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VT 304 Donor


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#1 _UC-308_

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Posted 20 September 2010 - 05:17 PM

Just wondering if anyone can advise me on a list of things I must take from a VT Commodore Donor car for the 304 conversion into a Torana. So far I've taken Engine, Trans, Computer & Loom and am about to sell the car off. So what else do I need?.... Do I need the Body Control Module?

#2 _Quagmire_

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Posted 21 September 2010 - 08:33 PM

yep you do need the bcm and colum/key

#3 76lxhatch

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Posted 21 September 2010 - 08:40 PM

If you can possibly help it, don't get rid of the donor car until you've finished! All sorts of minor bits and pieces that you've never thought of will be useful and it will save you a heap of money if you don't have to buy them.

It would be preferable to get a suitable PCM tune to disable the BCM security rather than using the whole thing but you may as well grab it as it won't be any good to someone else without reprogramming.

#4 _greenmachine215_

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Posted 22 September 2010 - 04:57 AM

i agree with fush n chups ^^^^^^

hold onto the car until you've finished.
I done that with a VQ Statesman i stripped for driveline, end up using alot of other bits and peices along the way, Also strip it for every clip and fastner nuts and bolts you may use down the track. they come in so handy

#5 _UC-308_

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Posted 22 September 2010 - 01:12 PM

Thanks all, but I'm really just after last minute things, the car is going, missus & I want it gone.....it's on E-bay now. I plan to get the PCM reprogrammed to delete the Anti thieft stuff, engine will be modified anyway so PCM will need work. Just grabbed the twin themo fuses & believe I will need the tail shaft for the yoke. Any other MUST have's?

#6 _dickiep_

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Posted 22 September 2010 - 01:32 PM

yeah im looking at the doing. whats the advantages of the vt 304 compared to the older 304's? ive heard they had more fruit than some of the other ones.

dumb question, whats a pcm?

#7 _Quagmire_

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Posted 22 September 2010 - 01:44 PM

as much of the wiring from the rear seat forward as you can get
um if it runs the external fuel pump grab that
if it's a manual grab all the pedals/pipes/hydricialic stuff
g/box crossmember
speedo cable
relays fuses fuel lines charchol canister
um there's a heap more i just would have forgotten

#8 _Quagmire_

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Posted 22 September 2010 - 01:46 PM

yeah im looking at the doing. whats the advantages of the vt 304 compared to the older 304's? ive heard they had more fruit than some of the other ones.

dumb question, whats a pcm?


pcm i think that's a fancy name for the computer module
vt's had the secunicial injection rollor cam and more power standard
oh and they are clearanced for a stroker

#9 _robslxhatch_

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Posted 22 September 2010 - 02:12 PM

off my vp donor i took, brake booster and master cylinder, motor, trans,harness, computer, fuel pump and wiring fuel lines from tank to motor, fuel line spacers, shifter and accelerator pedal

#10 yel327

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Posted 22 September 2010 - 02:36 PM


yeah im looking at the doing. whats the advantages of the vt 304 compared to the older 304's? ive heard they had more fruit than some of the other ones.

dumb question, whats a pcm?


pcm i think that's a fancy name for the computer module
vt's had the secunicial injection rollor cam and more power standard
oh and they are clearanced for a stroker


Yep on PCM.
Yep on sequential injection and roller cam. Last half of VSIII got this too remember. Don't forget that VT isn't the last evolution of the GMH V8, it is an "aside" so to speak. It all started (in production vehicles) in HT and finished in VSIII (VSIII ran well into VX, were even selling new alongside VXII and very early VU).
Yes VT engines are relieved for the stroker crank in the 350ci variety. But so are all VS and the last half of VR.

#11 _greenmachine215_

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Posted 22 September 2010 - 02:56 PM

Dickiep:
If your going the injected path and havnt purchased an engine yet, id suggest stay with vn-vs 5.0L block
Yeah the VT Blocks do come with a roller cam standard BUT.... they snap lifter retainers and break the retainer plates, which are no longer available new.
i replaced a full set of lifters on a mates vt engine which had basically smashed 5 of the 16 lifters.

If its roller cam your after you can still go this path with the old blocks, COME Racing i know do a retro fit roller lifter kit and cam package to suit.
other than the cam being a roller in the VT'S theres no a hell of a difference between them

And if your running standard ECU they unfortunately have a Big ugly AFM Sensor before the throttle body.

#12 _dickiep_

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Posted 22 September 2010 - 03:23 PM

Mr Green Ive found a vt clubbie 304 i was going to go look at. It seen like a good deal. For now I'm not looking to work the engine or rebuild it at this stage. Would just want to bolt and run. Do you think it will more trouble than it's worth? Would probably run injection

#13 _Quagmire_

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Posted 22 September 2010 - 05:40 PM

if it's auto then yeah it's not to much harder than a vn-s conversion and you can always go back to the vn-s loom if you need to
if it's manual (after all the crap me and gen 3 torrie learned) pffft i would just go get a vn-s

Dickiep:
If your going the injected path and havnt purchased an engine yet, id suggest stay with vn-vs 5.0L block
Yeah the VT Blocks do come with a roller cam standard BUT.... they snap lifter retainers and break the retainer plates, which are no longer available new.
i replaced a full set of lifters on a mates vt engine which had basically smashed 5 of the 16 lifters.

