Rusty Bowtie

General Category => General Discussion - Intros => Topic started by: EDNY on January 04, 2018, 08:15:56 AM

Title: TBI tuning option.
Post by: EDNY on January 04, 2018, 08:15:56 AM

Neat idea for anyone wanting to increase performance on a TBI engine.

https://www.ebay.com/itm/Injector-Tuner-for-EFI-Optimum-EFI-TBI-Throttle-Body-Injection/252865497725?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D47301%26meid%3D61e015035b5a4a82ae22dd64f59c2839%26pid%3D100623%26rk%3D2%26rkt%3D6%26mehot%3Dpp%26sd%3D252871869017&_trksid=p2047675.c100623.m-1

https://www.ebay.com/itm/Injector-Tuner-w-regulator-for-EFI-Optimum-EFI-TBI-Throttle-Body-Injection-/252871869017?afsrc=1&rmvSB=true

Title: Re: TBI tuning option.
Post by: 39delux on January 04, 2018, 12:54:44 PM

Who does the tuning?

Title: Re: TBI tuning option.
Post by: EDNY on January 04, 2018, 01:22:09 PM

Probably the easiest method is to datalog with TunerPro RT, then flash a EPROM for the ECM.  I have had luck de-soldering the 1227747 ECM PROM and soldering in a zif socket. 

In my trucks case I chose to remove the TBI setup and install a TPI setup then use the TPI ECM.  Here is a pic of the conversion I put in my 1994 Chevy truck.  A lot more torque than the TBI setup.

Title: Re: TBI tuning option.
Post by: 39delux on January 04, 2018, 06:09:42 PM

My first fuel injection sway was a TPI and I've always had a soft spot for them.  It just begs to be retrofitted with a Megasquirt unit.  Built a MS several years ago.  Get to learn lots about electronics and fuel injection in general.  Haven't done much with the TunerPro. 

Title: Re: TBI tuning option.
Post by: EDNY on January 04, 2018, 07:25:27 PM

It's kinda fun...but it takes me a while to relearn stuff I did a couple months ago :o

I use TunerPro Rt to read, tune and re-flash the 16188051 PCM's for LT1 engines.  You'll need Moats Flash & Burn to flash the EPROMs in the TBI engines.

Have used this free tuning site with real good luck for the LT1 stuff:

http://fbodytech.com/bin-files-2/free-online-tuning-service/

Title: Re: TBI tuning option.
Post by: 28chevyguy on January 07, 2018, 10:32:10 AM

^^^  I'm running a '90 Pontiac McLaren grand prix turbo with 727 ecm ... prom removed and replaced with re- burnable chip.. car makes around 450-475 hp on a  little aluminum chevy  3.1 engine ... i have been modding that car for almost a decade now .
anyways,  yes there is plenty of stuff you can do with obd1 , the bins are out there .