installed boost gauge only seeing 5psi
The Man
Joined: Aug 2001
Posts: 702
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From: Lee's Summit Mo.
Originally Posted by 12leavu
i should have been a little more clear with that. i pulled out of my driveway and laid down the gas pedal. ( alabama talk i guess)
im guessing the boost comes on around 3000. my rpm gauge only works when it wants to. the only other thing thats done to the car that i know of besides exhaust is.........it looks like the guy ripped out the airbox and bought k&n airfilters to go on every hose and zip tied them all together. i never gave the car time to spool up the second turbo. it boosted to much when i took off. it happened so fast it was atleast 12psi and when i drove it again it will get to 10psi at just 3/4 throttle. i haven't floored again since the first run. ....
rynberg is correct. there is a 2.5 in convertor necked down and welded into this giant exhaust...............edit ...guy i bought it from said there was an upgraded fuel pump. i will call him to find out the details on that.
"Sounds like you disconnected the reference line to the wastegate" by saying reference line, do you mean vacuum line? i havnt disconnect any lines from anywhere.
im guessing the boost comes on around 3000. my rpm gauge only works when it wants to. the only other thing thats done to the car that i know of besides exhaust is.........it looks like the guy ripped out the airbox and bought k&n airfilters to go on every hose and zip tied them all together. i never gave the car time to spool up the second turbo. it boosted to much when i took off. it happened so fast it was atleast 12psi and when i drove it again it will get to 10psi at just 3/4 throttle. i haven't floored again since the first run. ....
rynberg is correct. there is a 2.5 in convertor necked down and welded into this giant exhaust...............edit ...guy i bought it from said there was an upgraded fuel pump. i will call him to find out the details on that.
"Sounds like you disconnected the reference line to the wastegate" by saying reference line, do you mean vacuum line? i havnt disconnect any lines from anywhere.
Upgraded fuel pump without an upgraded ecu = 0 ! Auto's have little choice for fuelling above stock boost levels with the A/T ECU. It may run good for a while but you need to figure out why you're overboosting. Reference line = vacuum reference/line yes. Details on the fuel pump are pretty irrelavent, won't matter really, unless he just put in a "downgraded" pump which don't laugh, I've installed engines in cars where a previous owner got jipped by a "crap" shop that sold him some ebay pump, it fit but flowed about 4/5 of what a stock pump does.
i made me a restrictor plate for the exhaust system. i took out the flange gasket and copied it. in a 2.5 inch circle i drilled a bunch of 1/4 inch holes in it. drove the car, it was only making 3-4 psi. i opened all the holes in my plate with 3/8 drill, test drove and now it 9-10 psi. i guess this will work for now until i upgrade the computer and get me a front mount intercooler. thanks for the help.
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