Engine, Drivetrain & Forced-Induction
Have Technical Questions or Done Modifications to the G37? Find out the answer in here!

Driveshaft Upgrade

Thread Tools
 
Search this Thread
 
Old 01-26-2018, 11:40 PM
  #106  
PNW_IPL
Registered Member
iTrader: (5)
 
PNW_IPL's Avatar
 
Join Date: Mar 2016
Posts: 3,048
Received 543 Likes on 435 Posts
Subd for review.
The following users liked this post:
Calg37USMC (01-27-2018)
Old 01-27-2018, 12:19 AM
  #107  
Calg37USMC
Premier Member

 
Calg37USMC's Avatar
 
Join Date: Jun 2017
Location: Seattle, Wa
Posts: 266
Received 83 Likes on 58 Posts
Update: DriveShaft was a tad bit long it will get shorted down. I will most likely have my car good to go end of next week. Also I purchased the Jegs universal driveshaft safety loop for 24.00$ and it does work with our cars .
Old 01-27-2018, 08:15 AM
  #108  
RMB5190
Super Moderator
iTrader: (2)
 
RMB5190's Avatar
 
Join Date: Dec 2016
Location: Maryland
Posts: 3,112
Received 500 Likes on 429 Posts
Very good call. read some horror stories of guys who cheaped out and it cost them dearly when the drive shaft blew.
Old 01-27-2018, 08:28 AM
  #109  
Mattlorentzoe
Premier Member

iTrader: (4)
 
Mattlorentzoe's Avatar
 
Join Date: Jun 2015
Location: Gwinnett County, Georgia
Posts: 773
Received 156 Likes on 119 Posts
Originally Posted by Calg37USMC
Update: DriveShaft was a tad bit long it will get shorted down. I will most likely have my car good to go end of next week. Also I purchased the Jegs universal driveshaft safety loop for 24.00$ and it does work with our cars .
<div style="text-align:left;"></div><div style="text-align:left;">That’s cool about the safety loop. Would love to see where and how it’s mounted (I’m going to install one when I do the driveshaft upgrade) if you get a minute.</div><div style="text-align:left;">Also in for your review of the driveshaft. Mainly interested in your reaction to how daily driving (noises, etc) and overall impressions vs oem.</div><div style="text-align:left;">Thanks</div>
Old 02-02-2018, 03:28 PM
  #110  
Calg37USMC
Premier Member

 
Calg37USMC's Avatar
 
Join Date: Jun 2017
Location: Seattle, Wa
Posts: 266
Received 83 Likes on 58 Posts
Drive shaft loop will be 6” from front u-joint. Bolted to the car.

Driveshaft is now at proper length. Will update you guys tomorrow most likely, gotta head to work. Then give me some time to write up a review after experiencing my car a tad bit. But I will let y’all know about first impressions.
The following users liked this post:
projectpanda13 (02-02-2018)
Old 02-05-2018, 12:28 AM
  #111  
Calg37USMC
Premier Member

 
Calg37USMC's Avatar
 
Join Date: Jun 2017
Location: Seattle, Wa
Posts: 266
Received 83 Likes on 58 Posts
Update: I have driven the car for two days now. There is a small increase in NVH but if you’re are along the same lines as me with poly bushings then it shouldn’t really affect you.

No harsh vibrations what so ever I have pushed the car to triple digits and the Driveshaft feels really well balanced.

I also had the pleasure to put my car on the Dyno hence the triple digits . Comparing to my last Dyno looks like torque was transferred to the wheels better. Hers the vid.
5th gear run.

Anymore questions feel free to ask. Again let me get some good amount of seat time to actually write up a thorough review.
Old 02-05-2018, 09:48 AM
  #112  
ZahyMatar
Registered Member
iTrader: (4)
 
ZahyMatar's Avatar
 
Join Date: Sep 2015
Location: Franklin Park, NJ
Posts: 1,705
Received 339 Likes on 233 Posts
What were the dyno numbers before and after?
Old 02-05-2018, 01:11 PM
  #113  
Calg37USMC
Premier Member

 
Calg37USMC's Avatar
 
Join Date: Jun 2017
Location: Seattle, Wa
Posts: 266
Received 83 Likes on 58 Posts
Something I’ve done prior to the DS is sending a false signal to my knock sensor so I wasn’t able to get correct numbers. I know this because i dynoed my car back in December after all my poly mounts and baffled oil pan to make sure the engine was healthy still. We did several runs where my engine would pull timing up top and some runs it was fine. Idk if anyone else has experience this but I would like to know if I’m able to fix it as well. Also note I have month and half old gas, I took some damage to my mid pipes when my OEM DS blew. At the time of the first dyno i had brand new filters on the Gen 3’s and new spark plugs. Lots of variables but still I think it’s making decent power.






