How to setup the right amount of boost ?

toprpm · Post by **toprpm** » Wed Sep 13, 2006 4:21 pm

Hi ,

I got a turbotech manual boost controller (eBay) and was wondering how to set it to run 9psi - 10psi..

I got an external boost gauge and it says, 0 ||||| 0.5 ||||| 1.0 ||||| 1.5(BAR)

Now zero is in the middle and it has -0.5 ||||| -1 at the bottom. Hope u understand what i mean...

when the car is on idle the needle sits on -0.5 (at the bottom of the gauge).
When turbo kicks in the needle shoots to 0.5(BAR), what does that mean? i thought the et's were stock 7psi ??

Now if i want to set the boost to 9 - 10psi (using a turbotech boost controller) where would the needle point ?? would it go above 0.5 (BAR) ??

Any info or tips would be appreciated..

And also if someone can explain the readings of these external boost gauges...

Thankyou

Paul Smith · Post by **Paul Smith** » Wed Sep 13, 2006 4:24 pm

.5 bar is roughly 7 psi. 1 bar is 14.?? psi. Set it to .8 bar. That should do.

toprpm · Post by **toprpm** » Wed Sep 13, 2006 4:36 pm

ok sounds good , will do that...

Now do i have to drive the car to see the amount of boost , or can i just let it idle and rev it to check the setting ???

Post by **shanec86** » Wed Sep 13, 2006 4:52 pm

you have to drive it to check the boost

7psi = 0.48bar
10psi = 0.68bar
12psi = 0.82bar

can i ask why you have a boost guage which reads in Bar if you cant understand it?. I asked my mate the same thing when he bought it. He always sits there converting it in his to understand what it means. i said why have bar if you gotta convert it in your head while driving

SammyET · Post by **SammyET** » Wed Sep 13, 2006 4:52 pm

You have to drive it and load it up right through the revs to check.

angel · Post by **angel** » Wed Sep 13, 2006 5:43 pm

i have a turbotech, they are really good. but they only take a small adjustment to make a big difference in boost. start by undoing the nut, then turn the bolt clockwise (ie tighten it,) about 1/4 of a circle if that, then tighten the nut back up and go for a drive. if it boosts too high then turn it anti clock wise, if to low then tighten it more. remember only small adjustments

good luck. deffinately a great buy.

toprpm · Post by **toprpm** » Wed Sep 13, 2006 6:53 pm

OK , sounds good . ok the first question is :
How com ei got a boost gauge that shows BAR ??
OK i am new to the turbo scene and i was told to get a boost gauge, i didnt know which one to get... ANY SUGGESTIONS ???

Now , whats the maximum boost i can run with out damaging the motor ???

Panda_ET · Post by **Panda_ET** » Wed Sep 13, 2006 7:08 pm

u have a metric gauge and cos most people are neanderthals we still read in psi unless u deal with mainly japanese stuff all my stuff is in bar

photoglossy · Post by **photoglossy** » Wed Sep 13, 2006 7:16 pm

If your engine is standard i wouldnt be running over 0.7 bar. Get a decent inercooler and it should be able to see 1bar no worries.

Paul Smith · Post by **Paul Smith** » Wed Sep 13, 2006 7:26 pm

don't forget the overboost valve.

toprpm · Post by **toprpm** » Wed Sep 13, 2006 8:05 pm

ok , ive got an intercooler 600*300*76 , hopefully a T25G will settle in the engine bay.. SOOOON

And also i took the overboost valve out and plugged it.. (SEALED IT)

Now, Panda_Et , would u be kind enough to tell me whats a right boost gauge i have to get , and also a pic would really help...

And also when i install the turbotech and drive it(LOAD) to check the boost level , do i have to floor it ??? If yes would that damage the motor ???

Obviously i will have to do it couple of times to check it out ..

thanx guys

photoglossy · Post by **photoglossy** » Wed Sep 13, 2006 8:18 pm

toprpm wrote:whats a right boost gauge i have to get , and also a pic would really help...

And also when i install the turbotech and drive it(LOAD) to check the boost level , do i have to floor it ??? If yes would that damage the motor ???

Obviously i will have to do it couple of times to check it out ..

thanx guys

Your gauge now is fine. You will get used to it quick.

When you put the controller on your car, make sure it is at its lowest setting. Go for a drive and you should see that it is at 7psi or so. You WILL have to floor it to get the boost up. If you want more boost, all you gotta do is wind it up a small amount, go for another drive to test it. Once again you will need to floor it to see what it is at.

Keep on moving it up slowly to your disired setting. If you hear any irregular noises, STOP, wind the boost back a notch and keep it there.

toprpm · Post by **toprpm** » Thu Sep 14, 2006 1:38 pm

ok then will do it... thanks guys for all the help and info .....

will keep yous updated ....