Twin Eatons part 3
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Joined: Jun 2000
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From: the garage
Car: 84 SVO
Engine: Volvo headed 2.3T
Transmission: WCT5
Axle/Gears: 8.8" 3.73
Twin Eatons part 3
Latest installment of the project.
Have modified the supercharger top, and drivers side ducting to the intercooler. Also added an idler pulley between the blower and the power steering pulley to get more belt wrap. Also the blow off valve can be seen under the duct to the TB. Little sheetmetal work to finish off the radiator.
Have modified the supercharger top, and drivers side ducting to the intercooler. Also added an idler pulley between the blower and the power steering pulley to get more belt wrap. Also the blow off valve can be seen under the duct to the TB. Little sheetmetal work to finish off the radiator.
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From: In the corner of my mind!
Car: 1989 TTA #1240
Engine: 3.8 SFI turbo
Transmission: 2004r
Axle/Gears: 3.27
I hope you have stock in a tire co. That thing is gonna produce so much tq. that your gonna get twisted into a pretzel. Damn good work!!!!!!!!!!!!!!!!!!!!!!!
Thread Starter
Supreme Member
Joined: Jun 2000
Posts: 1,612
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From: the garage
Car: 84 SVO
Engine: Volvo headed 2.3T
Transmission: WCT5
Axle/Gears: 8.8" 3.73
Originally posted by Guido
Kick ***!! We going to see this thing RUN anytime soon!?
Kick ***!! We going to see this thing RUN anytime soon!?

Thread Starter
Supreme Member
Joined: Jun 2000
Posts: 1,612
Likes: 0
From: the garage
Car: 84 SVO
Engine: Volvo headed 2.3T
Transmission: WCT5
Axle/Gears: 8.8" 3.73
Originally posted by PETE
I hope you have stock in a tire co. That thing is gonna produce so much tq. that your gonna get twisted into a pretzel. Damn good work!!!!!!!!!!!!!!!!!!!!!!!
I hope you have stock in a tire co. That thing is gonna produce so much tq. that your gonna get twisted into a pretzel. Damn good work!!!!!!!!!!!!!!!!!!!!!!!
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From: In the corner of my mind!
Car: 1989 TTA #1240
Engine: 3.8 SFI turbo
Transmission: 2004r
Axle/Gears: 3.27
Ever think about retarding the cam a few degrees and lowering the rear gear a little. That'll give you a little punch up top with the intake and runners siamesed. With that frame it shouldn't be that bad(straight as an arrow). I would definately look into that and maybe a small 50 shot when it hits 2nd(it'll cool the intake charge and give back that lunge you'll lose off the line).......
Again! DAMN GOOD WORK!!!!!!!!!!!
Again! DAMN GOOD WORK!!!!!!!!!!!
Last edited by PETE; Apr 16, 2006 at 07:39 PM.
Thread Starter
Supreme Member
Joined: Jun 2000
Posts: 1,612
Likes: 0
From: the garage
Car: 84 SVO
Engine: Volvo headed 2.3T
Transmission: WCT5
Axle/Gears: 8.8" 3.73
Both pipes from the supercharger to the intercoolers are finished and painted. Started working on the filter box, cold air intake system.
Bob
Hey Bob,
My eaton project is coming along nicely, I've almost got the eaton mounted, I'm going to work on the belt system next then off to plumbing.
Anyway. I had a question about what type of pulley are you using. My Eaton (same model as you) has about approx 2 inch wide (not diameter).
I would like a pulley that can use the same belt as the rest of the car.
Also your eaton's have keyed noses right? if so do you need a special puller for them like the 3800's? My eaton is keyed and I don't want do damage the nose by pulling it off the wrong way.
My eaton project is coming along nicely, I've almost got the eaton mounted, I'm going to work on the belt system next then off to plumbing.
Anyway. I had a question about what type of pulley are you using. My Eaton (same model as you) has about approx 2 inch wide (not diameter).
I would like a pulley that can use the same belt as the rest of the car.
