Go Back   EcoModder Forum > EcoModding > EcoModding Central
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 07-17-2020, 05:15 PM   #1 (permalink)
Master EcoModder
 
Join Date: May 2010
Location: Illinois
Posts: 475

Oh Deer - '03 Ford Ranger XL
90 day: 33.97 mpg (US)
Thanks: 55
Thanked 91 Times in 72 Posts
How's this for some tall gearing?

https://www.tremec.com/anexos/TR-908...duct.sheet.pdf

Saw this a bit ago. Man that's some tall gearing. I wonder what it's used in? I also wonder if it could be adapted for some of our "special" vehicles. RWD?

__________________
If nice guys finish last, are you willing to pay the price to finish first ?




  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 07-17-2020, 05:44 PM   #2 (permalink)
Cyborg ECU
 
California98Civic's Avatar
 
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,299

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 66.42 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 2,373
Thanked 2,172 Times in 1,469 Posts
Quote:
Originally Posted by hat_man View Post
https://www.tremec.com/anexos/TR-908...duct.sheet.pdf

Saw this a bit ago. Man that's some tall gearing. I wonder what it's used in? I also wonder if it could be adapted for some of our "special" vehicles. RWD?
Wow. Looks like 6, 7, and 8 are each taller than 5th in a 1992-1995 Honda Civic VX. That is tall!
__________________
See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.



  Reply With Quote
Old 07-18-2020, 12:17 AM   #3 (permalink)
Too many cars
 
Gasoline Fumes's Avatar
 
Join Date: Oct 2009
Location: New York State
Posts: 1,568

CRXFi - '88 Honda CRX XFi

Insight 256 - '00 Honda Insight
Team Honda
Gen-1 Insights

Insight 5342 (no IMA) - '00 Honda Insight
Team Honda
Gen-1 Insights
90 day: 66.3 mpg (US)
Thanks: 1,316
Thanked 781 Times in 465 Posts
Quote:
Originally Posted by hat_man View Post
I wonder what it's used in?
C8 Corvette
__________________
2000 Honda Insight
2000 Honda Insight
2000 Honda Insight
2006 Honda Insight (parts car)
1988 Honda CRXFi
1994 Geo Metro

  Reply With Quote
Old 07-18-2020, 03:13 AM   #4 (permalink)
Master EcoModder
 
redneck's Avatar
 
Join Date: Jun 2009
Location: SC Lowcountry
Posts: 1,795

Geo XL1 - '94 Geo Metro
Team Metro
Boat tails and more mods
90 day: 72.22 mpg (US)

Big, Bad & Flat - '01 Dodge Ram 3500 SLT
Team Cummins
90 day: 21.13 mpg (US)
Thanks: 226
Thanked 1,353 Times in 711 Posts
Quote:
Originally Posted by Gasoline Fumes View Post
C8 Corvette
👍


https://www.midenginecorvetteforum.c...vette-stingray

>

.
__________________


Woke means you're a loser....everything woke turns to ****.

Donald J Trump 8/21/21




Disclaimer...

I’m not a climatologist, aerodynamicist, virologist, physicist, astrodynamicist or marine biologist..

But...

I play one on the internet.

  Reply With Quote
Old 07-18-2020, 11:39 PM   #5 (permalink)
EcoModding Apprentice
 
Join Date: Oct 2009
Location: Portland OR
Posts: 204
Thanks: 1
Thanked 30 Times in 21 Posts
Its also going in a couple other "super car" class machines, it was joint developed between Tremec/GM/Chrysler/a couple truck builders,, I ran across it googling around..

IIRC they claim 2,000,000 mile life expectancy for the gear box, about half that for the 2 clutches.
__________________
If it has a motor its worth playing with.......
  Reply With Quote
Old 07-19-2020, 10:30 AM   #6 (permalink)
Master EcoModder
 
Join Date: May 2010
Location: Illinois
Posts: 475

Oh Deer - '03 Ford Ranger XL
90 day: 33.97 mpg (US)
Thanks: 55
Thanked 91 Times in 72 Posts
Mid engine Corvette eh? Can you imagine this adapted into a Fiero GT? Wouldn't that be a hoot do drive.
__________________
If nice guys finish last, are you willing to pay the price to finish first ?




