greasess

iTrader: (1)

I have a gen 3 4.8 and a gt45 turbo and I may run as high as 20 psi for boost on e85. I know there are some gm MAPs that are 2.5 or 3 bar. I would like to hear from some people about what MAP they use and your experience. I would like to know, part#, did it come with appropriate info for whatever tables I have to alter in efi live for it to be accurate, is it a direct fit on an LS6 manifold, how much did it cost? Thanks in advance! One other concern I have is that I have a factory t56 with about 100k on it. It still shifts perfect and has no problems. I know a t56 isn't usually the week link but could I be ok since I'm using 17 inch DRs and a "750" ftlb rated centerforce clutch? If I put 275 60 15s on the back is it a matter of if or when?

Johnv

I use the dpecorvettes 2.5 bar sensor, not the cheapest , but works very well. Great resolution and easy to tune.

JustAFooL

iTrader: (45)

3 bar from efi source. 35$ and proven to work.

greasess

iTrader: (1)

Does the efi source MAP come with voltage offset table info? I don't need issues like I had with my SD80 injectors. I still don't know if I have the right data for 58 psi fuel pressure.

Shoaf85

iTrader: (9)

A lot are using the ZR1 map sensor including myself with great results.

mightybird

im looking for a direct fit one will the zr1 fit on my ls1 block ?

JustAFooL

iTrader: (45)

Yup, it's posted on their website

Shoaf85

iTrader: (9)

Gotcha! No unfortunately the ZR1 sensor is only direct fit for ls3/7 style int manifolds. You would need to remote mount it and run a vacuum line to it.

mightybird

thanks for the heads up ! who does make a drop in map this will work for 20+ lbs of boost ?

JustAFooL

iTrader: (45)

lol, as already stated... EFI source ls1 style 3 bar map. It's a plug and play. It will support 3 bar tuning which is ~ 28psi

mightybird

my bad lol thanks ! its on its way !!

01ssreda4

iTrader: (96)

I have to chime in on this one, Ive had 2 out of 3 defective bought new. I do not recommend anything other then GM now.

truckdoug

iTrader: (25)

what was wrong with them?

Cwarta

iTrader: (12)

Zr1 map on both my cars, oem quality, cheap. Win win

01ssreda4

iTrader: (96)

First one was very limited in its reading, would span like 50-70kpa and thats it. Replaced it and now the new one is acting goofy (VE corrections werent being predictable) then it maxed at 105kpa in boost, so no positive pressure reading. Frustrating as hell. Swapping to ZR1 map sensors.

truckdoug

iTrader: (25)

Word, that sucks.

Anyone here using the newer Bosch map/iat combo sensor? Seems kinda nifty.

stevieturbo

China.

Modchevelle

iTrader: (9)

Holley....Made in China for Holley

truckdoug

iTrader: (25)

lol its always china. some american company orders a copy of a part to sell to some other americans and somehow it's fault of an entire nation.

i blame o̶b̶a̶m̶a̶ trump

laytoncamaroz28

iTrader: (10)

I used the eBay $35 3 bar sensor and the first one lost contact inside the sensor and just died on street. I emailed em and they replaced it for free and it lasted two years and now on my last race it died as soon as it hit 14 psi, started it back up and tried racing again same thing. So I swapped to the duramax 3.3 bar map. Works great so far