Overdrive for 110 with 2.8 TGV - Page 3 - Defender Source
Defender Source  

Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions


Reply
 
Thread Tools
  #41  
Old May 17th, 2008, 05:15 PM
RyanS's Avatar
RyanS
Status: Offline
Ryan
'93 NAS 110
Member
 
Join Date: Jan 2004
Location: Escondido, CA
Posts: 426
GFT MT-82:
1st 5.443
2nd 2.839
3rd 1.721
4th 1.223
5th 1.000
6th 0.740

R380:
1st 3.692
2nd 2.132
3rd 1.397
4th 1.000
5th 0.770

So if you compare 3rd-6th on the MT-82 vs 2nd-5th on the R380, they are about the same. So if your transfer case, axles, and tire size are the same, then the performance in these gears will be about the same.

For the short term, I may go to the 1.22 TC as well. If I have to downshift on grades anyway, I may as well have a higher overall ratio so I can go faster in the lower gears.
Reply With Quote
Sponsored Links
Advertisement
 
  #42  
Old May 17th, 2008, 11:26 PM
JimC's Avatar
JimC
Status: Offline
Jim Cheney
NAS 110 #145
Site Team
 
Join Date: Sep 2003
Location: Stuttgart, Germany
Posts: 7,154
Registry
For what its worth, I run a 1.2 in my 90 behind a 300tdi which is a blessed with a bit less power and torque than you 2.8 mongers. The ratios suit me fine. Stock tires, stock gears, all that.
__________________
Jim Cheney

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #43  
Old May 18th, 2008, 01:04 AM
RyanS's Avatar
RyanS
Status: Offline
Ryan
'93 NAS 110
Member
 
Join Date: Jan 2004
Location: Escondido, CA
Posts: 426
Jim - You're probably just a lot more patient than we are
Reply With Quote
Sponsored Links
Advertisement
 
  #44  
Old May 18th, 2008, 02:03 PM
Santiago
Status: Offline
Santiago Gigola
Member
 
Join Date: Sep 2006
Location: Mendoza, Argentina
Posts: 134
Ryan,
Thanks for putting the gear ratios clearly for easy comparison.
It looks like I am going to go the same way but buying the Ashcroft 1.2 transfer gear kit and trying.
if I am not pleased I will go back, install the original 1.4 gears and sell the 1.22 gear kit.
I will buy it from Ashcroft and have it shipped to Argentina unless I can find the kit in North America (I am in Canada now and will be back soon).
Does anybody know were I can purchase the Ashcroft 1.2 Discovery transfer gear kit in the US or Canada?
After all it is what most people in this forum and the english forum recommended me to do right from the beginning.

Thanks to everybody for the help and great learing experience from this post.

Ryan, I will let you know when I complete the 1.2 transfer gear installation.

Cheers,
SG

Follow-up Post:

Quote:
Originally Posted by Red90
I gave the ratios above...

It does have a HIGHER 6th.... It also uses the 1.22:1 t. case instead of the 1.41... This combines to give a higher geared top gear.

2006 Defender...
0.77:1 Fifth Gear, 1.41:1 transfer case, 3.54:1 axle ratio = 3.84:1 overall reduction

2007 Defender
0.74:1 6th gear, 1.21:1 t. case, 3.54:1 axle = 3.17:1 overall

3.84 / 3.17 = 1.21 so 21% higher top gear PLUS a 45% lower 1st gear low range.....
Following Red 90's example and if my numbers are correct then my 2000 Defender 110 Td5 (now 2.8) should end up with the following gearing in fifth:

0.77:1 Fifth Gear, 1.21:1 transfer case, 3.54:1 axle ratio = 3.29:1 overall reduction

3.29 / 3.17 = 1.037 so only about 4% higher top gear compared to a 2008 Defender.
Reply With Quote
  #45  
Old May 18th, 2008, 07:37 PM
RyanS's Avatar
RyanS
Status: Offline
Ryan
'93 NAS 110
Member
 
Join Date: Jan 2004
Location: Escondido, CA
Posts: 426
Santiago - Since you're in NA, you might check with Rob Dassler to see if he can set you up with the 1.22 gears. He does a lot of LT230 work.

Rob Dassler
Southwest Rovers LLC
505-872-7818 (shop)

Otherwise, I've never had a problem ordering anything from Ashcroft. That includes several transfer cases, and a ZF.

BTW, I'm curious why you went from the TD5 to the 2.8?

Ryan
Reply With Quote
  #46  
Old May 18th, 2008, 08:02 PM
Santiago
Status: Offline
Santiago Gigola
Member
 
Join Date: Sep 2006
Location: Mendoza, Argentina
Posts: 134
Thanks for the data Ryan.
I will probably buy it in Ashcroft, just wanna be sure I cannot get it cheaper in the States or Canada (I would save on shipping).

I did not do the engine swap, I bought it as it is. It was done by a mechanical engineer who works for BMW in Buenos Aires. It is apparently the only 2.8 Defender in Argentina and although it was built in 2000 it only has 70,000kms. The Td5 was destroyed by the original owner and it sat in a garagae for 4 years until the 2.8 was adapted ny the engineer. Apparently the job was not as easy as adapting a 2.8 to a 300Tdi.

