Turbo Questions
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Joined: Mar 2003
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From: Ogden, UT
Car: 95 Z28
Engine: LT1
Transmission: Built 4L60E with 3000 Stall
Axle/Gears: 3.23? I'm not sure
Turbo Questions
Before Someone says Search, I've been scrounging around all night...
Anyways, what kind of turbos will work? I mean Ive seen eclipse turbos and a Saab one, but would something off a Daytona or a Dodge Shadow or something work? I bet in the junkyards theres a huge demand for DSM *eclipse* turbos, but less of a demand for a turbo from a car that people dont really beef up. Any Ideas of what cars are turbo that arent really "peformance" that would be possible donor cantidates?
Any one have any doodles or pictures or anything of how the plumbing is routed?
I've also noticed that on Dowards the EGR is removed, is this related?
That thing in the bottom right looks EGR related, Where does that go to techsmurf?
If I can find a turbo for the right price, I really do wanna do this. Thanks for any help guys
I have a spare 2.8 in my dads garage that I need to get rid of. Its mostly complete, are there any parts I might wanna snag for the fabrication part of it so that I dont have to hack up my current engine? Like the Exhaust Manifolds and some Intake stuff maybe?
:edit *like 5th time lmao* : I hear that ground clearance will be an issue... im lowered 1.6 inches, am I screwed? lol
Anyways, what kind of turbos will work? I mean Ive seen eclipse turbos and a Saab one, but would something off a Daytona or a Dodge Shadow or something work? I bet in the junkyards theres a huge demand for DSM *eclipse* turbos, but less of a demand for a turbo from a car that people dont really beef up. Any Ideas of what cars are turbo that arent really "peformance" that would be possible donor cantidates?
Any one have any doodles or pictures or anything of how the plumbing is routed?
I've also noticed that on Dowards the EGR is removed, is this related?
That thing in the bottom right looks EGR related, Where does that go to techsmurf?
If I can find a turbo for the right price, I really do wanna do this. Thanks for any help guys
:edit *like 5th time lmao* : I hear that ground clearance will be an issue... im lowered 1.6 inches, am I screwed? lol
Last edited by theratdude64; Mar 28, 2005 at 05:57 AM.
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From: Tucson, AZ, USA
Car: '99 Trans Am, '86 Camaro
Engine: LS1, Scrap
Transmission: T56, T5
Axle/Gears: 3.42 Stock ZT, 3.42 Open
4-cyl Mopar and DSM turbos are too small. I'll leave it to Doward to start explaining flow maps (too late for me now). Thing at the bottom right is the oil feed/drain assembly for the CT-26 ... my egr is removed, but *may* be returning once I fabricate a new downpipe
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Joined: Dec 2000
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From: Tucson, AZ, USA
Car: '99 Trans Am, '86 Camaro
Engine: LS1, Scrap
Transmission: T56, T5
Axle/Gears: 3.42 Stock ZT, 3.42 Open
Also, if you're fabricating, ground clearance is only an issue if you make it one. You're kinda free to run pipes however you want, frame/engine/accessories/K-member willing.
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Joined: Mar 2003
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From: Ogden, UT
Car: 95 Z28
Engine: LT1
Transmission: Built 4L60E with 3000 Stall
Axle/Gears: 3.23? I'm not sure
ahh ok cool thx. Outta curiousity, do you have any other pics besides whats on your site?
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Joined: Aug 2002
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From: Gainesville, FL
Car: 1988 Chevy Camaro Hardtop
Engine: Turbocharged/Intercooled 3.1
Transmission: World Class T5 5 Speed
*yawn* Up before 8am... what's wrong with me? 
Any of the turbo II 2.2 LeBarons, Daytonas, Omnis (the Dodge/Chryslers) with the GARRETT turbos are good starts. Easily upgraded, as well.
You'll probably find something like a 45 or 50 trim T3... They really don't flow enough for our 2.8/3.1s. They WILL WORK, but I'd recommend going to AT LEAST a Super 60 compressor wheel, if you upgrade... T3/T4 hybrid is where the power is, though
If you have any questions, hit me up on AIM

Any of the turbo II 2.2 LeBarons, Daytonas, Omnis (the Dodge/Chryslers) with the GARRETT turbos are good starts. Easily upgraded, as well.
