Holley EFI

[tobenk]

Anybody running Holleys new EFI system? Im thinking about goin this route and was just wondering what people thought about them. The Dominator EFI system cause it can control trans too. 5.3/ 4L65e combo. Thanks

[chr2002ca]

Holley's new Avenger EFI/TBI and MPFI systems are getting good reviews from what I've seen. The following gentleman seems very happy with his and gave a very extensive review along with videos:

http://www.chevelles.com/forums/showthread.php?t=326671

I believe the Holley Avenger EFI/TBI system is reviewed in the latest Chevy Hi Performance magazine also.

I've read that the Holley Avenger MPFI intake manifold(oval port) is a bit restrictive for high-flo applications that are pushing the 600-650HP limits of the system, and that a lot of port work is necessary get the intake opened up properly. Holley is supposedly aware of it and is retooling to create a better oval port manifold, but there's no telling when that will be done. You might be able to replace it with Edelbrock's MPFI manifold, but then you'd probably need their fuel rails also. The Holley EFI/TBI system uses your existing manifold so it's not an issue with that system. I'm not sure about the rectangular port manifold.

[GregWeld]

Originally Posted by tobenk

Anybody running Holleys new EFI system? Im thinking about goin this route and was just wondering what people thought about them. The Dominator EFI system cause it can control trans too. 5.3/ 4L65e combo. Thanks

Just run the FAST EZ EFI multiport system - or their throttle body version - on any intake of your choosing... and get a stand alone tranny controller. Bowler sells a super easy version for this.

Don't be a guinea pig.

[tobenk]

Originally Posted by chr2002ca

Holley's new Avenger EFI/TBI and MPFI systems are getting good reviews from what I've seen. The following gentleman seems very happy with his and gave a very extensive review along with videos:

http://www.chevelles.com/forums/showthread.php?t=326671

I believe the Holley Avenger EFI/TBI system is reviewed in the latest Chevy Hi Performance magazine also.

I've read that the Holley Avenger MPFI intake manifold(oval port) is a bit restrictive for high-flo applications that are pushing the 600-650HP limits of the system, and that a lot of port work is necessary get the intake opened up properly. Holley is supposedly aware of it and is retooling to create a better oval port manifold, but there's no telling when that will be done. You might be able to replace it with Edelbrock's MPFI manifold, but then you'd probably need their fuel rails also. The Holley EFI/TBI system uses your existing manifold so it's not an issue with that system. I'm not sure about the rectangular port manifold.

I would like more control than the basic Avenger system does. Thats why i was choosing the dominator cause it has it all in one box. U dont have all the add ons. IDK will have to talk to somebody that runs one and see. I already have all the stuff( intake, throttle body, etc) just need the computer and wiring. Thks

[64duece]

It's an excellent choice. We run the Dominator EFI in our 55 Chevy shoprod. It's a twin turbo'd 570" BBC with DIS, DBW, Dual WBO2, 4L80E and Water/Meth added on. We also use the multi map capability to switch between pumpgas and E85 tunes.

When time allows...we've been working on E85 fuel economy. We've netted 11.5mpg to date. With the trans control, you can pull up fuel economy and work the tune with ease for cruise (just change target a/f, base map is self learning). Awesome resolution (31x31 tables)

Here's the link to download their software. If you have any questions..I'll be happy answer. http://holley.com/data/TechService/T...ld_3_Setup.exe

EZ EFI doesn't have igntion control...and an XFI requires and XIM for COP and the Trans controller (reboxed PCS unit) for trans control. We had an XFI/PCS unit in there...certainly worked well. It's just plain easier and have added control with everything in one s/w package (logging and tuning). Cost for the Holley stuff should be quite abit cheaper aswell.