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Location:
Adelaide
Registered:
September 2004
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EP82 Starlet GT boost problems (boost drop)
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Tue, 06 December 2005 07:28
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anyone help me?
got an ep82 starlet gt with 4e-fte. have an 2.5inch dump pipe, full hks exhaust, hks air filter and GFB bleed valve.
having problems with boost, boost comes up to about 8psi in 1st gear then drops to about 5psi as rpm increases after around 4-5000rpm, then 2nd gear goes up to about 9psi and same happens and 3rd 11psi and drops
if someone could help me that would be good?
asked many mechanics in SA and not much luck.
im sure there is someone on here smarter then these mechanics.....
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Location:
brisbane
Registered:
December 2004
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Re: EP82 Starlet GT boost problems (boost drop)
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Tue, 06 December 2005 08:24
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take the bleed valve off and see what happens, then can move from there, how are you reading boost pressure, wastegate could be tired etc etc
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Location:
Adelaide
Registered:
September 2004
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Re: EP82 Starlet GT boost problems (boost drop)
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Tue, 06 December 2005 10:05
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the turbo has been replaced recently cause the old one had a crack on the exhaust turbo housing where the wastegate flap thing opens.
ye was thinking of doing that and seeing what happens..when i take it off, the bleed valve is brand new aswell.
reading it from a boost gauge but ill double check where it is connected too.
do you have to bypass the standard boost controller solenoid??
also could there be a problem with the standard blow off valve?
i blocked off the pipe before and the vaccum line that goes out of it and it helped a lil, ( boost pressure dropped a bit when it spiked and didnt drop as much i think it only dropped to 6 psi, but still dropping atleast 3psi in every gear, which doesnt seem right)
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Location:
Adelaide
Registered:
September 2004
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Re: EP82 Starlet GT boost problems (boost drop)
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Tue, 06 December 2005 10:07
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do you know of any articles or pictures about installing a bleed valve/boost controller??
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Location:
Adelaide
Registered:
September 2004
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Re: EP82 Starlet GT boost problems (boost drop)
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Thu, 08 December 2005 12:09
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hey mate how are ya
i took off the bleed valve and it still doesnt hold boost
do you think it could be the actuator?
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: EP82 Starlet GT boost problems (boost drop)
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Thu, 08 December 2005 23:13
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It's most likely just the turbo being so small. Although you have a better exhaust, most factory cars I've seen do it. My mates GZ20 Soarer will hit 9spi, but is lucky to be pulling 6psi at redline.
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Location:
Adelaide
Registered:
September 2004
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Re: EP82 Starlet GT boost problems (boost drop)
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Fri, 09 December 2005 23:35
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ye it just doesnt feel right
my mate used to have a gt starlet before and his held boost fine and he even had a standard exhaust
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