I've been doing a little window shopping around FAST's website and noticed the EZ EFI 2.0 TPI kit. I don't have all the details on its workings but it looks pretty straight forward in set up and I like that it self tunes. Also noticed to pull this off requires the dual sync distributor that compliments the system. It's about $1300 for the EZ EFI hardware kit and harness.....$1700-$1800, including the distributor. Nitrous compatible as well for future pipe dreams.

The plug and play aspect is really pushed with this system. Straight from their website for the SBC dual sync:

"Reluctors & pick-ups that have been properly aligned right out of the box that eliminate the need to set crankshaft reference angles or rotor phasing manually before installation"

Is this referring to distributors using rotor weights? For whatever reason, I read this as literally dropping in the distributor without ensuring anything is pointing at the #1 cylinder. How exactly is this distributor working versus the old school model? I watched a youtube video of David Freiburger installing a FAST on one of his cars and it was it was as easy as typing in engine size and various other metrics before starting it up and letting the computer learn the motor.

So who's using this engine management combo? Like it? Really considered a blower works MAF and bin to replace the stock MAF but I'm awful at tuning. Blower works guys have been A+ in working with me, but I'm the weak link between the larger MAF with upgraded bin, because blower works has to ballpark their assistance based off the assumption I actually can do SOME tuning. I've been terrible at it and have run out of patience. Fried my brain on Thirdgen DIY prom a few times and this aspect of the project hasn't been fun at all.

Tables, scalars, and flags are just not something I enjoy reviewing all day. Just ready to drive the damn car properly and don't mind blowing the tax return to have a new age computer learn the miniram 383 versus a band aid fix with 80s electronics.

 

I dont have experience with this brand of system but I have installed Vipec and Megasquirt and have a 2 year college degree in electronics.More than likely when you install the distributor you will put a value in the software( ex 10 btdc) and you will tell it to lock out all advance.Then you time it the old fashoned way,lock the dizzy down and you are done.Once you do that the dizzy will be synced and all work will be done on your laptop or the systems hand held programmer.Some systems even use your cell phone now.My suggestions on an install.I would start with all new wiring and plugs at the sensors.You can get replacement pigtails from Rock Auto or www.diyefi.com.Also make sure you are getting proper fuel pressure from your pump.Usually the systems use a wideband o2 sensor so you can see actual a/f ratio.Solder and shrink tube your pigtails to your harness.If you do this please post back with your results.The reality of it is an ecm is just a processor and some ram chips.Its the software that makes it or breaks it.Trying to design software that an average gear head can use easy is the tuff part.

 

I have been researching this option as well. I like the fact that it has the wide band o2 and is in closed loop at WOT. That and it looks fairly easy to set up.

 

When I was shopping for a new engine management system for my 383 build I settled on Holley HP EFI for TPI. I liked all the extras the Holley ECM has built in like progressive nitrous control boost controllers etc etc. Plus they have some of the coolest add-on like screens , dashes shiftlights etc. Support isn't bad also.

 

I am running the FAST EZ 2.0 and really like it. There were a lot of extras that I had to buy, especially if you want the computer to control your timing.

You will need their Dual Sync Distributor, external coil and an MSD box. I think it's worth it as you can adjust timing fro the hand held as well as set up your timing curves.

I needed all new sensors as their system is set up for the late model sensors and I had an older TPI engine. If you're running old style injectors, you will need those too, though you can buy adapters. I initially was running a Super Ram and did not have room for the injector adapters, but now am running a mini-ram so wouldn't be an issue today.

Set up was easy, only issue I had was the ECM was defective, sent it back to FAST, received a new one and all was good. The guys over at FAST were willing to get on the phone and troubleshoot. After connecting everything the car fired on the first try. Ran great right off the bat, but did get better every time I drove it.

Currently in the middle of roller cam conversion, can't wait to see how the computer handles the extra duration.

