Factory efi

[GUMP]

Originally Posted by ed wright

fast xfi!

Holley EFI!!

[Ed Wright]

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]

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]

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]

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

[Robin Lawrence]

Originally Posted by Rob Wright

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

LOL, I am with you on this Rob. I hear this from time to time while at the Track. You would be surprised at how many people haven't scratched the surface with the capabilities of the more recent EFI units available today.

Robin

[Ed Wright]

Originally Posted by Rob Wright

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

One thing is something I was doing with my old Jr Stock ‘56. Running more timing in low & second gear. Something Jere Stahl put me onto over twenty years ago. I now run different timing in each gear. Easy 5 hundredths there. Jere told me he and Bill Jenkins had done that for years. Used to do it with our old dual point distributors & a toggle switch. “Turn on” the second set of points to retard the timing. I had re-drilled the breaker plate in my ‘56 Corvette distributor to move that one set of points to adjust the amount of retard. Spent most of a day on my Sun “distributor machine” working that deal out. Had the toggle switch mounted where my Hurst shifter tripped it going to high gear. I was much younger then, could usually remember to flip the switch back on the return road. LOL My FAST ECU does it all for me now. I do have a toggle switch now that shuts that function off, to help slow the car down when I don’t need it. The FAST XFI ECU can hold 5 “tunes”, I just use two.

[Lee Valentine]

Was just talking about doing the retard points deal with someone this morning.

[Ed Wright]

Originally Posted by Lee Valentine

Was just talking about doing the retard points deal with someone this morning.

First I ever heard of it was from Jere Stahl. Then I bought the book by Bill Jenkins showing how to do it. He was flipping the retard switch with the shifter in his Vega.
The NHRA World Finals was held in Tulsa a few years. I saw a switch in Monster Mash that I assumed was for retard.
The Ronca Brothers had a ‘56, same combo as mine, but MUCH faster! Took the winds out of my sales. LOL 25 years old, and thought I was bad fast. Evidently I held the record because they let me. LOL Never had the nerve, and was too embarrassed, to talk to them.

[JRyan]

You should be able to create a secondary table to control the timing like that through Holley as well. Can’t remember off the top of my head what the actual terminology for the table is. But you can create a secondary table based off whatever input you’d like. Such as time or transbrake release etc. I just recently started messing with this on my turbo 275 car where I can pull extra timing down track if the track isn’t as good. Not saying the fast system isn’t great but for a relative newbie to efi I love the simplicity in Holleys system.

Rick Ryan