3 bar map sensor....

hi all.....

was wondering where to get one from?
will i be ok getting one of the 35 quid ones off ebay.... Or would i be better buying a genuine cosworth one which will be possibly double the price??

nick

Standard 20VT one fits, doesn't it?

can someone confirm this? Think you may be thinking of FPR...
pretty sure 20vt doesn't have map sensor?!

nick

20vt is MAF as above getting confused with FPR

Get a genuine MAP sensor they are about £60. Do not buy ebay hacklash jobby.

cheers j!

There are 3bar cosworth ones (2 bar absolute) which only allows 7psi (.5bar) more than oe and there is is also a 4bar one available

I would check with flea as didn't he recently map a cosworth to 32psi? which is over 2bar (absol) pressure so maybe it had the higher 4 bar sensor

3bar is absolute pressure and 2 bar is gauge pressure. I know sorry

what he said - 3bar absolute - 2 bar gauge

but there is a 4 bar absolute that is available (3 gauge), I guess the resolution will be lower but I am not sure how much of a issue this would be. Vas used to have one but I havn't seen him around for a while.

hi saint.... Long time no speak..
i'm definitely not going above 2 bar boost so the 3bar absolute will be fine!
probably won't get above 1.7 bar... Depends if the turbo is still efficient up that high?
as you know i'm not entirely sure to the EXACT spec of my compressor wheel?

Nick

But... if you put a 3-bar sensor in, you're going to have to map instantly - it probably won't even idle well. The one that's in there will give a 0-5v reading for 0-2.4 bar, so a touch under two volts at atmos. A 3-bar sensor will give only about 1.7v at atmos; without recalibration in the ECU it's going to believe there's less pressure than there actually is. It's going to be pretty lean...

I'm sure I'm preaching to the choir here - but just in case anyone's reading that hasn't thought about this!

yes this is what's happening buddy.... Having a base map put in place on saturday.... 3 bar sensor not being installed until full mapping!

Nick