what would be an upgrade to this TB?
04-08-2013, 04:11 PM
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what would be an upgrade to this TB? i have a BBK 80mm intake and TB combo on my engine now, i plan on running 15-20psi of boost once all is said and done with the engine, ive heard not great things about the bbk TB before and my tuner HIGHLY recommended i get something else as the car wont idle 100% right with it or do the drill mod to it and hope it helps.
what would be an upgrade to this TB for a FI application or would a whole new TB/intake mani be a good idea?
would switching to an LS6 and ported stock be better? i felt a diff switching from a stock ls6 and stock TB to this set up though
what would be an upgrade to this TB for a FI application or would a whole new TB/intake mani be a good idea?
would switching to an LS6 and ported stock be better? i felt a diff switching from a stock ls6 and stock TB to this set up though
04-09-2013, 10:51 AM
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I don't think you care about TB diameter unless your
compressor (turbo or blower) has an equal or greater
outlet diameter. Most of the ones I've seen, don't.
Your drivability problems (?) are probably simple as
far as the TB goes, or maybe even unrelated. All it
needs to do is close off the blade, allow "just enough"
bleed air to crank and catch, and provide an IAC
channel cross section that exceeds the full-lift IAC
valve escape area (in my experience, 3/8" bore is
OK out to full IAC counts while 3/16" makes airflow
"lay over" and destabilized the idle, some).
I'd inspect these aspects and if there's nothing
physically wrong, task your tuner or yourself to get
better at the idle tuning stuff. It's not like the bigger
TBs give you a magical ease-of-tuning, judging by
the similar complaints about those.
compressor (turbo or blower) has an equal or greater
outlet diameter. Most of the ones I've seen, don't.
Your drivability problems (?) are probably simple as
far as the TB goes, or maybe even unrelated. All it
needs to do is close off the blade, allow "just enough"
bleed air to crank and catch, and provide an IAC
channel cross section that exceeds the full-lift IAC
valve escape area (in my experience, 3/8" bore is
OK out to full IAC counts while 3/16" makes airflow
"lay over" and destabilized the idle, some).
I'd inspect these aspects and if there's nothing
physically wrong, task your tuner or yourself to get
better at the idle tuning stuff. It's not like the bigger
TBs give you a magical ease-of-tuning, judging by
the similar complaints about those.
04-09-2013, 11:12 AM
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only reason id change tb is to get rid of any idle issue i might have when i get it dyno tunes as this is just a mail order tune now and that was in the notes of the tuner, should i just peave alone till i get my turbo kit on and get it speed density tuned?
right now it idles fine but coming up to a stop in N or clutch in still rolling it likes to idle at 1000-1300rs untill i stop fully the. it drops down to 300 catches itself and idles mormal at 750
right now it idles fine but coming up to a stop in N or clutch in still rolling it likes to idle at 1000-1300rs untill i stop fully the. it drops down to 300 catches itself and idles mormal at 750