ZR-1 Net Registry Forums - View Single Post - Did you eliminate your Secondary Throttle Vacuum System?

GOLDCYLON · 11-19-2017

I removed them in 2012 and never looked back. One of the butterfly blades broke ingesting the blade and butterfly screw in the top of piston number #2 wedging it open and bending the intake and exhaust valves... I would not of believed that happening or could happen except this was the second time this had happened as last time one of the blades lost the screw on the other side. I suggest if you are in there. Pull em. the secondary system is prone to vacuum failures and leaks and who drives without the car in full power anyway?

The secondary system has two benefits only. Lower emissions and better fuel economy. What you gain is about 1 second response in throttle time, a valley area free of the secondary system with multiple points of failure and the potential of what happened to me in #2014 NOT happening to you. Go boldly.

Debate over.

GC

11-19-2017	#18
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,120	Re: Did you eliminate your Secondary Throttle Vacuum System? I removed them in 2012 and never looked back. One of the butterfly blades broke ingesting the blade and butterfly screw in the top of piston number #2 wedging it open and bending the intake and exhaust valves... I would not of believed that happening or could happen except this was the second time this had happened as last time one of the blades lost the screw on the other side. I suggest if you are in there. Pull em. the secondary system is prone to vacuum failures and leaks and who drives without the car in full power anyway? The secondary system has two benefits only. Lower emissions and better fuel economy. What you gain is about 1 second response in throttle time, a valley area free of the secondary system with multiple points of failure and the potential of what happened to me in #2014 NOT happening to you. Go boldly. Debate over. GC __________________ 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 Last edited by GOLDCYLON; 11-19-2017 at 06:42 PM.