Death by Quaife - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Suspension, Brakes, Drivetrain discuss the wondrous effects of boost and your miata...

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 06-12-2014, 09:08 PM   #21
Elite Member
iTrader: (1)
 
Leafy's Avatar
 
Join Date: Jun 2012
Location: NH
Posts: 9,093
Total Cats: 90
Default

GCU = air shifters?
Leafy is offline   Reply With Quote
Old 06-12-2014, 09:27 PM   #22
Senior Member
iTrader: (1)
 
Join Date: Jan 2011
Location: Chattanooga, Tn
Posts: 1,038
Total Cats: 157
Default

As for fluid. Redline Heavy Shock proof is the ONLY fluid I would run in a gear box subjected to forces beyond its ratings. I had a STOCK 5 speed last for over 2 seasons of AutoX / Pro Solo launches at significant power levels and very sticky tires using nothing more than that fluid.

The same set up with regular fluids would only last a couple of events, at most, before going boom.
TNTUBA is offline   Reply With Quote
Old 06-12-2014, 09:38 PM   #23
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,366
Total Cats: 1,326
Default

Quote:
Originally Posted by Leafy View Post
GCU = air shifters?
Think long and hard about what "ECU" stands for, then substitute the word "Gearbox" into it.
Savington is online now   Reply With Quote
Old 06-13-2014, 03:18 AM   #24
Senior Member
iTrader: (2)
 
Join Date: Mar 2014
Location: Meridian, Mississippi
Posts: 637
Total Cats: 42
Default

Quote:
Originally Posted by Savington View Post

Think long and hard about what "ECU" stands for, then substitute the word "Gearbox" into it.
Don't most people call it a TCU rather than a GCU?

I know that most car manufacturers call it a TCU but perhaps it is different for aftermarket units.

Keith
Twodoor is offline   Reply With Quote
Old 06-13-2014, 10:40 AM   #25
Elite Member
iTrader: (3)
 
Join Date: Feb 2008
Location: Huntsville, AL
Posts: 1,881
Total Cats: 45
Default

Amsoil Severe Gear 250 is supposed to be even better than Redline Shockproof. It's also thick as wet concrete, so you can expect it sucks up some more torque. Anecdotal evidence quoted here:

Amsoil Severe Gear SAE 250, Medicine for Weak Transmissions

says that it will keep a 1 weekend transmission alive for an entire season.



There are several other weights now, but I don't know of any reliability data on the lighter weights relative to 250.

AMSOIL Synthetic Gear Lube - Gear Oil
vehicular is offline   Reply With Quote
Old 06-13-2014, 09:10 PM   #26
Elite Member
 
Join Date: Jul 2005
Location: Anacortes, WA
Posts: 2,476
Total Cats: 114
Default

Quote:
Originally Posted by TNTUBA View Post
As for fluid. Redline Heavy Shock proof is the ONLY fluid I would run in a gear box subjected to forces beyond its ratings. I had a STOCK 5 speed last for over 2 seasons of AutoX / Pro Solo launches at significant power levels and very sticky tires using nothing more than that fluid.

The same set up with regular fluids would only last a couple of events, at most, before going boom.
I think I broke at least 3 5 speeds running nothing but redline heavy shock proof.

Broke seven 5 speeds and four 6 speeds and counting. Stacking them up like cord wood.
bbundy is offline   Reply With Quote
Old 06-13-2014, 09:49 PM   #27
Senior Member
iTrader: (1)
 
Join Date: Jan 2011
Location: Chattanooga, Tn
Posts: 1,038
Total Cats: 157
Default

I broke 7 5 speeds before going to heavy shock proof. After I went to Heavy Shock Proof I only broke 1. Results speak for themselves.
TNTUBA is offline   Reply With Quote
Old 06-14-2014, 01:26 AM   #28
Elite Member
 
Join Date: Jul 2005
Location: Anacortes, WA
Posts: 2,476
Total Cats: 114
Default

Quote:
Originally Posted by TNTUBA View Post
I broke 7 5 speeds before going to heavy shock proof. After I went to Heavy Shock Proof I only broke 1. Results speak for themselves.
My results were that the shock proof made no difference in time between failures.
bbundy is offline   Reply With Quote
Old 06-14-2014, 12:45 PM   #29
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,366
Total Cats: 1,326
Default

