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Old 02-19-2002, 07:19 PM   #1
tydon
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Join Date: Nov 2001
Location: Evergreen, CO
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2000 RS;Spec Miata
Del Sol Si

Question ludespeed stage 3: when is it spooled up

I am running the stage 3 at only 4 psi right now, but itsnt at max boost until 4000 rpm. im pretty sure that is way late. any one with this or a similar kit have any info for comparison?
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Old 02-20-2002, 02:16 AM   #2
Marcin
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What is your turbo trim? The bigger the turbo, the longer it takes to spool.
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Old 02-20-2002, 03:08 AM   #3
LVSUBARU
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93 STi V.4 RA
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I'm running about 5.5psi on my stage three and it spools up almost instantly!!! Did you get the ball bearing turbo? Is you blow off valve bleeding off the boost........
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Old 02-20-2002, 11:31 AM   #4
tydon
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Del Sol Si

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ive got the t3/to4b turbo. the ludespeed site says that it should be spooled by 3000 rpm, and it mentioned running 9psi just before that.i would think that 4psi should be reached by about 2500rpm

it seems like i may have a small exhaust leak, so maybe that is the culprit. ill get that taken care of this weekend and see from there, unless anyone has any other suggestions.

i think the bov is ok. it was when the kit was installed, but maybe it has been broken in, and needs more adjustment.

thanks for the help
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Old 02-21-2002, 02:48 AM   #5
LVSUBARU
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The exhaust leak will effect lag time. Do you know what spring is in your wastegate? I had a weaker spring to start with, and when I turned my boost up and switched to a heavier spring I noticed a difference with the spool time. Did you call Tom and ask him? He's a great guy to deal with. I'm sure he'll what to help you out!
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Old 02-21-2002, 09:33 AM   #6
HOK
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but remember lag can be caused by both the exhaust track and the intake track... check your intake.. small pipes?
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