follow ft86club on our blog, twitter or facebook.
FT86CLUB
Ft86Club
86WORX
Register Garage Members List Calendar Search Today's Posts Mark Forums Read

Go Back   Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB > Technical Topics > Engine, Exhaust, Transmission

Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


User Tag List

Reply
 
Thread Tools Search this Thread
Old 05-02-2023, 02:04 AM   #1
gpvecchi
Senior Member
 
gpvecchi's Avatar
 
Join Date: Mar 2018
Drives: Toyota 86 GT Limited PP (Model G)
Location: Italy
Posts: 1,002
Thanks: 399
Thanked 328 Times in 182 Posts
Mentioned: 14 Post(s)
Tagged: 0 Thread(s)
GR86 driveshaft

Did someone fitted the GR86 driveshaft to older versions?
I'm looking for impressions...
gpvecchi is offline   Reply With Quote
Old 05-02-2023, 10:41 AM   #2
Ruben_86_
Member
 
Ruben_86_'s Avatar
 
Join Date: Sep 2022
Drives: Toyota GT86
Location: spain
Posts: 50
Thanks: 28
Thanked 50 Times in 22 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by gpvecchi View Post
Did someone fitted the GR86 driveshaft to older versions?
I'm looking for impressions...
What is the difference?
Ruben_86_ is offline   Reply With Quote
Old 05-02-2023, 05:14 PM   #3
gpvecchi
Senior Member
 
gpvecchi's Avatar
 
Join Date: Mar 2018
Drives: Toyota 86 GT Limited PP (Model G)
Location: Italy
Posts: 1,002
Thanks: 399
Thanked 328 Times in 182 Posts
Mentioned: 14 Post(s)
Tagged: 0 Thread(s)
It's 1,5 kg lighter.
gpvecchi is offline   Reply With Quote
Old 05-02-2023, 06:52 PM   #4
RedReplicant
Senior Member
 
Join Date: Aug 2015
Drives: None
Location: Arizona
Posts: 821
Thanks: 1,334
Thanked 1,085 Times in 456 Posts
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
The driveshaft / propshaft is lighter too, or do you mean what some people call axles? Sorry, naming varies too widely and I am curious
__________________
RedReplicant is online now   Reply With Quote
Old 05-03-2023, 01:54 AM   #5
gpvecchi
Senior Member
 
gpvecchi's Avatar
 
Join Date: Mar 2018
Drives: Toyota 86 GT Limited PP (Model G)
Location: Italy
Posts: 1,002
Thanks: 399
Thanked 328 Times in 182 Posts
Mentioned: 14 Post(s)
Tagged: 0 Thread(s)
I mean the shaft that connects gearbox to differential.
gpvecchi is offline   Reply With Quote
The Following User Says Thank You to gpvecchi For This Useful Post:
RedReplicant (05-03-2023)
Old 05-03-2023, 09:24 PM   #6
Stephen02
Member
 
Stephen02's Avatar
 
Join Date: May 2022
Drives: 2013 Manual Trans FR-S
Location: Central California
Posts: 45
Thanks: 40
Thanked 22 Times in 11 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Why not just get a carbon fiber driveshaft and save 5.4kg and remove some of the drivetrain slop?
Stephen02 is offline   Reply With Quote
Old 05-03-2023, 09:46 PM   #7
NoHaveMSG
Senior Member
 
NoHaveMSG's Avatar
 
Join Date: Jan 2018
Drives: Crapcan
Location: Oregon
Posts: 10,918
Thanks: 17,601
Thanked 16,005 Times in 7,208 Posts
Mentioned: 104 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by Stephen02 View Post
Why not just get a carbon fiber driveshaft and save 5.4kg and remove some of the drivetrain slop?
Most of the drivetrain slop is in the diff and CV's. Put your car on jackstands, lock park brake and rotate the driveshaft by hand and watch the CV's.

I can say I saw no improvement in performance with a vastly lighter aluminum driveshaft and doubt 1.5kg's is really going to matter. One of those end of the line mods to me.
__________________
"Experience is the hardest kind of teacher. It gives you the test first and the lesson afterward." -Oscar Wilde.
NoHaveMSG is offline   Reply With Quote
The Following 3 Users Say Thank You to NoHaveMSG For This Useful Post:
blsfrs (05-04-2023), RedReplicant (05-04-2023), Stephen02 (05-04-2023)
Old 05-04-2023, 02:01 AM   #8
gpvecchi
Senior Member
 
gpvecchi's Avatar
 
Join Date: Mar 2018
Drives: Toyota 86 GT Limited PP (Model G)
Location: Italy
Posts: 1,002
Thanks: 399
Thanked 328 Times in 182 Posts
Mentioned: 14 Post(s)
Tagged: 0 Thread(s)
A single piece driveshaft will probably vibrate because of wrong pinion angle. You can find a lot of threads about this.
gpvecchi is offline   Reply With Quote
The Following 2 Users Say Thank You to gpvecchi For This Useful Post:
RedReplicant (05-04-2023), Ruben_86_ (05-04-2023)
Old 05-04-2023, 02:52 AM   #9
NoHaveMSG
Senior Member
 