JW

 

this system is amazing

it can do stuff like turn on a methanol injection system based on boost.

what made me a believer was i got to hear/see/smell a 92 corvette w/ a crazy 250ish i take duration cam idle. it had the holley efi.

it idled beautiful and there was no smell from the exhaust.

IMHO it is a better engine management system than an lsx pcm

 

Interesting. How is their support? Do you have to upgrade ignition components like you do with the EZ EFI 2.0? I did a little searching over on thirdgen and apparently it's doable to run a MSD pro billet with the FAST versus the dual sync distributor they sell. Either way, an MSD box is required. I see the Holley EFI units on summit, they're about $500 more than the EZ EFI 2.0. I don't have a monster motor by any means but it's beyond the 80s computer and stock MAF for how it should be running.

 

I am running a small cap HEI distributor and coil with my setup. Was cheapest and easiest. There support is very good but I honestly haven't had any issues. Very simple to hook up and most of the sensor they use are stock sensors so no pigtails to buy or sensors to change. Plus all my gauges still work besides Instant MPG

 

Was it plug and play for you or did you have to enter in engine/performance specs? Took a look at the specs on the Holley and there's a lot. As long as it's hassle free I'm interested.

 

​​​​I don't think any standalone system is gonna be plug and play.... Our cars have electric fuel pumps and cooling fans so if you want the Holley ECM to control cooling fans you'll need to wire them in. Engine wise it all plugs right in. ECM power goes to battery. One wire to fuel pump relay and one to a 12V power source that has 12V well cranking. After that punch in engine specs/injector size and follow the directions. Pretty straight forward

 

..... Go to Holley's website ... you can download any/all of their software for free ... Download the HP stuff and have a look at the setup and options for base tunes ... also look at the engine parameters setup page ... I think you'll be impressed , I was ..... I'm running a Holley Dominator with sequential fuel injection and coil near plug on a 1st gen small block with 261/269 @ .050 duration solid roller cam .....

 

I've been planning on doing the FAST 2.0 retro setup for awhile, before I was looking at the Holley HP. I think the holley has more features but don't plan on needing it for this car and the FAST will do plenty.

I can't rem if the Holley deals with lock-up or not? I orig planned to leave the stock ecm for that but was told I couldn't.

https://www.corvetteforum.com/forums...vs-fitech.html

 

I run the Holley HP in my 85...completely eliminated the old one off 85 ECM...best thing i ever did...had mine professionally installed and tuned. No more one off 85 MAF sensor either. Coverts to MAP...no more MAF relays either. For the early C4's it's a no brainer in my estimation.

And forget about you think about camming a MAP car vs. MAF.....this thing is idles like OEM and is self learning. Today's technology is light years ahead.

 

Also, any future engine swaps or performance upgrades, I am ready for tuning. The Holley HP, will run later generation engines like the LSX and do it well.

 

Been watching MCM and wanted to know more about the flex fuel sensor used on a few builds and it's pretty much a gm one with a haltech sticker. Anyways from what I can tell FAST 2.0 will support this sensor, so e85 is another plus. Can't tell if holley does but don't look like it so far?

 

there re are folks running e85 on the Holley HP; you can find the research on it. Also if you need an electronic controlled auto transmission you can go with the Holley Dominator.

 

You can run only e85 on any EFI I think, if you tune for it. How many can you run gas and then add e85?

 

..... I run E85 in my heap ... its readily available , inexpensive @ $1.82/gallon , and has enough detonation resistance to tolerate my 13:1 compression ... I don't think Holley controllers will support Flex Fuel sensors yet but you could always call 'em and ask .....

 

Yeah, I figured that little would need to be done. I don't have a problem with that and I know there's diagrams for that. Well I can give it a try and C409, I'll be browsing over their website.

 

..... FYI ... Both FAST and Holley have in house training classes for EFI tuning and installation ... Holley's classes are booked wayyy out , but FAST still has some openings for March 2 , 3 , & 4 at the Comp Cams complex in Memphis .....