TD05 boost issues
#1
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TD05 boost issues
quick car spec;
`95 leggy turbo
K&n induction,
TD05 90 degree entry,
apexi avcr,
FCD,
mongoose from turbo back.
by looking at previous posts it appears the td05`s pull max boost usually somewhere around the mid 3000rpm`s,
mine only starts to pull heavy boost after 5000rpm and peaks around 14-16psi at 6000 odd rpm,
mods are ongoing but obviously something is not right, any ideas?
`95 leggy turbo
K&n induction,
TD05 90 degree entry,
apexi avcr,
FCD,
mongoose from turbo back.
by looking at previous posts it appears the td05`s pull max boost usually somewhere around the mid 3000rpm`s,
mine only starts to pull heavy boost after 5000rpm and peaks around 14-16psi at 6000 odd rpm,
mods are ongoing but obviously something is not right, any ideas?
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Originally Posted by stockcar
air leak possibly, improper boost control/mapping, poor condition turbo??
does the same when piped straight from turbo - actuator / could mapping cause this?
turbo seems in good enough shape, no play or smoke,
could there be issues with the actuator?
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#8
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its the AVCR thats controlling the boost.
check the mechanical stuff FIRST, then re configure the AVCR.
however- for a TD05 to be boosting that late- I would say mechanical issue (or you really really cant setup the AVCR for **** )
check the mechanical stuff FIRST, then re configure the AVCR.
however- for a TD05 to be boosting that late- I would say mechanical issue (or you really really cant setup the AVCR for **** )
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Originally Posted by chrome
its the AVCR thats controlling the boost.
check the mechanical stuff FIRST, then re configure the AVCR.
however- for a TD05 to be boosting that late- I would say mechanical issue (or you really really cant setup the AVCR for **** )
check the mechanical stuff FIRST, then re configure the AVCR.
however- for a TD05 to be boosting that late- I would say mechanical issue (or you really really cant setup the AVCR for **** )
looks like investigation of the turbo is next on the list then ;(
cheers
robert
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ok.
defo turbo.
check actuator, around exhaust housing/wastegate for cracks and hoses.
I would put money on ex housing damage.
I had similar on my old P20 MD304 turbo..
Hairline crack barely visible around wastegate penny which widened enough when hot to lose me over 45bhp/30lbft!!
Wasnt seeing 1 bar until almost 4300rpm!
Was fixed with an ehxaust housing swap..
the old one had to go in the bin
defo turbo.
check actuator, around exhaust housing/wastegate for cracks and hoses.
I would put money on ex housing damage.
I had similar on my old P20 MD304 turbo..
Hairline crack barely visible around wastegate penny which widened enough when hot to lose me over 45bhp/30lbft!!
Wasnt seeing 1 bar until almost 4300rpm!
Was fixed with an ehxaust housing swap..
the old one had to go in the bin
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