Makes sense to me. I tried Shockproof in my diff and I've never seen a fluid break down so quickly and so massively. Nothing Redline makes has decent heat tolerance, in my experience (based on uoa results). I could see it working in an autocross car that doesn't get the gearbox hot, but not doing jack **** in a road race car that essentially overheats the gearbox every session.
Savington is online now   Reply With Quote
Old 06-14-2014, 03:57 PM   #30
Elite Member
 
Join Date: Jul 2005
Location: Anacortes, WA
Posts: 2,476
Total Cats: 114
Default

Quote:
Originally Posted by Savington View Post
Makes sense to me. I tried Shockproof in my diff and I've never seen a fluid break down so quickly and so massively. Nothing Redline makes has decent heat tolerance, in my experience (based on uoa results). I could see it working in an autocross car that doesn't get the gearbox hot, but not doing jack **** in a road race car that essentially overheats the gearbox every session.
When I was much lower Hp ~200 doing mostly track stuff . I also ran all sorts of mixes of tranny oils. The redline mixes of different amounts of shock proof grades, straight shock proof and down to straight mt90 all seemed to produce higher temps than even just cheap volvoline synthetic. actually Royal purple 75W-90 seemed to have the lowest friction. but nothing made a noticeable difference in extending tranny life when I bumped up power levels with over 300 ft-lbs of torque and even though some ran hotter than others I never burnt tranny oil eather. With the 6 speed Amsoil MTG feels the best with the syncros so that is what I have been using.


I did just order some Amsoil severe gear SAE250 to try. Maybe it will do something.
bbundy is offline   Reply With Quote
Old 06-14-2014, 07:50 PM   #31
Senior Member
iTrader: (3)
 
Join Date: Nov 2011
Location: Beaverton, OR
Posts: 737
Total Cats: 30
Default

Have you guys tried dumonde tech trans fluid? Its shitty when its cold bite efect once it heats up.
greddygalant is offline   Reply With Quote
Old 06-14-2014, 10:52 PM   #32
Elite Member
 
Join Date: Jul 2005
Location: Anacortes, WA
Posts: 2,476
Total Cats: 114
Default

Quote:
Originally Posted by greddygalant View Post
Have you guys tried dumonde tech trans fluid? Its shitty when its cold bite efect once it heats up.
Yep broke a 5 speed with that in it too. lasted two weekends. I broke a clutch fork shift ball at Thunderhill and put it in at AR auto on my way from Thunderhill to Packwood for autocross a few years back. friction characteristics were different in it seemed to get more slippery when hot but its not particularly high viscosity when cold.

Seems like the focus of that oil was how it behaved with syncros not so much about low friction or extreme contact pressure.
bbundy is offline   Reply With Quote
Old 06-16-2014, 07:42 AM   #33
Elite AbsurdFlow Member
Thread Starter
 
Laur3ns's Avatar
 
Join Date: Mar 2008
Location: Enschede, NL
Posts: 2,058
Total Cats: 11
Default

Getting
- New motor mounts (70D)
- New gears (main+3rd)
- Some Castrol oil
- 12.9 bolts for the extension housing
- Slight detune low-rpm

Should be good for another season.
Laur3ns is offline   Reply With Quote
Old 06-18-2014, 05:08 PM   #34
Elite Member
 
Join Date: Dec 2008
Location: Colorado
Posts: 1,669
Total Cats: 36
Default

Quote:
Originally Posted by bbundy View Post
...Stacking them up like cord wood....
Can't help it, Grand Torino reference.
Attached Thumbnails
Death by Quaife-523466e01605fb069d000024.jpg  
Sparetire is offline   Reply With Quote
Old 06-18-2014, 08:43 PM   #35
Senior Member
iTrader: (4)
 
Join Date: Aug 2010
Location: Farmington Hills, MI
Posts: 510
Total Cats: 15
Default

Stupid question: Has anyone experimented with coolers on the gearbox or differential?
njn63 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Transmission Heat Shield Thread patsmx5 General Miata Chat 46 06-06-2016 11:27 AM
Quaife gear set build 2nd gear sycro question andytwo Suspension, Brakes, Drivetrain 6 05-10-2010 06:42 PM
The Romance and Sex Life of the Date Joe Perez Insert BS here 6 03-09-2010 09:27 AM
Miata Challenge 2010 Rules & Regulations emilio700 Local Meets, Events and Tech Days 16 01-14-2010 06:52 PM
Iraqi Death Count ray_sir_6 Insert BS here 34 04-24-2009 04:45 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 02:46 AM.