Also your eaton's have keyed noses right? if so do you need a special puller for them like the 3800's? My eaton is keyed and I don't want do damage the nose by pulling it off the wrong way.
Thread Starter
Supreme Member
Joined: Jun 2000
Posts: 1,612
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From: the garage
Car: 84 SVO
Engine: Volvo headed 2.3T
Transmission: WCT5
Axle/Gears: 8.8" 3.73
Re: Bob
My eaton project is coming along nicely, I've almost got the eaton mounted, I'm going to work on the belt system next then off to plumbing.
< Thats great!
Anyway. I had a question about what type of pulley are you using. My Eaton (same model as you) has about approx 2 inch wide (not diameter).
< correct, its an 8 rib pulley. The GM belt is 6 rib, I am using the 8 rib pulleys for now. GM, Eatons IIRC have 6 rib pullys but are larger diameter.
I would like a pulley that can use the same belt as the rest of the car.
< This is what I have done. Current belt is 101 inches (101K6)
Also your eaton's have keyed noses right? if so do you need a special puller for them like the 3800's? My eaton is keyed and I don't want do damage the nose by pulling it off the wrong way.
< Mines keyed. The pulley should be removed with a puller. Currently working on a drawing/fabricating a puller.
< Thats great!
Anyway. I had a question about what type of pulley are you using. My Eaton (same model as you) has about approx 2 inch wide (not diameter).
< correct, its an 8 rib pulley. The GM belt is 6 rib, I am using the 8 rib pulleys for now. GM, Eatons IIRC have 6 rib pullys but are larger diameter.
I would like a pulley that can use the same belt as the rest of the car.
< This is what I have done. Current belt is 101 inches (101K6)
Also your eaton's have keyed noses right? if so do you need a special puller for them like the 3800's? My eaton is keyed and I don't want do damage the nose by pulling it off the wrong way.
< Mines keyed. The pulley should be removed with a puller. Currently working on a drawing/fabricating a puller.
Thanks Bob,
I had the eaton bolted to the car on a mock up bracket and the hood shut yesterday, all is well. hehe
I've got a great woodworking shop so i made the mockup bracket out of wood. I'm trying now having it reproduced with .125 and .250 aluminum by someone who has better skills in metalworking than me.
I can't believe its fitting (93 Formula LT1), I just hope its enough for the car. Hopefully it will make at least 4psi.
I had the eaton bolted to the car on a mock up bracket and the hood shut yesterday, all is well. hehe
I've got a great woodworking shop so i made the mockup bracket out of wood. I'm trying now having it reproduced with .125 and .250 aluminum by someone who has better skills in metalworking than me.
I can't believe its fitting (93 Formula LT1), I just hope its enough for the car. Hopefully it will make at least 4psi.
Thread Starter
Supreme Member
Joined: Jun 2000
Posts: 1,612
Likes: 0
From: the garage
Car: 84 SVO
Engine: Volvo headed 2.3T
Transmission: WCT5
Axle/Gears: 8.8" 3.73
I had the eaton bolted to the car on a mock up bracket and the hood shut yesterday, all is well. hehe
< You remembered to leave room for the top...
I've got a great woodworking shop so i made the mockup bracket out of wood. I'm trying now having it reproduced with .125 and .250 aluminum by someone who has better skills in metalworking than me.
< Mine are .25 with bracing.
I can't believe its fitting (93 Formula LT1), I just hope its enough for the car. Hopefully it will make at least 4psi.
< Probibaly.
The hood scoops are in and the second top came today. Colder than %$#@ and out of fuel for the torpedo. Figures.. lol cheers, Bob
< You remembered to leave room for the top...

I've got a great woodworking shop so i made the mockup bracket out of wood. I'm trying now having it reproduced with .125 and .250 aluminum by someone who has better skills in metalworking than me.
< Mine are .25 with bracing.
I can't believe its fitting (93 Formula LT1), I just hope its enough for the car. Hopefully it will make at least 4psi.
< Probibaly.
