Finally it's official, i'm adding another 4 cyclinders

Joined: 16 Feb 2005 Location: brisvagas

Got the isuzu sold for a good fair price and now the build starts for my little wombat.

I've opted for a stroked rover, 4.4L with probably a megasquirt system, and coilpacks, ZF (HP24?) auto. - as i couldn't engineer a 5.7L, and thought i would keep it all rover instead of a 5L dunnydore donk and adaptors, etc -

the isuzu will come out in 3 or so weeks for my mechanic to start dummying up the fit, then hopefully another 4-6 weeks she'll be running.

Any tips/pointers/things to consider when doing all this would be greatly appreciated,

cheers

Joined: 25 Oct 2003 Location: Melbourne Australia

No tips but I look forward to watching the build up.

Joined: 10 May 2007 Location: Brisbane

Joined: 16 Jun 2007 Location: New Zealand

A ZF 22 upgraded to 24 or one of those new compushift units?

Joined: 16 Jun 2007 Location: New Zealand

Will a P76 crank fit in a 4.0/4.6 block, how do the journals compare?

Joined: 17 Sep 2004 Location: Melbourne

chimpboy wrote:

No tips but I look forward to watching the build up.

x2 a good write up on the issue's you have with the megasquirt would be awesome

Joined: 06 Nov 2003 Location: cowtown W.A.

JUst put a 4.6 & auto in my 130 was a bit of a hassle but not to
bad, took 2 months longer than 1st thought but its all good...
& I love it Laughing

was a 2000 td5 extra cab

Jeff

Joined: 10 Feb 2005 Location: Gold Coast QLD

jbell wrote:

JUst put a 4.6 & auto in my 130 was a bit of a hassle but not to
bad, took 2 months longer than 1st thought but its all good...
& I love it Laughing

was a 2000 td5 extra cab

Jeff

Bloody hell mate

Must be an awesome unit now Laughing

Great to see some pics

Camo

Joined: 19 Feb 2003 Location: Perth, WA

Sounds good Sam - I'm sure you will be happy with the power Twisted Evil

Joined: 20 Jan 2007 Location: New Zealand

When it's done we'll organise a race with Bush65's rangie. Laughing

Joined: 01 Feb 2006 Location: Brisbane

G'day sam sorry i havent been in touch i'll have the pics up shortly why the 4.4? either way I'm sure it will be worth it if you need any help or info on the conversion give us a shout and good choice with running coil packs i've had mine submersed and it just keeps going

Joined: 16 Feb 2005 Location: brisvagas

hey Mr. Hall,

going the 4.4 as (apparently) it'll be better on juice, more ponies then a 4.6, and hopefully as it will be a freshly built i will be very reliable for years to come. could of gone a 3.9, 4.6 or P76 for a lot cheaper, but decided to go this way for something a little different.....anyways we'll see how she turns out. It'll be interesting to compare it to your red bus at the end of the day, to see of the extra bucks are warranted or not???

Joined: 16 Feb 2005 Location: brisvagas

anyone got any suggestions if there is a specific alternator (highest output) and power steering pump that i should aim at using?

cheers

Joined: 16 Jun 2007 Location: New Zealand

there was a thread on D90 source I was reading the other day about an upgraded ZF pump,was linked from LR4x4 IIRC, will try to find it later.
The alternator will depend on which front end you use on the motor, V belt or serpentine, but it would want to be 120A, I havent found the part # yet but I will be using a 120a to suit the serp on my 4.6

Joined: 20 Sep 2005

Go serpentine: RR 140Ahm alternator, good oilpump, better PAS pump. there are front covers with/ without dizzi.m

Joined: 16 Feb 2005 Location: brisvagas

cheers, yeah it will be a serp belt

Joined: 16 Feb 2005 Location: brisvagas

was thinking of getting maxi drive xfer gears, well that idea is redundant now, anyone else in australia make them for the LT? i know mr automotive are thinking of taking over maxi's gears but have not decided yet.

