TBS

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TBS - 8/25/2008 11:47:11 AM    timber74wolf   Posts: 156 Score: 0 Joined: 4/24/2008 Status: offline Just a quick question. Has anyone heard of a TBS by Crane Cams? I got it for under $50 shipping and all. It does not have a twist design, but triangle cuts all the way around the bore. We just installed one on my father''s Chevy Avalanche. Right now we are checking MPG. To me it seems like it gave it a bit more throttle considering it is stock stock vehicle. The only other mods are the free mods, just not all of them.  < Message edited by timber74wolf -- 8/26/2008 3:41:38 PM > _____________________________ 2004 GMC Sierra Extended Cab -5.3 Vortec -K&N Series 77 CAI -TB Bypass & removed insulators -Hypertech Programmer -Summit Catback System -Stainless Steel Exhaust Tips -Factory 20s with Michelin LTXs -Spray n liner with a Truxedo cover Post #: 1

RE: TBS - 8/25/2008 4:04:36 PM    6mins2live Posts: 288 Score: 0 Joined: 1/30/2008 Status: offline they are pretty much all the same given it doesnt really add much anywhere. some people see small gains but I didnt see anyhting with mine. _____________________________ (in reply to timber74wolf) Post #: 2

RE: TBS - 8/25/2008 4:21:39 PM    jcormier89 Posts: 212 Score: 0 Joined: 5/19/2008 Status: offline i have a poweraid, and they all have that very coarse threading...i noticed a small gian on mine, nothing too big. _____________________________ 2000 5.3 Silverado: Flowmaster True Dual Exhaust, Glasspacks, Poweraid TBS, descreened MAF, JL Sound System, Prestige alarm, All chrome grill, Spray On bedliner...more to come New Addition to the family: 2009 Dodge Challenger R/T (in reply to 6mins2live) Post #: 3

RE: TBS - 8/26/2008 6:07:07 AM    jcbst12 Posts: 1835 Score: 0 Joined: 7/24/2007 Status: offline Threaded = low to mid range (RPM) gains anf MPG Smooth bore = mid to high end gains and a little less MPG I had a threaded on my 91 and a smooth on my 99.  The 91 would pull hills and cruise better than before (slightly) with an overall slight gain in MPG (city and highway), the smooth bore gave my 99 some more top end umph with the biggest MPGgain seen in highway cruising.  Gain usually didn''t exceed 1 MPG and did more for the older engine than the newer.  _____________________________ 99'' Silverado 5.3 4X4 Modified Predator 93 tune: TQM @ 25%, injector slope bumped up 4 levels, higher spark advance on WOT TBS, 180 thermostat, 4" CAI, Bypass and De screen performed, AVG: 17 MPG City, 20 MPG Highway. (in reply to jcormier89) Post #: 4

RE: TBS - 8/26/2008 1:35:08 PM    MrLM7 Posts: 825 Score: 0 Joined: 1/6/2007 Status: offline It will have a nice whistle to it... _____________________________ 2002 Silverado ecsb 2wd 5.3 4L60E 3.73's G80, headers, tbs, 160 degree tstat, redneck ram-air, dumped exhaust, throttle body bypass, air gap, descreened MAF, 255/65R16, Royal Purple Fluids, A/F gauge, efans Wheatley Tune more. 14s in 1/4 (in reply to jcbst12) Post #: 5

RE: TBS - 8/26/2008 3:38:45 PM    timber74wolf   Posts: 156 Score: 0 Joined: 4/24/2008 Status: offline You know everyone keeps mentioning a whistle and I am not disagreeing with it; however, the one I installed only whistles right as you just go to accelerate. And it is so brief you have to be listening for it. The TBS I ordered does not have a twist in it. It has triangle cuts all the way around the bore. According to my dad it is a way to force air into the intake. The triangles start out large and go to a point facing into the intake. Like I said just a slight whistle. And only just as you start to accelerate. _____________________________ 2004 GMC Sierra Extended Cab -5.3 Vortec -K&N Series 77 CAI -TB Bypass & removed insulators -Hypertech Programmer -Summit Catback System -Stainless Steel Exhaust Tips -Factory 20s with Michelin LTXs -Spray n liner with a Truxedo cover (in reply to MrLM7) Post #: 6

RE: TBS - 8/26/2008 7:07:08 PM    Rhyse62 Posts: 83 Score: 0 Joined: 5/11/2008 Status: offline My motor''s running lean and i think the TBS is to blame for it, i think itm gonna take it off _____________________________ 1995 GMC Sierra SLE 2-tone 4X4 To much money spent and to much to list (in reply to timber74wolf) Post #: 7

RE: TBS - 8/26/2008 7:47:03 PM    jcormier89 Posts: 212 Score: 0 Joined: 5/19/2008 Status: offline mine whistles too but my trucks exhaust is so damn loud that you can barely hear it...not too take anythign away from the tbs but my exhaust totally drones it out unless you listen for it _____________________________ 2000 5.3 Silverado: Flowmaster True Dual Exhaust, Glasspacks, Poweraid TBS, descreened MAF, JL Sound System, Prestige alarm, All chrome grill, Spray On bedliner...more to come New Addition to the family: 2009 Dodge Challenger R/T (in reply to Rhyse62) Post #: 8

RE: TBS - 8/27/2008 6:02:18 AM    stevieGx33   Posts: 13 Score: 0 Joined: 11/24/2007 Status: offline a tbs shouldnt affect your fuel/air ratio _____________________________ 02 1500 Z71 k&n 77 series CAI magnaflow dual exhaust with chrome tips remote start alpine head unit, rockford fosgate amp, two 12" kicker comp VRS mastercraft courser 285s linex (in reply to Rhyse62) Post #: 9

RE: TBS - 8/27/2008 6:33:46 AM    jcbst12 Posts: 1835 Score: 0 Joined: 7/24/2007 Status: offline It gets back to the tuning thing.  On the Vortec motors you can only throw a K&N filter and dual exhaust on the truck, after that (CAI, headers, TBS) it will run lean.  Then you need a tune. FYI:  Not so happy with Predator right now because a I have a "Low" spot on my fuel trims (between 1,800 and 2,200 rpm)  which it will not allow me to adjust.   It just goes like hell, hits the spot briefly where it levels out and then picks right back up.  Its very slight but its there.  _____________________________ 99'' Silverado 5.3 4X4 Modified Predator 93 tune: TQM @ 25%, injector slope bumped up 4 levels, higher spark advance on WOT TBS, 180 thermostat, 4" CAI, Bypass and De screen performed, AVG: 17 MPG City, 20 MPG Highway. (in reply to stevieGx33) Post #: 10

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