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| Forum name | Turbo/Nitrous Tech |
| Topic subject | More boost in 3rd/4th than 2nd? |
| Topic URL | https://forums.2gnt.com/dcboard.php?az=show_topic&forum=i8&topic_id=95238 |
95238, More boost in 3rd/4th than 2nd?
Posted by cs82685, May-23-06 07:33 AM
WG vac source from turbo, 7 psi spring, fmic.
In second I'll see 6.5 maybe creep to 7 by redline
In 3rd and 4th by 4k rpms boost is at 8psi.
I'm thinking its the wastegate or Vac Line(WG had leaked before and I used some JB Weld on it so that's the first thing to check).
Any other suggestions on what it may be? I'm at work now and am bored so just trying to brainstorm other causes.
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95241, RE: More boost in 3rd/4th than 2nd?
Posted by eclipseman1999, May-23-06 11:48 AM
I have the same problem with my hahn kit. In 1st and 2nd gear it hits around 10-12psi and in 3rd and 4th it stays a 15psi where I set it. I have checked for boost leaks and cant find any. It might be a bad wastegate
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95242, RE: More boost in 3rd/4th than 2nd?
Posted by cs82685, May-23-06 12:01 PM
Originally posted by eclipseman1999
I have the same problem with my hahn kit. In 1st and 2nd gear it hits around 10-12psi and in 3rd and 4th it stays a 15psi where I set it. I have checked for boost leaks and cant find any. It might be a bad wastegate
The difference is I'm seeing boost higher than it should be set for. Although the temperamental POS acted normal on the drive home, hopefully I can wait another month or so before needing a new WG.
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95255, RE: More boost in 3rd/4th than 2nd?
Posted by donnyb373, May-24-06 12:23 AM
buy a tial wg imo
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95414, RE: More boost in 3rd/4th than 2nd?
Posted by sike, May-31-06 11:30 AM
I've always had this. 3 different turbos, 2 internally gated, 1 external. Several different boost controllers. It doesn't bother me, I only want about 10 psi in 1st and 2nd anyway. After that bombs away.
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