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6.5 Na Max Potential?

scottm said:
War, the factory rating of 3600 is no doubt conservative, plus they won't breath or fuel above that anyway. I am really encouraged by the Heath Bonneville racer, because they used a scat crank, stock rods, and 6.2 pistons and ran it to 5000. I'll be happy if my engine still makes power at 4000, with a nice rpm factor of safety in case of a momentary over rev.

Is Ted's trucks the only place to get a rebuildable optimizer engine core? I don't want to pay $3k for a healthy engine, I would rather get one needing rebuilding.

http://www.dieselpowermag.com/featu..._diesel_race_engine/bosch_injection_pump.html
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Don't forget: that engine had quite a few changes from stock, was twin turbo'd, and had the DS4 fuel tables populated out to 5 grand. It also only ran the salt and then went back on the trailer.

If you build it right, you can probably make a NA live up there, but getting the air in and out might be an issue.

You might be able to score a GEP 6.X off a gvt auction somewhere, or if you dig long and hard enough you may find a GEP somewhere else. Most of them are complete engines though and call for around the 2 grand mark.....
 
My 95 shifts around 3800-4200 depending on what tune I'm running. The tunes for my gm4 is the lower rpm, maybe it stops at 3600 now but I used to have the gm run higher until I decided that was pointless.
 
Mild port job, valve work, cam, and and a few injector and pump tweaks. 3 in. Exhaust. .29 plunger pump with the screw turned almost all the way and it has just a slight haze of smoke. Runs very nicely. Running the piss out of it pulling a trailer we get 15mpg and beating around town it gets 20. This is with the tall gears the blazers had back in the day, something like 3.08 and a 700r4 trans that was mildly built.
 
great white said:
Don't forget: that engine had quite a few changes from stock, was twin turbo'd, and had the DS4 fuel tables populated out to 5 grand. It also only ran the salt and then went back on the trailer.

If you build it right, you can probably make a NA live up there, but getting the air in and out might be an issue.

You might be able to score a GEP 6.X off a gvt auction somewhere, or if you dig long and hard enough you may find a GEP somewhere else. Most of them are complete engines though and call for around the 2 grand mark.....
Click to expand...

You were correct in the earlier post, the High Volume oil pump at 4500+ RPM drained the pan, oil stayed up top, aerated the heads, and hydro locked the motor at 145mph. That was was Diesel Depot built motor that came with the HV Oil Pump, not Bills druthers but no time to change it before the race.

New motors from GEP will be used next year with redesigned turbos.
 
WarWagon said:
Gapless rings will keep your oil visibly cleaner and give you an edge for power.

See if you can get the prechambers ceramic coated. Keep the heat in the engine not in the cooling system.
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Where are you getting your rings? and how much are they? Do you coat the chambers, pistons tops and INSIDE the precup?
 
tanman_2006 said:
Which cam? 202?

Source Unknown
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I don't remember the specs but it was their smallest cam, he called it an rv or torque grind. I was very impressed with it. Totally brought the bottom end in much better and it pulls hard right out against the governor. It was a big difference from stock to this cam.
 
littleboy said:
I don't remember the specs but it was their smallest cam, he called it an rv or torque grind. I was very impressed with it. Totally brought the bottom end in much better and it pulls hard right out against the governor. It was a big difference from stock to this cam.
Click to expand...

I think that's the 202, I think it was built for military to add performance to a N/A heavy hummer.

Source Unknown
 
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