1 bar MAP?

Reply Subscribe

Thread Tools

Search this Thread

May 31, 2007 | 05:12 PM

general23cmp

Thread Starter

Launching!

iTrader: (1)

Joined: Mar 2005

Posts: 205

Likes: 3

1 bar MAP?

I was talking with a guy that programs ECMs, and he stated that for boost levels of 7-8psi, that he can easily program the computer to run with a 1 bar MAP sensor. How is this possible? How can the computer detect the boost?

This guy is a pro, so I am sure there is something I am missing, but I don't know what.

Thanks.

May 31, 2007 | 05:14 PM

Jake@EPP

FormerVendor

Joined: Mar 2006

Posts: 1,540

Likes: 0

From: Hell AFB

A 1bar system will only read 0-100kpa , this is NON boost. A 2bar is probably what he meant, a 2bar is good for 14 or so psi of boost, this is how the computer can detect it.

May 31, 2007 | 05:25 PM

98turbls1

TECH Fanatic

iTrader: (17)

Joined: Nov 2005

Posts: 1,927

Likes: 2

From: Central Oklahoma

Quote:

Originally Posted by general23cmp

He's probably talking about you not having to upgrade to a 2 Bar Map because he's going to tune it with the MAF...

May 31, 2007 | 05:29 PM

Speed

TECH Enthusiast

iTrader: (33)

Joined: Jul 2002

Posts: 609

Likes: 0

From: Ok

I'm guessing he's talking about leaving it a MAF system. I ran fine on MAF but I like the drivability of the SD better and it does the heart better to be able to log the real manifold pressure.

Jun 1, 2007 | 06:46 PM

taillights

Staging Lane

iTrader: (2)

Joined: Oct 2006

Posts: 80

Likes: 0

I tune my car with a 1bar in it but tune it with the MAF still on it and I am currantly running 7to8lbs of boost with no problems. But if you intend on running more boost it is wise to use a 2or3bar map Or you can turn itup at the track and scan it and adjust as needed.

Jun 1, 2007 | 06:58 PM

Boostaholic

TECH Addict

iTrader: (4)

Joined: Sep 2002

Posts: 2,542

Likes: 0

From: Boise, ID

You can program a boosted car on low boost to work with a 1 bar map, it will just get super rich when it first comes onto boost then go back to a normal AFR as boost goes up to full, which is not ideal

picture a afr going from 14.0 as you punch it down to 9.8 as you reach 1psi boost and back to 11.5 when you get to 9psi

ive done it before but its not the best idea, and tuning is a very important part of not blowing up your forced induction project

Reply Subscribe