saying hello - Page 3 - ZR-1 Net Registry Forums

Dynomite · 06-10-2014

Make sure you drain just a bit of coolant to get the coolant level below the top of the Injector Housings. I also Plug TB coolant at the top of the Injector Housings making it easy to pull the plenum without messing with coolant the next time you pull the plenum. You also have to block the coolant flow from the TB to the top metal tank in front of the passenger side (I placed a plug in the rubber hose).

Good Luck

Waiting for SD Plates ULNOTWN

efnfast · 06-11-2014

Carter makes a nice plug for that rubber hose.
Was that a plug for Carter, or a plug from Carter? Huh.

weldbead · 06-11-2014

back in the days when i had patience and my 91 L98( RIP) i did some tinkering around the map sensor....i remember adding a tee there for a test port..for probably ten years that puppy ran with a white golf tee plugging that test port..

Bob Eyres · 06-13-2014

Welcome. Be sure to post after you get those secondaries fixed, because I think "pleasantly surprised" doesn't even come close to what you're going to feel. More like "HOLY SH*T!

..... Now,THAT'S what ZR-1's are all about.

I wouldn't start ripping out the secondary system before you actually get it functioning right. Because unless you're doing some serious porting and intake work, I'm not sure there is an actual performance advantage.
Mine's been functioning fine with no maintenance for 23 years. Just sayin'

Best of luck.

weldbead · 06-13-2014

i am considering the disabling of the system not for a performance advantage, just the reliability associated with it..i hear of no real down side from the system disablement ,other than perhps some low rpm torque loss ..which seems negligible..i dont race, minute numerical advantages dont matter to me.. push me back hard in the seat and im happy..so either way the plenum has to come off..

06-10-2014	#21
Dynomite Join Date: Aug 2009 Location: South Dakota/California Posts: 3,806	Re: saying hello Make sure you drain just a bit of coolant to get the coolant level below the top of the Injector Housings. I also Plug TB coolant at the top of the Injector Housings making it easy to pull the plenum without messing with coolant the next time you pull the plenum. You also have to block the coolant flow from the TB to the top metal tank in front of the passenger side (I placed a plug in the rubber hose). Good Luck Waiting for SD Plates ULNOTWN __________________ 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; 06-11-2014 at 12:03 AM.

06-11-2014	#22
efnfast Join Date: Nov 2011 Location: Dunbarton NH Posts: 7,542	Re: saying hello Carter makes a nice plug for that rubber hose. Was that a plug for Carter, or a plug from Carter? Huh.

06-11-2014	#23
weldbead Join Date: Apr 2014 Location: poughkeepsie ny Posts: 33	Re: saying hello back in the days when i had patience and my 91 L98( RIP) i did some tinkering around the map sensor....i remember adding a tee there for a test port..for probably ten years that puppy ran with a white golf tee plugging that test port..

06-13-2014	#24
Bob Eyres Join Date: Jul 2005 Location: Jupiter, Fl. Posts: 813	Re: saying hello Welcome. Be sure to post after you get those secondaries fixed, because I think "pleasantly surprised" doesn't even come close to what you're going to feel. More like "HOLY SH*T! ..... Now,THAT'S what ZR-1's are all about. I wouldn't start ripping out the secondary system before you actually get it functioning right. Because unless you're doing some serious porting and intake work, I'm not sure there is an actual performance advantage. Mine's been functioning fine with no maintenance for 23 years. Just sayin' Best of luck.

06-13-2014	#25
weldbead Join Date: Apr 2014 Location: poughkeepsie ny Posts: 33	Re: saying hello i am considering the disabling of the system not for a performance advantage, just the reliability associated with it..i hear of no real down side from the system disablement ,other than perhps some low rpm torque loss ..which seems negligible..i dont race, minute numerical advantages dont matter to me.. push me back hard in the seat and im happy..so either way the plenum has to come off..