ric3 daddie

sup everyone,
i have a 94 cx hb with a d16z6 all stock with greddy turbo kit with small intercooler

blACK BOX AND 255 fuel pump and some extreme boost controler for an ecipse

my boost contoler manual it sucks it turns up b oost with like 1/4 turn and really

senstive but now i got it set to jump to 8 and after about 5000-6000 it falls to

about 5-6 it just jumps then falls and its NOT THE SMALL TURBO my bro has the

same kit and his boost goes to 8 and stays solid all the way to red line. this sucks

it has a nice surge then falls flat on its face on the free way it holds 9 psi nicely no

boost leaks i have a blitz blow off and my car ran 13.552@100.95 with a 2.195 60

ft et. with boost spiking at 10 and falling to about 6-7 and 99 octane fuel and 1

degree retarted timing. my kit has been on a few cars its been used alot umm

wonder if it WORN or something anyone know any help will be appreciated. any

more info needed jusx ask me i just cant think of anything ealse to tell u.

thanx..
sowwie for the rum on sentances im failing english as you can see!!!!


[Modified by ric3 daddie, 8:46 AM 12/8/2001]

5thgen

Man, I kinda have the same problem. Mine peaks to 8 and drops to about 6-6.5. But yeah, its weird because I can hold boost in 4th or 5th (freeway) at 8psi for however long I want to without melting anything of course. Maybe its my bov (type S), who knows. Oh, btw I've double clamped all my intercooler piping...does anyone know where to get thicker hose clamps from?

ric3 daddie

you using the same kit??? my bro has the same kit with ecipse intercooler and type s blow off he holds fine, his stuff is all bought nw about 3 months old what u got?? is ur kit new when it did this ??
is your blow off valve half way open at idle? i know its not suposed to be but i cant get mine to cause the spring is worn out could it strt to leak at the top or something???
anyone got a answer?


[Modified by ric3 daddie, 8:25 AM 12/5/2001]

5thgen

its the greddy kit with the small intercooler for the same motor. Mine is about 3 months old too. My bov opens a little at idle, but once on the throttle just a little it closes shut. Yeah the problem sucks though.

5thgen

From GReddy:
"Thanks for your interest in GReddy Products
But that is just the characterized of that intercooler and turbo
combination
When dealing with intercooler it is always a compromise between cooling
and
pressure drop. For that size it needs to drop the pressure for
effective
cooling. A PRofec or B-spec boost controller can alter the signals and
pressure to make up for the loss at higher RPMs.
Please keep in touch with your favorite Authorized Greddy dealer for
more
updates."

I guess it is absolutely normal for this to happen, even though other peoples setup sometimes do not do this. I'm going to bypass my intercooler sometime and put their word to test. And don't forget to buy all greddy merchandise for ALL your performance needs.

Oh and by the way, if ANYONE has ANY help and/or advice please let us know. Was GReedy legit? Or are they trying to suck more money from hard-working people.


[Modified by 5thgen, 11:45 PM 12/5/2001]

ric3 daddie

yeah i dono my blow off valve shuts as soon as you rev it. i cant understand i have the smallest intercooler greddy makes. i wonder what it is?????

5thgen

I've read about others with eclipse fender mount ic. They don't have the problem we do. Piping goes to the fender through the ic, then to the intake manifold. The greddy ic piping first goes toward the fender, turns back toward the front to the far side of the ic, then through the ic back toward the fender, then in the fender and finally to the tb. Its like about 10-15 feet of piping.

ric3 daddie

yeah
it is about that much, how much piping are you using?
my bro has the ecipse intercooler and yeah it doesnt take anymore piping than the strait pipe that goes without the ic.
mine has HELLA piping so thats why they say my boost drops??

so a better boost controler?? or something will eliminate the boost faling out and its not that the turbo is old??

PyroVTEC

Well yeah, because the boost pressurizes the piping and the IC first before pressurizing the manifold. I've got the GReddy kit on my D16Y8 and when I leave the boost controller off (AVC-R), it'll spike at just below 5psi around 4500, and then dip down to about 3psi near redline. I'm running the large, Type 24 Trust/Greddy intercooler and I attribute pressure drop to the size of the IC. The AVC-R compensates for the boost drop (any well made electronic boost controller will too) and I can boost to whatever I set the unit to.

ric3 daddie

koo
my bro is using the greddy profect-b boost controler and he has no problems
but im going to get bigger injectors and thick head gasket and turn up my boost.
you dugest going with a good electronic boost controler to compansate? thanx.

5thgen

thanks PyroVTEC, that helps. Someone who solved the prob finally replied.

GReddyEXcoupe

I had that problem but I SOLVED IT!!!!!!!!!

I recently added a huge cooler and a friend of mine (a tuner) told me how to solve it

Have you seen the blu little hose that goes from the wastegate to the turbo?

well, disconect the side that goes to the turbo and conect it to the same hose you use to your blow of or FMU

This way, the wastegate stops building boost according to MANIFOLD pressure instead of the presure in the turbo. Now you wont have spikes or pressure drops

It worked for me

Let me know if it works for you

if you have any Q let me know

I´ll be happy to help

Gabriel from Argentina

VTC_CiViC

I had a similar problem, I switched to an EBC (AVC-R), never had it again.

5thgen

cool, I'll try that when I have time. Thanks

ric3 daddie

thanx bro i tryed it today and i just got home it goes 2, 9PSI and falls to about 8.5PSI man its great!

i ran 13.552@100.95 with it spiking to 10 and falling to 6 i wonder what it will do now.

and now my tires wont stop blowing up in 2nd so i gotta shift slow and llet them grab the dry pavement and then hit it and its faster man!|
1st,2nd,3rd........... oh ****! im flying,..... in a matter of seconds!
thanx alot bro for the help!!!!


[Modified by ric3 daddie, 8:45 AM 12/8/2001]

GReddyEXcoupe

I´m happy it worked for you too

Sure its cheaper than a boost controler

5thgen

I just tried it too...like ric3 daddie I only lose .5 psi as well. And to think I've been going all this time with a boost drop when it was something so simple.
Thanks GReddyEX, you just saved me $400 for the time being.

ric3 daddie

yeah THANX bro

GReddyEXcoupe

I´m happy to help