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05-08-2010, 11:04 PM
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#1 |
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Registered User
Join Date: Nov 2008
Location: WNY
Posts: 313
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TBI Mods?
I am rebuilding my throttle body with a full BWD kit. I was wondering if there are any simple mods I can do while it's apart.
1990 Suburban TBI 350
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05-08-2010, 11:12 PM
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#2 |
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Registered User
Join Date: Aug 2009
Location: Lambertville MI
Posts: 962
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Re: TBI Mods?
vortec heads, and a vortec carbd intake and a holley 600 lol ok seriously.. a throttle body spacer wil l help with perf a little and while you have it apart, maybe a small rv cam
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"I'll keep my guns, money, and freedom. You can keep the "change" |
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05-08-2010, 11:41 PM
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#3 |
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Registered User
Join Date: Dec 2009
Location: Upstate,SC
Posts: 27
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Re: TBI Mods?
TB Spacer, Injector pod spacer, Make your fuel regulator adjustable would be my advice. Would also go with a high output pump, but dont "have" to...
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'90 Suburban |
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05-08-2010, 11:58 PM
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#4 |
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In the Forgotten far North.
 
Join Date: Jul 2007
Location: Anchorage, Alaska
Posts: 2,627
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Re: TBI Mods?
Check with this guy.
www.tbichips.com
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1987 R3500 CREW CAB DUALLY (BIG RED)Acquired 06/12/2015 1990 chevy suburban V2500 5.7L My cluster Mods-Nov 2007 overhead console Stereo install Round 2 Aug 2009 Heated/turn signal mirror upgrade |
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05-09-2010, 12:10 AM
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#5 |
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Fun Stuff
Join Date: Jan 2010
Location: Sedro Woolley, WA
Posts: 400
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Re: TBI Mods?
here is some good info. http://www.cfm-tech.com/GMTBIPerformanceParts.htm I did some research before, but I have forgotten. Most I got from "Google" high performance tbi. Good luck
 edit: Also it would be a good idea to make the pressure regulator adjustable, stock it is just alittle to low.http://www.fl-thirdgen.org/tbiafpr.html
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Jay 68 C10(project) 88 Honda Accord(DD) 93 Chevy Astro EXT 2wd Last edited by jayman68; 05-09-2010 at 12:15 AM. |
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05-11-2010, 07:34 PM
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#6 |
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Registered User
Join Date: Mar 2008
Location: williamsport,pa
Posts: 329
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Re: TBI Mods?
the guy from westers garage in canada is the guy you want to talk to. i built a tbi motor for my brothers 90 and im working out the bugs but he is very intellegent.
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05-12-2010, 01:52 AM
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#7 | |
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Ironmonger
Join Date: Dec 2004
Location: SF Bay Area, CA
Posts: 127
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Re: TBI Mods?
Quote:
But then you'd be investing in some hardware and software to recalibrate the ECM. Not sure what the smallblock TBI intake manifolds are like, the pre-'91 big-block TBI intakes are horrible. But then so are the heads, cam, exhaust, etc. |
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