Anyone, prefer near Minster, OH 45865, have any experience in setting up and running a Hilborn or Enderle mechanical fuel injection for a SBC for limited street use?
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Hilborn or Enderle Fuel Injection Set-Up
Dennis Bornhorst
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Anyone, prefer near Minster, OH 45865, have any experience in setting up and running a Hilborn or Enderle mechanical fuel injection for a SBC for limited street use?
Thanks
Thanks
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Best advice
Would be to find a sprint car racer. Probably have more experience than anyone around. Make sure your unit has a a proper bore diameter for the cubic inch size of your motor what cubic inch is your motor, Also need to no your fuel gas or alky. Most newer units have bigger bores 2 7/16 while so early units are 2 or 2 1/16. Fuel type determines what nozzle size is needed.
Would be to find a sprint car racer. Probably have more experience than anyone around. Make sure your unit has a a proper bore diameter for the cubic inch size of your motor what cubic inch is your motor, Also need to no your fuel gas or alky. Most newer units have bigger bores 2 7/16 while so early units are 2 or 2 1/16. Fuel type determines what nozzle size is needed.
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Ummm , do this Dennis , google Augie Delgado , then go to Super Chevy .
I was fascinated with this idea a few years back and even scored a complete
Hilborn Mech setup but never used it and now likely never will . Find a very
detailed article about how to run a Hilborn on the street , with all pros and
cons , very interesting reading for anyone wanting to run stacks or not : )
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Ah shucks , I looked at the site I suggested for you and it didn't go into
any of the details of the setup and how he made it work on the street , I won't
take more time looking but you have the idea and a lead , it was a great detailed account ( even jet sizes !! ) and even a road test , look , you will find it : )
( build it , they will come !!! ) Good luck Dennis : )
Ran sprint cars, 410's and 360's for ten years. Do not try and make mechanical FI work on the street. MFI has no way of compensating for the varied RPM's of street driving. You can't put enough by-passes on it (low and high speed bleeds) to account for street driving.
A good winged sprint car operates in an RPM range between 6500 (corners) and the low to mid 8000's at the end of the straight. That you can tune for. Mechanical fuel pumps are "dumb". Most typically they are set up to run at camshaft speed and the flow is linear. A fuel curve (demand) is not linear.... engines use proportionately less fuel at higher RPM's. The dumb pump just keeps pumping away and the engine will be dead-rich.
Lastly, MFI can't automatically adjust to changes in atmospheric conditions......if it gets hot and the engine just keeps getting richer and richer.
The reasons go on and on and some guy will get on here and say, "well I did it for Years.....never a problem". Call Engler or Kinsler. They are the best and will advise you to "electrify" one of their units if you are dead-set on the look of stack injection.
A good winged sprint car operates in an RPM range between 6500 (corners) and the low to mid 8000's at the end of the straight. That you can tune for. Mechanical fuel pumps are "dumb". Most typically they are set up to run at camshaft speed and the flow is linear. A fuel curve (demand) is not linear.... engines use proportionately less fuel at higher RPM's. The dumb pump just keeps pumping away and the engine will be dead-rich.
Lastly, MFI can't automatically adjust to changes in atmospheric conditions......if it gets hot and the engine just keeps getting richer and richer.
The reasons go on and on and some guy will get on here and say, "well I did it for Years.....never a problem". Call Engler or Kinsler. They are the best and will advise you to "electrify" one of their units if you are dead-set on the look of stack injection.
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I think your missing the point Alf , no one would say trying to use Mech Injection on the street is the optimum deal , the thread originator was just inquiring if it could be done and it can actually , it can successfully can be done , this fellow Augie Delgado made it work pretty good , wish I could find the whole article again , at the least it's a very interesting read ~~~
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Mechanical Fuel Injection - Breakin' The Rules - Hot Rod Network
Dennis , this is the best I can manage so far , I'm not so good at this
sort of thing , above is the article from Hot Rod from a few years back .
Maybe you can Google the title and get it to come up , I think you will
enjoy reading it if you are successful : )
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Here's the article:
http://www.hotrod.com/articles/hrdp-1201-mechanical-fuel-injection-breakin-the-rules/
But he never gets into any particulars of how he makes it work for the street? Guessing he's making money possibly, and not wanting to share his knowledge to others.