NoHaveMSG's Avatar
 
Join Date: Jan 2018
Drives: Crapcan
Location: Oregon
Posts: 10,918
Thanks: 17,601
Thanked 16,005 Times in 7,208 Posts
Mentioned: 104 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by gpvecchi View Post
A single piece driveshaft will probably vibrate because of wrong pinion angle. You can find a lot of threads about this.

I didnít see anyone mention vibration with a single piece but since you want to bring it up.

Going to a single piece driveshaft lowers the critical speed of the drive shaft which causes vibration, longer shaft, lower critical speed. There are many threads on this. One of them was a DSS aluminum driveshaft which failed on the dyno because of this. DSS has admitted this is the issue and will reshaft an existing DSS driveshaft if you pay them too. The aluminum needs to be at least 3.5Ē to bring the critical speed up enough to work on our cars though there may be clearance issues, I talked to DSS about this myself as I have one of their aluminum shafts. The carbon does have a higher critical speed and issues with vibration on those may be down to pinion angle also being a factor but nobody has confirmed.
__________________
"Experience is the hardest kind of teacher. It gives you the test first and the lesson afterward." -Oscar Wilde.
NoHaveMSG is offline   Reply With Quote
The Following User Says Thank You to NoHaveMSG For This Useful Post:
blsfrs (05-04-2023)
Old 05-04-2023, 02:58 AM   #10
Stephen02
Member
 
Stephen02's Avatar
 
Join Date: May 2022
Drives: 2013 Manual Trans FR-S
Location: Central California
Posts: 45
Thanks: 40
Thanked 22 Times in 11 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Fwiw people on this thread are saying that the DSS carbon fiber driveshaft didn't cause any additional NVH https://www.ft86club.com/forums/show...t=39701&page=3. But as NoHaveMSG said, he didn't notice any performance increase from going to an aluminum driveshaft which is lighter than the 2nd gen driveshaft. There are more cost effective ways to cut weight provided that you havent exhausted your other options.
Stephen02 is offline   Reply With Quote
The Following 2 Users Say Thank You to Stephen02 For This Useful Post:
blsfrs (05-04-2023), NoHaveMSG (05-04-2023)
Old 05-04-2023, 08:55 AM   #11
Grady
Senior Member
 
Grady's Avatar
 
Join Date: Jun 2017
Drives: BRZ Yellow, 2019 Ranger, 2011 Evora
Location: Dallas
Posts: 1,654
Thanks: 348
Thanked 1,450 Times in 755 Posts
Mentioned: 14 Post(s)
Tagged: 1 Thread(s)
Garage
Quote:
Originally Posted by NoHaveMSG View Post
I didnít see anyone mention vibration with a single piece but since you want to bring it up.

Going to a single piece driveshaft lowers the critical speed of the drive shaft which causes vibration, longer shaft, lower critical speed. There are many threads on this. One of them was a DSS aluminum driveshaft which failed on the dyno because of this. DSS has admitted this is the issue and will reshaft an existing DSS driveshaft if you pay them too. The aluminum needs to be at least 3.5Ē to bring the critical speed up enough to work on our cars though there may be clearance issues, I talked to DSS about this myself as I have one of their aluminum shafts. The carbon does have a higher critical speed and issues with vibration on those may be down to pinion angle also being a factor but nobody has confirmed.
I can confirm on my Verus CF drive shaft it has a resonance at around 130. I have not looked into pinion angle or anything since the tracks around me are tight and 110 is is around my max speed so it is not an issue.
Grady is offline   Reply With Quote
The Following 2 Users Say Thank You to Grady For This Useful Post:
blsfrs (05-04-2023), NoHaveMSG (05-04-2023)
Old 05-04-2023, 10:00 AM   #12
blsfrs
Senior Member
 
blsfrs's Avatar
 
Join Date: Dec 2018
Drives: 2013 frs base
Location: central Virginia
Posts: 1,000
Thanks: 1,435
Thanked 754 Times in 408 Posts
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Buyer beware. Most vendors don't provide and warning about critical speed or pinion angle for the twins. Curiously the DSS shaft for WRX/STI does come with a 155 mph recommended limit. See below.

