EFI conversion
Le Mans Master
Joined: May 2000
Posts: 6,493
Likes: 6
From: Bloomington MN
Cruise-In II Veteran
I installed the FAST EZ EFI 2.0 multiport. Jury is still out. I had some installation issues. Nobody makes a throttle bracket and return spring setup that works right with this throttle body so I had to make my own out of an off the shelf FAST bracket and a welded on extension/other manufacturers return spring.
On the engine dyno, it fired right up and idled great. We pulled 7 times and gained a lot of power through the ECU learning to put more fuel in.
On the street, it hasn't quite had the same success yet. I still have some off idle problems (manual trans), and the power isn't near where it should be according to the dyno numbers. It starts and runs great, but it doesn't seem to learn at all. I have fixed a lot of minor issues (unrelated to the actual FI system) that may have caused it to not live up to its potential, but as of right now, I can't tell you to go ahead and buy one. The online support is terrible. They don't return emails and their message board isn't even staffed by their own employees.
I did, however, do the same thing as redcruz1120 and install a Tanks, Inc tank, in tank pump, and sender setup and am totally happy with that.
If things change and it starts acting more like I thought it would, I will happily update.
Drifting
Joined: Feb 2007
Posts: 1,498
Likes: 206
From: Pearland Texas
St. Jude Donor '09
Le Mans Master
Joined: May 2000
Posts: 6,493
Likes: 6
From: Bloomington MN
Cruise-In II Veteran
Update. Spent the entire day Sunday correcting 2 major issues (with relatively easy and cheap fixes) that were causing me problems. I am positive both of these issues were screwing up the learning function and power level. One was totally my fault and one I consider to be a mistake on FASTs part. I spent a lot of time scratching my head and chasing things, but these were the last two and made all the difference in the world. Engine now runs fantastic in the car. It fires and idles perfectly, and I am feeling every one of the 500+ HP. Wish I would have had some more info in the manual and online to help me but I think its there now.
There is definitely a learning curve with installing an EFI system!
There is definitely a learning curve with installing an EFI system!
Le Mans Master
Joined: Nov 2016
Posts: 9,256
Likes: 947
From: Lake Tahoe, CA
I did the holley sniper and hyper spark distributor combo. Did the progressive throttle upgrade too. Put the pump in the tank with a home made mount/ baffle. Used the factory steel feed and return fuel lines. It has been really nice. Allows everyday driver status despite heavy traffic where I drive. I did 0 tuning. It really does self learn ( except progressive throttle upgrade required changing settings )
Burning Brakes
Joined: May 2017
Posts: 774
Likes: 375
From: Seattle WA
BTW here is a thread I did about what I learn on my install.
EHI Thread
And here is my build thread that ends with the dyno run
https://www.corvetteforum.com/forums...-corvette.html
Scott.