Cheers,
Santiago
Reply With Quote
  #47  
Old June 17th, 2008, 07:51 PM
Santiago
Status: Offline
Santiago Gigola
Member
 
Join Date: Sep 2006
Location: Mendoza, Argentina
Posts: 134
Ryan,

Based on the advice received I've got the Disco tranfer kit gear in my hands (just arrived).
Once I install it and test it I will let you know about performance.

Regards,
Santiago
Reply With Quote
  #48  
Old June 18th, 2008, 02:28 AM
RyanS's Avatar
RyanS
Status: Offline
Ryan
'93 NAS 110
Member
 
Join Date: Jan 2004
Location: Escondido, CA
Posts: 426
Santiago - Thanks for the update. I'll look forward to hearing what you think. I've got my truck torn apart right now, and I've been debating on whether I should throw in the 1.2 TC. I hope it works for you.

Ryan
Reply With Quote
  #49  
Old July 5th, 2008, 05:45 PM
Santiago
Status: Offline
Santiago Gigola
Member
 
Join Date: Sep 2006
Location: Mendoza, Argentina
Posts: 134
OK Ryan, I've got it installed:


EXCELLENT, I love it (Disco 1.2 gear kit)!

Much more relaxed driving around town, less rpm and LESS NOISE while cruising on the highway, only two days of using it after changing gears but I am ahappy man.
I will drive 2,000kms next week along our flat flat pampas and ell you later but it seems I will enjoy the drive (and the music!) more than before....

Cheers,
Santiago

PS: only problem is that I've just noticed the central diff lock does not work after the mechanic changed the gears. Any ideas what he may have forgotten to do? I hope it is something simple....

Follow-up Post:

Forgot to mention, my mechanic charged 250U$ and changed the gears in 1 and 1/4 days.
I still have the 1.4 gears just in case but it feels like I will not go back!!!!

Cheers.
Reply With Quote
  #50  
Old July 5th, 2008, 09:21 PM
Overlander's Avatar
Overlander
Status: Online
mark kellgren
in between D's in an 04 D2
Member
 
Join Date: Mar 2006
Location: Charlotte, NC
Posts: 6,531
Registry
That's is very good news! I'm quite interested as well. Keep us posted after a little time has passed to see what the long term verdict is.
Reply With Quote
  #51  
Old July 6th, 2008, 04:37 AM
RyanS's Avatar
RyanS
Status: Offline
Ryan
'93 NAS 110
Member
 
Join Date: Jan 2004
Location: Escondido, CA
Posts: 426
Santiago - Great news! I hope it works out for you in the long run. I've got my seatbox area all apart now so I'll probably go ahead and swap in the 1.2 TC I have - especially after hearing about your experience.

Re. you diff lock, if it's just the light not coming on, he might've forgotten to re-connect the wiring. If it's actually not locking, then it could be several things. I'd start with confirming the electrical first, then look at the linkage to ensure it's assembled and adjusted properly.

Ryan
Reply With Quote
  #52  
Old July 6th, 2008, 12:12 PM
Santiago
Status: Offline
Santiago Gigola
Member
 
Join Date: Sep 2006
Location: Mendoza, Argentina
Posts: 134
Mark/Ryan,

I will keep you updated on the long term results. By early August I should have done about 3,000kms on the highway so I will have more comments to share.


Ryan,

Whenever I head to the mountains I will let you know about my impressions of the 1.2 gears while driving uphill in the Andes.

I checked and the central diff lock works properly but the light does not work. I took a look in the transfer box area and it seems all the electrical cables in that area are plugged in, nothing seems to be loose.
Any idea what it may be? Maybe just a bad/loose connection? Anybody can explain (with words, or even better with a picture) which is the central diff lock light cable so can I move it around a bit to see if I can fix it myself?


Cheers,
Santiago
Reply With Quote
  #53  
Old July 6th, 2008, 03:49 PM
RyanS's Avatar
RyanS
Status: Offline
Ryan
'93 NAS 110
Member
 
Join Date: Jan 2004
Location: Escondido, CA
Posts: 426
The diff lock switch is difficult to see unless you're looking down at the TC. If you remove the cover plate in the seat box area between the seats (below the Tuffy box if you have one), you can see down into this area. The switch has two spade terminals, and there are two separate wires that connect to it. Mine's apart now so I'll take some pics. I've also got a spare TC lying around so I'll take a pic of it as well since it's easier to see. Will try to post up the pics later this evening.
Reply With Quote
  #54  
Old July 7th, 2008, 04:09 AM
RyanS's Avatar
RyanS
Status: Offline
Ryan
'93 NAS 110
Member
 
Join Date: Jan 2004
Location: Escondido, CA
Posts: 426
Santiago - Here are some pics of the diff lock switch. Still kind of hard to see when installed in the truck, but hopefully this gives you an idea where look.

