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6.5L Diesel Engine Discuss the 6.5 GM diesel engine & associated components. Automatic transmission questions & problems belong in the 4L80/85 - 4L60E - 6L90 Transmission Forum

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Old 10-10-2006, 05:15 PM   #1 (permalink)
Diesel Student
Join Date: Dec 2004
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turning up ip

Hey there,
Trucks running good.Wondering about turning up my manual ip on my 93.Never messed with it,but a buddy of mine said it sounded out to him.What does this change exactly?How do you time this engine for optimum performance?Also,I have a gm3 turbo.Are these things a real trick to rebuild?
Thanks in advance.

1993 chevy 3500 dually.2wd 6.5 td manual ip.5 speed manual transmission.gm3 turbo.
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Old 10-10-2006, 08:35 PM   #2 (permalink)
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Join Date: Jan 2006
Location: Okanagan BC. Canada
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To turn your pump up check this out, http://www.stylinconcepts.com/images...ions/96309.pdf its the Banks stinger kit instructions and on pages 11 to 13 it tells you how to turn up the pump. It probably won't help with hp if you havn't opened up the exhaust and intake (delete the snorkle) and increase boost pressure. Will likely cause to high of exhaust temps and burn more fuel.(don't do without egr gauge)

Turbos last a long time how many kms. does your truck have.

1993 F 6.5 turbo/desiel 3/4 ton HD, long box, 2wd, 4L80E trans., 3:42 rear gears, 170,000 miles, Heath 4" exhaust, dual thermastate/HO water pump upgrade, DB2 pump turned up 1/4 turn, 97+ air cleaner, removed snorkle, Autometer EGT/Trans/Boost gauges, manual torque converter lockup switch, Heath turbo master, Okanagan BC. Canada

86 Monte Carlo SS, Original Owner 55000 miles. 2002 Dodge Dually 3500 24v cummins
00 Dakota Sport 90000kms 4.7l, 97 Grand Prix GT, 05 Bigfoot truck camper, 56 Ford f600, 02 Polaris Scrambler 400, 97 Polaris 900 watercraft, 97 Yamaha 700 Mountain Max.
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Old 10-10-2006, 09:08 PM   #3 (permalink)
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Join Date: Jun 2006
Location: Modesto,CA
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If you pull a trailer dont touch the pump. I messed with mine and could never get the egt's back down. Just my experience but something to think about.
2002 2500hd 4x4 cc lb 6" lift D/A Flashpaq on performance level- very impressed
Now detuned to tow/performance due to limp- still impressed though Banks Ram-Air intake Banks cat back and MBRP front pipe

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Old 10-10-2006, 10:36 PM   #4 (permalink)
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Go to http://www.flashoffroad.com/Diesel/i...anicalpump.htm

Use a 5/32 allen wrench and go thru the side cover.

Go to my classic way:
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