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04-19-2012
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#11 | |
   
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,153
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Re: New exhaust
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Just unplug but yeah its no longer needed. Cleans up a lot of room in the engine compartment
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GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director  91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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04-19-2012
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#12 |
 Join Date: Nov 2011
Location: Dunbarton NH
Posts: 7,261
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Re: New exhaust
Thanks GC, I'll keep the post up to date.
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04-19-2012
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#13 |
 Join Date: Feb 2011
Location: San Marcos CA
Posts: 1,802
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Re: New exhaust
It is true, the factory only used 7 or 8 fasteners on the original manifolds.
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04-20-2012
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#14 | |
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Join Date: Aug 2006
Location: McLean, VA
Posts: 3,704
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Re: New exhaust
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04-20-2012
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#15 |
 
Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,645
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Re: New exhaust
Steve, you may want to check me on this but I do believe that with headers you will be a bit lean with the OEM fuel programming. Check Marc's web site as I think he has details on the page with all the EPROM descriptions and prices.
I know back in the old days a sbc 327 or 350 would run waaay lean on the back two cylinders on each bank with headers & stock jetting. It was sort of commonly accepted procedure that you had to step up the primaries 2 steps and the secondaries 3 steps just to start with and read plugs from there.   Tom
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1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member |
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04-20-2012
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#16 |
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Join Date: Nov 2011
Location: Dunbarton NH
Posts: 7,261
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Re: New exhaust
Thanks Tom. Just heard it run, sounds great, looks great, and the installer was happy with it. If he doesn't take all my money, I may go straight to Marc for a chip.
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04-20-2012
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#17 | |
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Join Date: May 2007
Location: Peoria, AZ
Posts: 9,153
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Re: New exhaust
Quote:
__________________
GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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04-20-2012
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#18 |
Join Date: Aug 2005
Location: Scottsdale, AZ
Posts: 2,450
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Re: New exhaust
You want/need Marc's chip for several reasons, no buyer remorse
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04-21-2012
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#19 |
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Join Date: Nov 2011
Location: Dunbarton NH
Posts: 7,261
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Re: New exhaust
There is a rather large plug on the back of the air pump. I pulled it. Was that the right thing to do?
Just e-mailed Marc for a chip. Looks like I'll wait 'till BG, he's advertising 10% off and he'll install at BG. Sounds good to me.
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04-21-2012
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#20 |
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Join Date: Feb 2012
Location: South Africa
Posts: 30
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Re: New exhaust
About the air system, do you just disconnect the pump and the switch/valve at the top of the wheel arch, and reroute the vacuum line? because that is just what I have done on my new toy! Does this give you a failure code?
My motor was running quite rich when I drove the car home after buying it, have since replaced both O2 sensors because they didnt work and have now removed the air system, as sugested else where. Unfortunately I cant go for a ride as Im waiting for a gearbox rear seal. 
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