You'll probably find something like a 45 or 50 trim T3... They really don't flow enough for our 2.8/3.1s. They WILL WORK, but I'd recommend going to AT LEAST a Super 60 compressor wheel, if you upgrade... T3/T4 hybrid is where the power is, though

If you have any questions, hit me up on AIM
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Thread Starter
Senior Member
Joined: Mar 2003
Posts: 615
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From: Ogden, UT
Car: 95 Z28
Engine: LT1
Transmission: Built 4L60E with 3000 Stall
Axle/Gears: 3.23? I'm not sure
Cool. lol awesome, the 2 Masters of the 2.8 Turbo Replied to me
Just the guys I was hoping to talk to haha. Ya, I added you to AIM the other day but wanted to research a bit more before I bugged ya
I dont sleep much, and ive been reading that turbo chronical thread *YEY at the bottom of page 3*
Hows the Adjuster thingy work? I am having a brainfart as to its actual name
I know a guy that got an internship with Garrett and he has a Celica that runs like 11's, so tomorrow I'll talk to him some about the turbos
*edit* Finished
LMAO I read all that awesome stuff with the BS thrown in it, just to read that mod say "ok new thread so people dont have to read that!" haha oh well I had fun doing it
Just the guys I was hoping to talk to haha. Ya, I added you to AIM the other day but wanted to research a bit more before I bugged ya
I dont sleep much, and ive been reading that turbo chronical thread *YEY at the bottom of page 3* Hows the Adjuster thingy work? I am having a brainfart as to its actual name
I know a guy that got an internship with Garrett and he has a Celica that runs like 11's, so tomorrow I'll talk to him some about the turbos

*edit* Finished
LMAO I read all that awesome stuff with the BS thrown in it, just to read that mod say "ok new thread so people dont have to read that!" haha oh well I had fun doing it Last edited by theratdude64; Mar 28, 2005 at 07:14 AM.
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From: Waterford, MI
Car: 1998 Camaro Z28
Engine: 6.0L
Transmission: 4L60E
Axle/Gears: 3.73
i dont know a whole lot about the whole turbo subject but i do know, from working at a dodge dealership, that those turbos off the daytonas, shadows, etc tend to puke out around 80,000 miles or so. if you get one, make sure you get it rebuilt before installing it. ive seen a lot of them replaced, they werent a great design for longevity.
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Joined: Dec 2000
Posts: 2,375
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From: Tucson, AZ, USA
Car: '99 Trans Am, '86 Camaro
Engine: LS1, Scrap
Transmission: T56, T5
Axle/Gears: 3.42 Stock ZT, 3.42 Open
I'm kinda lacking in the picture department. I didn't have a digital camera back when the original setup went in. Got a nice 6.1MP camera now, but no noteworthy work has been done since then. Pictures will start to flow when I begin work on the new exhaust setup (Mock-up engine is on a stand waiting for materials).
Thread Starter
Senior Member
Joined: Mar 2003
Posts: 615
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From: Ogden, UT
Car: 95 Z28
Engine: LT1
Transmission: Built 4L60E with 3000 Stall
Axle/Gears: 3.23? I'm not sure
lol just take more pics of the current setup
But I am a camera ***** and take tons n tons of pictures
But I am a camera ***** and take tons n tons of pictures Supreme Member
Joined: Jul 2001
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From: BFE, MD
Car: 13 Ram 1500/ 78 Formy
Engine: 5.7 / 7.4
Transmission: 6sp / TH350
Axle/Gears: 3.55 posi / 3.23
Hows the Adjuster thingy work? I am having a brainfart as to its actual name
Thread Starter
Senior Member
Joined: Mar 2003
Posts: 615
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From: Ogden, UT
Car: 95 Z28
Engine: LT1
Transmission: Built 4L60E with 3000 Stall
Axle/Gears: 3.23? I'm not sure
ahh. No isnt there a **** you turn that beefs it up or turns it down? My friend has a 91 eclipse that when he wants to save money or run lower octane, he turns the turbo waaay down so that his car is dead slow lol
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Joined: Apr 2003
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From: Ontario
Car: IROC Z
Engine: 5.7
Transmission: 700R4
i may be able to grab a turbo from a dodge caravan for 100$ cad. just a thought. i dont know if i want to turbo my car as id rather have another camaro (v8 ttops 5speed) but if its not much trouble then heck if i can do it for a few $ then why not.
so what kind of exhaust manifold does your kit have. i have an exhaust leak there so i need to fix it anyway. hell if i gotta take the manifold off may as well throw a manifold with a turbo there right? hah.
which side manifold does the kit use? any completed pics?
so what kind of exhaust manifold does your kit have. i have an exhaust leak there so i need to fix it anyway. hell if i gotta take the manifold off may as well throw a manifold with a turbo there right? hah.
which side manifold does the kit use? any completed pics?