Systems I've seen that worked were reworked units that had electronic injection adapted to them to make them work on the street, but retain the look. Considering how cheap I've seen some of the Hilborn and Enderle systems at swap meets, I've been tempted. But the cost to adapt them is in the $2200 range. Add that to the costs I see of around $700 for a SBC injector setup, and it's more than my tight budget wants to do!
http://www.hotrod.com/articles/hrdp-1201-mechanical-fuel-injection-breakin-the-rules/
But he never gets into any particulars of how he makes it work for the street? Guessing he's making money possibly, and not wanting to share his knowledge to others.
Systems I've seen that worked were reworked units that had electronic injection adapted to them to make them work on the street, but retain the look. Considering how cheap I've seen some of the Hilborn and Enderle systems at swap meets, I've been tempted. But the cost to adapt them is in the $2200 range. Add that to the costs I see of around $700 for a SBC injector setup, and it's more than my tight budget wants to do!
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A long time ago there was an older guy (early 30's lol) in my town that ran alot of radical stuff that "couldn't be done" including a set of Crower stacks (with a mag too). He had one of those 'dial a pill' deals on his dash with the fuel lines inside the car. He forced it to work somehow, and the older yet know-it-alls would go around shaking their heads.
He ran that thing like that for about a year, but changed over to a tunnel ram afterwards. Sure was cool hearing him cruise town with that injector surge though.
I'm sure that today's 'all knowing' would bad mouth him to no end over it, but if it was still around it'd sure be funny to see him cruise by them. LOL
He ran that thing like that for about a year, but changed over to a tunnel ram afterwards. Sure was cool hearing him cruise town with that injector surge though.
I'm sure that today's 'all knowing' would bad mouth him to no end over it, but if it was still around it'd sure be funny to see him cruise by them. LOL
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When I was in high school in the 60's there was an "older" guy here running a Hilborn on the street too! He would always come around to our cruise spots, and word was he was a serious street racer. Never saw him take off without getting out and giving his engine a shot of fuel into the injectors before he fired it. Then he always left in a hurry, but I think that was just part of how the injectors wanted to feed the motor! His car was a very cool Henry J with a well built SBC, but nobody seemed to know particulars, and he wouldn't say either.
Stuff like that really impressed the heck out of me at that age!
Stuff like that really impressed the heck out of me at that age!
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Having a blown street car myself, I still think its funny when some guys richen their mixture screws on the carbs to cause a rump-----rump-----rump idle. My son says its called a "Fairgrounds Idle". I call it pretty dumb!:sign0020:
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Didn't say it was a good thing, but it did sound cool when it passed by our towns Foster Freeze where all the hotrod guys in my town would hang out.
The point is that if a guy has the guts to try it, and is talented enough to wring out at least a few of the bugs, it can be done for a while at least.
To be honest it is however frowned upon by those that build them.
http://hilborninjection.com/mechanical-tech-support/
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Was riding with a buddy in his blown Willys which is properly tuned. Coming into the car show I noticed his engine began surging. Looked down and he had one foot on the gas, and one on the brake. Playing with the throttle to make the engine surge so everyone would think it was cool! I couldn't help but laugh and poke fun at him for being a poser!
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Damn! I thought you was going to post that blue 56 called "Blew By You".
Never seen this thing before.
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Would love to run stacks !
But I'd have to downsize the fleet.....and that's not going to happen for a while.
What's the setup on the giveaway car The all American , thought it was a self learning of sort....... just curious seems like it had a 7 k sticker price
Was it something from Holley?
http://hilborninjection.com/product/ls-series-chevy-electronic-fuel-injector/?mode=list
I'm in Ohio but unfortunately no knowledge yet
Someday I hope!
But I'd have to downsize the fleet.....and that's not going to happen for a while.
What's the setup on the giveaway car The all American , thought it was a self learning of sort....... just curious seems like it had a 7 k sticker price
Was it something from Holley?
http://hilborninjection.com/product/ls-series-chevy-electronic-fuel-injector/?mode=list
I'm in Ohio but unfortunately no knowledge yet
Someday I hope!
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Not sure of the maker, but it is not mechanical fuel injection like old school Hilborn and Enderle. It is electronic injection, so it has a computer to control the injectors.
Hilborn will convert their old school intakes to electronic for a lot less than the system you linked above! Other companies do it also, and generally around $2200 or so.
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