The hood scoops are in and the second top came today. Colder than %$#@ and out of fuel for the torpedo. Figures.. lol cheers, Bob
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Joined: Jan 2001
Posts: 908
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From: South NJ
Car: 1988 Mustang GT
Engine: 302
Transmission: T5
i'm seriously thinking of doing this... how exactly did you mount it... somehow to the valvecover studs? I see you turned them upside down and made a 'bonnet' of some sorts to gather the compressed air... how much boost can you pull out of one of those and how much are they where can i get one
Thread Starter
Supreme Member
Joined: Jun 2000
Posts: 1,612
Likes: 0
From: the garage
Car: 84 SVO
Engine: Volvo headed 2.3T
Transmission: WCT5
Axle/Gears: 8.8" 3.73
i'm seriously thinking of doing this... how exactly did you mount it... somehow to the valvecover studs?
< No. It's bolted to the accessory bracket in the front and 2 braces in the rear, one to the intake, the other to the header flange.
I see you turned them upside down and made a 'bonnet' of some sorts to gather the compressed air...
< Actually their right side up.
how much boost can you pull out of one of those and how much are they where can i get one
< With some porting of the case, and overdriving the blower, (search 83 Crossfire TA) close to 10 pounds of boost on a 302 FI.
You can pick em up off EBay, or the SCCOA site. I picked up both for about 250.00 each shipped.
< No. It's bolted to the accessory bracket in the front and 2 braces in the rear, one to the intake, the other to the header flange.
I see you turned them upside down and made a 'bonnet' of some sorts to gather the compressed air...
< Actually their right side up.
how much boost can you pull out of one of those and how much are they where can i get one
< With some porting of the case, and overdriving the blower, (search 83 Crossfire TA) close to 10 pounds of boost on a 302 FI.
You can pick em up off EBay, or the SCCOA site. I picked up both for about 250.00 each shipped.
Joined: Jun 2001
Posts: 8,028
Likes: 93
From: DC Metro Area
Car: 87TA 87Form 71Mach1 93FleetWB 04Cum
Looking good Saturn5!
I'm assuming that all that ducting is painted mild steel? do you have any closups of your outlet bonnets, they look better then the little aluminum doghouse that my brother is using...
I'm assuming that all that ducting is painted mild steel? do you have any closups of your outlet bonnets, they look better then the little aluminum doghouse that my brother is using...
TGO Supporter


Joined: Jul 2001
Posts: 4,991
Likes: 1
From: Cheyenne, Wyoming
Car: 1992 B4C 1LE
Engine: Proaction 412, Accel singleplane
Transmission: built 700R4 w/custom converter
Axle/Gears: stock w/later 4th gen torsen pos
holy crap will the hood close? would you be better off with dual filters for hood clearance?
Thread Starter
Supreme Member
Joined: Jun 2000
Posts: 1,612
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From: the garage
Car: 84 SVO
Engine: Volvo headed 2.3T
Transmission: WCT5
Axle/Gears: 8.8" 3.73
Originally posted by 83 Crossfire TA
Looking good Saturn5!
I'm assuming that all that ducting is painted mild steel? do you have any closups of your outlet bonnets, they look better then the little aluminum doghouse that my brother is using...
Looking good Saturn5!
I'm assuming that all that ducting is painted mild steel? do you have any closups of your outlet bonnets, they look better then the little aluminum doghouse that my brother is using...
Yes its mild steel tubing painted with aluminum hammertone.
The bonnets are stock covers with the stock outlet removed, and 2.5 inch aluminum tubing down the center. I also removed the internal fins. I'll post some pics later. cheers, Bob
Thread Starter
Supreme Member
Joined: Jun 2000
Posts: 1,612
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From: the garage
Car: 84 SVO
Engine: Volvo headed 2.3T
Transmission: WCT5
Axle/Gears: 8.8" 3.73
Originally posted by B4Ctom1
holy crap will the hood close? would you be better off with dual filters for hood clearance?
holy crap will the hood close? would you be better off with dual filters for hood clearance?
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