Notices
Drivetrain Gearbox, Diffs & Driveshafts etc

What is a double cone 3rd syncro?

Thread Tools
 
Search this Thread
 
Old 09 July 2008, 06:51 PM
  #1  
smokingkills
Scooby Regular
Thread Starter
iTrader: (3)
 
smokingkills's Avatar
 
Join Date: Dec 2005
Location: MY 98 STI 4
Posts: 490
Likes: 0
Received 0 Likes on 0 Posts
Default What is a double cone 3rd syncro?

As per title, according to the gearbox codes mine has this. Does it make it make it less likely to lunch 3rd if running 410/440? Anyone else running these figures with an STI 4 box, whats the general census on reliability?

Cheers

SK
Old 09 July 2008, 11:37 PM
  #2  
scooby-matt
Scooby Regular
iTrader: (3)
 
scooby-matt's Avatar
 
Join Date: Oct 2007
Posts: 242
Likes: 0
Received 0 Likes on 0 Posts
Default

what gearbox code you got?
52 or 54?
Old 10 July 2008, 12:05 AM
  #3  
smokingkills
Scooby Regular
Thread Starter
iTrader: (3)
 
smokingkills's Avatar
 
Join Date: Dec 2005
Location: MY 98 STI 4
Posts: 490
Likes: 0
Received 0 Likes on 0 Posts
Default

the code is: TY752VBCAA
Old 10 July 2008, 12:06 AM
  #4  
merlin24
Scooby Regular
iTrader: (1)
 
merlin24's Avatar
 
Join Date: May 2006
Location: RM Performance
Posts: 3,032
Received 2 Likes on 2 Posts
Default

The double cone synchro creates greater friction/torque for synchronising to the relative gear and provides a better shift "feel".
IMHO - At the power/torque figures you have quoted - its only a matter of time before the gearbox strips something.

Mick
Old 10 July 2008, 01:09 PM
  #5  
APIDavid
Former Sponsor
Support Scoobynet!
Support Scoobynet!Support Scoobynet!
iTrader: (4)
 
APIDavid's Avatar
 
Join Date: Jul 2003
Location: @Junc 12, M40 Warwicksh; 01926 614522 CV33 9PL -Use 9GX for Satnav. South Mids Alcatek ECu dealer
Posts: 6,377
Likes: 0
Received 3 Likes on 3 Posts
Default

That hp & torque on a TY 752 anything, means it'll be toast sometime soon. Don't waste any money on it - upgrade.

Even a TY754 from a 99-on car, will not last too long at that power and torque.

Time to start saving for a PPG or a 6 speed conversion.

David APi

Agents for Simtek, the most exciting new Ecu for years
Old 10 July 2008, 08:39 PM
  #6  
smokingkills
Scooby Regular
Thread Starter
iTrader: (3)
 
smokingkills's Avatar
 
Join Date: Dec 2005
Location: MY 98 STI 4
Posts: 490
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks chaps. I was hoping there was something special about the box, guess its PPG then
Old 11 July 2008, 09:11 AM
  #7  
APIDavid
Former Sponsor
Support Scoobynet!
Support Scoobynet!Support Scoobynet!
iTrader: (4)
 
APIDavid's Avatar
 
Join Date: Jul 2003
Location: @Junc 12, M40 Warwicksh; 01926 614522 CV33 9PL -Use 9GX for Satnav. South Mids Alcatek ECu dealer
Posts: 6,377
Likes: 0
Received 3 Likes on 3 Posts
Default

Originally Posted by smokingkills
Thanks chaps. I was hoping there was something special about the box, guess its PPG then
Gimme a call when you're ready to move, we can sort something out for you by way of a good deal.

David APi
Old 21 July 2008, 10:37 PM
  #8  
smokingkills
Scooby Regular
Thread Starter
iTrader: (3)
 
smokingkills's Avatar
 
Join Date: Dec 2005
Location: MY 98 STI 4
Posts: 490
Likes: 0
Received 0 Likes on 0 Posts
Default

This is the latest round of abuse this box has taken (probably in excess of quoted power levels running @ 1.8 bar ) YouTube - clspc94's Videos I did 12 runs in total! Is it possible that I have a decent box or do they just give up at random moments?
Old 22 July 2008, 12:57 PM
  #9  
j16jrf
Scooby Regular
iTrader: (3)
 
j16jrf's Avatar
 
Join Date: Oct 2007
Location: newtownards
Posts: 1,002
Likes: 0
Received 0 Likes on 0 Posts
Default

car does go very well mate. but the gearbox will let go at some stage without warning.
i would go for the PPG to keep the weight down the 6 speed is a very heavy unit

David @ API does a cracking lightened flywheel and clutch kit that i put in mine too
Old 22 July 2008, 01:16 PM
  #10  
APIDavid
Former Sponsor
Support Scoobynet!
Support Scoobynet!Support Scoobynet!
iTrader: (4)
 
APIDavid's Avatar
 
Join Date: Jul 2003
Location: @Junc 12, M40 Warwicksh; 01926 614522 CV33 9PL -Use 9GX for Satnav. South Mids Alcatek ECu dealer
Posts: 6,377
Likes: 0
Received 3 Likes on 3 Posts
Default

Originally Posted by j16jrf
car does go very well mate. but the gearbox will let go at some stage without warning.
i would go for the PPG to keep the weight down the 6 speed is a very heavy unit

David @ API does a cracking lightened flywheel and clutch kit that i put in mine too
j16jrf Thanks for the promo, however poor choice of words mate. There is no ' cracking ' with my flywheels they are as smooth as,

as,

as,

Well, a smooth thing.

