Factory efi

House of Darts · 03-27-2020, 06:52 PM

Might take a crack at racing a Ford 4.6 in stock . Do I keep the factory EFI set up or is there an aftermarket unit? Change out the computer from the factory unit with what? I've seen the set ups with the FS cars and I don't think I can use this stuff.

Dan Fahey · 03-27-2020, 10:44 PM

Quote:

Originally Posted by House of Darts

Might take a crack at racing a Ford 4.6 in stock . Do I keep the factory EFI set up or is there an aftermarket unit? Change out the computer from the factory unit with what? I've seen the set ups with the FS cars and I don't think I can use this stuff.

Reading rules regarding my ImpalaSS you run the existing EFI.
Nothing wrong with it..Lot of good ODB2 tunes to make it run.
In fact run as light as a P/SA car...give Mike E in his Caprice a tough run.

If you build it..want a heads up run against my Pure Stocker ;-)
Bet you a whole $1 and dinner..

Dave Noll · 03-28-2020, 03:37 PM

Quote:

Originally Posted by House of Darts

Might take a crack at racing a Ford 4.6 in stock . Do I keep the factory EFI set up or is there an aftermarket unit? Change out the computer from the factory unit with what? I've seen the set ups with the FS cars and I don't think I can use this stuff.

You can use the stock computer with a TwEECer.
www.tweecer.com

GUMP · 03-28-2020, 05:38 PM

Save yourself a ton of grief, switch to an aftermarket system. It will pay dividends in the long run.

Ed Wright · 03-29-2020, 10:58 AM

Quote:

Originally Posted by gump

save yourself a ton of grief, switch to an aftermarket system. It will pay dividends in the long run.

fast xfi!

GUMP · 03-29-2020, 11:43 AM

Quote:

Originally Posted by ed wright

fast xfi!

Holley EFI!!

Ed Wright · 03-29-2020, 03:08 PM

Quote:

Originally Posted by GUMP

Holley EFI!!

I have tuned several with both FAST XFI & Holley. I would certainly disagree. I can & do make the FAST system do things the Holley can not. Besides the Holley ECU failures I have seen.

GUMP · 03-29-2020, 09:20 PM

Quote:

Originally Posted by Ed Wright

I have tuned several with both FAST XFI & Holley. I would certainly disagree. I can & do make the FAST system do things the Holley can not. Besides the Holley ECU failures I have seen.

I have five cars running Holley. I have never had one issue.

Rob Wright · 03-30-2020, 08:24 AM

Quote:

Originally Posted by Ed Wright

I can & do make the FAST system do things the Holley can not.

Can you give specific examples, and describe the impact of those things?

Rsmith38 · 03-30-2020, 08:59 AM

While I only have 1 jeep running the Fast XFI2, I am quite happy with it. Bought used on EBAY - (replacing the obsolete silver FAST - no longer supported). It is still a work in progress - not a lot of Jeep 4.0 support (on anything!) but no tech problems at all over 2 years.
1051 StK

03-27-2020, 06:52 PM	#1
House of Darts Member Join Date: Mar 2007 Posts: 346 Likes: 19 Liked 20 Times in 15 Posts	Factory efi Might take a crack at racing a Ford 4.6 in stock . Do I keep the factory EFI set up or is there an aftermarket unit? Change out the computer from the factory unit with what? I've seen the set ups with the FS cars and I don't think I can use this stuff.

03-28-2020, 05:38 PM	#4
GUMP VIP Member Join Date: May 2002 Location: Shelby, NC Posts: 1,817 Likes: 2,144 Liked 2,325 Times in 546 Posts	Re: Factory efi Save yourself a ton of grief, switch to an aftermarket system. It will pay dividends in the long run.

03-30-2020, 08:59 AM	#10
Rsmith38 Member Join Date: Mar 2011 Posts: 186 Likes: 0 Liked 28 Times in 15 Posts	Re: Factory efi While I only have 1 jeep running the Fast XFI2, I am quite happy with it. Bought used on EBAY - (replacing the obsolete silver FAST - no longer supported). It is still a work in progress - not a lot of Jeep 4.0 support (on anything!) but no tech problems at all over 2 years. 1051 StK