School me on LT230s - Defender Source
Defender Source  

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

Join the Defender Source Community Today

Thread Tools
Old January 17th, 2013, 12:55 PM
61rover's Avatar
Status: Offline
John Crouse
'93 NAS D110 (#8) / '61 Series II
Join Date: Feb 2007
Location: Denver, CO
Posts: 1,097
School me on LT230s

How do you tell if an LT230 is a 1.2, 1.4, 1.6 etc.

Assume the 1.4 is the best fit for 110 3.9 V8 with an R380.....

Reply With Quote
Old January 17th, 2013, 01:05 PM
Baldewin's Avatar
Status: Offline
Chris Baldewin
Bastard 90
Join Date: Aug 2006
Location: Republican Sanctuary of CA
Posts: 850
Look up the serial number on Ashcrofts site. Very bottom of link.

“Don't judge a man until you have walked a mile in his shoes”
Reply With Quote
Old January 18th, 2013, 08:14 AM
diesel_jim's Avatar
Status: Offline
Jamie Austin
1992 110 Td5 CSW & 1989 MB G-Wagen
Join Date: Oct 2005
Location: Wiltshire, UK
Posts: 1,348
Originally Posted by 61rover View Post
Assume the 1.4 is the best fit for 110 3.9 V8 with an R380.....

Depends on tyre size.

I have a 1.2 in my 110 (Td5, ECU & turbo upgrade to 190bhp) and it pulls it very nicely with 235/85s. If it put my 255's on (BFG MT) then it's like pulling away in 2nd instead of 1st and Steep hillstarts it pays to slip into low range.

But for highway driving, with the 235's and 1.2, its great. makes things a bit quieter.

Generally (but not always) the boxes were fitted thus:

2.5 NA diesels, 2.5 petrol 1.6:1

2.5 TD 1.4:1

200Tdi, 300Tdi, Td5, 3.5 V8 carb (110) 1.4:1

3.9 EFI "50th anniversary" and NAS 3.9/4.0 1.2:1

UK/euro V8 90 (3.5 carb) 1.2:1 (118 or 127bhp on a 1.2.... )

all 2.4/2.2 "puma" 90,110 and 130 1.2:1 (although they have the 6 speed 'box, with lower 1st and slightly higher 6th)
Reply With Quote
Old January 18th, 2013, 10:28 AM
Buckon37s's Avatar
Status: Offline
Re-Fendered 90
Join Date: Oct 2003
Location: Temecula, CA, USA
Posts: 3,387
Go here:

Play around with the numbers and find what works best for you. If you want to be really accurate, don't measure tire hight, measure the tire under the wheel, double that, and add the wheel. That will give you your true rolling radius.

If you are under powered, find out what your torque curve looks like and take that into consideration. It's an awesome tool that Ashcroft put together.
2009 King of the Hammers

BUCK Wild Racing
Driver: Me
Co-driver: Pat Quirk
Team 911

Rover Tracks
DJ Safety
West Coast Rovers
Reel Driveline

Made it further than half of the other guys, but the Hammers won.
Reply With Quote

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


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
Going back to school Emerson00 Misc. Chit-Chat 26 September 17th, 2008 04:22 PM
School Project mpearlmutter Misc. Chit-Chat 2 August 13th, 2008 07:34 PM
Factory sponsored school looking for driving instructors - Northern Vermont 2007 solihul Misc. Chit-Chat 0 March 11th, 2006 10:30 PM
aviation school flippedrover Misc. Chit-Chat 13 October 11th, 2005 03:08 PM
LR Driving School in Canada OCD90 Misc. Chit-Chat 8 October 5th, 2004 09:21 PM

All times are GMT -5. The time now is 04:42 PM.