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12-18-2014
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#1 |
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Join Date: Jun 2013
Location: Toronto
Posts: 783
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Photo of Vacum lines After removing secondaries 1994 !!
I have to admit this part of the job when pulling the plenum nearly scared me to death. It was a total maze of hoses and it was a contributing factor in me going so slow for sure just because it was a little disheartening thinking about trying to put it all back together
 I asked several people and thanks to everyone for the input. I just wanted to share a photo and ask if this looks right? and leave it here for anyone looking to do the removal in the future to know how simple it really is (assuming its right  )ANyhow, about to put the fuel rails/injectors on tonight and the plenum too. I did do a little rerouting (my secrets out  ) that I had intended for a while but I still plan to do a lot of rerouting of vaccum lines etc underhood to get the engine bay looking the way I want. Of course the triple catch can setup wont be easy to hide but I have a few ideas.SO for the photo.. I tried highlighting all the remaining stuff under the plenum. This is majorly simple now in my mind (as most things after doing it once its all downhill from there) I noticed a few 90 degree bends had cracks and I swapped from some of the removed lines and then on most connections used some adhesive backed shrink wrap with the thought that if there was any vaccum leak the adhesive would fill any cracks etc.  Look right to you guys? Definitely simplifies things under the plenum ! I kept looking for photos thinking there was more 
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12-18-2014
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#2 |
 
Join Date: Feb 2009
Location: Alexandria, Virginia
Posts: 1,467
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Re: Photo of Vacum lines After removing secondaries 1994 !!
Yeah, that looks about right. That is what I am looking forward to when I get my new motor in (with no secondaries). I have also removed all the air pump sytem stuff too, but sill need to get the secondary vacum pump and lines out. I did break a vacum line going to the criuse control, need to find a way to repair that.
Rich
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1990 Bright Red Coupe #608 380 Stroker, Ported Heads/Intake/Housings/TB Haibeck Secondary Delete Chip / Pete's Cams George Braml Intake / FIC Injectors Coated SW Headers / Corsa Bill Boudreau B/B ZF6 / Viper 4.10 gears Ron Davis Radiator Pioneer AVIC-Z140BH NAV Fikse FM5's 285 / 335 / C6 Brakes WAZOO Member |
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12-18-2014
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#3 |
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Join Date: Aug 2006
Location: McLean, VA
Posts: 3,723
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Re: Photo of Vacum lines After removing secondaries 1994 !!
I got rid of Evap also.
Mine is a 94 as well. |
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12-18-2014
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#4 |
 
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
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Re: Photo of Vacum lines After removing secondaries 1994 !!
A LOT less cluttered with the evap and secondaries stuff outta thar!
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Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry |
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12-18-2014
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#5 | |
  
Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,797
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Keep the Secondaries Functional
Ya.....But.......it turns out that fixing Secondary Vacuum leaks is pretty simple and only takes a few minutes (that is including removing the Plenum)
 But you got to have your TB Coolant Blocked at the Injector Housings both sides which is a pretty simple modification. My secondaries function perfectly and probably will be maintenance free for a long time as there really is not much to go wrong. I happen to like that Functional Full Power Key which is one of the unique features of ANY ZR-1  Same goes with the Charcoal Canisters which I installed new Canisters. Quote:
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Left Clickable links  -Solutions- LT5 Modifications/Rebuild Tricks Low Mileage ZR-1 Restoration 1990 Corvette (L98) Modifications LT5 Eliminated Systems LT5 Added Systems LT5/ZR-1 Fluids 1995 LT5 SPECIFIC TOP END REBUILD TRICKS Last edited by Dynomite; 12-18-2014 at 09:19 PM. |
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12-19-2014
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#6 | |||||
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Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
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Re: Keep the Secondaries Functional
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Besides...where would you put them little bastards, anywho? (The ball = 37.5, but the "hole" is tapered. The opening was opened to ≈ 38.0 ish.)  Quote:
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Go on, go on 'Til you've reach the end of the line 'Cause I know you'll pass my way again It's just a matter of time Yep...My secondaries work perfectly...NEVER fail...NEVER need servicing...(don't exist, tho I keep the POWER switch around for a conversation piece**  )Quote:
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**Note: The 90s use a mechanical switch with all the lovely advantages (HA!) of contacts and spring tension and dirt which was replaced by a PCM latch in 91+ cars. IF the POWER switch were to open, and shut the secondaries off on a "secondary-delete" car, a serious lean condition would result, as half of the fuel would be shut off. Soooooo.... I hard-wired the dang thing so that the switch function is bypassed: NO chance of the secondaries being shut off by that switch through accident or mechanical reasons, boy-yo-boy!You'd LOVE the throttle response with the 2nd's open all the time, I'll betcha!
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Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry Last edited by Paul Workman; 12-19-2014 at 02:25 PM. |
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12-23-2014
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#7 | |
  
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,155
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Re: Photo of Vacum lines After removing secondaries 1994 !!
Quote:
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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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12-18-2014
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#8 |
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Join Date: Jun 2013
Location: Toronto
Posts: 783
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Re: Photo of Vacum lines After removing secondaries 1994 !!
Evap is something that can be tuned out I think ? I'm not sure if I had asked for it to be turned off but I can't really see much of an advantage from not having the line be drawn Into the plenum vs leaving the line to vent open ?
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12-18-2014
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#9 |
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Join Date: Jun 2013
Location: Toronto
Posts: 783
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Re: Photo of Vacum lines After removing secondaries 1994 !!
On second thought.. Both of those big lines are eliminated by turning it off. Hmm.. What did you do with the hose ? Vent it at the rear or plug it ?
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12-19-2014
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#10 |
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Join Date: Jul 2010
Location: Woodstock, Ontario, Canada
Posts: 1,275
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Re: Photo of Vacum lines After removing secondaries 1994 !!
Question: Why are you guys deleting the TB coolant supply?
I remember the supposedly cooler intake charge, but there was a more relevant reason that I cant remember.
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peace Paul ZR-1 Net Registry Member #1494 |
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Hybrid Mode
