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Old 04-01-2012, 01:55 AM   #1
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Twin turbo on stock 86 possible?

Buddy wants to get a twin turbo set up on his 86 gt. Its converted to maf and has 90k on car and engine. Anything he needs to have done to engine before he buys the tt Kit? Thanks
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Old 04-01-2012, 02:39 AM   #2
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Without forged internals all that boost is going to tear up that stock block..
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Old 04-01-2012, 07:09 AM   #3
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Twins are a bit overkill on a stock motor. It does have forged pistons but they can only handle so much. I would go single turbo with moderate boost.
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Old 04-01-2012, 07:27 AM   #4
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Instead of buying two, buy one an put the rest of your money in elsewhere.
-Suspension
-rear end
-trans/clutch/ torque conv.
Etc. ...... That's just my 02.
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Old 04-01-2012, 10:20 AM   #5
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Re: Twin turbo on stock 86 possible?

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Originally Posted by lilrafe87 View Post
Buddy wants to get a twin turbo set up on his 86 gt. Its converted to maf and has 90k on car and engine. Anything he needs to have done to engine before he buys the tt Kit? Thanks
See #4 post in this thread - Superchargers & Turbos
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Old 04-01-2012, 06:10 PM   #6
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I want to put a single turbo on my 86, but seems like a lot of work
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Old 04-01-2012, 07:23 PM   #7
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Re: Twin turbo on stock 86 possible?

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I want to put a single turbo on my 86, but seems like a lot of work
It is, as is anything that's really worthwhile.
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Old 04-02-2012, 06:15 AM   #8
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Quote:
Originally Posted by Trojan Horse

It is, as is anything that's really worthwhile.
+1
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Old 04-02-2012, 07:15 AM   #9
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Only problem I would have is running the oil lines to the turbo
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Old 04-02-2012, 02:31 PM   #10
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Re: Twin turbo on stock 86 possible?

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Only problem I would have is running the oil lines to the turbo
That is simplicity in itself and one of the easiest things to do during turbo installation.
You will simply tee into your oiling system at the sending unit and run a line to the turbo. The return line comes out of the turbo and is returned into the oil pan, which you can remove and weld on a return fitting or punch and install a return fitting.
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Old 04-02-2012, 05:15 PM   #11
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Re: Twin turbo on stock 86 possible?

Here is a link to a single turbo installation. Look through all the pictures and read the captions to get an idea of what it will take to install a turbo. Then get busy and be happy!


Car Craft Turbo Installation Article
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Old 04-02-2012, 06:26 PM   #12
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They do sell no oil turbos just like the superchargers now. I'll post the link

---------- Post added at 05:26 PM ---------- Previous post was at 05:23 PM ----------

http://www.compturbo.com/spotlights/oilless
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Old 04-02-2012, 06:48 PM   #13
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Re: Twin turbo on stock 86 possible?

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They do sell no oil turbos just like the superchargers now. I'll post the link

---------- Post added at 05:26 PM ---------- Previous post was at 05:23 PM ----------

Comp Turbo - Oil-Less
That's pretty interesting. I will include a link to that in my SC & TC thread.
I never figured they would be able to do that because of the heat and the oil "coking" problems.
I actually fabbed up a small gear type oil pump that I intend to use with my supercharger to help cool the bearings after the engine is shut down. I will put it on a timer so that when power is turned off it will run for 2-3 minutes and continue pumping oil to the supercharger.
I don't know if it will provide any "real" benefits or not, but it will make me feel better.
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Old 04-02-2012, 07:21 PM   #14
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Ceramic bearings are great. They are supposed to be maintenance free

---------- Post added at 06:21 PM ---------- Previous post was at 06:14 PM ----------

Oh and for everyones info, stay away from the eBay turbos. Very cheaply made.... Tend to break quickly.... Just saying.

As for twins you'd better invest in forged internals like stated above and a main cap gridle wouldn't hurt. If you want to run a oiled turbo invest in a good high volume oil pump and a good blow off valve plus boost controller. Biggest thing would be a cool down timer so that the car runs for a few minutes after you shut it off to give the turbos time to blow off the pressure. Pending the amount of boost you plan to run.
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Old 04-02-2012, 07:28 PM   #15
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Quote:
Originally Posted by Trojan Horse

That's pretty interesting. I will include a link to that in my SC & TC thread.
I never figured they would be able to do that because of the heat and the oil "coking" problems.
I actually fabbed up a small gear type oil pump that I intend to use with my supercharger to help cool the bearings after the engine is shut down. I will put it on a timer so that when power is turned off it will run for 2-3 minutes and continue pumping oil to the supercharger.
I don't know if it will provide any "real" benefits or not, but it will make me feel better.
Actually I was going to say that most real turbo guys do that and it's the norm on turbo diesels . And would make sense for a sc provided its not a sealed unit
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Old 04-02-2012, 07:30 PM   #16
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http://www.google.com/url?sa=t&sourc...NgXrkrg-yNnFlQ

Something like that.
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Old 04-02-2012, 07:42 PM   #17
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Re: Twin turbo on stock 86 possible?

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Originally Posted by tbonestang View Post
Actually I was going to say that most real turbo guys do that and it's the norm on turbo diesels . And would make sense for a sc provided its not a sealed unit
Thank you for the confirmation.
It isn't sealed and I left out part of my plans.
I am also going to use a "primer" switch to pre-lube the engine and SC before starting.
I might be going a bit overboard, but I have a lot of my time and money tied up in the car, engine and SC, so I will do what I can to preserve and protect it.
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Old 04-02-2012, 07:46 PM   #18
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Re: Twin turbo on stock 86 possible?

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Similar, but I will source my own switches, relays, timers, etc., and build my own set up.
I love tinkering with and designing wiring and control systems and get a thrill when they work like I want them to.
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Old 04-02-2012, 08:07 PM   #19
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+1 me too but some people prefer plug and play.
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Old 04-03-2012, 08:56 AM   #20
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Would the computer need to be tuned? Seen some turbo kits that had a maf, but I'm sure its not that easy.
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Old 04-03-2012, 09:08 AM   #21
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Quote:
Originally Posted by lilrafe87
Would the computer need to be tuned? Seen some turbo kits that had a maf, but I'm sure its not that easy.
I would highly recommend a tune.I would also have it tuned before you even drive it.one 5 minute drive is about all it could take for something terrible to happen.not including the tune will help you get the best bang for your buck.
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Old 04-03-2012, 09:11 AM   #22
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Quote:
Originally Posted by dreamstang

I would highly recommend a tune.I would also have it tuned before you even drive it.one 5 minute drive is about all it could take for something terrible to happen.not including the tune will help you get the best bang for your buck.
Agreed there. Alot of money to throw away for just a 5 min ride
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Old 04-03-2012, 12:56 PM   #23
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Anything stock with those kind of aspersion goals is too much. A single turbo or a supercharger with both at low boost would be alright, with the correct replacement in gaskets and some internal work of course.
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