DIY PROM Do It Yourself PROM chip burning help. No PROM begging. No PROMs for sale. No commercial exchange. Not a referral service.

PE % change to rpm help please

Thread Tools
 
Search this Thread
 
Old Mar 5, 2008 | 01:51 PM
  #1  
tjvz28's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2007
Posts: 58
Likes: 0
From: IA
Car: 91 Camaro Z28
Engine: 350
Transmission: T56
PE % change to rpm help please

hello im trying to get understanding on how the #s work in pe% change to coolant temp and rpm
on rpm stock it shows 0- 1200 rpm 3.13
1600 shows 6.25
2000 shows -5.47
then from here starts at 3.13 and climbs to 7.81 at 4400 rpm and then back to negitive
Im trying to understand how these work
what do these #s convert to for air fuel ratio
please help
Reply
Old Mar 5, 2008 | 01:56 PM
  #2  
Chris89GTA's Avatar
Supreme Member
iTrader: (2)
 
Joined: Feb 2002
Posts: 1,141
Likes: 0
From: Nashville TN
Car: 1989 Trans Am
Engine: 355 HSR
Transmission: Pro-Built 700r4 w/ 3400 converter
Axle/Gears: 10 bolt w/ 3.42 gears
Re: PE % change to rpm help please

PE does not convert to air fuel ration. PE (power enrichment) is fuel added over the standard fuel tables at WOT, using the PE vs Coolant and PE vs RPM tables (MAF tables)... it adds PE vs. Coolant and PE vs RPM fuel calcuations and equates an injector pulse to provide that fuel amount. It is only used at WOT, and allows you to add more fuel by temp and RPM. The coolant table changes fueling at the temperature for ALL rpm... and the RPM tables changes the fueling for ALL coolant temps.
Reply
Old Mar 5, 2008 | 02:17 PM
  #3  
tjvz28's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2007
Posts: 58
Likes: 0
From: IA
Car: 91 Camaro Z28
Engine: 350
Transmission: T56
Re: PE % change to rpm help please

so how do these #s work when u have positve lets just say 10 does that mean 10% more
Reply
Old Mar 5, 2008 | 05:23 PM
  #4  
JP86SS's Avatar
Supreme Member
20 Year Member
iTrader: (1)
 
Joined: Apr 2004
Posts: 3,180
Likes: 3
From: Browns Town
Car: 86 Monte SS (730,$8D,G3,AP,4K,S_V4)
Engine: 406 Hyd Roller 236/242
Transmission: 700R4 HomeBrew, 2.4K stall
Axle/Gears: 3:73 Posi, 7.5 Soon to break
Re: PE % change to rpm help please

Tuning guide, chapter 5.
Will explain it well.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
eightsixseven
Tech / General Engine
2
Dec 16, 2024 01:50 PM
jklein337
Tech / General Engine
2
Sep 19, 2018 06:23 PM
86IROC112
TPI
12
Aug 21, 2015 07:20 PM
forstral
Transmissions and Drivetrain
1
Aug 19, 2015 03:20 PM




All times are GMT -5. The time now is 01:38 AM.