PCM Diagnostics & Tuning HP Tuners | Holley | Diablo
Sponsored by:
Sponsored by:

Re Calibrated MAP sensor to read Boost w/Stock PCM

Thread Tools
 
Search this Thread
 
Old 07-24-2004, 10:12 PM
  #1  
TECH Resident
Thread Starter
 
MNC5's Avatar
 
Join Date: Nov 2001
Location: Twin Cities
Posts: 862
Likes: 0
Received 0 Likes on 0 Posts

Default Re Calibrated MAP sensor to read Boost w/Stock PCM

Just wondering if varying the output of the MAP is possible i.e. allowing the use of the existing tables with changes allowing for boost..

I've seen a couple of people talk about 2 bar maps with a stock pcm so chime in a tell me how you did it ! Or where they did it
Old 07-25-2004, 06:06 AM
  #2  
TECH Regular
 
deezel's Avatar
 
Join Date: Nov 2003
Location: Dallas
Posts: 434
Likes: 0
Received 0 Likes on 0 Posts
Default

I have also seen a few posts to that effect. The impression I got was that you could use a 2-bar MAP sensor with the same voltage scale as the stock one... Then rescale the appropriate tables in the PCM with double the MAP range but half the resolution. I would be interested in seeing a write-up from someone who has done this.
Old 07-25-2004, 05:32 PM
  #3  
TECH Resident
Thread Starter
 
MNC5's Avatar
 
Join Date: Nov 2001
Location: Twin Cities
Posts: 862
Likes: 0
Received 0 Likes on 0 Posts

Default

TTT

Several members have turbo projects underway. Someone has to have some useful info, so spill it
Old 07-25-2004, 05:40 PM
  #4  
Adkoonerstrator
iTrader: (4)
 
XLR8NSS's Avatar
 
Join Date: Nov 2001
Location: Deep in the seedy underworld of Koonerville
Posts: 21,420
Likes: 0
Received 0 Likes on 0 Posts

Default

Contact these people. I believe they are the ones that can fix you up with the 2 bar map sensor.

http://www.starrperformance.com.au/?Starr_Performance
Old 07-25-2004, 06:27 PM
  #5  
FormerVendor
 
gameover's Avatar
 
Join Date: Jan 2003
Location: Melbourne, Australia
Posts: 525
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by deezel
I have also seen a few posts to that effect. The impression I got was that you could use a 2-bar MAP sensor with the same voltage scale as the stock one... Then rescale the appropriate tables in the PCM with double the MAP range but half the resolution. I would be interested in seeing a write-up from someone who has done this.
yes you can do this no probs by rescaling the input and effectively halving every MAP value inside the PCM (good luck) and then when your scanning you need to realise everything MAP is halved as well. Why not double the VE table size and add a fuel vs. boost table instead (and leave everything else as it is)?
Old 07-25-2004, 06:48 PM
  #6  
TECH Junkie
iTrader: (10)
 
GrannySShifting's Avatar
 
Join Date: Nov 2001
Location: Glen Burnie, Md
Posts: 3,942
Received 18 Likes on 12 Posts

Default

Work with the stuf thats already there from the GTPs
Old 07-25-2004, 09:23 PM
  #7  
TECH Resident
Thread Starter
 
MNC5's Avatar
 
Join Date: Nov 2001
Location: Twin Cities
Posts: 862
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by gameover
yes you can do this no probs by rescaling the input and effectively halving every MAP value inside the PCM (good luck) and then when your scanning you need to realise everything MAP is halved as well. Why not double the VE table size and add a fuel vs. boost table instead (and leave everything else as it is)?
I'd like to add a fuel vs. boost table. I know Not any HEX by which to do this, do you have experiance with this

I think Harlen has the right idea with 2 MAF's, but I've got a single turbo.. I could put them in series vs parallel



XLR8NSS

I'll have to try calling those guys. I've sent them a few emails but haven't gotten a response




All times are GMT -5. The time now is 09:20 AM.