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barbel jim

Member Since: 12 Dec 2012
Location: Northants
Posts: 1413

diesel_jim wrote:
More refinement: yes, engine doesn't rev as much for given road speeds, so it's quieter

Extra heat? how? engine working harder? nothing that i've noticed

I'm sure someone can put this more elequent than I , but I'll try my best. By fitting a 1.2 transfer box you increase the gearing by roughly 15 per cent. This decreases RPM, but will increase torque on the drivetrain. In theory your engine runs slower, but has an increased torque loading. Therefore although running slower works harder.
I love my 90 as is, but want to use it more as an everyday vehicle. This then will involve traveling longer as a family. I would like to cruise a bit faster, with the pick up I have in reserve currently. The logical choice was the transfer box upgrade, coupled with other performance mods ie bigger inter cooler, retune etc. I plan on keeping the td5 for years, so want it to be reliable. The weak point in a td5 engine is the oil cooling, hence the need for regular oil changes and genuine filters. The other common problem is the temperature of the exhaust gases. By changing the transfer box and increasing BHP I will in turn increase this temperature.
I want to improve the 90 , not turn it into an unreliable racer. I want it to be reliable not stressed to the max and blowing up every year. As this mod is nothing new I was just keen to hear of others experiences. They will vary, I know !!!

Thanks jim

12th Feb 2013 12:13am

dhopable

Member Since: 31 Dec 2012
Location: Peterborough
Posts: 47

2007 Defender 90 Puma 2.4 HT Tonga Green

my boss has a 130 and its a 55 plate td5, hes had the disco gears in it since pretty much new and its fine...?

Its done 188k now and is still going strong!!

And trust me, it doesnt have an easy life!!

Click image to enlarge

Hope this helps your decision?!

Cheers
Doug

12th Feb 2013 7:54pm

barbel jim

Member Since: 12 Dec 2012
Location: Northants
Posts: 1413

Taken the plunge, booked in at Ashcrofts - It'll be an expensive mistake if I don't like it

Taking my box to them and wait while they swop the gears £375 +VAT. As the gears are £275 +vat thought it was well worth the extra for there expertise and a warranty

15th Feb 2013 5:40pm

Welshsurferdude

Member Since: 23 Feb 2012
Location: Newport
Posts: 2379

Mistake or not.

I highly recommend ashcroft, they have good reputation

Took my 110 there for a recon gearbox last year, all done in a day with 12months warrentry. 2008 Santorini Black 110 XS USW (Sold)

2015 Discovery 4.5 Black pack Firenze red XS

2008 Corris Grey 110 XS USW (sold)

2011 Santorini Black 110 XS USW (Sold)

15th Feb 2013 5:59pm

dnorrishill

Member Since: 15 Jul 2011
Location: Hampshire
Posts: 613

2014 Defender 90 Puma 2.2 XS CSW Aintree Green

barbel jim wrote:
Taken the plunge, booked in at Ashcrofts - It'll be an expensive mistake if I don't like it Taking my box to them and wait while they swop the gears £375 +VAT. As the gears are £275 +vat thought it was well worth the extra for there expertise and a warranty

Stupid question but is the transfer case still in place, i.e. they are replacing the gears in your truck while you wait?

15th Feb 2013 7:06pm

Welshsurferdude

Member Since: 23 Feb 2012
Location: Newport
Posts: 2379

No they take the t box out and replace the gears in it. Then refit

2008 Santorini Black 110 XS USW (Sold)

2015 Discovery 4.5 Black pack Firenze red XS

2008 Corris Grey 110 XS USW (sold)

2011 Santorini Black 110 XS USW (Sold)

15th Feb 2013 7:10pm

diesel_jim

Member Since: 13 Oct 2008
Location: hiding
Posts: 6074

You'll love it!

I've just come in from an evenings laning (did about 110 miles around Wilts), and giving it the beans back home, the 110 was flying! it really makes it a nicer drive with the 1.2

16th Feb 2013 12:25am

barbel jim

Member Since: 12 Dec 2012
Location: Northants
Posts: 1413

[quote="dnorrishill"]

barbel jim wrote:
Taken the plunge, booked in at Ashcrofts - It'll be an expensive mistake if I don't like it Taking my box to them and wait while they swop the gears £375 +VAT. As the gears are £275 +vat thought it was well worth the extra for there expertise and a warranty

Stupid question but is the transfer case still in place, i.e. they are replacing the gears in your truck while you wait?[/quote

No I'm taking the transfer box out myself and will refit. They do just the gears. They will do the whole job for you for £720. You take it to one of two fitting centres, who take out the box send it to Ashcrofts for the gears and refit. Not bad but takes all day. Doing it my way I can save time and money, and piece of mind.

16th Feb 2013 12:48am

barbel jim

Member Since: 12 Dec 2012
Location: Northants
Posts: 1413

[quote="diesel_jim"]You'll love it!

I've just come in from an evenings laning (did about 110 miles around Wilts), and giving it the beans back home, the 110 was flying! it really makes it a nicer drive with the 1.2[/quote

Lets hope so

then off to see Gary at Alive

16th Feb 2013 12:51am

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