Before obviously



After. 4th gear looks to have gained some TQ.

Last edited by Calg37USMC; 02-05-2018 at 01:25 PM.
Old 02-05-2018, 09:47 PM
  #114  
Mattlorentzoe
Premier Member

iTrader: (4)
 
Mattlorentzoe's Avatar
 
Join Date: Jun 2015
Location: Gwinnett County, Georgia
Posts: 773
Received 156 Likes on 119 Posts
Thanks for posting your graphs.
Sorry if this is redundant but was curious what mods are different between dyno runs? That’s great numbers you made. Is it just the driveshaft that’s different?

Originally Posted by Calg37USMC
Something I’ve done prior to the DS is sending a false signal to my knock sensor so I wasn’t able to get correct numbers. I know this because i dynoed my car back in December after all my poly mounts and baffled oil pan to make sure the engine was healthy still. We did several runs where my engine would pull timing up top and some runs it was fine. Idk if anyone else has experience this but I would like to know if I’m able to fix it as well. Also note I have month and half old gas, I took some damage to my mid pipes when my OEM DS blew. At the time of the first dyno i had brand new filters on the Gen 3’s and new spark plugs. Lots of variables but still I think it’s making decent power.






Before obviously



After. 4th gear looks to have gained some TQ.
Old 02-05-2018, 11:12 PM
  #115  
Calg37USMC
Premier Member

 
Calg37USMC's Avatar
 
Join Date: Jun 2017
Location: Seattle, Wa
Posts: 266
Received 83 Likes on 58 Posts
Originally Posted by lorentzoe45
Thanks for posting your graphs.
Sorry if this is redundant but was curious what mods are different between dyno runs? That’s great numbers you made. Is it just the driveshaft that’s different?
Supporting power mods yes... but i didn’t have my poly mounts and subframe incerts and baffled oil pan on the first Dyno graph. I think the vibrations are sending a false knock signal unless it’s coming from my clutch.
Old 02-13-2018, 03:05 PM
  #116  
Stanford Chiu
Registered Member
iTrader: (1)
 
Stanford Chiu's Avatar
 
Join Date: Jun 2013
Posts: 103
Received 18 Likes on 13 Posts
@Calg37USMC I'm pretty sure I know you. How'd you blow the stock driveshaft? I'm TT'd and still holding up... Those are ridiculous NA numbers though, good ****
The following users liked this post:
Calg37USMC (02-13-2018)
Old 02-13-2018, 07:24 PM
  #117  
Calg37USMC
Premier Member

 
Calg37USMC's Avatar
 
Join Date: Jun 2017
Location: Seattle, Wa
Posts: 266
Received 83 Likes on 58 Posts
Originally Posted by Stanford Chiu
@Calg37USMC I'm pretty sure I know you. How'd you blow the stock driveshaft? I'm TT'd and still holding up... Those are ridiculous NA numbers though, good ****
Yes you do man! Same guy from the Mt. Baker cruise. And I have some questions for you on your “sensors” in your grill... I want in lol. My CSC just blew so after that. Oh and the DS blew with a combination of wet spots and me being stupid so I was spinning and I think it hooked when I hit a dry spot, u joint snapped.
Old 08-03-2020, 11:31 AM
  #118  
Saltman
Registered Member
iTrader: (3)
 
Saltman's Avatar
 
Join Date: Feb 2016
Posts: 182
Received 80 Likes on 29 Posts
Does anyone know if an aluminum driveshaft for the 7AT RWD sedan fits the 6MT sedan?
Old 08-03-2020, 11:42 AM
  #119  
Mattlorentzoe
Premier Member

iTrader: (4)
 
Mattlorentzoe's Avatar
 
Join Date: Jun 2015
Location: Gwinnett County, Georgia
Posts: 773
Received 156 Likes on 119 Posts
Originally Posted by Saltman
Does anyone know if an aluminum driveshaft for the 7AT RWD sedan fits the 6MT sedan?
6mt flange is 4 bolt
7at flange is 3 bolt
Flange can be swapped on the diff side Instead of worrying about the driveshaft side. So if you really want to make that driveshaft work, you can swap your flange on the diff
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
delfinparis
Audio, Video & Electronics
2
11-16-2015 02:26 PM
djdiskino
Private Classifieds
0
09-29-2015 07:18 PM
Allboutcali
Newbie Corner
1
09-26-2015 03:43 PM
dedmanchan
Audio, Video & Electronics
1
09-24-2015 11:25 PM



Quick Reply: Driveshaft Upgrade



All times are GMT -4. The time now is 09:04 AM.