6Ltr conversion

Post by **MUD000** » Sat Jan 19, 2008 7:14 am

question would you be better off using a 80 series auto & buy an adaptor
Or using the factory auto that comes with the 6ltr
It will be going in the 80 used for touring & towing
Cheers Dan

Post by **hdj105** » Sat Jan 19, 2008 8:05 am

MUD000 wrote:question would you be better off using a 80 series auto & buy an adaptor
Or using the factory auto that comes with the 6ltr
It will be going in the 80 used for touring & towing
Cheers Dan

Are we talking Gen 4 Chev conversion?

Although the Toyota auto's good and strong, my intial thought would be use the 4L65 so you get the complete package the std ECU can operate (and both can be easily tweaked to suit 80 series diff ratios etc) and adapt the OE t/case behind that.

Post by **badger** » Sat Jan 19, 2008 10:43 am

isnt the 6 litre fly by wire?

if so you would have to play around with a tps or kickdown cable off of the accelorator pedal to make the factory auto work, not impossible but a bit of messing around also you will be up for some coin to get a torque convertor that will like that sorta power

on the other hand how will the 4l65 handel the loads of 4wding (i know they are strong but its totally different loads) and can you manually lock there torque convertor for crawling down hills

Post by **MUD000** » Sat Jan 19, 2008 1:09 pm

I'm looking at a L76 6Ltr motor
Dont know if I should use factory 80 or 4L60E or a 4L80E auto
If I do this conversion I want to do it right & do it once
Like I said it will be used for touring & towing
I run 35's on the 80
Cheers Dan

Post by **jsttry** » Sat Jan 19, 2008 6:53 pm

4L60 isn't a strong auto. If you're going to use a GM auto use the 4L80, but can't see why the Toyota auto wouldn't work as apparently meant to be very strong.

Can you get something other than the L76? It was the ugly duckling and was only in one Commodore model before going to the L92.

Website · Post by **killalux** » Sun Jan 20, 2008 7:24 am

i would personaaly use the holden auto so that the factory computer controlls it, and you won't have drama's with matching speed sensors etc.

With the 80 series auto being electronic controlled, i think it would be a nightmare to match it all up and get it to change correctly. You would need to use the factory toyota trans computer and then connect it up to sensors on the Holden V8, and hope like hell they match (they prob won't)
Or you could convert the auto to a fully manual shift tiptronic style.

I would personally go with an LS1 or LS2, that doesn't have drive by wire, just to keep it more simple.

Post by **badger** » Sun Jan 20, 2008 8:38 am

not all of the 80 series autos are electronic
early 1hdt is kick down and so is all 1hz and 3f

the speed sendor on a 80 comes from the speedo so not hard to rig back to the 80 series box, prob easier than adapting in a commo speed sensor

Post by **hdj105** » Mon Jan 21, 2008 8:48 am

jsttry wrote:4L60 isn't a strong auto. If you're going to use a GM auto use the 4L80, but can't see why the Toyota auto wouldn't work as apparently meant to be very strong.

Can you get something other than the L76? It was the ugly duckling and was only in one Commodore model before going to the L92.

4L80 doesn't have as low a 1st gear, but should be stronger. They are also much dearer, a brand new 4L65 can be had for $1600 odd.

L76 was the 6L introduced in VZ in 2006, it's replacement the L98 is the same unit without the DOD hardware which is in the VE and some of the very last VZ utes. I don't think you'd have any problems and I certainly wouldn't call it the ugly duckling.

Post by **MUD000** » Mon Jan 21, 2008 4:24 pm

Whats the DOD hardware ???
Cheers Dan

Post by **tuf045** » Mon Jan 21, 2008 5:31 pm

dod is displacement on demand. Has things to do with the cam shaft lifters and so on. It is in the l76 that was in the vz commodore but holden never enabled it.

Post by **frp88** » Mon Jan 21, 2008 10:01 pm

why not go 1uz

Post by **MUD000** » Tue Jan 22, 2008 5:01 am

to small a motor for an 80
Cheers Dan

Post by **MUD000** » Sun Jan 27, 2008 11:02 am

So which auto would be the best for this conversion
4L60E or the 4L80E or is there something better ??
As if I do this conversion I want to do it properly the first time
Cheers Dan

Post by **Bartso** » Sun Jan 27, 2008 11:55 am

out of curiousity how much are the 6.0L to buy complete?

Post by **MUD000** » Sun Jan 27, 2008 12:05 pm

You can but a brand new 6ltr L76 for $4000 & all the bolt on items for another $3500-$4000 including Comp & loom AC PS Alternator Starter etc etc
Or You can buy an LS 2 HSV for about $6600 plus the bolt ons
I think this conversion would be a lot easer that the HDFTDE that I was looking at unless you bought a complete 79 series so you had all the bits & pieces needed as I have the 4.5ltr petrol at the moment
Cheers Dan

Post by **GRPABT1** » Sun Jan 27, 2008 1:32 pm

IF you don't mind the extra $$$ then the 4l60E could be had for the lower first gear and be beefed up by someone in the know (craigs automatics or the like) to handle heaps of power. They can do anything to these boxes, shift kits, reverse pattern, full manual etc etc. I'd price up the cost of a worked 4l60E over a 4L65E, 4L80E and the new 6L80E and see which suits your budget.

