Forced Induction Custom FI Setup Questions

external wastegate against boost creep?

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Old Jun 20, 2006 | 02:58 AM
  #11  
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Default Re: external wastegate against boost creep?

Originally Posted by JDMFantasy2K
i've seen people do 300+ on a 38mm tial with little boost creep. Depends on the dump tube if used too.
Yes, i want to use dump tube. 38mm I/D. and route it back to exhaust (apx. 25" from turbo outlet).
Old Jun 20, 2006 | 04:20 PM
  #12  
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Default Re: external wastegate against boost creep?

do you have a pic of you mani?
Old Jun 21, 2006 | 05:49 AM
  #13  
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Default Re: external wastegate against boost creep?

Originally Posted by Walter
do you have a pic of you mani?
There are lot of photos on my homepage:
http://www.carstyling.hu/car_shower.php?id=4582
Old Jun 21, 2006 | 02:37 PM
  #14  
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Default Re: external wastegate against boost creep?

ey man! i have a VTI but 5th ... look very nice ur setup!

btw, look like your WG is off.
Old Jul 4, 2006 | 07:59 AM
  #15  
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Default Re: external wastegate against boost creep?

Originally Posted by jagojon3
Make sure to take it apart and inspect as well as make sure that you received the correct psi spring. Seems to be a common problem to people including myself to receive the wrong spring installed on 35/38 SS gates.
I just have received the wastegate. I took it apart as you suggested, I don't see any cracks. I have two probs with it.
First the flange it came with is 35mm and not 38mm just like the wastegate.
And I can't tell the color of spring It's both red (5.83psi) and black (1.1bar) as you see on the photo. I can squeeze it by hand. Are there anybody here has the same color spring? I asked for a 6psi one, so i really hope it is wanted to be red. How can i test it without WOT?


Old Jul 4, 2006 | 11:38 AM
  #17  
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Default Re: external wastegate against boost creep?

Originally Posted by jagojon3
The 35/38 mm wastegates use the same flange. A 6 psi spring is the small red one, and the large red one is 1.1 bar I think. That's what they sent me, a large red one instead of a small red one. It looks like they made the same mistake with you, sending you the large one. Just to make sure, place the spring in the wastegate and leave the top off and take a pic and I can verify if it's the large one.
Thanks! Here it is. The spring is 105mm (4.13") long with 4mm (0.16") diameter.

In case it is the same ----, what did you do? Did they send you a new one? I hate exchange things as international shipping is expensive from Hungary I hope they ship another spring internationally.
Or can i cut it half? Could you measure the right 6psi spring for me? (diameter and long)

Old Jul 4, 2006 | 02:33 PM
  #19  
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Default Re: external wastegate against boost creep?

Originally Posted by jagojon3
Yea, they screwed up your order as well. That's the "big" red spring, 1.1 bar. I emailed the seller and got shitty responses, then they gave me the direct email address to the manufacturer who sent me out a new spring free of charge. I just had to be persistent and not act like a dick about it. Here's a thread I made about the situation:

https://www.homemadeturbo.com/forum/...?topic=61841.0
Thank You!
One more question. Could you please tell me the dimensions of the 6psi spring? There is a place in my area where custom springs are made, but i have to tell the dimensions (diameter, length) for them.

Peter



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