirdgen.org/forums/diy-prom/356351-tuning-ebl.html?ispreloading=1

 

[FrankieD61]

Hey, everyone! I decided to go with the EBL-FLASH 2 system.
One question: Will all of my gauges work (oil pressure, tac, speedo, temp, etc)? Or will I have to do mods?

 

[Schurkey]

Moderately sure the instrument cluster is not affected. Your gauges are driven directly by sensors/sending units. Newer instrument clusters take their orders from the computer.

 

[PlayingWithTBI]

Moderately sure the instrument cluster is not affected. Your gauges are driven directly by sensors/sending units.

^^^This. Your 91 has a tach? FWIU it must be a late 91 then. Either way you can get your tach signal from the white wire on the coil like I did on my 88 for my Dakota Digital dash. All others should work fine. If you send your ECM in to be converted to the EBL, it shouldn't matter either way.

 

[FrankieD61]

^^^This. Your 91 has a tach? FWIU it must be a late 91 then.

Yes, it has a tach. It's a 5 speed manual trans. But, with the Flash-II, it shouldn't matter?

 

[PlayingWithTBI]

But, with the Flash-II, it shouldn't matter?

Yes, it should work. You can email [email protected] with your ECM Service # and ask him to be sure.

 

[FrankieD61]

Hey guys! I got my ECM back in the mail today. I hope to install it in the truck next week and play around with it. I'll let you all know what happens.

PlayingWithTBI, thank you so much for the suggestion on this system!

 

[FrankieD61]

Does this computer come with a base tune? Will the truck start without any modifications done to the ECM as-is? How will I know where my baseline is?

I just want to know what to be prepared for.

 

[PlayingWithTBI]

Does this computer come with a base tune? Will the truck start without any modifications done to the ECM as-is? How will I know where my baseline is?

It should have come with a CD containing "Base" tunes for different engines. Try one that's as close to what you have and go from there. IIRC I started with EBL_F_3000 but that was 2-1/2 years ago and I have CRS. What kind of power adders do you have on it or is it basically stock?

 

[FrankieD61]

What kind of power adders do you have on it or is it basically stock?

It has shorty headers, No EGR, or cat. Other than that, stock.