Trackspeed's '02SE "Acamas" - EFR6758, TSE motor, 500whp or bust
#243
SADFab Destructive Testing Engineer
![](/mt2011/images_td/ranks/supporter1.gif)
![](/mt2011/images_td/ranks/moderator.png)
iTrader: (5)
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 18,642
Total Cats: 1,866
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
It's a serious struggle. If a 99-04 fits the bill they are significantly cheaper, and even newer/nicer. But the gearing is slightly different.
Edit: looks like it does have a .68 5th and the slightly different other ratios. I wonder how they would do.
http://www.standardtransmission.com/.../TTC-specs.pdf
Edit: looks like it does have a .68 5th and the slightly different other ratios. I wonder how they would do.
http://www.standardtransmission.com/.../TTC-specs.pdf
Last edited by aidandj; 09-09-2016 at 07:48 PM.
#244
SadFab CEO
![](/mt2011/images_td/ranks/supporter1.gif)
iTrader: (3)
Join Date: Sep 2012
Location: your mom's house phoenix, AZ
Posts: 4,560
Total Cats: 1,142
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
?
Identification Key to Borg-Warner T5 transmission ID Tags
Edit: I see this was already posted, ignore me.
Identification Key to Borg-Warner T5 transmission ID Tags
Edit: I see this was already posted, ignore me.
Last edited by hi_im_sean; 09-09-2016 at 08:16 PM.
#246
SADFab Destructive Testing Engineer
![](/mt2011/images_td/ranks/supporter1.gif)
![](/mt2011/images_td/ranks/moderator.png)
iTrader: (5)
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 18,642
Total Cats: 1,866
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
I'm going to do a little digging and try and find some local to test out.
Mods feel free to break this discussion off into its own thread . It would be great if Mt.net became the go to t5 resource lolol.
Mods feel free to break this discussion off into its own thread . It would be great if Mt.net became the go to t5 resource lolol.
#248
SADFab Destructive Testing Engineer
![](/mt2011/images_td/ranks/supporter1.gif)
![](/mt2011/images_td/ranks/moderator.png)
iTrader: (5)
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 18,642
Total Cats: 1,866
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Probably apples to oranges but the t5 in my roommates s10 is the sexiest trans I've ever shifted.
I'm mostly doing it for the bolt in huge torque solutions. When I run into that money tree I've been looking for.
I'm mostly doing it for the bolt in huge torque solutions. When I run into that money tree I've been looking for.
#254
SADFab Destructive Testing Engineer
![](/mt2011/images_td/ranks/supporter1.gif)
![](/mt2011/images_td/ranks/moderator.png)
iTrader: (5)
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 18,642
Total Cats: 1,866
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Full race 6758 specifications: BorgWarner EFR 6758 Turbo - Full-Race.com
Compressor Wheel OD: 67mm
Compressor inducer: 53.9mm
Full race 6258 specifications: BorgWarner EFR 6258 Turbo - Full-Race.com
Compressor Wheel OD: 62mm
Compressor inducer: 49.6mm
They both have a 58mm turbine wheel. Hence the 62/6758
Compressor Wheel OD: 67mm
Compressor inducer: 53.9mm
Full race 6258 specifications: BorgWarner EFR 6258 Turbo - Full-Race.com
Compressor Wheel OD: 62mm
Compressor inducer: 49.6mm
They both have a 58mm turbine wheel. Hence the 62/6758
#256
SADFab Destructive Testing Engineer
![](/mt2011/images_td/ranks/supporter1.gif)
![](/mt2011/images_td/ranks/moderator.png)
iTrader: (5)
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 18,642
Total Cats: 1,866
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
I'm still a little confused what you are talking about.
I just pulled apart my 6758 and the compressor housing fits very closely to the wheel. I guess you could like machine it out, but thats just like upgrading to the next compressor housing size.
I just pulled apart my 6758 and the compressor housing fits very closely to the wheel. I guess you could like machine it out, but thats just like upgrading to the next compressor housing size.