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-   -   Slow to hit full boost.... (https://www.homemadeturbo.com/forced-induction-7/slow-hit-full-boost-23962/)

B16Drag 07-27-2004 12:42 AM

Slow to hit full boost....
 
Alright guys, need some of you brains out there.

Got my turbo installed but it is taking it a century for boost to build up. Any thoughts on what is going on? In terms of setup specs: b16, t3 .60/.48, rc440cc, uberdata.

I'm thinking either my fucken deltagate wastegate is giving me ---- or my exhaust is too restrictive. I just got a new exhaust in 2.5" with glass or something resonator with 5zigen straight through muffler. I've been looking at other peoples setup and 2.25"-2.5" should be ok for most low boost setups, which makes me conclude that it might be my wastegate, because I dont get full boost of 6psi until 7k. My bro said that the wastegate is slightly open when he took it off last time. According to him, a gap the size of a 0.7mm pencil lead all around the plate that is supposed to close the exhaust hole.

I'm thinking those two things... Anyone else want to confirm, deny, or have any other idea what is going on?

alwaystootall 07-27-2004 01:45 AM

Re:Slow to hit full boost....
 
well i have never heard anything good about a deltagate.i hit full boost on my b16 very quickly.u either have a boost leak or an exhaust leak(wg opening to early or not shutting fully)? 2.5" exhaust should not be too restrictive.

AgentMurdoc 07-27-2004 01:56 AM

Re:Slow to hit full boost....
 
crap this is scary, I'm actually looking into a delta wastegate. :-\

quadnie 07-27-2004 04:12 AM

Re:Slow to hit full boost....
 
do u have a catalytic converter?

if so and it's clogged then that could be a big factor.

sounds like shitty deltagate

Semnos 07-27-2004 04:58 AM

Re:Slow to hit full boost....
 
yeah..replace it or repair it

baldur 07-27-2004 09:02 AM

Re:Slow to hit full boost....
 
I started looking into external wastegates earlier... DAAAAMN eBay needs an option in their search to block out items listed by certain sellers *cough*www.ssautocrap.com*cough*
4 out of 5 wastegates on eBay are ------- SSautocrap, and even if they might be ok (which I'm assuming they're not) I would boycott SSautocrap because of their other shitty products and service.

B16Drag 07-27-2004 09:11 AM

Re:Slow to hit full boost....
 
i didnt buy my wastegate from ssautocrap and also I have no catalytic converter. Its straight through...

88crxSi 07-27-2004 10:46 AM

Re:Slow to hit full boost....
 
can u disconnect it somehow to test?

B16Drag 07-27-2004 03:20 PM

Re:Slow to hit full boost....
 
thats the plan...

shitbird 07-27-2004 05:08 PM

Re:Slow to hit full boost....
 
I have a few tial wastegates sitting here and they all have a ring that fills the gap on the inlet side.(kinda like a gasket)I'm pretty sure the delta's should come with them also.With the gap being there,It's always exhausting.That is most likely the problem.Do you have an open dumptube?If so,put your hand there to see if it's exhausting.


shitbird 07-27-2004 05:12 PM

Re:Slow to hit full boost....
 
http://www.newbieforces.com/files/c6_1_b.jpg

B16Drag 07-27-2004 07:03 PM

Re:Slow to hit full boost....
 
holy shitbird i think you are right. I'll try that later today... Thanks buddy. I have a feeling that you might right on this one. I got my deltagate from someone on the net and just got the wastegate alone so not sure if it was supposed to come with one... anyone know if the deltagate wastegates do or do not come with one?

tranceminister 07-28-2004 05:29 PM

Re:Slow to hit full boost....
 
Not quite sure if they come with that ring. Mine didn't and I havn't had any exhausting problems :-\ It seems to be working fine for me.

91civicZ6 07-28-2004 07:53 PM

Re:Slow to hit full boost....
 
it sure sounds like a leaking wastegate to me.

quadnie 07-29-2004 07:22 AM

Re:Slow to hit full boost....
 
damn, shitbird is the man!

B16Drag 07-31-2004 02:21 PM

Re:Slow to hit full boost....
 
everyone is fucken wrong, including me! haha =) I figured it out last night when I was fiddling with ----. Found out that the screw on my BOV was semi loose. Tighten that fucker up and full boost of 6-7psi at 4.5k I guess I can be happy with that. Its not as low as I wanted to but I guess I'll just consider that traction insurance and fuel efficiency. Now I just have to tune it up and bump up the boost to 10 and see how it performs on the dyno.

Thanks for the help guys.


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