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FE Power Forums => FE Technical Forum => Topic started by: fekbmax on August 03, 2020, 07:02:55 PM

Title: Tunable Throttle body fuel injection for racing
Post by: fekbmax on August 03, 2020, 07:02:55 PM
Any recommendations?
Fitech, fast, quick fuel, Holley, accufab, something different, ??
Suggestions on where to start looking .
Title: Re: Tunable Throttle body fuel injection for racing
Post by: RustyCrankshaft on August 03, 2020, 09:07:06 PM
For racing I'd stay away from the purely self tuning stuff like the FiTech.

I don't mind self-tuning, but I like to have some control over what the self learning is doing.

Holley, BigStuff, MegaSquirt are good controllers with a lot of options and run whatever throttle body you'd like.
Title: Re: Tunable Throttle body fuel injection for racing
Post by: turbohunter on August 03, 2020, 09:27:35 PM
Keith you seem like the kind of guy to me that would enjoy a Megasquirt system.
You like building your own stuff (I remember your oiling system) and you won’t get anything more able to adjust to whatever you can throw at it.
It’s a port injection deal not throttle body injection (can be TBI also) , it’s darn cool and can allow for any add on you want.
https://www.diyautotune.com/shop/mspro-efi-ems/ms3pro/
Title: Re: Tunable Throttle body fuel injection for racing
Post by: BattlestarGalactic on August 04, 2020, 10:26:50 AM
Ditto on the self tuning stuff.  Nice for street driving and not worrying about consistency at the track.   

A friend tried running his stock computer on his '87 foxbody for many years.   After constantly chasing his tail with it he ditched it for a carb and removed all his issues.

A co-worker put Mega squirt on a vintage Porsche 911.   He seemed to make it work pretty well after some learning curve on tuning.  I think the advantage was using off the shelf parts(injectors, TB, and the like) and building the system himself.
Title: Re: Tunable Throttle body fuel injection for racing
Post by: My427stang on August 04, 2020, 11:57:20 AM
You can certainly build a throttle body system and control it with a Megasquirt if you wanted to save a rare manifold, it would have all the adjustibility and modern NASCAR racers aren't far from that with the injectors way up high

It wouldn't be sequential at lower speeds like a port injected setup, but that's likely just fine too. 

Title: Re: Tunable Throttle body fuel injection for racing
Post by: turbohunter on August 04, 2020, 12:42:02 PM
Your right Ross it can control pretty much any type of system.
Title: Re: Tunable Throttle body fuel injection for racing
Post by: 428 GALAXIE on August 05, 2020, 12:44:43 AM
Just pick up throttle body of your liking and search engine management that your pocket allows.

If I were building fuel injected race car from ground up I would take motec (there are others)which could handle all the cars eco system,engine management, electrical system  ,data gathering, and so on.

Going to your mustang?
Its already done if I remember right.
Title: Re: Tunable Throttle body fuel injection for racing
Post by: fekbmax on August 05, 2020, 05:52:40 AM
Yes thinking about switching over on new engine. Definitely don't want self learning system.  Just in research stage at the moment.
Title: Re: Tunable Throttle body fuel injection for racing
Post by: Russ67Scode on August 05, 2020, 06:40:02 AM
After running a FAST port injection system and installing a holley sniper system on a friends 70 mustang. I would go with the holley system.  For the simple fact that almost every tuner knows the holley system!!!!! Now I had to learn how to tune on my own but if you don’t want to do that just about every one I talked to knew the holley!
Title: Re: Tunable Throttle body fuel injection for racing
Post by: Coubra on August 05, 2020, 07:46:31 PM
After seeing some other plugs for port injection, I'm going to put my two cents in.  This past year installed an Edelbrock Pro-Flo 4 system on our engine, where a Pro-Flo 2 system had been before.  The 2 had been a nightmare and the 4 system exactly the opposite.  Put parameters into the 4 and let it do it's thing with the advantage of being able to make adjustments as I want.  Just sayin'...

https://www.edelbrock.com/edelbrock-pro-flo-4-efi-kit-35960-for-ford-fe-390-428-engines-35960.html
Title: Re: Tunable Throttle body fuel injection for racing
Post by: My427stang on August 05, 2020, 09:01:52 PM
I am surprisingly happy with the behavior of my Pro flo 4 too, but really the only significant adjustments are a/f mixture and basic timing curve.  There are lots of things you can play with, but nothing like a comprehensive program

Compared to a race type, to include MS, you just don't have the control and are trusting the programmers. 
Title: Re: Tunable Throttle body fuel injection for racing
Post by: RustyCrankshaft on August 06, 2020, 09:58:24 PM
After running a FAST port injection system and installing a holley sniper system on a friends 70 mustang. I would go with the holley system.  For the simple fact that almost every tuner knows the holley system!!!!! Now I had to learn how to tune on my own but if you don’t want to do that just about every one I talked to knew the holley!

I'm not really sure that's the case these days, but it probably varies from region to region. Around here it's just as easy to find a shop to tune a MS, BigStuff, etc as it is a Holley. Plus with the internet if you can get a base tune close to enough to get it to run without hurting itself you can data log and remote tune/forum tune it.

The Holley Sniper really isn't any better than a FiTech or similar as that is what market Holley was targeting with it. The Dominator stuff is a whole different ball game and is really good/detailed and is a nice package. But you pay a premium for the Holley name. I think the current generation of MS and BigStuff (and a few others at this point really) are as good as Holley and a better price point in some cases.

I've also found the MS/DIY Autotune and BigStuff guys are pretty helpful to work with directly. Not sure how many people have called any Holley brand for support lately - but I'm not impressed to say the least.