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By RB - 14 Years Ago
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I finally finished this project. The injector was adapted from a current scrub offering. I hacked it apart and reconfigured it on a fabricated manifold.. It's the engine that was in Jerry's dragster, 11.5 compression 435 horse with a 750 on a Blue Thunder intake. I am running it on E-85 and it will be on the dyno wed for test and tune
http://www.youtube.com/watch?v=j_Hpz3qPlpI
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By Barry L - 14 Years Ago
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Hi Royce, Sorry, no luck with that link....I'll just have to drive down there this Wed and see it live. Barry L.
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By glrbird - 14 Years Ago
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Royce I love it, hope you will do a write up on how you put this thing together. Can't wait to see your dyno sheet.
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By bird55 - 14 Years Ago
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Sweet!. Royce I can't tell is that an efi setup. Must have been a lot of work.
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By RumbleFish - 14 Years Ago
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Simpl"Y" perfect!!! Love it!
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By Glen Henderson - 14 Years Ago
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RB, I love it, I want it! Please post up pic's of the intake.
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By LordMrFord - 14 Years Ago
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So Cool!
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By glrbird - 14 Years Ago
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Royce I was wondering why you are venting the crankcase through the fuel pump opening (Not wanting to cut your valvecovers), also are there any plans in putting this in some type of race car?
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By yalincoln - 14 Years Ago
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hey Royce, sweet, very sweet. do you have any updates on the Thumper, sorry but it's been a while since i talked to you, thanks, wayne.
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By mctim64 - 14 Years Ago
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That is too Cool! I need a set up like that on Elwood. 
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By The Master Cylinder - 14 Years Ago
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Fantastic Job, sounds awesome.
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By yblock32deuce - 14 Years Ago
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been a long time since i have seen anything as neat as that. love to have that in my 32 cpe.
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By RB - 14 Years Ago
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Al, It's mechanical.. As someone once said mechanical injection is just a controlled leak
Glen I will try to get a better shot of the intake.. But it's pretty well buried under there.. Nothing very sophisticated
Gary. The vent on the fuel pump is so I don't have to cut original valve covers..
Not sure what I will put it in.. it's been a feasability excercise so far
Wayne. Thumper Should be at Columbus this year
Tim Maybe we can work something out..LOL. Except that your new engine will have more power anyway
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By Ted - 14 Years Ago
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Royce. Thanks for sharing. Also got a kick out of the white stuff sitting just outside your cracked open door.
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By 57FordPU - 14 Years Ago
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Great job Royce, that is a new face on an old friend.
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By RB - 14 Years Ago
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Glen, Here are a couple of shots of the intake and injector
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By pegleg - 14 Years Ago
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Very cool Royce. Lot bigger butterflies than the Hilborn Y setup?
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By jepito - 14 Years Ago
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well crap, you beat me to it lol. What nozzles are you using? I was planning on running deflector tips. Since 1 runner goes left and 1 right, 1 sprays down the port and the other into the runner wall.
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By HT32BSX115 - 14 Years Ago
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VERY COOL!
11.5:1 compression ratio is pretty high.
You probably will be limited to E-85 or propane! It would probably even detonate on 115/145 AVGAS wouldn't it?
I just LOVED the sound of it running!!!
Cheers,
Rick
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By RB - 14 Years Ago
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Jepito, Your setup is so much prettier than mine. I found that 7AS nozzles and an 80 pill worked best for me.
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By RB - 14 Years Ago
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Rick, I ran E-85 which is acutally E-70 this time of year, with a knock sensor with absolutely no sign of detonation.. The big cam bleeds a lot of compression down low. I think this combination would run on about 100 octane easily maybe 93 with backed off timing
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By jepito - 14 Years Ago
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what size pump?
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By RB - 14 Years Ago
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PG 150-0
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By HT32BSX115 - 14 Years Ago
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RB (3/3/2011)
Rick, I ran E-85 which is acutally E-70 this time of year, with a knock sensor with absolutely no sign of detonation.. The big cam bleeds a lot of compression down low. I think this combination would run on about 100 octane easily maybe 93 with backed off timing
Great! You cannot get 115/145 anymore but you can sure get 100LL avgas (2ml TEL/gal)....just tell them it's for your "homebuilt" airplane!!
Have you considered (Mummerts) aluminum heads for additional detonation protection?
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By grovedawg - 14 Years Ago
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Just found this post and I'm so glad I did! RAD engine! Thanks for sharing.
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