Can programming allow me to keep HP gains from FPR
09-15-2002, 04:21 PM
#1
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Join Date: Jun 2001
Location: SW Michigan
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Can programming allow me to keep HP gains from FPR
I am limited by rules (scca solo 2) as to what mods are allowed. An adjustable fuel pressure reg. is one allowed mod. I see big gains from the FPR's but It is lost after the PCM "learns".
Is there a way, through programming, that I can maintain those HP gains. I have seen that 15hp or more is common.
Also a rundown of what is being done to the engine as it may/will affect tuning.
Bored .030 forged pistons (stock comp) balanced, milled heads .020 gasket matched heads and intake. Already as most free mods as they are legal. Also CAI, Headers, exhaust.
Is there a way, through programming, that I can maintain those HP gains. I have seen that 15hp or more is common.
Also a rundown of what is being done to the engine as it may/will affect tuning.
Bored .030 forged pistons (stock comp) balanced, milled heads .020 gasket matched heads and intake. Already as most free mods as they are legal. Also CAI, Headers, exhaust.
09-20-2002, 07:36 AM
#4
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Join Date: Oct 2001
Location: Stationed at Camp Lejeune, N.C. (But Going Home SOON!)- From New Jersey
Posts: 154
Maybe Yes
I have to diagree- to a point. I think you can gain HP and Torque through the whole RPM range through Dyno Tuning. I just did it! I am not an experienced tuner and got 20HP & Torque at the top and up to 30HP in some areas. I think that it is like balancing & Blueprinting your PCM. Every caris different and the tune that is in your car is Generic for the Whole county. Also Stock Programming differs from year to year. One of the best stock programs for an LT1 that I have seen, was in a 1994 Impalea SS 290RWHP. So although I think it is worth it others may not. Also some years back a local Race shop by be did one of the first tests of Accell DFI, he got 40RWHP over stock- it wasn't that the DFI is better than the stock computer, it was just that the car was now tunable.
Buy the Way- Where can you get a BLM locker?
Buy the Way- Where can you get a BLM locker?
09-20-2002, 08:20 AM
#5
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Join Date: Aug 2001
Location: Memphis
Posts: 152
Re: Maybe Yes
Originally posted by dayusmc
I have to diagree- to a point.
By the Way- Where can you get a BLM locker?
I have to diagree- to a point.
By the Way- Where can you get a BLM locker?
What were your disagreeing with?
Christian has BLM locker and Ken is looking at one for OBDII. It basically turns off learning. Because the PCM is trying to lean up the system after this fellow adjusted the fuelpressure, the improvement he attains is lost as the computer effectively 'zeros out' the fuel trims.
He could have acheive the same result with just a program change, not new parts were needed like the AFPR.
09-20-2002, 09:04 AM
#6
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Join Date: Oct 2001
Location: Stationed at Camp Lejeune, N.C. (But Going Home SOON!)- From New Jersey
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BLM Locker
Where can I get a BLM locker, how much are they and do they only give advantages to Big cam cars? Also is a BLM Locker software or hardware? I was disagreeing with the notion that you can not get any gains from reprogramming a stock PCM and get HP, if you don't have many mods. NOT on this post but the many others that have posted that on this subject.
09-20-2002, 10:11 AM
#8
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Location: Stationed at Camp Lejeune, N.C. (But Going Home SOON!)- From New Jersey
Posts: 154
Originally posted by Luna
It is just a code change. There isn't a OBDII version yet but truthfully, there are better ways to accomplish a propertune.
It is just a code change. There isn't a OBDII version yet but truthfully, there are better ways to accomplish a propertune.
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