David APi
Old 22 July 2008, 05:40 PM
  #11  
smokingkills
Scooby Regular
Thread Starter
iTrader: (3)
 
smokingkills's Avatar
 
Join Date: Dec 2005
Location: MY 98 STI 4
Posts: 490
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by APIDavid
j16jrf Thanks for the promo, however poor choice of words mate. There is no ' cracking ' with my flywheels they are as smooth as,

as,

as,

Well, a smooth thing.

David APi
Cheers David, you have a pm
Old 23 July 2008, 09:46 AM
  #12  
APIDavid
Former Sponsor
Support Scoobynet!
Support Scoobynet!Support Scoobynet!
iTrader: (4)
 
APIDavid's Avatar
 
Join Date: Jul 2003
Location: @Junc 12, M40 Warwicksh; 01926 614522 CV33 9PL -Use 9GX for Satnav. South Mids Alcatek ECu dealer
Posts: 6,377
Likes: 0
Received 3 Likes on 3 Posts
Default

Originally Posted by smokingkills
Cheers David, you have a pm
Replied
Old 23 July 2008, 04:27 PM
  #13  
j16jrf
Scooby Regular
iTrader: (3)
 
j16jrf's Avatar
 
Join Date: Oct 2007
Location: newtownards
Posts: 1,002
Likes: 0
Received 0 Likes on 0 Posts
Default

j16jrf Thanks for the promo, however poor choice of words mate. There is no ' cracking ' with my flywheels they are as smooth as,

as,

as,

Well, a smooth thing.

David APi




sorry Northern Ireland slang there never even thought lol.

have to pay more attention to the communication barrier from norn iron hahaha.
Old 23 July 2008, 05:03 PM
  #14  
APIDavid
Former Sponsor
Support Scoobynet!
Support Scoobynet!Support Scoobynet!
iTrader: (4)
 
APIDavid's Avatar
 
Join Date: Jul 2003
Location: @Junc 12, M40 Warwicksh; 01926 614522 CV33 9PL -Use 9GX for Satnav. South Mids Alcatek ECu dealer
Posts: 6,377
Likes: 0
Received 3 Likes on 3 Posts
Default

Originally Posted by j16jrf
j16jrf Thanks for the promo, however poor choice of words mate. There is no ' cracking ' with my flywheels they are as smooth as,

as,

as,

Well, a smooth thing.

David APi




sorry Northern Ireland slang there never even thought lol.

have to pay more attention to the communication barrier from norn iron hahaha.
I'm OK with it - my lot came from County Cork a few generations ago. Our name is O'Brien which as every true Irishman knows, means I am a relative of Brian Boru - one time King of the place . So watch it, or l'll pull a few strings

I just wanted to make sure all these commoners understood us Micks & Paddies

David
Old 24 July 2008, 02:30 PM
  #15  
j16jrf
Scooby Regular
iTrader: (3)
 
j16jrf's Avatar
 
Join Date: Oct 2007
Location: newtownards
Posts: 1,002
Likes: 0
Received 0 Likes on 0 Posts
Default

hahahaha well my family are originally scottish and decendants of King William woohoo so we are both royalty hahaha
the only O'Briens now are the sandwich people lol
Old 24 July 2008, 09:22 PM
  #16  
merlin24
Scooby Regular
iTrader: (1)
 
merlin24's Avatar
 
Join Date: May 2006
Location: RM Performance
Posts: 3,032
Received 2 Likes on 2 Posts
Default

Originally Posted by smokingkills
As per title, according to the gearbox codes mine has this. Does it make it make it less likely to lunch 3rd if running 410/440? Anyone else running these figures with an STI 4 box, whats the general census on reliability?

Cheers

SK

Double cone but not suitable for your STi Version 4 running 410/440
.
.
.
.
.
.
.
.
.
.
.




Old 24 July 2008, 09:47 PM
  #17  
j16jrf
Scooby Regular
iTrader: (3)
 
j16jrf's Avatar
 
Join Date: Oct 2007
Location: newtownards
Posts: 1,002
Likes: 0
Received 0 Likes on 0 Posts
Default

pmsl 99 please
Old 25 July 2008, 05:54 PM
  #18  
smokingkills
Scooby Regular
Thread Starter
iTrader: (3)
 
smokingkills's Avatar
 
Join Date: Dec 2005
Location: MY 98 STI 4
Posts: 490
Likes: 0
Received 0 Likes on 0 Posts
Default

I'll get my coat
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
JimBowen
ICE
5
02 July 2023 01:54 PM
Reshard1977
Subaru Parts
17
14 January 2016 02:36 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
12
18 November 2015 07:03 AM
SunnySubie
Engine Management and ECU Remapping
4
06 October 2015 09:43 PM
Ganz1983
Subaru
5
02 October 2015 09:22 AM



Quick Reply: What is a double cone 3rd syncro?



All times are GMT +1. The time now is 11:51 PM.