Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

B20/VTEC - Turbo Lag

 
Old 07-25-2004, 06:28 AM
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Default B20/VTEC - Turbo Lag

I've got a B20/VTEC Turbo (.48 x .63) and am experiencing a bit of lag when the turbo tries to spool up. I know I need to open up the exhaust (cuttently running 2.25") but any other ideas on minimizing the lag until I can come up with the money for a 3" Hayame exhaust?

Done so far;

Minimized the size of the vac lines
Ensured the BOV is workin properly to eliminate compressor surge
Check oil delivery to turbo

To Do;

Change O2 sensor

Thanks...........
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Old 07-25-2004, 06:32 AM
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Default Re: B20/VTEC - Turbo Lag (Islandspeed)

what a downpipe are you running?
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Old 07-25-2004, 06:35 AM
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Default Re: B20/VTEC - Turbo Lag (ABK)

2.25" flared connection to Turbo and welded to flex pipeunder base pan...........
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Old 07-25-2004, 06:40 AM
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Default Re: B20/VTEC - Turbo Lag (Islandspeed)

well you might wonna get that thing up to at least 2.5" or bigger if possible. o2 housing and downpipes can be really responsible for turbo lag. As for exhaust just take your exhaust off, your car won't be terribly loud since you got a turbo. It will sound actually pretty nice, and reduce your lag.
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Old 07-25-2004, 07:43 AM
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Default Re: B20/VTEC - Turbo Lag (ABK)

If you run open downpipe watch out for 5-0 and jackers. The sound of a turbo spoolin can turn a lot of heads.
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Old 07-25-2004, 07:49 AM
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Default Re: B20/VTEC - Turbo Lag (EM1 MIKE)

yeah it's not really loud though, it just sounds like a madd semi turbo. Exhaust sound is pretty much canceled out. I see tons of people running open downpipes around here mostly SRT-4s non of them get touched, unless they **** around.
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Old 07-25-2004, 08:17 AM
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Default Re: B20/VTEC - Turbo Lag (ABK)

You sure you have no boost leaks?
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