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10-13-2006 11:28 PM #1
Turbo?
I've been tooling with the idea for awhile about a turbo on my el camino. I'm still working to get all of my parts finished up so that i can slide the motor together.
I guess I've got a few different options but I wanna get a good idea before i have my exhaust guy set it up.
1) Buy a new turbo kit
2) Buy a used turbo setup
3) I dunno about this one but I've heard its possible. Buy a diesel turbo and use it.
I'm pretty open as far as compression because I don't have a problem using 112 octane gasoline.
The motor that i'd be putting it on goes a little something like this:
4 bolt studded 400 SBC .030 over
Scat Cast Steel 3.5" stroke 400 main journal crank
6" 4340 Steel Rods
Probe forged & floated pistons
Cam: Doug Herbert PN: HERCCH2 Its 567"/567" lift, 242 @ .050" Solid roller
Full roller valve train
Right now I've got a set of 2.02/1.60 ground 76 cc chambered heads that came out of the El camino. Was thinking about having them shaved to bump the CR but if this motor becomes turbo powered, i might not have to.
Let me know what you guys think.
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10-14-2006 03:20 AM #2
Originally Posted by Hopper111
What is the comp. ratio of those pistons with 76 cc heads?
What is the l/s of the cam?
Another idea would be use a "blow through " style supercharger.
Check out engine builder Morris and his blower ideas and then look at the hp levels in this months "Hot Rod" magizine.
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10-14-2006 07:48 AM #3
the CR with this piston to head combo is somewhere in the neighborhood of 10.5:1 and the cam is on a 110 degree design.
I'm not really worried about the cast steel crank. I used one in an LT1 engine that we put a 9 lbs. super charger on it. It has been guessed that the engine puts out somewhere in the neighborhood of 650 HP and no problems.
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10-14-2006 09:24 AM #4
Spend a couple of bucks and call these guys and talk with them. They can provide the blow-thru carb, bonnet and if they don't have the turbos, they can lead you to the right place to buy them. Whatever you do, don't start buying diesel turbos and other junk until you talk to them....
http://www.performancecarburetors.com/PLANET EARTH, INSANE ASYLUM FOR THE UNIVERSE.
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10-14-2006 11:12 AM #5
You cannot use diesil turbos on a draw though operation, (carb in font of impeller) as the fuel will react with the seals giving a vacume and/or an oil leak. As tech says you need to do a LOT of reasearch before buying a turbo or turbo kit as it gets finiky and pernekity in a real hurry ! By this I mean reading impeler pressure maps and turbo A/R ratios."aerodynamics are for people who cant build engines"
Enzo Ferrari
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10-14-2006 05:52 PM #6
Originally Posted by Hopper111You don't know what you've got til it's gone
Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
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10-14-2006 07:17 PM #7
Turbo's are designed as a system. Just tossing a bunch of leftovers together might not be the best method to build one. The quality systems also include a timing retard module. Tube length from the turbo to the carb is important too, shorter means less turbo lag. There is also a lot of technology incorporated into the design of the impeller, vanes, and an oiling system. Done wrong, it's a really easy way to gernade an engine.Yesterday is history, tomorrow is a mystery, Live for Today!
Carroll Shelby
Learning must be difficult for those who already know it all!!!!
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10-14-2006 07:31 PM #8
Originally Posted by Dave SeversonLast edited by Matt167; 10-14-2006 at 07:35 PM.
You don't know what you've got til it's gone
Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
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10-14-2006 07:34 PM #9
Originally Posted by Matt167Yesterday is history, tomorrow is a mystery, Live for Today!
Carroll Shelby
Learning must be difficult for those who already know it all!!!!
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10-14-2006 07:43 PM #10
Originally Posted by Dave Severson
I wish there was a Turbo kit made today for 200 I6 fords. there were kits but they stopped making them around 1980 or so. AK Miller was 1 of the company's. I'm mimmiking a simple Turbo system for my 200. www.fordsix.com/forum provided me with most of the info. including modifying the Carter SBC fuel pump ( same opening size and bolt pattern ) with the Ford 6cyl pump rod, for a safe pump that takes boost refrence well. not to mention, working Turbocharged Small 6 buildups.You don't know what you've got til it's gone
Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
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10-14-2006 07:51 PM #11
Many things appear simple and easy when they are designed.... The actual assembly and operation is where the proof comes in. Can't even began to tell you how many great ideas I have had that in actual application turned out to be far from ideal. The trial and error based on a solid design is what produces working combinations, or shows their inherent flaws. It's great to experiment and try new combinations, but trust me, they never go together quite as easy or work quite as well with the first turn of the key as they should.......Yesterday is history, tomorrow is a mystery, Live for Today!
Carroll Shelby
Learning must be difficult for those who already know it all!!!!
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10-15-2006 01:18 AM #12
I'm thinking that maybe I should just spend 5-6 hundred dollars and set my car up for nitrous. I'm not seeing a way to bring my CR down to 8.5 because All of my machine work is already done. The only thing that could vary is head gasket thickness, and i don't know if i could get 2 points worth of compression out of that. But with nitrous, I can set it up on a WOT switch so that it will work when the motor needs it the most (kinda like a turbo) Plus, I won't have to spend 3000 dollars to get that extra boost that i need. Thank you guys for all your info, I really appreciate you guys keeping me from making a stupid. I should have made provisions for turbo/blower before i had all of the permanent work done just in case I decided to do it.
Btw, I'm wanting to squeeze about 100 HP worth of nitrous into this motor. I know 100 isn't really a lot but I want to have at least some kind of balance between longevity and durability. Based off of what I've told you about my motor, do you think 100HP shot is realistic? Could it go more w/o hurting it? Is 100HP shot too much? I tried to pick a camshaft that would be ground thundering with some kind of boost on it (whether it be nitrous, blower, or turbo)
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10-15-2006 03:32 AM #13
Originally Posted by Dave Severson
Most of the problems that occour with budget turbocharging is too big or small of a Turbo, putting that Diesel Turbo on a 4cyl, that 2.2 L Mitsu turbo on a 350. it can be done saftly and effectively if 1 learns to read a compressor map, because that tells you if it's correctly sized for the engine.You don't know what you've got til it's gone
Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
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10-15-2006 06:03 AM #14
then I'm sure it will be just perfect....Yesterday is history, tomorrow is a mystery, Live for Today!
Carroll Shelby
Learning must be difficult for those who already know it all!!!!
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10-15-2006 04:01 PM #15
Originally Posted by Dave SeversonLast edited by Matt167; 10-15-2006 at 04:08 PM.
You don't know what you've got til it's gone
Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
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Welcome to CHR. I think that you need to hook up your vacuum advance. At part throttle when cruising you have less air and fuel in each cylinder, and the air-fuel mixture is not as densely packed...
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