Hello, I have a Scott super slot and pump I'd like to use on a early hemi with a blower. Information is pretty hard to come by on these things since they are out of production. So I'd like to find someone that still uses one or has some experience setting one up. The slot I have doesn't have the nitro line on the p***enger side so I think it was originally setup for gas. Thanks
It's going on a blown early hemi in my 3w coupe. It'll be street driven with a manual transmission, and I'd like to use e85 fuel. I'm not looking for new car drivability but I'd like to get some info as far as part throttle drivability, tuning etc. I've read about everything I can find about Scott injection and they seem like they would be better than a hilborn or enderle setup. I know the basics about startup and location of the pump for priming. I know efi would be a better choice for drivability but I don't want all the electronics that go with it uglying up my motor. And most of all, you can't get a better looking setup than a slot on top of a blower with a delta drive on an early hemi.
Drag race style injectors on the street are usually not a very good idea as they are designed to work at idle (with a small amount of air leaking around the ****erfly/s) or at full throttle. Transition between those two places is usually not great as the barrel valve has a limited capacity to control fuel volume between those two extremes. Running E85 will help as the increased volume will widen the tuning window somewhat. The fact that the Scott unit puts the ****erflies right above the rotors is good in a race application as it speeds throttle response but for the street a "hat" (bugcatcher etc) injector is better as there is some basically static air volume in the hat to cushion the transition from idle as the ****erflies open. The other problem with the Scott is that the single ****erfly opens up a lot of air space very quickly compared with multiple ****erfly hats. From personal experience I know that the throttle modulation on a Hilborn "Shotgun" hat is a lot harder to control than with a bug or birdcatcher with more (and smaller) ****erflies. The Crower style 8 hole is even better in that regard. With all that said I am sure that someone will jump in with stories about how well their package runs. Roo
Hi Roo! So you are going to run the crank driven pump on the street? I think I have a new lovejoy coupler for one. Trying to run something that has one nozzle on the street and a blower may cause problems. Yours has the idle screw? Roo remember the "Black death" caused by that one nozzle? Don't know if the ramp on the barrel valve would be even close for the street. All these things can be made to work I guess but... They sure look good. Lippy
Yes mine has an idle screw as you can see in the pictures. Send me a picture of the coupler if you're wanting to get rid of it. Mine came with brackets and pulleys to run it on the side of the motor with a belt. I'd like to find a little more information on the one I have. I've never seen one with only 1 nozzle before. Usually they have one on each side like the one in the ad picture. I read that the one on the p***enger side was for added fuel when running nitro. So I'm ***uming this one was originally setup for gas so maybe the barrel valve is different. Plus mine only says Scott instead of M/T Scott.
Mark the coupler is a standard lovejoy coupler the right size for the pump shaft. Grainger or any supply place has em cheap. Lippy
If its a street car what do you plan on using for a air filter? Not much is going to fit inside the scoop.
I wonder how a spacer plate between the injector body and the blower with 4 small nozzles would work. We installed one under an Enderle "Showerhead" and it worked very well. You could always call up Mel Gibson, his ran just fine !
The Shelby Super Snake car that Prudhomme just re-restored has a "Showerhead" hat with a nozzle plate underneath it just as it did back in the day. He was looking for the showerhead hat at last year's CHRR and I thought that I remembered the car having 8 nozzles. After searching and getting a lot of photos that showed the motor from the right I finally found some left side pictures and sure enough there it was--showerhead with a nozzle plate. Mel also had a clutch in his blower drive Marty. Roo
I watched the first mad max movie at work last night and I noticed a few things I hadn't before. I knew the blower was fake with the clutch driven pulley etc. I never noticed that there wasn't even a fuel line ran to the injector hat and it didn't have any linkage as well. Also when he revved the engine up when he first saw the car in the garage, he reached under the blower to do it. Anyways, as far as a filter goes I'll probably just put a screen gasket under the hat.
Hey Mark, I hope you're successful getting your set-up streetable. Mel Scott " Scott Injection" was my uncle. Wish he were still around, he would have been glad to help you make it happen. I still have a couple Slot's in my collection both are pre MT castings like yours. --- Dean
As an aside to this thread does anybody have a pic showing the Scott crankshaft driven fuel pump, especially showing how it actually mounted and was driven by the crank..........I'll rephrase this question.......what I am really after is the mounting setup as I'm building a model of Oz's Graham Withers 1st fueler from around 1968 and it used a Scott setup but can't find any clear pics of the crank/front pulley/pump area.......at least clear enough to allow me to replicate it......lol.......I have a copy of the Australian Hot Rodding Review, Sept 1968 with the car on the cover and was hoping to find a clear pic showing the mounting..........thanks....Andy Douglas
Andy, will this work for you? Taken by me at Brooksfield in about 1967/8. I also just got a shipment of vintage Aussie hot rod magazines from a friend in Oz and there may be some more photos somewhere in that collection. PM me with your e mail address and I will send you the file of the original scan. Roo
Hey Dean, I had a Ed Pink 331 in my gas dragster with a Scott slot on it. I needed a new pump, Mel said, "I think I have a few castings left in the garage" . He built me a pump and mailed it to me for $65 . What a great guy. He said he had been working on some government project in argentina or something. Lippy
Rooman............many thanks for the reply.......I actually have a copy of that pic.......WOW...YOU took it!..........the version of the car I am doing is essentially the one that was on the cover of sept 1968 Australian Hot Rodding Review, complete with the dent in the right front zoomie tube...lol........re the scott pump you can see what appears to be a couple of drilled brackets beside the pump and in pics I have seen of other cars using this pump they seem to have a sheet steel/alloy bracket hanging down fron the cam drive snout..........am not trying to be a rivet counter but would just like to get it as correct as I can.........also trying to confirm the wheelbase of the car.....I've even spoke to Graham Withers about 15yrs ago when I started this model project but he couldn't recollect the exact wheelbase.......I have a good side on pic that I extrapolated a wheelbase figure of 160" using the rear rims at 16"........anyway thanks for taking the time to reply......I hope to have the model finished soon.....lol...Andyd
I looked on Grainger and can't seem to find the coupler. I'm building a Howards chain drive Hemi with a Scott injector.
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