Thread Starter
Senior Member
Joined: Mar 2003
Posts: 615
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From: Ogden, UT
Car: 95 Z28
Engine: LT1
Transmission: Built 4L60E with 3000 Stall
Axle/Gears: 3.23? I'm not sure
his uses both engine banks, and stock manifolds. 5 speed V8s are ONLY 305s, and 305s suck
No such animal as a 350 5 speed. you could always get an IROC and swap a T56 in but holy expensive batman
No such animal as a 350 5 speed. you could always get an IROC and swap a T56 in but holy expensive batman
Thread Starter
Senior Member
Joined: Mar 2003
Posts: 615
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From: Ogden, UT
Car: 95 Z28
Engine: LT1
Transmission: Built 4L60E with 3000 Stall
Axle/Gears: 3.23? I'm not sure
Exactly!! The Blow Off Valve freakin rules too
Doward or Techsmurf, got a video or a sound clip at least of yours?
Doward or Techsmurf, got a video or a sound clip at least of yours? Supreme Member
Joined: Apr 2003
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From: Ontario
Car: IROC Z
Engine: 5.7
Transmission: 700R4
my car is an auto hardtop and is brown.
i still want a black v8 5 speed ttop, and i always will until i get one.
both exhaust banks eh. so what you flip both manifolds around?
i still want a black v8 5 speed ttop, and i always will until i get one.
both exhaust banks eh. so what you flip both manifolds around?
Thread Starter
Senior Member
Joined: Mar 2003
Posts: 615
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From: Ogden, UT
Car: 95 Z28
Engine: LT1
Transmission: Built 4L60E with 3000 Stall
Axle/Gears: 3.23? I'm not sure
huh? what do you mean flip em around. They work how they are, I'll let them explain that though... Even if, they cant swap sides because the exhaust ports are like O OO and the other one is OO O or something to that effect, they wont line up when you flip em
Thread Starter
Senior Member
Joined: Mar 2003
Posts: 615
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From: Ogden, UT
Car: 95 Z28
Engine: LT1
Transmission: Built 4L60E with 3000 Stall
Axle/Gears: 3.23? I'm not sure
Anyone have an esitmate what kinda numbers a Turbo 3.4 liter puts out? Would that compete with an LT1 6 speed? lol. Ive driven an Lt1 6 speed and it would be the coolest thing to have my V6 thirdgen do that

Questions about the Speed Density swap... Talked to ya earlier Smurf about it, but still confused. I've been searching and cant find any info on it more than just the words "speed density" So what parts do I gotta swap? I can probally score all that stuff *and a 3.4 short block* from a junkyard. Just use the full SD Setup off of the car with the 3.4? Thats just in early LT1 body style camaros right? I thought MAF was better for turbo because more headroom for PSI
How do you get around that with SD?
I found this, but its for V8s
http://www.eecis.udel.edu/~davis/z28/ecm_swap_730/
how much applies to V6? That is saying get a new MemCal for theV8 MAP system. Does the chip from a 3.1 91 RS work? Or would the 4th gen work somehow?
And Random questions... what kind of Oil Ring compression is best for Turbo setups?

Questions about the Speed Density swap... Talked to ya earlier Smurf about it, but still confused. I've been searching and cant find any info on it more than just the words "speed density" So what parts do I gotta swap? I can probally score all that stuff *and a 3.4 short block* from a junkyard. Just use the full SD Setup off of the car with the 3.4? Thats just in early LT1 body style camaros right? I thought MAF was better for turbo because more headroom for PSI
How do you get around that with SD?I found this, but its for V8s
http://www.eecis.udel.edu/~davis/z28/ecm_swap_730/
how much applies to V6? That is saying get a new MemCal for theV8 MAP system. Does the chip from a 3.1 91 RS work? Or would the 4th gen work somehow?
And Random questions... what kind of Oil Ring compression is best for Turbo setups?
Last edited by theratdude64; Mar 29, 2005 at 06:10 AM.
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From: Gainesville, FL
Car: 1988 Chevy Camaro Hardtop
Engine: Turbocharged/Intercooled 3.1
Transmission: World Class T5 5 Speed
On the street, from a roll, I'm as fast as a LS1/A4 SS already.
That's with the tiny turbo, and a 3.1
I'll be rolling out the T61 today, and tuning starts... I'll get to the track, either tomorrow, or next Wednesday, to see how it runs.
Power output from a 3.4? Tiago had 258/332 at the wheels, from a T4 on a 3.4. I got 222/291 at the wheels, from a smaller 16G, and need of tune
(Tiago @ 7psi, me @ 6psi)
And both are handling it like a champ
That's with the tiny turbo, and a 3.1
I'll be rolling out the T61 today, and tuning starts... I'll get to the track, either tomorrow, or next Wednesday, to see how it runs.
