6.5 Turbo install on a 6.2 - TheDieselGarage.com
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post #1 of 19 (permalink) Old 10-18-2007, 03:30 AM Thread Starter
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6.5 Turbo install on a 6.2

ok, i need some imput on this
i just got a 6.5 used turbo set up. my question is where should i mount the oil feed and return lines into the engine?? same places as the 6.5?
I have heard some huys put the return into the timing chain cover. can you do this without removing the motor? if anyone else has some pics of this it would help alot
-mike
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post #2 of 19 (permalink) Old 10-19-2007, 02:17 PM
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Theres a couple things.....

6.2smoke'r,
Yes you could go back into the timing cover or you could go with an electric fuel pump and use the manual pump block off plate. I know when they install oil return lines on aftermarket kits alot of times they weld a Bung to the oil pan OR you can use a punch to punch the correct size hole(for your tap) in the oil pan and then using vasaline tap threads into the hole and hook up you're return.
As for you're feed line. The 6.2 doesn't have the spot the 6.5 has for oil feed so you will probebly have to come off of 1 of the ports by the oil filter.
Don't take any off this as gospill this is just what I know.:Thumbup:
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post #3 of 19 (permalink) Old 10-20-2007, 03:09 AM
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hi, i done this on my 91 burban a cpl years ago. the oil feed i used a brass T at the back of the block where the oil sender is and run a line from there to the turbo. the drain, i put in the timing cover. i think i used a 1" pipe nipple.. use a drill bit just a little smaller than the threads. drill the cover. and the nipple will tap itself.. the cover is alum. so if any shavings get in the cover it wont hurt. just drill slow and try to keep most of them out. also, you have to turn the pump up to match the new found air flow... it will be a whole new truck when done. i love mine...

93 chevy x cab dually with 1st gen 12vcummins & 5sp/4500 trans.
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post #4 of 19 (permalink) Old 11-07-2007, 08:48 PM
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crazy ? can you just bolt a turbo on a diesel without doing any internal mods to the motor or the pump
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post #5 of 19 (permalink) Old 11-07-2007, 11:17 PM
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Quote:
Originally Posted by SEABEECM1
crazy ? can you just bolt a turbo on a diesel without doing any internal mods to the motor or the pump
just turn up the pump, and your ok..

93 chevy x cab dually with 1st gen 12vcummins & 5sp/4500 trans.
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post #6 of 19 (permalink) Old 11-08-2007, 02:07 AM Thread Starter
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turbo is almost done !!!! how much do i turn up the fuel ?? my boost control is set at 12 psi max do i just go a little at a time? where is the screw located on the engine
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post #7 of 19 (permalink) Old 11-08-2007, 06:55 PM
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Start w/ a quarter turn (clockwise to increase) then raise or lower it from there depending on how your EGTs are. The screw is either under the injection pump cover or you can go in through the triangular cover on the side like the ford guys like to go. You'll have to rotate the engine around until you can see the 5/32 allen screw.

Up the fuel

12psi sounds about right :Thumbup:
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post #8 of 19 (permalink) Old 11-14-2007, 08:35 PM
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how much of a power increase do you get from putting the turbo on? and doy you usualy keep the same heads or get some off a 6.5?
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post #9 of 19 (permalink) Old 11-26-2007, 04:50 AM
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I'm adding the 6.5 turbo to my 6.2 Its looking good but i don't have a boost controller. I am installing a pyrometer and boost gauge and just like my super duty i would be keeping an eye on it but i was wondering, whats the highest boost levels a 6.2 can safely handle i just want to keep it safe.

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post #10 of 19 (permalink) Old 11-29-2007, 04:24 AM Thread Starter
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i wouldnt want to go over 15 psi regulary most stock manual wastegate controllers are between 8-12 psi since the 6.2 isnt engineered as a turbo engine ( un- like the newer 6.6 ) it cant handle the constant high boost pressures internally
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