Joined: 15 Jan 2004 Location: gold coast

have you searched around maxidrives retailers... there may still be some out there????

cheers, Serg

Joined: 16 Feb 2005 Location: brisvagas

checked a few, haven't done a full ring around yet

Joined: 16 Feb 2005 Location: brisvagas

well the wombat goes in next week to loose the 4BD1.

decided to make a few temp changes to cut a few bob, as my employment circumstances will be changing in a few weeks and gotta keep a tighter wallet.

changes -
- no coil packs (just yet)
- just going to run a simple holley fuel injection system for now, because its free, will update the whole injection system, pump etc when i can afford to go do everything in one hit.
- going a mild cam

Question - are roller rockers worth the money - my mechanic tells me for the rovers you don't get much change from $1000!! whereas for chev's etc they are only $500. i can get standard rockers for free, i know there are other mobs who make them, but i've been told for the money you either go rollers or save the coin and standard?

i'd appreciate any opinions and experience?

cheers.

Joined: 16 Jun 2007 Location: New Zealand

depends on the cam and springs you use. A high lift cam with stiff springs then yes you should have them.

Joined: 16 Feb 2005 Location: brisvagas

not sure on the lift of the cam, but my mechanic normally puts in dual springs - pretty stiff.

Joined: 26 Oct 2005 Location: Perth

Quote:

Will a P76 crank fit in a 4.0/4.6 block, how do the journals compare?

p76 has larger main journals. You need to line bore the case/main caps and backdrill the flywheel from the crank.

Joined: 22 Sep 2004 Location: Kings Park, NSW

Awesome news dude, look forward to following this one. Make sure you get lots of pics, everyone loves pics!!

Best of luck, hope it goes smoothly.

Rick.

Joined: 16 Feb 2005 Location: brisvagas

bigbad,

lift on the cam is .45?

worth using stiff dual springs and rollers? or save myself a grand or so and other steel rockers and standard springs?

by the way looks like MR automotive will be taking on the maxi Xfer gears!!

Joined: 16 Jun 2007 Location: New Zealand

If it was a ford I would say unnecessary for that lift, although it does reduce isideways loads on the valve and less wear. However I am not a Rover expert so wouldnt like to say, though a suggestion here is that it wouldnt be necessary http://www.v8forum.co.uk/forum/viewtopic.php?t=2279&highlight=roller+rockers

Joined: 16 Feb 2005 Location: brisvagas

cheers bigbad, i think i'll run standard springs to start off then, plus it wont be a 'high' revving motor....well at least not constantly.

Joined: 16 Feb 2005 Location: brisvagas

Small update.

auto is fitted up - selector sits just beside the handbrake, engine mounts done - sits about 2" or so further back then a standard county 3.5, cams ready, waiting on the crank...

ok so it looks like i'll be losing a small amount of torque and capacity as the 4.6 crank (using this to make the serpintine belt easier, otherwise would use a P76 crank) has a smaller stroke 3.43"? compared to 3.5" then the P76 crank.

will have to get the pics off ma phone and up shortly...

and looks like i'll probably run some 49% maxi Xfer gears

Joined: 01 Feb 2006 Location: Brisbane

Hey same if you are going to run the 50% low range gears I hope you dont want to be doing any highspeed events. I run the 30% and top speed in 4th is around 40-50k/hr

Joined: 16 Feb 2005 Location: brisvagas

hey ben, as much as i'd love to comp it one day, i probably won't as don't want to kill it. by the way 40-50k's i'd be swapping to high range before then anyways Twisted Evil

your probably running 4.11's in your fender

the gearing will around the 46:1 with the 49% as i'm only running stock 3.54's CWP's, but then again there is probably a good chance when i have horsies to pay with they will die a sudden death and i'll have to look at 4.11's or a toyo cent conversion in which case i could swap back to 30% if needed