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boost problem...any ideas?

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Old 04-17-04, 11:33 PM
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10 lb. boost, 5lb. bag

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boost problem...any ideas?

First a little detail of my setup...

Rebuild Jspec motor with street port
660cc secondary injectors
walbro pump
g-force re-mapped ecu
K&N filer on stock TID
bonez cat
Apexi N1 single

Normally it makes about 12psi peak and falls off a bit towards redline, but recently boost response is reduced, and peak boost is lower. I can get 10psi in 4th gear but in first-third it doesn't want to get past about 8 psi and builds pretty slowly. Any ideas?
Old 04-18-04, 10:12 AM
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10 lb. boost, 5lb. bag

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bump... anybody?
Old 04-18-04, 01:28 PM
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oki man I got the same problem as well
you could have one of 3 problems
either sometihng is opening your wastegate
or u got a clogged cat or any exhaust system part
or finally the one u dont want to hear is the turbo itself is getting weak and cant produce good spool (that was my problem by the way)
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