i got this old injection manifold and if anyone has something info about this it would be nice to hear. i bought this from my friend and he told me that its been build in TEXAS early 60s. when he bought it seller told him that its been on cover of hot rod magazine 63-64.
This is a 1961 cover, throttle bodies are different on this one but similar? Twin SBC with twin Potvin blowers
I beleave the unit is a Pete Jackson Fuel Injection. From memory is was around 1968 when that particular unit was featured. He drove a 1960 Ford Falcon on the street with it. If you will note the injector stacks are bolted to the base casting, and the ****erfly's are up at the top near the stack opening. It was reported that the ****erfly's being in this position improved the volumetric efficiency. I would think that there where less than fifty units made back then. My racing family ran Hilborn units from the late fifty's, and where very interested in the Jackson units when they where introduced. We ran circle track cars and hydroplanes, and I never saw a Jackson unit run in anything but drag racing. That doesn't mean they didn't run in the circle tracks. Ya, it the same Pete Jackson with the gear drive units. I was told that more money was made with the gear drives and that's the direction he went in. If where luck one of our members where part of the Pete Jackson history and could bring us up to date with some history. Johnny Sweet
I was kind of thinking that it may be a pete jackson unit myself. He ran the ****erflys higher so they wouldn't be as affected by the engine warming up. He also designed and built a stepped byp*** so you could have a mid range as well as a high range to make it more streetable.
As I mentioned in your other thread, I've seen a lot of different injectors, but never a 4 over 8 setup like that. It appears that the runner / throttle bodies were cast in halves and welded together. Somebody on here will have an old Pete Jackson ad (catalog?) with one in there, or at least know for sure who built it. Never fails.
I would try contacting Kinsler. They've seen every type of injection ever made. I'll bet you have an answer pretty quick, especially if you tell them you need some parts! http://kinsler.com/form--Contact-Us--1.html While you're on the site, read Jim Kinsler's bio. Pretty amazing!
If you look real close you will note that the castings that are the throttle bodies are one casting that had a core to separate the two p***ages. The line that looks like a polished/ground area is the line separating the cope and the drag in the sand casting molding process. The Pete Jackson castings where much easier to make than the conventional Hilborn units. Thinking back I beleave that Ralph Ridgeway when building the first tunnel rams built his units the same way. The pattern making process was easier making multiple parts, but the cost would have been higher because of all the pieces. At that time in history I was heavily invested in sand castings having a few product that I was bringing to the market place. I had forgot about the stepped byp*** he developed for the street. We didn't get into exhaust temperture gauges untill the 70's for tuning. Pete Jackson had it figured out early on. When we tuned our injection units with the exhaust temperature gauges I placed one probe in each bank of the headers as close to the head as posable. When running gas I would pill the injection to run as high as 1475 degrees just short burning a piston. When running methanol, my favorite fuel, I ran the pill so that the exhaust temperature came in at 1250. Methanol produces more power at a lower temperture. You can run methanol lean at say 1400 degrees and not burn a piston, and at the same time be down on power and not even know it. The exhaust temperture gauge will tell you where your at. Johnny Sweet
Johnny, I just don't want the OP to be led wrong... See attached photo. That sir, is a weld. Why would the areas that are machined or polished still have the discoloration line, except from different alloy fill rod? Maybe the one Icetoe has is an early prototype, not a production model...?
Johnny, we call that being on the wrong side of the fuel curve. When you are lean and think your rich. Lippy
Your correct!. I didn't get a good view of the picture. That's interesting in that the injection pictures could have been one of the first units manufactured. Later the units that I remember where made with a core. The unit shown could have been one of the prototypes. There was a problem with the castings warming up on the engines and the ****erfly shafts freezing up because of misalignment. That's where the fancy linkage came into play. It would have been interest if I could have got one of these units back then and ran it on one of my hydroplanes, or Super Modifieds. They where small blocks, and in time our engines got bigger and we ran big blocks.
I've seen that a lot when "noobs" who ran mods with carbs buy sprint cars or supers, and try jetting UP to make them richer....
Ya, I had it happen a time or two. The dam hydroplane would nose over at the top end of the straightaway just before I was ready to dance it into the turn at over 150 MPH. One time when running one of my Super Modifieds for the first time of the season I was running the wrong pill. I ran the Hilborn 150A pumps. They have -0, and -1 pumps. I was always in touch with Fuel injection Engineering and when the pumps came back after being flowed and freshened up over the Winter I mixed up the -1 with a -0. You could run either pump, but you had to have the pill correct. Thinking back the dash 1 pump used a .125" pill, and the dash 0 ran an .080". Anyways in my notes the pill size got mixed up. The engine ran OK on methanol, but coming off the turns the field would pull away from me. Not much, but one or two lengths in a straightaway. I new something wasn't rite. I had the best equipment there was, and in the past could run with the best of them regarding to power. Driving was another thing. So I was running into the turns deeper than my compe***ors, but coming off the turns they would pull away. I made it through the night and early Monday morning I was on the phone to Hilborn to go over my notes. Sure enough I had the pills mixed up, and was running lean. For some reason I didn't have the exhaust temperature gauges hooked up. It was the beginning of the season. The next week I had the correct set up and the car was like a rocket ship. The problem was from the week before with me running in deeper because of the power being down I almost wrecked driving way over my head. It was just one of life's lessons. Driving hydroplanes and Super Modified race cars back in the day was one grand adventure. There is nothing like having 600 to 800 HP to play with, and the vehical your in is built for only one thing, and that's to go fast. Johnny Sweet
I have actually been looking for one of his setups that I could afford since the mid '70s. But yes I did recently read about one in use in Hot rod. Two things that have been unobtainium for me for a long time a Pete Jackson stack injection and a pair of Enderle Barn doors. Either can be the ultimate in street injection. Here is a little known factoid, he originally built the stepped byp*** for his kids car.
hello porkn******, you mentionet that you had read about one of those setups in use. got any memorier where it might have been? isto
It is going tobe a nwere more refined set up as far as the throttle bodies are concerned, IE not welded. Never the less you can find it in the most current Hot Rod magazine. That would be January 2012. My dad was the one that clued me to the Pete Jackson setup when I was a kid. I was looking at a Hilborn Setup for a mill I was running in my '46 and he told me about the Pete Jackson setup being better for a streeter because of the ****erfly location. I am not sure that pete jackson is the only one that set them up that way, for that reason I can only suspect that your throttle bodies are pete jackson. I have to believe that he is not the only person on the planet that had the idea.
There are some pics of a production Pete Jackson injection on this thread. http://www.jalopyjournal.com/forum/showthread.php?t=114263 There are some features that are the same like bolt-on stacks and high mounted ****erflies but the Jackson has 8 individual runners so I don't think this is a Jackson unit.
.... depends on what you mean by "ultimate". Like it or not, by any practical measure EFI is better than any of these old school, mechanical, constant flow, race injection systems.
The Jalopy Journal
