slowater427

anybody out there have some experience with the greddy PRofec B-spec 2 boost controller?

i just installed it and started to tune but i cant seem to figure out how to actually set a max boost. i havent built my internals yet so i want to make sure i dont exceed around 8 psi.

right now im just letting off the boost once my warning goes off at around 7 psi then with reaction time it records around 8-9 psi. im wondering if there is a simpler way to set boost.

all advice will help alot. tia.

splitime

What type of WG? What is your stock PSI? What are you putting your settings to? How did you hook up the WG?

more info

jure

i've got the same problem...it's ******* hard to adjust
i've got problems with SET and SET GAIN, what's the difference?..I read manual, but i would like to hear this of someone who know how to adjust it..

slowater427

its an external wastegate ..

how can i know what stock boost is at?
its a t3t4 turbonetics turbo on a b16a2.

while i was tuning the bc it definitely felt like it wanted to boost alot higher than 10-11 psi.
im just trying to control it. ive got hondata s200 as well.

the boost valve (nc) is hooked up to the compressor housing on the turbo/ side port on wastegate

and the other port on the boost valve (com) is hooked up to the vaccuum line on the top of the wastegate.

im sure its hooked up right. so how can i set min/max boost?

ive got the following set right now:
( gain) boost consistency: 16%
(set gain) start boost: 3 psi
warning : 6.5 psi
limiter : 5%
boost ( valve duty) : 35%


Modified by slowater427 at 3:44 PM 10/4/2005

splitime

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slowater427 &raquo;</TD></TR><TR><TD CLASS="quote">its an external wastegate ..

how can i know what stock boost is at?
its a t3t4 turbonetics turbo on a b16a2.

while i was tuning the bc it definitely felt like it wanted to boost alot higher than 10-11 psi.
im just trying to control it. ive got hondata s200 as well.

the boost valve (nc) is hooked up to the compressor housing on the turbo/ side port on wastegate

and the other port on the boost valve (com) is hooked up to the vaccuum line on the top of the wastegate.

im sure its hooked up right. so how can i set min/max boost?

ive got the following set right now:
boost consistency: 16%
start boost: 3 psi
warning : 6.5 psi
limiter : 5%
boost ( valve duty) : 35%</TD></TR></TABLE>

Stock boost is controlled by the spring in your WG. Start out by running from compressor to the lower WG port. Then boost..... that'll be your stock boost setting. (basically just unhook the greddy solenoid system... to figure out stock boost)

Next, run compressor housing to NC... then COM to theupper port, the bottom port can be T'd into the line going from Compressor to NC. Make sure to leave the 3rd port open on the solenoid.

Now start off by putting the first adjustable (silver ****) to 0%.... and make sure it still boosts at that stock spring rate.

edit: i'll post up more info, as i can think of how to post it in a way that makes sense