ZR-1 Net Registry Forums  

Go Back   ZR-1 Net Registry Forums > C4 ZR-1 > C4 ZR-1 Technical Postings

Reply
 
Thread Tools Display Modes
Old 10-04-2019   #11
XfireZ51
 
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,681
Default Re: ZF Gearbox Oil spec

So now I am wondering, is the Amsoil 5W-30 too light for a black tag when using a Fidanza? Would that promote the kind of noise that generates false knock?
__________________
[SIGPIC][/SIGPIC]Former Membership Chairman
Former ZR-1 Registry - BOD
1972 Corvette 4speed base Coupe SOLD long time ago
1984 Corvette Z-51/4+3 SOLD
1992 Corvette ZR-1 Aqua/Gray #474 SOLD
1992 Corvette ZR-1 Black Rose/Cognac #458
2014 Honda VFR Interceptor DX
XfireZ51 is offline   Reply With Quote
Old 10-04-2019   #12
Great White
 
Great White's Avatar
 
Join Date: Mar 2018
Location: Misery
Posts: 79
Default Re: ZF Gearbox Oil spec

My car has a fidanza lightweight flywheel and the accompanying gear rattle. When I first purchased the car, I was in dire need of anything to replace the old oil in the trans. I used the new Synthetic Lucas Oil Stabilizer for several months before finally putting in Amsoil 80w90 Manual Transmission gear oil. It is quieter and shifts are smooth, but I've had to just accept that this transmission won't ever be silent. (I'm used to it now and it doesn't bother me anymore.)
Attached Images
File Type: jpg thumbnail.asp.jpg (16.8 KB, 15 views)
File Type: jpg luc-10130.jpg (10.9 KB, 16 views)
Great White is offline   Reply With Quote
Old 10-05-2019   #13
richarde
 
Join Date: Sep 2012
Location: United Kingdom
Posts: 68
Default Re: ZF Gearbox Oil spec

Talking about quieting the ZF gearbox whilst on idle with an aluminum flywheel fitted, has anyone tried the Carolina Clutch C4 Shim Kit, sold for this purpose? It includes a countershaft shim that is just over 0.005" thicker than stock, reducing the 'gear rollover noise' when not under load. The gearbox needs to be out of the car to fit, although actual fitment does not take long.
__________________
Richard
1990, numbers 1821 and 2391
1821 - owned since Nov 2002, charcoal / Gray, Stainless headers, B&B system, 4.10's
2391 - owned since Jan 2019, Black / Black, have completed restoration. Jeal headers, Corsa system, 4.10's, Aluminum flywheel with Carolina clutch.

Last edited by richarde; 10-05-2019 at 03:09 PM.
richarde is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 07:21 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright ZR-1 Net Registry 2020