[Gmecm] Looking for specs - 97 to 99 Chevy diesel 2500HD pickup...

Mon Feb 13 00:29:58 UTC 2012

my 'gut' feel based on knowing what I do about diesel and gas turbo 
applications, it's likely way big for your use - my rational:
gas is usually much lower boost level than is diesel
the displacement (meaning cylinder volume to fill) is nearly 2X what I believe 
your'e looking at - I believe your targeting a 3ish litre and?this hog is 
targeted to a nearly 7 ish litre
the volume/velocity of air to spin it up would most likely not allow it to spool 
as necessary to develop low end torque, but might be great at high rpm to 
overcome intake friction or a poor intake path

I'd be interested in what you find and do, keep us educated as you go
?
-rick

________________________________
From: David Allen <davida1 at hiwaay.net>
To: Aaron <aaron at creativeoverdrive.com>; GM-ECM <gmecm at diy-efi.org>
Sent: Sun, February 12, 2012 6:15:13 PM
Subject: Re: [Gmecm] Looking for specs - 97 to 99 Chevy diesel 2500HD pickup...

Thank you for the information!!!
Will look into that as time allows.
David

----- Original Message ----- 
From: "Aaron" <aaron at creativeoverdrive.com>
To: "'David Allen'" <davida1 at hiwaay.net>
Sent: Sunday, February 12, 2012 2:54 PM
Subject: RE: [Gmecm] Looking for specs - 97 to 99 Chevy diesel 2500HD 
pickup...

>I can look it up for you.
> What Spec are you looking for?
> I assume you mean turbo, I didn't find any maps or diameter on a quick
> search.
> Here are some part numbers and such to help your searching from behind the
> great fire wall.
>
> 6.5L GM Specs:
> Manufacturer:
> Detroit Diesel
>
> Production Years:
> 1992-2000. Continued use in military applications by AM General.
>
> Applications:
> Chevrolet/GMC: Tahoe, Yukon, Suburban, C/K pickups, 2500 & 3500 trucks. AM
> General: Hummer & HMMWV
>
> Configuration:
> V-8
>
> Block/Head Material:
> cast iron block, cast iron heads
>
> Displacement:
> 395 cubic inches, 6.5 L
>
> Compression:
> 18:1 - 21.3:1 depending on year & application
>
> Bore:
> 4.06 inches
>
> Stroke:
> 3.82 inches
>
> Injection:
> IDI (indirect injection)
>
> Aspiration:
> Turbocharged & naturally asprirated versions available.
>
> Max Engine Speed:
> 3,400 RPM
>
> Horsepower:
> Introductory: 180 HP @ 3,400 RPM
> Peak: 215 HP @ 3,200 RPM
>
> Torque:
> Introductory: 360 HP @ 1,700 RPM
> Peak: 440 lb-ft. @ 1,800 RPM
>
> Reputation:
> Outperformed by Dodge & Ford. Capable of respectable fuel economy. 
> Somewhat
> problematic depending on version of engine.
>
> Additional 6.5L Information:
>
> . Offered in naturally aspirated & turbocharged versions.
>
> . The 6.5L was replaced by the Duramax 6600 (6.6 L).
>
> . AM General now manufacturers and uses the 6.5 L diesel in their military
> HMMWV (now called the 6500 Optimizer).
>
> . Common problems with the 6.5L included cracks in the main caps &
> crankshaft failures due to aging/fatigue of the harmonic balancer. Glow
> plugs are prone to failure (causes hard starting), overheating issues in 
> the
> 1988-1998 style trucks (can lead to cracked cylinder heads).
>
> 6.5L GM Engine Versions:
>
> . L49: Naturally aspirated.
>
> . L56: Turbocharged. Emissions controlled (EGR & catalytic converters). 
> Used
> in all light duty 1/2 & 3/4 ton trucks.
>
> . L57: Naturally Aspirated. HO or heavy duty.
>
> . L65: Turbocharged. Used in all heavy duty 3/4 & 1 ton trucks.
>
> . LQM: 175 HP
>
> . LQN: 190 HP
>
> . "Fuel Miser": 120 HP, 260 lb-ft. torque. Optional in P-trucks (delivery
> trucks).
>
> =---------------------
> http://www.thedieselpage.com/finale.htm
>
> The maximum boost pressure for all stock 6.5 diesels is about 7 psi, and 
> the
> stock 6.5 trucks run without an intercooler. The new pistons, intercooler
> and factory GM-8 turbo allowed us to safely run competitive levels of 
> boost
> pressure.
>
> -------------------------
> http://www.dieselplace.com/forum/showthread.php?s=19a365c063d5c5db9270a7431c
> 5a5337&t=435415
>
> It will depend on the load on the engine. For the most part, you'll see a
> max sustained of about 7-10 pounds. May hit 12 under high load.
> ----------------------
> http://www.hdiesel.com/product.asp?id=77
> Year Range Part Number
>
> 1991-1992 CK GM1 Rebuilt / Exchange Turbo? 10183934 or 12515808
> 1993 CK GM3 Rebuilt / Exchange Turbo? 10226226 or 12521577
> 1993-1994 CK GM4 Rebuilt / Exchange Turbo? 10154652 or 12512988
> 1995-1998 CK GM5 Rebuilt / Exchange Turbo? 12552738 or 12530336(use GM8)
> 1996-2000 Van GM6 Rebuilt / Exchange Turbo 10241690 or 12530339
> 1997-2000 CK GM8 Rebuilt / Exchange Turbo? 12530339 or 12556124
> ------------------------
> http://www.turborepair.com/index.php?option=com_content&view=article&id=180&
> Itemid=142
>
> .1992 GM-1, production number 6T-522, GM PN 10183934, pottergate spring
> loaded wastegate
> .1993, GM-3, production number 6T-522, GM PN 10226226, Added bosses for
> straps on compressor housing
> .1994, GM-2, production number 6T-552, GM PN 10154686, Long exhaust elbow
> .1995, GM-4, production number 6T-550, GM PN 10154652, vaccuum wastegate
> .1996, GM-5, production number 6T-560, GM PN 12552738, die cast compressor
> housing, short turbine housing, new wastegate design
> .1997, GM-8, production number 6T-566, GM PN 12556124, vertical mount
> vaccuum wastegate
> .Hummer, GM-7, production number 6T-561, GM PN 12553949, military
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> -----Original Message-----
> From: gmecm-bounces at diy-efi.org [mailto:gmecm-bounces at diy-efi.org] On 
> Behalf
> Of David Allen
> Sent: Saturday, February 11, 2012 9:13 PM
> To: JY-Turbo List; GM-ECM
> Subject: [Gmecm] Looking for specs - 97 to 99 Chevy diesel 2500HD 
> pickup...
>
> Title says it all. A friend has found a turbo from a 97 to 99 Chevy diesel
> 2500HD pickup. I am afraid it will be way too large for the intended 
> project
> but would appreciate if someone had specs on it.? I'm overseas with very
> limited Internet access to research things like this.
>
> The proect is a 3.8L V6, aiming for 250-300 engine HP. Should require 
> about
> 10 to 12 PSI to do this.
>
> Thanks for any input!
> David
>
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