Datatek
Well-Known Member
As hippo say's budget for a stronger gearbox before you up the power. The auto box is close to it's torque limit as standard, even a power box takes it way over. You would need to replace the ZF4HP22e with a ZF4HP24e at the very least. Unless of course you have a manual box.
Chrisfrain2007
Active Member
380 nm of torque alledgely
more than that..ie i have a lt77 in my old 4 door..that runs 3.3 6 pot diesel on 2 bar pressure,with lpg etc..its done 50000 miles on this box..
however i have taken out 6 lt95/85's in my 2 door!(but that runs 400hp)the clutch is the problem,but one can easily upgrade that at the cost of a hard clutch pedal..
before tuning...BUY AND INSTALL an egt gauge,or it will all end up in tears..
however i have taken out 6 lt95/85's in my 2 door!(but that runs 400hp)the clutch is the problem,but one can easily upgrade that at the cost of a hard clutch pedal..
before tuning...BUY AND INSTALL an egt gauge,or it will all end up in tears..
Who mentioned a L322 box?
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Ade B
New Member
What I can find says this box was used up to 2004 in the 4.6. What's involved in the upgrade?
Interesting - the 4.6 P38A ceased production in 2001/2002 didn't it?
Think it was used by the V8 disco after P38 stopped production. Think the bloke is a dreamer Ant. Bit like a Tornado pilot asking what mods are needed to fit some EJ2000s.
Datatek
Well-Known Member
The P38 finished in 2002 otheriwise you are correct. Do a search I have posted on this a few times.
Ade B
New Member
Think it was used by the V8 disco after P38 stopped production. Think the bloke is a dreamer Ant. Bit like a Tornado pilot asking what mods are needed to fit some EJ2000s.
Excuse me?! "I'm a dreamer"? Well I don't appreciate that, and if I typed my initial reaction to your comments I'd probably get the topic closed.
I'm looking for information for future ideas. It's called planning ahead.
I'm not going to justify myself, and have no need to. I'm merely looking for some advice and info from people who may have gone down these roads before.
1. Considering a P38 DSE
2. Wanting more than the meagre power they seem to have
3. Finding out what the shortcomings are
4. Finding out how to address these issues
Being insulted by mouthy forum members wasn't my intended step 5
Answers:Excuse me?! "I'm a dreamer"? Well I don't appreciate that, and if I typed my initial reaction to your comments I'd probably get the topic closed.
I'm looking for information for future ideas. It's called planning ahead.
I'm not going to justify myself, and have no need to. I'm merely looking for some advice and info from people who may have gone down these roads before.
1. Considering a P38 DSE
2. Wanting more than the meagre power they seem to have
3. Finding out what the shortcomings are
4. Finding out how to address these issues
Being insulted by mouthy forum members wasn't my intended step 5
1. Good Choice - I have one too
2. Don't get a Oil Burning P38 then...up the engine spec and chew up gearboxes - the L322 'box isn't a straight swap, and with the multitude of electronics to contend with, would be difficult for the DIY'er to approach.
3. Money
4. Buy a different vehicle....
TBH, my DSE is quite spritly when poked, when I bought it a reciept was in the folder of reciepts from Janspeed, indicated a remapping - although I have not had this confirmed, but it will go like a scalded whippet when you mash the loud pedal....
The M51 for the Range Rover was retuned to provide low end grunt and not top end speed, as in a capable 4x4 it is all about the low end - as they say when off roading - as slow as possible and as fast as necessary - which is rarely above 15-20mph and more like 5-10mph.
If you want speed or power, buy a BMW, Merc or Audi....
This why the Cayennes, BMW X ranges, Merc M Classes, Audi Q series vehicles are not great at the dirty stuff, they are aimed at road users who want a 4x4 to use on the roads....not a true 4x4 with a 60+ year history of offroading.
If you want poke and also the mpg benefit of a diesel but still a 4x4 with proven offroad ability - get an lpg V8.
Its not about speed, its about ability - which the Range Rover (and the other Land Rover models - Evoque aside I guess) has in spades.
Datatek
Well-Known Member
The ZF4HP24 is a little longer than the 22 but this is accomodated by a shorter spacer between the auto box and a transfer box. You would have to swap the 4,6 bell housing for the diesel bell housing but as far as I can ascertain this is not a problem, also as far as I can tell there are no electronic implications. I don't have the cash to buy a
ZF4HP24 or I'd be looking to try it. The box must be from a P38 though.
ZF4HP24 or I'd be looking to try it. The box must be from a P38 though.
Exactly D, but he did ask if a L322 'box would fit....
Datatek
Well-Known Member
I know, but I thought the L322 used either the GM box or the ZF5HP24? I assumed he did not know the difference.
