PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Scaling MAF affect PE?

Thread Tools
 
Search this Thread
 
Old Feb 27, 2005 | 08:48 PM
  #21  
RedHardSupra's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Sep 2003
Posts: 1,904
Likes: 2
From: Laurel, MD
Default

yea, don't copy the DIV/0 because there's nothing there. so just copy the range starting with valid numbers, and paste it to the corresponding values in HPT editor.
Does anyone know how to make a conditional in Excel that would not print anything if it gets the DIV/0 error? this way people wouldn't try to write over their stock numbers.
Reply
Old Feb 27, 2005 | 11:24 PM
  #22  
God Forgives I Dont's Avatar
Launching!
 
Joined: Mar 2004
Posts: 233
Likes: 0
From: Dallas Texas
Default

Hey RedHardSupra just FYI I was able to get 3 MAF values to calculate over the 10K mark. Not that it really means anything, but......

I forgot I had it in 1st instead of drive and hit my REV limiter at 6500 RPM and I got the 10K+ values after like 6100RPM Give or Take.

Also I applied the tune back to the PCM but haven't been for a drive yet sense its late; but it did fire right up and idled extremly well. Thanks again!
Reply
Old Feb 28, 2005 | 07:40 AM
  #23  
RedHardSupra's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Sep 2003
Posts: 1,904
Likes: 2
From: Laurel, MD
Default

Yea, I got one doing 138mph once
On the beginning I was worried what am I gonna do for the values I don't have calibration for. Then i'm thinking, if I never got a single value for these ranges, then it will never need them again either, right? I hope i'm right, but just in case, I used the points I did get empirically and built a 3rd degree polynomial out of it and used that to create the values I was missing. You might wanna try that if you want the full custom calibration.
Have you compared dynair vs maf before and after the calibration? they're supposed to be closer, i was just wondering how much closer they get for people.
Reply
Old Feb 28, 2005 | 01:43 PM
  #24  
way2slow's Avatar
Staging Lane
 
Joined: Jun 2002
Posts: 57
Likes: 0
From: Lower Alabama
Default

Originally Posted by RedHardSupra
Yea, I got one doing 138mph once
On the beginning I was worried what am I gonna do for the values I don't have calibration for. Then i'm thinking, if I never got a single value for these ranges, then it will never need them again either, right? I hope i'm right, but just in case, I used the points I did get empirically and built a 3rd degree polynomial out of it and used that to create the values I was missing. You might wanna try that if you want the full custom calibration.
Have you compared dynair vs maf before and after the calibration? they're supposed to be closer, i was just wondering how much closer they get for people.
If you arent an excel guru could you just use your stock values in these places?
Reply
Old Feb 28, 2005 | 01:56 PM
  #25  
RedHardSupra's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Sep 2003
Posts: 1,904
Likes: 2
From: Laurel, MD
Default

i'm not an excel guru, i just know how to use google well
besides, the way the transpose function i used for the final calibration works, is an array formula. you don't enter one formula and then paste it over to a bunch of ther values, you actually first select a bunch of values, THEN you enter the array formula. so basically i can't do something to the effect of 'IF (ERROR!=0) THEN StockMAF[freq]'. So just use your brains and copy the good range, it will do you good to verify the values and such. Noone ever died of double checking
Reply
Old Mar 2, 2005 | 01:16 PM
  #26  
2001 Pewter WS6's Avatar
Restricted User
iTrader: (43)
 
Joined: Nov 2001
Posts: 2,669
Likes: 1
From: Pittsburgh, PA
Default

Link doesn't work and I can't get the file. Could someone please email it to me at metalam@upmc.edu

Thanks
Reply
Old Mar 2, 2005 | 02:36 PM
  #27  
RedHardSupra's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Sep 2003
Posts: 1,904
Likes: 2
From: Laurel, MD
Default

try it again from http://allmod.net/hpt/ for some reason the www. equivalent is very picky, and doesn't work for a lot of people
Reply




All times are GMT -5. The time now is 11:29 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE