CoopDog

iTrader: (17)

I'm trying to figure out which MAP sensor to use, I'm sure somebody out there could tell me right away.

The engine is a stock bore (3.905) LS1, 8.5:1 compression, Vortech YSi through a custom air to water cooler, through an un-ported FAST 78/78, all through 3 inch tubing. I kept everything to 3 inches to keep the boost up. I may clean up the runners on the intake though.

Thanks!

Canbarelygo

well map sensor selection all depends on boost i suppose.

the bar represents one atmosphere which is 14.75 psi or there about which is the atmosphere we are in so a 2 bar would be good to 14.75 psi of boost and a 3 bar would be 29.xx.

i dont remember the exact measurement of an atmosphere but its in that ball park so its all boost relative

daws222000

iTrader: (6)

Pretty much what i've read is 2 bar up to 15 lbs of boost, 3 bar over 15 lbs of boost i think up to 30. I just bought a 3 bar with the harness from speed inc its plug in play.

sujomatt

iTrader: (7)

yea i have a post out about it as well

u may be able to get away with the stock map sensor like i did. t67 @ 10psi, did just fine.

LS1x2

iTrader: (11)

It depends on how much boost like others said. You could stay 2 bar for the 15-18psi range on a centrifugal if you want since boost aligns with rpm. I would definitely go 3 bar for anything more.

CoopDog

iTrader: (17)

Thanks for the input. As long as the 3 bar can deal with the one and two bar range, I'll definitely stick with the 3 bar.

Canbarelygo

if you have it then i dont see a reason why it shouldnt work