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Creep, Creep, and more Creep

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1Quick99GST

15+ Year Contributor
49
0
Oct 15, 2003
Pensacola,
POSSIBLE PROBLEM DIAGNOSIS - IF SO, MOVE PLEASE

Stock injectors, denso 190 FP, read profile for complete list of mods

I have had no issues with creep at all, until I recently installed my ported big 16G with 34mm flapper. The T25 would hold 16lbs perfectly. After I got the 16G installed, it would hold 10lbs (removed BC) until around 5k RPM or so, then it would shoot up to around 20lbs before I let off (once 22lbs on accident). I have read that the 02 housing needs to be ported or it will creep, so I bought an 02 housing eliminator with external dump. Now it holds 10lbs, until around 5500rpm, then it does the same thing - creeps (quickly) to 20ish until I let off. :barf: Now my car sounds like shit when I get on it, AND it still won't hold. Should I even bother hooking up the BC again to 16lbs? What else could it be?? What can I do?? Thanks in advance! :dsm:
 
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1Quick99GST said:
POSSIBLE PROBLEM DIAGNOSIS - IF SO, MOVE PLEASE

Stock injectors, denso 190 FP, read profile for complete list of mods

I have had no issues with creep at all, until I recently installed my ported big 16G with 34mm flapper. The T25 would hold 16lbs perfectly. After I got the 16G installed, it would hold 10lbs (removed BC) until around 5k RPM or so, then it would shoot up to around 20lbs before I let off (once 22lbs on accident). I have read that the 02 housing needs to be ported or it will creep, so I bought an 02 housing eliminator with external dump. Now it holds 10lbs, until around 5500rpm, then it does the same thing - creeps (quickly) to 20ish until I let off. :barf: Now my car sounds like shit when I get on it, AND it still won't hold. Should I even bother hooking up the BC again to 16lbs? What else could it be?? What can I do?? Thanks in advance! :dsm:
Click to expand...


Me and you are in the same dam boat except I'm running no pump and a big-t28. I talked to a few diff members on here and if that big16g is ported or is larger than the area it's matting up to it's making a lip and therefore causing you creep. Are your gaskets port matched?
 
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I have no lip - I ordered the larger 7cm gasket, so that's not the issue. Any other suggestions? All are welcome.... :)
 
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1Quick99GST said:
It's a tubular style @ 2.5" - I don't think it gets much better flowing. :cool:
Click to expand...


Best idea's I can think of are...
Port the #### out of the o2 housing more.
Port the wastegate side of the turbo.

Other than that I don't know.
Cause I don't think my gaskets are matched up to my o2 housing and I think I got a lip thats why I'm creeping...
 
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I got mine from RRE - the shipping kicked my a$$ though - it was like $24 or so after shipping. :thumbdown

My 02 housing can't be ported any more, porting the WG area of the turbo is my only other thing I can think is a possibility. Time to pull the turbo off again... :cry:
 
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Im ridding around on my 14b set for 13 psi, 2.5 o2 with extrenal dump, stock o2 gasket, 2.5 dp, 3" catback and it creeps right up to 16 psi. WTF?
 
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On stock fuel pump w/o some tuning, id like to not do that. Esp since itll just go to 20 then. Could the stock sized gasket be doing this?
 
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It shouldn't have a problem if you set it to 16, there just wouldn't be any additional lag time. I am using the stock 02 gasket, but a different exhaust manifold gasket - the stock 02 gasket it a perfect size....
 
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my o2 housing is barely ported and my 16g has been fine at 12 and 14psi no creep at all, i'm using a hallman mbc. i have the 34mm wg but the hole is opened up big time, also i made sure the air had a smooth clear path from the hole that connects to the exh mani i made sure it was highly ported that way and i opened up the wg-o2 hole a little bit, not much though. everything seems to be good. is the turbo ported good ?
 
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Yes, the turbo is ported, but the WG side is not (to my knowledge). That's more than likely my next move - port that out.

Oh, and congrats on a non-creeping setup. :thumb:
 
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If you keep the external dump then my method wont work. I have a similar setup (except for 14B) and I just removed the divider between the WG hole and the exhaust hole ( I know technical terms) and that helped. I wont however work if you have an external dump. I have pics in a thread here just look under my name.

Michael
:laser: :talon:
 
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I had creep until I got a HKS SSQV... then it went away... along with idle problems and other crap...


14b with ported stock o2 housing 3" no cat exhaust...
 
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Well then, your new BOV is leaking. :laugh: That is the only way a BOV could possibly help with boost creep....
 
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