Power output from a 3.4? Tiago had 258/332 at the wheels, from a T4 on a 3.4. I got 222/291 at the wheels, from a smaller 16G, and need of tune
(Tiago @ 7psi, me @ 6psi)And both are handling it like a champ
Thread Starter
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Joined: Mar 2003
Posts: 615
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From: Ogden, UT
Car: 95 Z28
Engine: LT1
Transmission: Built 4L60E with 3000 Stall
Axle/Gears: 3.23? I'm not sure
Holy Hell I am totally goanna do it now
Hang with Da LS1s in a 3rd gen is my dream. They all turn their noses up at 3rd gens and they're crappy... till they get smoked by one
How much was that Setup total -VS- that SS you hang with? Exactly
Have you done the SD Swap? The artical I see on that scares me
Hang with Da LS1s in a 3rd gen is my dream. They all turn their noses up at 3rd gens and they're crappy... till they get smoked by one
Have you done the SD Swap? The artical I see on that scares me
Thread Starter
Senior Member
Joined: Mar 2003
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From: Ogden, UT
Car: 95 Z28
Engine: LT1
Transmission: Built 4L60E with 3000 Stall
Axle/Gears: 3.23? I'm not sure
Well... besides the smoke V8s factor, I really really really want a turbo for the BOV sound, and from what techsmurf and others have said, I cant have that with MAF
Does yours do it?
Does yours do it?
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Joined: Mar 2005
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From: mass
Car: 87 z28 conv
Engine: gn motor
Transmission: 700r4
turbos are cool i have a grand national in my 87 3rd gen they are a cool thing. i just have promblems on launching the brakes won't hold to make boost but good luck with everything
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From: Gainesville, FL
Car: 1988 Chevy Camaro Hardtop
Engine: Turbocharged/Intercooled 3.1
Transmission: World Class T5 5 Speed
Just test drove the T61...
OH MY ***. From 3200+ rpm, it's like the hand of *** is pushing you.
I swear, 6psi on this, is faster than 10psi on the 16g
TUNING TO COME!
OH MY ***. From 3200+ rpm, it's like the hand of *** is pushing you.
I swear, 6psi on this, is faster than 10psi on the 16g
TUNING TO COME! Thread Starter
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From: Ogden, UT
Car: 95 Z28
Engine: LT1
Transmission: Built 4L60E with 3000 Stall
Axle/Gears: 3.23? I'm not sure
Thats badass. Is it really that bad to get a turbo from the junkyard? I'm talking to my turbo friend right now and he said DO NOT GET A JUNKYARD ONE!!! how hard are they to rebuild?
He also said the way around Atmosphere BOV and MAF readings is to get a vane pressure controller. *edit* but by what he said after that it sounds like SD is a better way to go.
He also said the way around Atmosphere BOV and MAF readings is to get a vane pressure controller. *edit* but by what he said after that it sounds like SD is a better way to go.
Last edited by theratdude64; Mar 30, 2005 at 12:19 AM.
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Joined: Aug 2002
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From: Gainesville, FL
Car: 1988 Chevy Camaro Hardtop
Engine: Turbocharged/Intercooled 3.1
Transmission: World Class T5 5 Speed
It's all in where you place everything... in all honesty, I'm going from a BOV to the atmosphere, to a recirculating BOV - for one, it keeps the turbo spooled MUCH better, and for two, I can't hear the BOV over the sound of 3.1 liters screaming at 6000rpm through 3" Flowmaster piping, and the shrill shriek of the turbo sucking air in a 3" pipe
Thread Starter
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From: Ogden, UT
Car: 95 Z28
Engine: LT1
Transmission: Built 4L60E with 3000 Stall
Axle/Gears: 3.23? I'm not sure
Eh, I know its better to have recirculating, but I want to be able to have it open too. Like I love loud cars, My truck was really loud cause my exhaust was open. I finally put the exhaust back on. Just wanted to get it outta my system
It would just be nice to have the option to open it
It would just be nice to have the option to open it Supreme Member
Joined: Dec 2000
Posts: 2,375
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From: Tucson, AZ, USA
Car: '99 Trans Am, '86 Camaro
Engine: LS1, Scrap
Transmission: T56, T5
Axle/Gears: 3.42 Stock ZT, 3.42 Open
Originally posted by Doward
You just run rich in between shifts. No huge prob
You just run rich in between shifts. No huge prob
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