Can Megasquirt II manage dual GM TBIs for Fuel Only?

A general forum and a place for initial or prospective users. See Manuals/Documentation
Click here to enter
Contact a Forum Administrator
If unsure where to post, post in this sub-forum.

Moderators: jsmcortina, muythaibxr

Post Reply
disjaukifa
MS/Extra Newbie
Posts: 13
Joined: Tue Dec 16, 2014 6:38 pm

Can Megasquirt II manage dual GM TBIs for Fuel Only?

Post by disjaukifa »

Hello!

So I've been helping my best friend get his Camaro with an LT4 swap working on Megasquirt III which is now working and I have his original Megasquirt II that we were going to use. I've half built the MSII and I built his MSIII unit. My question is I've got a AMC 360 V8 motor that I'm wanting to covert to EFI, and I've got a trade for some stuff I have for a Dual 4-Barrel Carb intake for my AMC 360 V8 or a 2x4 Intake.

Can Megasquirt II handle two GM/Chevrolet TBIs to run fuel only? Not wanting to control spark at the moment, I might down the road, but at this time I'm just wanting to control fuel.

Thanks
Grant
ol boy
Super MS/Extra'er
Posts: 1532
Joined: Mon Sep 10, 2007 3:06 am
Location: Tucson, Az

Re: Can Megasquirt II manage dual GM TBIs for Fuel Only?

Post by ol boy »

Yes. I did this for 4ish years on a 289 Ford. Did GM cop for ignition also. I opted for a Ford idle air valve. Plugged off the IAC holes on both TBIs and plumbed in the valve into the front pcv port.

Sent from my SM-G920V using Tapatalk


Found it. Google "dual GM TBI SBFord"

https://ryandenney.carbonmade.com/projects/4806227
306 SBFord, Torquer II EFI intake, 60 lbs injectors, 8 LS2 coils, VS Racing 7668 turbo, 4R70W, MS3x fw1.4 w/built in trans controller.
kjones6039
Super MS/Extra'er
Posts: 1986
Joined: Sat Jul 22, 2006 8:02 pm
Location: Eureka, NV USA
Contact:

Re: Can Megasquirt II manage dual GM TBIs for Fuel Only?

Post by kjones6039 »

This seems to me to be about the same as the old GM Crossfire injection (2 tb's on single manifold) used on early 80's Corvette, Camaro etc. For a short period I ran the Crossfire setup and it worked just fine. IIRC, I ran 1 injector channel per tb.

Ken
1979 Corvette - 383 CID SBC w/ Holley Pro-Jection 900 CFM TBI, 4-85 lb lo-z injectors & Walbro 255 pump
MS2 v3 w/extra 3.4.2 Release
36-1, Delphi LS2/7 coils in wasted spark, driven by v2.0 logic board from JBPerformance
Spartan Lambda Sensor from 14point7
TinyIOX from JBPerformance
Post Reply