Ryan
Attached Thumbnails
Click image for larger version

Name:	080706 TC diff lock 001.jpg
Views:	123
Size:	40.6 KB
ID:	14233   Click image for larger version

Name:	080706 TC diff lock 002.jpg
Views:	114
Size:	45.2 KB
ID:	14234  

Click image for larger version

Name:	080706 TC diff lock 003.jpg
Views:	135
Size:	51.7 KB
ID:	14235   Click image for larger version

Name:	080706 TC diff lock 004.jpg
Views:	118
Size:	64.3 KB
ID:	14236  

Reply With Quote
  #55  
Old July 7th, 2008, 10:48 AM
Santiago
Status: Offline
Santiago Gigola
Member
 
Join Date: Sep 2006
Location: Mendoza, Argentina
Posts: 134
Ryan,

100% sure I did not check that. I will remove my cubby box and check. I bet they are not properly connected.

Your pictures are great help!
I appreciate that!

Cheers,
Santiago
Reply With Quote
  #56  
Old July 27th, 2008, 10:07 PM
Santiago
Status: Offline
Santiago Gigola
Member
 
Join Date: Sep 2006
Location: Mendoza, Argentina
Posts: 134
Hi,
I am just back after covering 3,000kilometres along absolutely flat ground and I love it.
The improvemet in the quality of te ride is really significant.
Two reasons:

a) cruise speed has gone up a bit because the engine is much more relaxed
b) it is much more relaxed to drive along the highway now, a constant 120kms/h is fine now

Our 1,000/1,100kms 1 day long journeys are much more enjoyable now!!!!

Still have not tried it in the mountains yet but it looks like I willl not go back to the 1.41 gears at all!!!!

I finalle got my new central lock swith. Should I be able to change it myself from under the Defender or do I need to take of the cover from inside the vehicle?

Overlander,
Just read your interesting thread about the nosie barrier stuff (Luxury Liner Plus?), I will probably give it a try!!


Cheers,
Santiago
Reply With Quote
  #57  
Old July 28th, 2008, 09:12 PM
RyanS's Avatar
RyanS
Status: Offline
Ryan
'93 NAS 110
Member
 
Join Date: Jan 2004
Location: Escondido, CA
Posts: 426
Santiago - Take it to the mountains! I need to hear whether it can climb anything

Regarding the diff lock switch, I just checked mine and it would be really difficult to do it underneath. You would be working totally by feel, if you can even reach up there. If you remove your cubby box and cover plate, you can actually see the switch. It's still close quarters, but at least you can see what you're working on.
Reply With Quote
  #58  
Old July 30th, 2008, 03:12 PM
Santiago
Status: Offline
Santiago Gigola
Member
 
Join Date: Sep 2006
Location: Mendoza, Argentina
Posts: 134
Maybe next weekend I will go for the snow up there!

I will let you know.

Cheers,
Santiago
Reply With Quote
  #59  
Old August 25th, 2008, 07:51 AM
Santiago
Status: Offline
Santiago Gigola
Member
 
Join Date: Sep 2006
Location: Mendoza, Argentina
Posts: 134
Smile

Hy Ryan,

I finally took it to the mountains yesterday (close to Aconcagua). My Defender 110 was completely unladen and it climbed fine and pulled very well. I probably used 5th gear a bit less than before when going uphill but the 2.8s torque still pulls it very well.

It actually worked much better uphill than I expected and when heading downhill:


As was mentioned to me before: after changing transfer gears the vehicle is more pleasant to drive, much more relaxed, cruises at slightly (but noticeable) higher speeds and I DO NOT LOOK back. It feels like I will never install the original Defender transfer gears again.

Of course it depends on driving styles, personal preferences, etc but since you can always go back to the original gears I would certainly give it try.

Cheers,
Santiago
Reply With Quote
  #60  
Old August 28th, 2008, 03:36 AM
RyanS's Avatar
RyanS
Status: Offline
Ryan
'93 NAS 110
Member
 
Join Date: Jan 2004
Location: Escondido, CA
Posts: 426
Santiago - Thanks for the update!

I'm definitely going to give the 1.2 TC a shot. I'll probably tweak the 2.8 with the 1.4 first, and then change over to the 1.2 so I can check out the difference. I run fairly heavy on trips plus I have the ZF and 33's so a lot working against me. But your experience at least provides hope.

As an aside, Aconcagua was the last big mountain I climbed. Not for any particular reason, but just the way life goes. I did enjoy my time in South America back then.

Ryan
Reply With Quote
Reply

Lower Navigation
Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions

Tags
110

Thread Tools

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
1993 NAS Defender 110 2.8 TGV For Sale + Extras - Expedition Ready pcarey For Sale - Vehicles 57 April 7th, 2009 12:00 PM
HS 2.8 TGV Alternator/Tach ?? nikojo Defender Technical Discussions 2 March 29th, 2009 09:52 PM
2.8 TGV Timing belt DesertRat Defender Technical Discussions 2 February 16th, 2009 07:12 AM
Air filter for 2.8 HS TGV engine Santiago Defender Technical Discussions 10 September 20th, 2008 02:24 AM
The 2.8 TGV and 300TDI to GM adapters are in stock OBW_Canada The Vendors Loft 5 December 14th, 2006 11:12 PM


All times are GMT -5. The time now is 10:03 PM.


Copyright