Fast Ez Efi For Stealthram

Johnatthebox

Johnatthebox

Active Member
I have a Holley Stealthram on my SBC and am looking to upgrade to self-learning efi. Anyone have any thoughts on the FAST EZ-EFI multi port retro-fit kit 302000?
 


this mod (look at pictures)
definitely is worth the time and effort required, on a friends flow bench theres very noticeable gains, keep in mind the old weakest link in the chain concept , if the heads flow 300 cfm, the intake MUST also flow at LEAST that well.
http://garage.grumpysperformance.com/index.php?threads/porting-can-help.462/page-3#post-91237

http://garage.grumpysperformance.com/index.php?threads/port-speeds-and-area.333/#post-72826

http://garage.grumpysperformance.co...-by-step-guide-with-pictures.5378/#post-71848

btw I also port matched the lower runner exits too the head ports
stealthrmbo3.jpg


porting the stealth-ram base and port matching the intake too the cylinder heads allowed a 300 cfm flow, its significantly less unmodified
portedhsr.jpg


links to info that may help
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https://www.themotorbookstore.com/c...MIrei9nJqr7gIVD4iGCh3orQayEAQYAiABEgJUMPD_BwE

http://www.larryselectricsite.com/downloads/tpiinstructions.pdf

https://howellefi.com/wp-content/up...t-or-LT1-Fuel-Injection-Harness-1985-1992.pdf

https://www.hotrodhardware.com/inde...d=7157/category_id=1579/mode=prod/prd7157.htm

https://www.ronfrancis.com/images/TP30-INST.pdf

http://www.jimsperformance.com/tpibuy.html

https://www.hotrodhandbooks.com.au/eBooks/TPI/TPI On Line-03-1.html
 
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I have installed a bunch of the FAST 2.0 kits. But all with the FAST t.b. One with the xfi controller that is not self tuning. A few with the dual sync distributor. And I wired all to control ignition timing. Fast is the best aftermarket efi on the market. And their price very much reflects that. I have not got to install the multiport retrofit, yet. But it is pretty straight forward. I love taking and posting pictures of all that I do. I have done so with a lot of these installations. If you would like to see what it is to install one or what they look like going in, I have one thread with 2 installs here:

https://www.superchargerforums.com/threads/from-fitech-to-fast-making-right-the-wrongs.9034/

And others here:

https://www.digitalcorvettes.com/forums/showthread.php?t=255809

https://www.digitalcorvettes.com/forums/showthread.php?t=242889

https://www.digitalcorvettes.com/forums/showthread.php?t=252282

And I am getting ready to install one on this 540ci dart big m 1968 c10 we are building. FAST is the best EFI out there and their 2.0 stuff is just great. It even has it's own built in diagnostic capabilities for when things go sideways. The handheld is very easy to use and get setup also. I have a handful of screen shots from setting up the handheld controller displaying it's utter ease of use on this page right here:

https://www.digitalcorvettes.com/forums/showthread.php?t=255809&page=2
 
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Auto Wiz... You summed up and worded my fears of what I was reading about the FI tech system shutting down.
I was looking into EFI for my build but I have seen the prices of FAST and others... It is out of my ballpark unfortunitly.

Sorry John... Did not mean to hi-jack your thread.
 
Run from FiTech. If you can not afford FAST then look at the Holley sniper. I have heard good things about those. I have not installed one, yet.
 
Johnatthebox said:
Anyone have any thoughts on the FAST EZ-EFI multi port retro-fit kit 302000?
Click to expand...

Another plus for your holley stealth ram is that it uses gm sensors. Which is what the FAST t.b. uses. GM iac, GM map, GM coolant temp, GM tps. GM iat. Which means that you will likely have a very easy time getting things up and going. Just stay away from them old style injectors. We don't use filter baskets today. Get you some FAST injectors. Pick the flowrate for the power you plan on making and get a set like these:

https://www.summitracing.com/parts/...X0SX6m9drDEMs2xHUCxXjFaSK7XJcjDMaAl_sEALw_wcB
 
AutoWiz said:
Another plus for your holley stealth ram is that it uses gm sensors. Which is what the FAST t.b. uses. GM iac, GM map, GM coolant temp, GM tps. GM iat. Which means that you will likely have a very easy time getting things up and going. Just stay away from them old style injectors. We don't use filter baskets today. Get you some FAST injectors. Pick the flowrate for the power you plan on making and get a set like these:

https://www.summitracing.com/parts/...X0SX6m9drDEMs2xHUCxXjFaSK7XJcjDMaAl_sEALw_wcB
Click to expand...
The FAST ez-efi multi port retro-fit kit was the one that seemed to make the most sense. Do other brands offer kits specificly desisigned to upgrade using existing components ? Also-since you have some experience with FAST ez efi.... Is 302000 the right kit for me?
 
Johnatthebox said:
Is 302000 the right kit for me?
Click to expand...

No sir. I believe you would want the 30404-kit, here: https://www.summitracing.com/parts/fst-30404-kit

The first gen stuff is ok i guess, but if you are gonna make the purchase you would do so better to reach for the 2.0. The new architecture is what make the EFI so user friendly.