If its roller cam your after you can still go this path with the old blocks, COME Racing i know do a retro fit roller lifter kit and cam package to suit.
other than the cam being a roller in the VT'S theres no a hell of a difference between them

And if your running standard ECU they unfortunately have a Big ugly AFM Sensor before the throttle body.


can you elemate this amf sensor with a mafless tune like the gen3's

#14 76lxhatch

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Posted 22 September 2010 - 07:28 PM

dickiep they started calling them PCMs (Powertrain Control Modules) rather than ECMs (Engine Control Modules) when they started using them to control the electronic autos as well as the engines

A MAFless tune would be easiest done by running an earlier PCM which is set up for a MAP sensor. This would mean losing the sequential injection but there's no real gain from it anyway.

#15 _dickiep_

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Posted 22 September 2010 - 07:56 PM

I'm not sure what the engine was from the factory auto or manual I'll have to ask. I'd ideally want to run a manual in my car. I asked if it has the ecu and the bloke said no, so I guess that is the PCM. Sounds like a headache? What do you guys think?

#16 _UC-308_

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Posted 22 September 2010 - 08:12 PM

Thanks all, will answer a few...
Has internal fuel pump... so no good there, will run a Bosch 044 with new fuel lines.
It's an Auto so will source the crossmember & mount from Castle Auto's
Got the Canister.
VT boosters are plastic.... so no good there.
Shifter ... will use the standard Torana one (heard they do the job).
Speedo cable.... VT's don't have them (electronic)
Accelerator cable (heard I need to get one off a V6 & file the firewall hole round & use Torana Pedal)
Got the Air box.
Retaining the twin thermo's although will probably get AU's (much neater).

While all those in the know are looking on, Does the trans tunnel need modification for the Electronic Auto?

#17 _Quagmire_

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Posted 22 September 2010 - 08:34 PM

I'm not sure what the engine was from the factory auto or manual I'll have to ask. I'd ideally want to run a manual in my car. I asked if it has the ecu and the bloke said no, so I guess that is the PCM. Sounds like a headache? What do you guys think?



depends if it's got the engine loom or if you can get a vn loom/computer and manifold/throttle body easly
vn v8's are geting on and are getting pretty cheap
if it was me i'd just buy a whole car as the donor
but not everyone has a backyard

#18 _dickiep_

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Posted 22 September 2010 - 09:03 PM


I'm not sure what the engine was from the factory auto or manual I'll have to ask. I'd ideally want to run a manual in my car. I asked if it has the ecu and the bloke said no, so I guess that is the PCM. Sounds like a headache? What do you guys think?



depends if it's got the engine loom or if you can get a vn loom/computer and manifold/throttle body easly
vn v8's are geting on and are getting pretty cheap
if it was me i'd just buy a whole car as the donor
but not everyone has a backyard


The bloke is using the loom in the new engine build. So I need to source a new one. The engine is low kms and kinda cheap which why I'm thinking bout it. Sorry to steal your thread uc308

#19 _dickiep_

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Posted 22 September 2010 - 09:07 PM


I'm not sure what the engine was from the factory auto or manual I'll have to ask. I'd ideally want to run a manual in my car. I asked if it has the ecu and the bloke said no, so I guess that is the PCM. Sounds like a headache? What do you guys think?



depends if it's got the engine loom or if you can get a vn loom/computer and manifold/throttle body easly
vn v8's are geting on and are getting pretty cheap
if it was me i'd just buy a whole car as the donor
but not everyone has a backyard


The bloke is using the loom in the new engine build. So I need to source a new one. The engine is low kms and kinda cheap which why I'm thinking bout it. I don't have any room at home, I'll be leaving the engine at a mate place for a while! Sorry to steal your thread uc308

#20 _Quagmire_

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Posted 22 September 2010 - 09:42 PM

up to you but be aware new looms haven't been avilable for 5 years or so now
and the wreckers know it too
you could ask castle maine electrics if they do one
but judging by the price of repro looms i saw on a fraurd site they won't be cheap
and then you gotta get your computer

#21 _UC-308_

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Posted 22 September 2010 - 11:29 PM

No problem dickiep.... this site is all about knowledge sharing and that what's happening. I've picked up a couple of bits of info out of this, so am better off today than I was yesterday. cheers.

#22 _greenmachine215_

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Posted 23 September 2010 - 04:04 AM

UC308- Sorry bout the thread jacking mate. It seems to happen alot on this forum but we all learn from it i guess.

Dickie how cheap is cheap the fact theres no ecu or wiring that is whats gonna sting your ring coin wise, you can use an auto ECU and still run a manual box no problems.

id seriously look at hunting down a complete v8 commodore thats been stacked and do like UC 308's doing that way you've got every thing you will need to do the conversion.

#23 76lxhatch

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Posted 23 September 2010 - 06:59 AM

I'd ideally want to run a manual in my car.


The bloke is using the loom in the new engine build. So I need to source a new one.


That makes life simple - grab a VN/VP (or VR manual) ECM and loom. More people can tune them (and the result is just as good anyway), and you can run the MAP sensor instead of the MAF. This will work for any trans except electronic auto (VR onward).

#24 _dickiep_

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Posted 23 September 2010 - 08:34 AM

I'll talk to the bloke and work out a price. Under 1000. green i don't have room to wreck a commo otherwise I would. Hmmmm don't know what to do.

#25 _UC-308_

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Posted 23 September 2010 - 02:06 PM

For my conversion I was looking for VN - VP as I knew it was easier but the VT popped up at a good price and I thought once I've taken out what I need, the car itself would fetch better money than a VN. At this stage it looks like the Eng, Trans, Computer, Loom, and the other minor bits I've taken will owe me about 1K.

PS still wanting someone to answer if the Electronic Trans will hit the tunnel?




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