boost question

mastergrader007 · 08-02-2008, 09:10 PM

hello everyone,
Just installed a new boost gauge in my 88 supra and was just wondering what the vaccume pressure should be. the reason i ask is because in 1 spot it runs about -2 psi and then another it runs about -20 psi. huh

paulmicin · 08-03-2008, 12:55 AM

where are these two spots. i think the best place to run it off would be where the stock boost sensor is.

supradrift · 08-03-2008, 03:33 AM

i dont know if it helps you but mine runs at about -20

mastergrader007 · 08-03-2008, 11:30 AM

well im still new to the whole "turbo" thing, but the first time i hooked it up, was on the line near the stock boost sensor, (-2) then i ran it off the line to my aftermarket BOV (-20), my stock gauge was in mmhg and my new one is in psi. also, my mmhg gauge reads -2 so it doesnt make sense to me that my new one reads -2psi when hooked up at the same place. catch what im sayin?

08-02-2008, 09:10 PM	#1
mastergrader007 3" Exhaust Join Date: May 2008 Location: Ontario, Canada Posts: 79	boost question hello everyone, Just installed a new boost gauge in my 88 supra and was just wondering what the vaccume pressure should be. the reason i ask is because in 1 spot it runs about -2 psi and then another it runs about -20 psi. huh Last edited by mastergrader007; 08-02-2008 at 09:27 PM.

08-03-2008, 12:55 AM	#2
paulmicin 3" Exhaust Join Date: Oct 2007 Location: Norwalk, Ca Posts: 52	where are these two spots. i think the best place to run it off would be where the stock boost sensor is. __________________ 1989 5 speed turbo Koyo radiator Spearco intercooler HKS bov Greddy e-01 boost controller 245's all around Slotted + drilled all around 3" straight piping turbo-back, 4" tip Lowering springs HKS mushroom air filter

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08-03-2008, 03:33 AM	#3
supradrift 3" Exhaust Join Date: Jul 2006 Location: connecticut Posts: 92	i dont know if it helps you but mine runs at about -20

08-03-2008, 11:30 AM	#4
mastergrader007 3" Exhaust Join Date: May 2008 Location: Ontario, Canada Posts: 79	well im still new to the whole "turbo" thing, but the first time i hooked it up, was on the line near the stock boost sensor, (-2) then i ran it off the line to my aftermarket BOV (-20), my stock gauge was in mmhg and my new one is in psi. also, my mmhg gauge reads -2 so it doesnt make sense to me that my new one reads -2psi when hooked up at the same place. catch what im sayin?