  Reply With Quote
Old 07-19-2020, 01:53 PM   #7 (permalink)
Master EcoModder
 
aardvarcus's Avatar
 
Join Date: Apr 2012
Location: Evensville, TN
Posts: 676

Deep Blue - '94 GMC Suburban K2500 SLE
90 day: 23.75 mpg (US)

Griffin (T4R) - '99 Toyota 4Runner SR5
90 day: 25.43 mpg (US)
Thanks: 237
Thanked 580 Times in 322 Posts
The .33 over drive looks impressive on paper, but coupled to that low rear in gearing it's effectively the same as the 6 speed with the .5 over drive and 3.23 gears.
  Reply With Quote
Old 07-19-2020, 02:35 PM   #8 (permalink)
Master EcoModder
 
Join Date: May 2010
Location: Illinois
Posts: 475

Oh Deer - '03 Ford Ranger XL
90 day: 33.97 mpg (US)
Thanks: 55
Thanked 91 Times in 72 Posts
Well that gives me some hope then.

My long term project is a 1976 Triumph TR7 with a GM L33 V8 (5.3L 300 rwhp after mods 340 ft/lbs Tq) and a Tremec T-56 6 speed (0.50 6th gear) and either 3.27 or 3.31 rear end and 24" tires. If I did the math right it should be around 1600 rpm at 70 mph and only weigh around 2600 lbs.

Hopefully EM will still be here when it's done (told you it was long term) and I can post some numbers. LoL
__________________
If nice guys finish last, are you willing to pay the price to finish first ?




  Reply With Quote
Old 07-20-2020, 01:17 AM   #9 (permalink)
It's all about Diesel
 
cRiPpLe_rOoStEr's Avatar
 
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 12,548
Thanks: 0
Thanked 1,622 Times in 1,447 Posts
I always take DCTs with a grain of salt, even though wet-clutch ones seem to fare better than dry-clutch. However, this one has caught my attention mostly for the low final ratio due to the presence of a transfer box, and the gears being quite close. Makes me wonder how a version with a taller final ratio and the gears spreaded further from each other could fare.
  Reply With Quote
Old 07-20-2020, 10:37 AM   #10 (permalink)
Master EcoModder
 
Join Date: May 2019
Location: California
Posts: 512

2020 - '08 Chevy Tahoe H
Last 3: 18.4 mpg (US)

2021 - '08 Chevy Tahoe H
90 day: 17.08 mpg (US)

2022 - '08 chevy Tahoe LT
Last 3: 14.38 mpg (US)

2023 - '08 Chevy Tahoe
90 day: 25.57 mpg (US)
Thanks: 2
Thanked 105 Times in 96 Posts
Quote:
Originally Posted by hat_man View Post
Well that gives me some hope then.

My long term project is a 1976 Triumph TR7 with a GM L33 V8 (5.3L 300 rwhp after mods 340 ft/lbs Tq) and a Tremec T-56 6 speed (0.50 6th gear) and either 3.27 or 3.31 rear end and 24" tires. If I did the math right it should be around 1600 rpm at 70 mph and only weigh around 2600 lbs.

Hopefully EM will still be here when it's done (told you it was long term) and I can post some numbers. LoL
you can expect your fuel efficiency to be at 23mpg still ...

tahoe hybrid weighing in at 6500 pounds can do 85mph at 1800rpm (4 banger mode)barely get 26mpg..

it's in EVT mode when shifted to M4 it just the rpm to 2500 or so


6.0L engine LS2 based


at 30-40MPH she runs at 1,000 rpm..
45mph is 1050 rpm

at 40MPH steady you can expect to get about 40MPG in a 2600 pound car

I would expect the final numbers to be about 30City /40Highway

I suggest getting a hybrid V8 and disabling the AFM to use in it, the fuel efficiency will be in the 30-35 range.. even with it disabled
which is way better then the 5.3L which will be the mid to upper teens

It has way more power then a 5.3L engine (379HP/472ft combined output )

i don't think you will even need a drive shaft just connect the transmission output directly to the rear diff


Last edited by Tahoe_Hybrid; 07-20-2020 at 10:52 AM..
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com