I am trying to get 35 psi of boost on my race car but I can only get 28 or so on my greddy profec. I need a boost controller, something that can give me 2 stages and at least 35psi of boost. Can anyone suggest something?

 

my profec spec 2 is good for 43 psi,
the worl d electronics one is good for about that high too , but like $1200 , its gear based too .

 

Innovative turbo's multi-stage(six stage) boost controller.

 

what wastegate spring are you using? I've seen the profec do 35psi before on a racegate with the 15psi spring.

 

that could be it too , i know they at least go to 32 on the spec 1's

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jared &raquo;</TD></TR><TR><TD CLASS="quote">what wastegate spring are you using? I've seen the profec do 35psi before on a racegate with the 15psi spring.</TD></TR></TABLE>

Dittto, if you are using a sissy spring, that maybe the reason.

 

i am using the turbonetics racegate

 

which spring is in the wastegate?

 

You'll probably need at least a 15-20lb spring to get 35psi out of it. Try cranking the adjusting bolt all the way in and see how much it makes.
Do you have a computer that will read to 35psi? If you have a regular ecu with a 3 bar map sensor, then at anything over 30psi you will be running on the same row of cells. This means the same fuel at 30psi and 35psi. Which means if you tune for 30psi and run 35psi, you get to change you pistons!

 

how do you knwo what size spring to run for what kidna boost ? i have the .65 bar in mine now . but wanna go in the 20's with it soon , how do you know what size spring to use

 

thanks guys

 

The last car i dynoed with a profec b and 35mm tial with a 9psi spring, only made 20psi with the profec all the way up. It depends on the wastegate. Some wastegates have bigger diaphrams and will hold more boost than others with the same spring rate.

 

I have the 15 lb spring I believe but Ill check again. I run a 5bar map sensor with a haltech. I will try all to get the extra boost , if not what boost controller do you recommend.

 

I have the tial standard 35mm , i have the profec spec 2 though.

 

Are you running an E6K or E11?

 

e6k

 

I wasn't aware the E6k would use a 5 bar map sensor. Is there a firmware update?

 

I had to send the unit to australia to get it modified