Post by **MUD000** » Sun Jan 27, 2008 6:24 pm

The auto I'm looking at is the 4L60E 6HZD auto
Any comments on these ???
Cheers Dan

Post by **hdj105** » Tue Jan 29, 2008 8:46 am

MUD000 wrote:The auto I'm looking at is the 4L60E 6HZD auto
Any comments on these ???
Cheers Dan

4 means 4 gears, L means fittd longitudinally (i.e. RWD), 60 the torque capacity and E meaning electronic.

Considering the 4L65E can be had new for ~$200 more than the 4L60E, and it has greater torque capacity (and fitted to HSV models with LS2 engine, and Crewman Cross 8's) I'd be going that direction.

http://holmart.com.au/online/category6_1.htm

4L80E is much larger, but only came to Aust. in the Suburban wagon, so not common at all.

Post by **ats4x4dotcom** » Tue Jan 29, 2008 9:00 am

l60e ok, Rod at wholesale auto's in bayswater than man on these, to trick them up, worth the money at the start, to make sure it lives, no matter which one you go with.

The cruiser auto is also ok, and Rod at wholesale automatics also the man to speak with re compatability on these engine/auto combo's.

We fitted l60e recently behind a 340kw ls1 into a 04 wrangler, with atlas T/case, with nissan diffs all round and 12" coil overs on 37" nitto mud grapplers.

Post by **MUD000** » Wed Jan 30, 2008 2:58 pm

It is the 4L65E auto I found out
Is there any other differance between the L76 & the LS2 ??
Is it worth the extra money found one for a $1000 more than an L76 ??
Cheers Dan

Post by **ats4x4dotcom** » Wed Jan 30, 2008 3:19 pm

MUD000 wrote:It is the 4L65E auto I found out
Is there any other differance between the L76 & the LS2 ??
Is it worth the extra money found one for a $1000 more than an L76 ??
Cheers Dan

For the extra 1k go the LS2.

Post by **hdj105** » Wed Jan 30, 2008 5:10 pm

MUD000 wrote: Is there any other differance between the L76 & the LS2 ??
Is it worth the extra money found one for a $1000 more than an L76 ??
Cheers Dan

LS2 is an "older school" go fast engine, unique to HSV here in Aust., as well as Corvette and 2 other "sports" models in the US.

The L76 uses newer (smarter?) designed head castings (similar to the LS7) and will out perform the LS2 with the LS2 cam installed and a tune.

Do some web research and see what you come up with. If you're going to leave it stock then the LS2 may be the go.

Post by **MUD000** » Wed Jan 30, 2008 5:57 pm

I'm not about to but a brand new motor & then pull it apart
The L76 was only around for 1 model then they went to the LS2
Was there a reason for this ????
270kw vrs 300kw
If the LS2 is a better motor I think I would go that way
Cheers Dan

Post by **ats4x4dotcom** » Wed Jan 30, 2008 7:57 pm

HSV use em for a reason ;-)

[though they soon going to 6.2]

Post by **hdj105** » Thu Jan 31, 2008 8:01 am

MUD000 wrote:I'm not about to but a brand new motor & then pull it apart
The L76 was only around for 1 model then they went to the LS2
Was there a reason for this ????
270kw vrs 300kw
If the LS2 is a better motor I think I would go that way
Cheers Dan

LS2 is exclusive to HSV in Oz, Holden do not use it! Apparently production has ceased (read future change to LS3 6.2L as ats suggested). It's 307kW in current VE trim.

L76 used by Holden in 2006 VZ models, and continues to be used in VE although it's called an L98 (without the DOD gear in it.) L76 was 260kW, L98 (with better exhaust in VE) is 270kW, although most claim it's a conservative figure.

If you can afford to go LS2 and don't mind the slight increase in fuel consumption go for it. Both will put a smile on your face!

Post by **Bartso** » Thu Feb 07, 2008 8:46 pm

anything happening with this???

Post by **MUD000** » Fri Feb 08, 2008 7:39 pm

Still looking into it
Lots of things going on at the moment
I have to finish building the house first
Then I'm free
Will probably going the LS2 & the 4L65E Auto
Cheers Dan

Post by **MUD000** » Sun Mar 09, 2008 7:57 am

Just found out I might have problems hooking up speedo & dash to the 6Ltrs ??
Also security is a problem as well
Anyone else had these problems ??
Looking at putting the LS2 in
Cheers Dan

Post by **MUD000** » Wed Mar 12, 2008 6:19 pm

Some more things I found out today
L76 isn't the best motor for the conversion as you cant do much with it & alot of problems getting the right plug & loom problems from what I've been told
The L76 is just a run out motor & was only available in the VZ
LS2 you can run the gen 3 computer
Will differantly be getting a LS2 when I'm doing it
This is just some of things I found out today
How are you guys who are doing your 6ltr conversion going ??
Cheers Dan

Website · Post by **killalux** » Wed Mar 12, 2008 7:55 pm

Hey, with the LS2 if you use the gen3 ECU, security can be programmed out, or I am working on a module that will be able to be wired in that disarms the security. I have wired a few of them up now, with no probs. If you want I can modify your harness at a good price so it will be very simple to connect. (just connect ign, battery, and crank and it will go)

In the 80 series the alt needs to be relocated and the a/c pump bracket modified slightly. (marks adapter do a kit to do this for about $950, includes engine mounts)

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