Holley Fuel Injection

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66fj40x2

66fj40x2

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Montgomery Co. TEXAS
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There was an article in Trails some time ago about 2F with a Holley ProJecttion setup for a j*@p 4.2L. I can't find the article now. Does anyone know who is or was running this setup and if they have had any problems with it? Just shopping right now but it seems easier then a TBI.
 
66-
I'm running a Holley Pro-Jection 2D TBI on my SBC in a 40 and I have mixed feelings. It ran GREAT for a few years w/o 1 problem. Turnkey startup, choke that worked great, never stalled or burped, excellent on hills and uneven terrain and as a trip rig to Mex or wherever. In the last year and a half (and less than 2500 miles) I've replaced the throttle body, the computer, and the new TPS that was on the new throttle body. It is so sensitive to voltage fluctuations that it has intermittent problems I have become frustrated with. (I suppose they aren't very frequent, but they seem to be when you're as anal as I am). I am SERIOUSLY considering an upgrade to TPI. With that said, I have a buddy that hasn't had 1 problem in MANY years. As for use on an F, I can't say. To do it all over again and replace the Quadrajet like before the answer is... In an instant.
Dom
 
66fj40 said:
Just shopping right now but it seems easier then a TBI.
Click to expand...



NOTHING in this arena is plug and play, or set and forget...



You WILL be required to modify something on any fuel control system that you decide to use, beyond stock.


Good luck!


-Steve
 
The Holley Projection kit for the 4.2l j**p was omitted from the 2005 Holley Catalog which suggests that it has been discontinued. I have also been trying to find one but gave up and decided to go with a nonsmog rebuild on tha Aisen.
 
I have seen advertisements in Mags such as FOURWHEELER and as I recall they were OEM equipment from chrysler. I could be wrong though, its been a while since I last seen them advertised.
 
I've been looking in to this a little and it seems like there are several options and none of them jump out.

These include:
1. aftermarket and adapted oem throttle body systems. Some of the advantages of efi, some of the disadvantages of carb. (wet intake manifold causes need to tune to leanest cylinder)
2. adapting oem port injection system (one injector for each cylinder). This type of system, because the manifold only distributes air and not air+fuel allows the use of tuned intake manifolds that allow significant increases in low end torque. The problem is the oem systems are not particularly open (no documentation). Some have been hacked. The advantage is that the oem has the budget to allow for testing and development of the systems. That's why you see very few failures in the modern efi's.
3. aftermarket race systems. These could be adapted to run a 2f under great control. It looks like it is not a bolt on proposition though and involves a fairly serious engineering effort. Cost, maybe 3-5 thousand.
 
I worked with a friend yesterday tuning his Holley FI... for the past 6 months he could not get it to run right on a 69 Firebird.
The fuel maps they sent were worthless... overall the thing ran way to rich. I believe that is intentional from the factory.. just like carbs.

Finally after not being able to get it running at optimum... 12.6 to 1 AFR (suggested AFR for max for power) not economy.. he purchased an Innovate AFR monitor with the data logger and wide band 02 senosor.


http://search.ebay.com/innovate_W0QQfkrZ1QQfromZR8

after driving around doing a real-time data log.. he built his own fuel map and got it spot on.
I ran home and got my V8 cruiser and welded in a bung for the wide band 02 sensor and could not wait to do the same for my rig. I am carbureted btw.
I did not log data but just did a ride around monitoring my Air fuel ratio and vacuum.
At idle I am at 12.3 to 1
Under acceleration I am at 11.2 to 1
At Cruise I am optimum...14.5-15.2 ... I will lean out the mid range acceleration by 20% and would be able to get it right on.
I post this for all those that spend sop much time and hassle on carbs. This is a very good tool for fuel analysis.


Back to the port EFI.. here is a guy that did it and used megasuirt ..after all said and done he would use a TBI if he were to do it over.

http://www.oatsoda.com/fuel_injection/
If you ever run infrared heat gun on your exhaust outlets ( I use 2f with header) you will notice a huge difference in heat in each exhaust tube.. some were 400* , some were 900*
, you could tell they were definitely rich and lean cylinders because of manifold design and wet intake w/carb.

If I were going to do it on a 2F .. I would use the certain bosch injectors that do not require a fuel rail. They came on early BMW.. it would be a simpler install .
 
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Try a call to Turbo City-their system is on my 2F-modified from a jeep kit of course. Victor at Turbo City was not bashful about tweaking their kit to fit a cruiser. V6 Pontiac distributor with the shaft of a cruiser so the dist can be controlled by the system and still have the proper "innards" for the 2F drive. Throttle body is a GM. If I remember correctly, the knock sensor was reading the solid lifters as knock-took a few tries to get the chip correct. Anyhow, its been 5 years or so and no big probs. Maybe they don't even produce those kits anymore.
 
nasty habit said:
Try a call to Turbo City...
Click to expand...
Is this the place? They list a TLC system but it doesn't say for which motor. The Holley kit I remember seeing was a lot less then that. I've got a couple buddies running the Holley ProJection on V8's and they don't really seem to be having problems with them. The one thing they have said consistantly is "get it set and don't mess with again". I wish I knew what I need with that issue of Trails.

http://www.turbocity.com/default.php?cPath=16&osCsid=e60bc61e240719a2304c0dbb5844b0cd

http://www.turbocity.com/product_info.php?cPath=16_60&products_id=511
 
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I emailed turbo city and they responded by notifying me that this is a throttle body fuel system, not the multi-port system we were hoping for.
 
Downey also has an adapter for GM TBI on a 2F but I don't see where you can buy it seperately without the whole kit. When using the GM ECU's, you will need to reprogram it to get it to work. Other's have done this.
 
I just got an email from Wes Hanson who had the first thread on POR...I'll try to copy to here just for information. I'm still really torn between the Holley and the built-it-yourself concept. I think either would be great but ~$500 for the GM set-up and ~$700 for the Holley ($900 - $1000 for the closed system).....what to do, what to do.

"Yep – I’m still using it. It’s held up well over the years. Mount the CPU someplace safe, and mount it good – I used some double sided tape at first, that didn’t last. Now I have it screwed into the firewall. The only real modification you have to do is re-drill two holes on the manifold adapter to get it to fit the cruiser intake manifold. I tore out all the smog equip. and vacuum system and it runs great. I would also suggest opting for the O2 sensor if you can afford it. I couldn’t and I have to tweak the injection every once in a while if I change altitudes on the trail. Plus or Minus 1000 ft. makes a difference in how it runs. Over-all it’s one of the best mods I’ve done, just behind 4-linking the rear and full-hydro steering. Carb’s SUCK!!"
 
I ran the Holley Pro-Jection 2D 650 on a modified Offenhauser 4bbl intake for a while. It was closed loop. I couldn't get to run right at all. WAY rich! Took it all off in June, and still haven't figured out if it was the system or just tuning. Gonna try it out on a GM 4.3v6 next. Not for the cruiser though.
 
I would say running rich has always been my biggest problem too (with the 2D). Once tuned properly on a Dyno at a very good high performance shop ($$$$) it has run much better. I bought the o2 sensor with intentions of running that too and the tech who tuned mine (after many people had failed) said he thought it was a waste. For those who have significant elevation changes it may be the way to go. I have contemplated throwing it on just to see. Dom
 
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