Have an '80 Camaro that I use as a daily driver but the Q-Jet mileage is really killing me. Tried several options including an rebuild-tune but 30 plus year never go unnoticed.

I'm trying to setup my own system but are a little confused about the injector or pump selection.

Is there a table or something that lets you determine that based on engine type or power?

Thanks! Your help will be appreciated.

 

TPI or TBI ?

Approx HP of your engine ?

What ECU do you plan on using ?

This is a popular choice here: dynamicefi.com

You will need a wire harness. Not sure if member S10wildside is still doing that?

 

Mmm ok checked the guys at dynamicefi.com but still need to know how to select injectors and pump, I'm looking for a MPFI setup.

Already have an '82 C10 TBI-equipped and it runs good but on warmups it still suffers a little because of fuel distribution I think, so in the Camaro case I would like to go the MPFI route.

The power is estimated at about 300hp, according to the parts combo. As for the ECU, I would like to use a late model one (LS) I've read they are much more flexible in terms of future upgrades and that no chip programmer is required as they can be tuned from the diagnostics link. Is that correct? or how much of a hassle is programming a chip?

Thank you!

 

Dynamic does MPFI as well called port mod to donor GM ECM.

22 lns injectors(8) supports 313 HP at 80% DC.

Not sure if LS ECU will allow a conventional distributor/coil/module. May need a retro fit of a crank trigger ?????

 

Thanks for the quick reply! Yep you're right it seems that 22Lb/hr injectors are the ones. And dynamicefi.com has a very good option for updating an old ECU with modern features, but the goal is having full control over the drivetrain so I was thinking to swap the old TH350 in favor of a 4L60E.

That's the reason behind a late model LS computer. I've been doing some research and there´s another company eficonnection.com that sells retrofit kits for SBC Gen I and it seems that early SBC guys can get away with a distributor and crank sensor/timing cover from L31 engine, the only drawback is that all that hardware seems a little pricey for a doit yourselfer like me.

I´m going to study the dynamicefi.com option, 'cause there's the 700R4 anyway and let me share with you these calculators that found which seem practical since they're for phones. Thanks!!

https://play.google.com/store/apps/d...efimathandroid

https://itunes.apple.com/us/app/efi-...5062?ls=1&mt=8

https://itunes.apple.com/us/app/efi-...5726?mt=8&uo=4

 

I think the aftermarket supports that with a controller of sorts.

did you see a recent thread on that? RBob suggested Northstar is the low price choice.

 

Yep, the northstar option looks interesting too. Some time back read something about using a TBI ECU to drive 8 injectors with some sort of bridge in the electronics (to eliminate a resistor).

If that's possible a whole new option comes in 'cause I could use a more modern TBI ECU to handle the EFI and transmission with the EFI being MPFI (batch-fire) and there's the option of going DIS with the NorthStar setup.

That route would cut down the costs to a minimum. But the remaining question is: it is possible to convert the TBI ECU to MPFI?

Thanks a lot!

 

EBL with PortMod.

 

I had a '79. You probably want to do some reading on nastyz28.

For the fuel system, what I did was mount an LS1 fuel pump assembly in the stock 76-81 tank. This style pump has a built in bucket with a fuel reserve so you won't run the pickup dry under hard braking or cornering.

http://www.nastyz28.com/forum/showthread.php?t=228464
For the ECM, I'd probably go with a Microsquirt for your application:

http://www.ebay.com/itm/Megasquirt-M...f7b265&vxp=mtr

You could splice it into just about any EFI harness, use ANY ignition pickup, etc. It is the most flexible.

Megashift will control the electronic trans.


-- Joe

 

Wow!! Interesting Anesthes! Thank you! Let me take a look at it. Didn't know there was a Megasquirt trans controller.

Thanks!

 

There is a lot out there.

http://www.msgpio.com/manuals/mshift/wiring.html

Just have to know where to look, who to talk to.

You might want to actually do the micro module inside a case with the megashift, rather than running the mega (GPIO) in breakout box. Be cleaner.

-- Joe

 

You're thinking of the 16197427, that is natively used as TBI, but has option to use as MPFI, the jumper is the hardware side, it does require some tuning o make it complete. A very good option IMO. I currently have one running a Crossfire equipped 305 (will be a Vortec 350 again, once I rebuild it), and a 4L60E.

There are a number of people that use this ECM on gearhead-efi.com, so you can find plenty of information there, and a lot of other EFI related information.

 

Thank you very much guys! That ECU is grabbing my attention Six_Shooter, before going to that site, do you know if that can be accomplished with a 16168625 ECU? I've a truck that's running that ECU.

Thank you!!

 

I believe the 16168625 would work the same, but would be best to ask people that have used that particular PCM for such a swap. There are guys on the site I directed you to, that have used that PCM.

 

Is there a WB-02 patch for $0D ?

I know these are wicked popular with the TBI guys. I think Junkcltr ran one MPFI . I vaguely remember something about a jumper and resistors.

-- Joe