DSS 12-20 Scion FR-S/Subaru BRZ/Toyota GT86 Manual 3in Aluminum 1-Piece Driveshaft - TOSH86-A
click to zoom in

DSS 12-20 Scion FR-S/Subaru BRZ/Toyota GT86 Manual 3in Aluminum 1-Piece Driveshaft - TOSH86-A
Description
DSS 2012 Scion FR-S / Subaru BRZ / Toyota GT86 Manual 3in Aluminum 1-piece Driveshaft


Get the best prices and service on Driveshaft Shop products at Armageddon Turbo Systems (www.goturbo.net). We offer DSS's full line with the the best service possible.

For 30+ years The Driveshaft Shop has been creating and manufacturing innovative drivetrain solutions for street and racing use. Driveshaft Shop axles and driveshafts have been integral in helping racers set, and reset world records in categories of Front Wheel Drive, Rear Wheel Drive, and All Wheel Drive racing. We are a full CNC machine shop and manufacturing facility located in Salisbury, North Carolina, USA. Each driveshaft we produce is dynamically balanced at over 9000 RPMs to ensure unbeatable reliability. We offer the highest quality CV axles and driveshafts made from Steel, Aluminum, and Carbon Fiber for Sport Compact, European, and Modern Muscle car applications, not to mention our capability to build custom for just about anything. “We Specialize in the Impossible”



Get the best pricing and service on Driveshaft Shop parts today at www.goturbo.net - Armageddon Turbo Systems!
blsfrs is offline   Reply With Quote
The Following User Says Thank You to blsfrs For This Useful Post:
NoHaveMSG (05-04-2023)
Old 05-04-2023, 12:31 PM   #13
NoHaveMSG
Senior Member
 
NoHaveMSG's Avatar
 
Join Date: Jan 2018
Drives: Crapcan
Location: Oregon
Posts: 10,918
Thanks: 17,601
Thanked 16,005 Times in 7,208 Posts
Mentioned: 104 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by Stephen02 View Post
Fwiw people on this thread are saying that the DSS carbon fiber driveshaft didn't cause any additional NVH https://www.ft86club.com/forums/show...t=39701&page=3. But as NoHaveMSG said, he didn't notice any performance increase from going to an aluminum driveshaft which is lighter than the 2nd gen driveshaft. There are more cost effective ways to cut weight provided that you havent exhausted your other options.
I don't think most people have an issue with the CF shafts but some have reported vibration. I think pinion angle may have a little to do with it but CS seems to be a bigger factor. User @prandelia was one of the first I saw to bring this up. Then @blsfrs had his failure of a DSS aluminum shaft. I always had issues with my DSS AL shaft and had it rebalanced a couple times before I pulled it out. DSS wants like 3-350 to reshaft it you pay shipping.

https://www.ft86club.com/forums/show...8&postcount=31
__________________
"Experience is the hardest kind of teacher. It gives you the test first and the lesson afterward." -Oscar Wilde.
NoHaveMSG is offline   Reply With Quote
The Following User Says Thank You to NoHaveMSG For This Useful Post:
blsfrs (05-04-2023)
Old 05-04-2023, 05:08 PM   #14
gpvecchi
Senior Member
 
gpvecchi's Avatar
 
Join Date: Mar 2018
Drives: Toyota 86 GT Limited PP (Model G)
Location: Italy
Posts: 1,002
Thanks: 399
Thanked 328 Times in 182 Posts
Mentioned: 14 Post(s)
Tagged: 0 Thread(s)
This is all absolutely OT. There are tons of threads for single piece driveshafts and this is not one of them.
Moderators, please clean the thread.
gpvecchi is offline   Reply With Quote
 
Reply

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
SOLD Please Remove. (Dallas, TX) Driveshaft Shop Carbon Fiber 6MT Driveshaft Brzzee Transmission and Driveline 1 09-14-2018 10:22 AM
Driveshaft Shop Carbon Driveshaft for Manual Transmission for Sale!! (SOLD) GT86Asia Transmission and Driveline 3 07-30-2018 05:06 PM
Nameless 2.5" catted/resonated overpipe + Driveshaft Shop aluminum driveshaft #my86build Engine, Exhaust, Transmission 11 02-04-2017 06:42 PM
New The Driveshaft Shop Carbon Fiber 1-Piece Driveshaft Evasive Motorsports Engine, Exhaust, Transmission 1 09-24-2013 03:27 PM


All times are GMT -4. The time now is 02:28 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2023 DragonByte Technologies Ltd.

Garage vBulletin Plugins by Drive Thru Online, Inc.