RS2 EM/Turbo on S2

[stevieyid]

I have an RS2 X member with intercooler, RS2 Manifold, RS2 Turbo that im hoping to get fitted soon. One thing i have a 3'' longlife exhaust with cat bypass pipes but with standard downpipe is this going to be a problem when i come to fit the RS2 bits?

[quattro20v]

Search for VMAP to find distributors of those - bout 150 dollars last time I checked - hilarious I know... Been trying to find a cheaper 3bar alternative but no dice so far.

Paul i'm runnig with this:
http://cgi.ebay.co.uk/ws/eBayISAPI.d...ies%26_fvi%3D1

Little cheaper and no proplems.

[Jamo]

Paul i'm runnig with this:
http://cgi.ebay.co.uk/ws/eBayISAPI.d...ies%26_fvi%3D1

Little cheaper and no proplems.

Are you running those 100% no problem?

[S2central.net]

I know what that sensor is and its about 10 bucks MAX... Someone is having a laff at that price. I chose not to use it as the packaging is pretty NON ideal for our application - I've only seen it in that format.

Now the weird thing is that MOTO also do a 250kPa sensor (7 quid approx) - in the exact same looking package as on the VMAP - got me to wondering if the VMAP boy(s) convinced Moto to make a special batch of the 300kPa device in that package... Or it could just be a common package that was cloned / copied in the far east with different internals.

I'm using the Moto 250kPa on the 3B ECU upgrade that I'm working on... Using similar daughterboard idea to VMAP as a nice generic way to mount it in the right place.

[Jamo]

S2central.net = Mythbusters

I'm looking for a 400 kPa sensor.

[S2central.net]

NFW Jamo - you don't need 3bar boost in this lifetime... LOL

Though I guess the problem is what happens when you want 2.2bar of boost ==> 3.2bar MAP...

I suspect the VMAP is your only (expensive) option there.

[Ross]

I've been trying to look into this as well, as I'm shocked how extortionate the 3bar MAP sensor's are.. the one you have from my 3B ECU paul, cost me £165!!

I'm guessing the key is trying to find out where these things come from; surely there must be one factory (probably somewhere in the East) that manufacture these things? Any clue's on the board as to who?

[S2central.net]

Its all been blacked out and/or potted...

I was amazed at the similarity in the Moto 250kPa MAP (4250AP) to the VMAP sensor, but they couldn't get it to work in 3bar mode - unless they know some tricks. I recall there are some pins on the Moto device which are declared as special use or calibration or something - they might be the trick...

I could have another look at the VMAP one to see if the unused pins track anywhere meaningful - its hooked up to some programmable logic or PIC or somethin which I assume controls the ranging... but the device must have 3bar dynamic range (absolute) for a 3bar application.

Working on a different ECU hack tonight though (shhhhhhhhhhhhh).

[Ross]

Hmph, thought that might be the case... Was it a VMAP in my old ECU Paul? Wondering if that's the old direct-replacement option, or if there's something else available.

Did some research on the VMAPs, trying to get some direct, but I got pointed towards MRC Tuniing (who supplied that one) - 175EUR RRP aparrently, wish I'd known that when we still had 1.4EUR - £!

The only cheap option seems to be an external MAP sensor, sell them @ 034 for $89 and I've seen the same for $60 elsewhere.

[4WheelDrifter]

I know someone who used a 3 bar MAP with 2.7 bar boost.

[Bram]

I am a happy customer with a VMAP sensor. It was a direct replacement.

[GazzaG60]

can an external GM unit not ne used?

or like said above just use a 3 bar get most of the map correct. its still not guesswork above that.

i know that its better done properly but what not broke doesn't need fixing.