Also, the easy efi controller will NOT drive sequential fueling. This is important because this would be the ONLY reason to spend all that money on the Dual sync distributor from fast. But if you want your port fuel injection to fire each injector timed to the intake valve, you will also need the non self tuning xfi controller that you will use a laptop with. I only point this out now because that dual sync distributor costs a lot and you can just lock out whatever msd distributor you are running and use that.
 
AutoWis... That was a great reply for giving advise. Not only did you not recommend the kit that was asked for ... you gave a good
detailed reason why it would not be a wise choice. Further... you offered an option that in your opinion would be the better choice and gave a reason why.
I believe you are going to be a valuable asset to this forum!
Thank you for your input.
 
There's smarter people on here than me. I hate electronics, but it is inevitable, I guess. Pay to play is the old saying, so I just putter around with my old stuff.
 
AutoWiz said:
No sir. I believe you would want the 30404-kit, here: https://www.summitracing.com/parts/fst-30404-kit

The first gen stuff is ok i guess, but if you are gonna make the purchase you would do so better to reach for the 2.0. The new architecture is what make the EFI so user friendly.

Also, the easy efi controller will NOT drive sequential fueling. This is important because this would be the ONLY reason to spend all that money on the Dual sync distributor from fast. But if you want your port fuel injection to fire each injector timed to the intake valve, you will also need the non self tuning xfi controller that you will use a laptop with. I only point this out now because that dual sync distributor costs a lot and you can just lock out whatever msd distributor you are running and use that.
Click to expand...
Thanks for answering! Ive been trying to find a straight-forward source of info about this stuff, and this forum is the first to actually have real answers/opinions to share.
I totally agree and understand that a full upgrade to the big 2.0 set-up would be best, I just dont have the budget for it. The first gen reto-fit kits are about all I can get it together for . Would the 302000 kit (as opposed to the 302000-6 kit) be the kit that would fit with the stealthram?
 
So the fast 302000-6 looks like the old fast kit with the newer touchscreen interface? Which looks like a half step between the first and second generation maybe? I am not so sure on the first gen stuff. I just know that the first gen worked but the second generation made it enjoyable to use and work with. The extra money is nothing in the scheme of not wanting to drive your headache vs. looking forward to every chance you get to spend with it.
 
I would rather have the 302000-6 than the 302000. Look at the screens. This is what you will see and work with. The big full color touchscreen is a lot nicer than what comes in the 302000. I just don't know what the screen will look like powered on?
 
AutoWiz said:
I would rather have the 302000-6 than the 302000. Look at the screens. This is what you will see and work with. The big full color touchscreen is a lot nicer than what comes in the 302000. I just don't know what the screen will look like powered on?
Click to expand...
I thought the difference in the two was the kind of sensors and injectors they worked with......?
 
AutoWiz said:
The extra money is nothing in the scheme of not wanting to drive your headache vs. looking forward to every chance you get to spend with it.
Click to expand...
Do you really feel the difference between the two is that drastic? I have zero experience with this stuff and you obviously do- if first gen is really that problematic, I prolly shouldnt get it. Its still "self learning", right??
 
So look at each product. But not the sensors. You do not interface with those. the controller does. So what do you care what sensors it uses? You care about the interface and software because that is what you will be working with the entire time you are set up and going with this efi system. that 4 line monochrome display or the big generous full color touchscreen is what you will try to focus your eyes on as they leave the road while you drive. Yes the gen 2 throttle body brings 8 74lb/hr fuel injectors into an 1150cfm throttle body. But that is not what you are looking for anyways. If you are buying the multiport retrofit then you are supplying your own injectors, sensors and throttle body.

I still think the 30404 will do you more right than you could ever know. And it will make you feel like you are a master of efi.
 
the 2.0 stuff asks you 5 basic questions on what it is doing and it runs your stuff like any of todays engines are expected to run.
 
AutoWiz said:
So look at each product. But not the sensors. You do not interface with those. the controller does. So what do you care what sensors it uses? You care about the interface and software because that is what you will be working with the entire time you are set up and going with this efi system. that 4 line monochrome display or the big generous full color touchscreen is what you will try to focus your eyes on as they leave the road while you drive. Yes the gen 2 throttle body brings 8 74lb/hr fuel injectors into an 1150cfm throttle body. But that is not what you are looking for anyways. If you are buying the multiport retrofit then you are supplying your own injectors, sensors and throttle body.

I still think the 30404 will do you more right than you could ever know. And it will make you feel like you are a master of efi.
Click to expand...

Huh?? I care which sensors it uses because I need it to match what I have on my car. Each of the kits offered works with certain applications and I want to make sure I order the right one.
I totally understand that the newer EZ-EFI 2.0 set-ups are the better choice, but they are also $600 more than the retro-fit kits I mentioned, and I just dont have the budget right now.
I have to replace the Accel DFI gen 7 on the car, and this seemed to be the best/easiest solution......
 
At the end of the day any sensor that reports back to a computer is going to have 3 wires, work off 0-5v and be analog. Past that we just need to apply some effort to make them behave differently if we want to. I care a lot more about the device I am manipulating and trying to look at whilst I drive. But to your credit here, once you have it dialed in you wont need to look at it whilst you drive. Godspeed and good luck. Don't forget to make a thread about the install here with a ton of pictures for us, please.
 
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