relevent facts:

z6
greddy kit (19t ~5.5 psi on stock wastegate with a drag IC, measured at the IM)
profec b spec 2
neptune

settings:
low boost:
set 48%
gain 35%
set gain 130

this setting is great, it holds 15psi (@ 6200ft) solid.

when i try to dail in the high boost setting it will not go over ~17 psi.
high boost settings:
set 100%
gain 30%
set gain 175

i did alittle research but couldnt find anything on it.
any help or suggestions would be great.

if any other questions need answered, let me know (i always forget a small bit of info that is crucial)

thanks in advance


Modified by llewsirc at 8:05 PM 7/20/2005

 

I remember reading the boost controller can only double the psi of the wastegate spring rate. Is your wastegate spring 8.5 psi??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stinker504 &raquo;</TD></TR><TR><TD CLASS="quote">I remember reading the boost controller can only double the psi of the wastegate spring rate. Is your wastegate spring 8.5 psi??</TD></TR></TABLE>
it is the stock wastegate spring
it is about 5.5 after the IC, when measured at the IM

i believe that neptune seeing 12psi absolute, so that would make it ~ double the stock wastegate spring.

can anyone else confirm this?
has anyone ever pushed over double the boost with a spec 2?

is there any other springs that i can get for the greddy wastegate?

 

Unfortunately I'm in the same position you are...only with a b series kit.

I ordered a new actuator from Greddy that is a minimum of 11psi. Only problem is that it doesn't even come close to bolting up. I'm thinking of cutting a new flange and having it tack welded to the actuator so it'll bolt up. Then I have to bend the rod and re thread it because the hole that attaches to the flapper is way off. Damn these universal actuators!!!

I'm hitting 16.5psi and dropping off.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 99blusi &raquo;</TD></TR><TR><TD CLASS="quote">Unfortunately I'm in the same position you are...only with a b series kit.

I ordered a new actuator from Greddy that is a minimum of 11psi. Only problem is that it doesn't even come close to bolting up. I'm thinking of cutting a new flange and having it tack welded to the actuator so it'll bolt up. Then I have to bend the rod and re thread it because the hole that attaches to the flapper is way off. Damn these universal actuators!!!

I'm hitting 16.5psi and dropping off.</TD></TR></TABLE>

wow.
that sounds like alot more work then its worth.

i think i will have to get a new boost controller.


does anyone know of a way to get the profec b spec 2 to boost more then double the stock wastegate?
is there anything i can do to get the stock wastegates boost level up from 5.5 to ~9-10psi?

im tryin to get back on the dyno, tomorrow. any help would be great!
thanks in advance.

 

is this an 18g you are talking about? I don't think it can boost more then 17PSI anyway. Even if you could, it would blow onl hot air anyway so what's the point . Not raggin on the 18g, but I think you maxxed it out

 

i think he said it was the 19t for the d series. and even so i dont think that it has too much more left in it than 17psi.

and one way to make the stock actuator boost more is to shorten the actuator arm . take the actuator arm off the flapper. loosen the nut and shorten the rod then put it back together.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B16Civic93 &raquo;</TD></TR><TR><TD CLASS="quote">i think he said it was the 19t for the d series. and even so i dont think that it has too much more left in it than 17psi.

and one way to make the stock actuator boost more is to shorten the actuator arm . take the actuator arm off the flapper. loosen the nut and shorten the rod then put it back together.
</TD></TR></TABLE>

according to the compressor maps, it should be good to ~21-22psi
plus 17 is what im seeing on the guage, im only running 12 psi absolute.

ill try the arm trick and get back.

thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by llewsirc &raquo;</TD></TR><TR><TD CLASS="quote">
ill try the arm trick and get back.
</TD></TR></TABLE>

i took my actuator arm off.
i twisted it all the way in (i twisted it clockwise with the actuator facing down)

now the guage shows ~11 psi (6000ft altitude) with no boost controller :0

as soon as my motor cool off, ill go hook up the EBC and try it out.

thanks

 

Nice keep us updated on the EBC.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stinker504 &raquo;</TD></TR><TR><TD CLASS="quote">Nice keep us updated on the EBC.</TD></TR></TABLE>
https://honda-tech.com/zerothread?id=1315876

i dont think its the EBC, i think the springs is to week.