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#1 (permalink) |
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Diesel Enthusiast
Join Date: Jun 2006
Posts: 5
iTrader Score: 0 reviews
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RPM LIMITS, Fueling Tables, and Torque Tables.
I have a couple dsp files I am trying to bring the rpm limits up, I have all the fueling tables turned up accordingly through the rpm range. With the switch in position 1 or 2 it will rev to 4500, but when put in position 3-5 it only revs to 3500 like stock. All the tables are identical through all the tunes. Any ideas? Also as a side note, my display on my V2 quit lighting up?
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#2 (permalink) |
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Diesel Master
Join Date: Jul 2007
Location: Queen Creek, AZ
Posts: 3,587
iTrader Score: 0 reviews
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Is this 4500rpm under load or in neutral revving it? I dont see the need to spin more than 35-3600rpm on a stock engine/turbo
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2003 Chevy RC/LB that's missing an engine 2006 Chevy Colorado I5 DD. Not stock. |
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#4 (permalink) |
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Diesel Master
Join Date: Mar 2007
Location: Uitca, NY
Posts: 2,533
iTrader Score: 1 reviews
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Really? Works great for me.
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ROOtS: 93 2500 4x4 rclb. 5 spd 97-up block with intake off/ IP off the 93, IP turned up, timing advanced slightly, manual waste gate running about 14psi through a gm-8, 3 inch exhaust straight through from the turbo to the 5 inch stacks behind the cab. ........ That old gal has been gone quite a while now and i still miss her :-( 01 GMC 2500hd ecsb Dmax/Alli. 4" exhaust to 5" single stack,EDGE Insight CTS, EFI Live running Nick tunes, Suncoast stage IV, Kryptonite center link/tierods, PISK by ME, 305/55/R20 Cooper Zeon's on Rockstars. Eaton E-locker. So cal stage I heads, and a little bit of laughing gas. 07.5 2500hd LMM, LTZ, CCSB, Some kinda beefy tie rods and PISK, S475 over stock by Extreme Pile Racing (EPR), Big dipper tranny, 40% over dipper sticks, ATP tuning, Air Dog Lift pump. |
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#5 (permalink) |
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Diesel Master
Join Date: Aug 2005
Posts: 4,667
iTrader Score: 0 reviews
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Stock engines(espescially the LB7) tend to choke out above 3300 or so and going higher sees a pretty big drop off in the HP output at those levels. Can they do it, yes. Is there a huge gain in doing it, no. I've spun mine up to 4800 a few times, but in all honesty it just made alot of noise without alot of setting me back in the seat. Got it back shifting at 3250 and it pulls alot stronger there.
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