MAP sensors - any recommendations?
Turbo Mini Forums

I'm slowly but surely making some progress with my Supercharged MPI.

Following advice from Andy500, I'm looking to install a MAP sensor - just wondering if anyone had any recommendations?

I was gonna plump for one of these:

Marelli MAP sensor, 250 KPa
Marelli MAP sensor, 300 KPa
Delphi MAP sensor, 300 KPa

Really just because they are listed on the Emerald web site.

The Delphi one is the cheapest @ £50.

Any suggestions/observations are most welcome.

"se ne estas rompita, ne ripar ĝi - supercharge ĝi."

Marelli ones are pretty standard and work OK. Can be bought cheaper than Emerald. Also work out what your max boost is and buy one to suit, the 1 bar ones are much cheaper (standard Sierra Cosworth)

i have the 3 bar cossie one

i heard the 2.5 bar calibra turbo one was reliable

Ive never had problems with any of them. And £50 new isnt expensive in anyones book.

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

Coolio - I'm gonna see what prices the local autofactors come up with.

Determined to get the MPI running properly this summer.

"se ne estas rompita, ne ripar ĝi - supercharge ĝi."

local motorfactors will likely be dear. Some sensors could be found second hand for little money.

How much positive pressure do you intend to use ?

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

I'm looking at running no more than 0.6 bar.

I take it there wouldn't be any issues if I bought a 3 bar MAP and never got anywhere near the 3 bar?

"se ne estas rompita, ne ripar ĝi - supercharge ĝi."

Other than it being a waste of money. See post above.

ta da

http://cgi.ebay.co.uk/Genuine-ford-coswort...=item2c541c84d8

Edited by MrOz on 21st Apr, 2010.

"se ne estas rompita, ne ripar ĝi - supercharge ĝi."

Ahh..but how much is he looking for postage ?? lol

I think Ive a Marelli 2.5bar one here too.

Or pretty much any turbocharged car will have one that will do. Be it Cossie, Subaru, etc

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

"se ne estas rompita, ne ripar ĝi - supercharge ĝi."

What is the point of a 2.5 bar MAP when you are only running 0.6 bar?

Or am I wasting my typing fingers, I think I am..................

Another thing if you are shopping around is be careful how they are described ie, the standard Cossie one is often referred to as a 2 bar sensor although it will only measure up to 1bar boost because it's working range is 0 bar(abs) ie, engine vacuum to 2 bar(abs) ie, 1 bar boost.
So make sure you know if they are being advertised as maximum boost or working range.
Hope that makes sense.....

Schrödinger's cat - so which one am I ???

Oddly...I seem to have two beside me. One must be a std Cossie one.
I'd guess thats 1 bar pos, and 1.5bar positive for Cossie and Esc Cossie respectively.

They both use a typical 3 pin mini timer plug.

Or I'm sure I'd have an old Subaru one which will have wires. They top out at about 1.17bar ( positive pressure )

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

cost
when i bought my 3bar it was cheaper than the standard cossie one

Edited by MrOz on 22nd Apr, 2010.

"se ne estas rompita, ne ripar ĝi - supercharge ĝi."

How much cheaper than £8.50 do you want, considering you were going to spend £50 at Emerald???????

Edited by MrOz on 27th Apr, 2010.

"se ne estas rompita, ne ripar ĝi - supercharge ĝi."