T5 to T56..worth it???

[JEZIMP]

thinking of dropping a T56 into my VT II S....i got a mate who says when i do it he can hook me up pretty good....would it b a good idea??

[kego]

t56 are the shit hands down but it will be a big job but sooooooooooooooooo worth it lol

[Reaper]

6 cyl or V8? T56 is a ton stronger than the t5 that is for sure.

Reaper

[Simonn]

his got a s pack vs so it would be a 6.

[KiWi1]

realiabilty yes, but performance wise no. also you would need to change tailshaft (maybe) your diff gears, and some wiring adjusting, if the OE doesnt link up with the T56

[Reaper]

his got a s pack vs so it would be a 6.

VS Utes had no V8's and thus V8 was an option for the "s" model so it could be either.

Reaper

[JEZIMP]

thankz alot guys
i know it would b a big job and a fair bit fo to and change...but all in all if its worth it i would do it....so if i will have a low change of braking it..(knowing its only hooked up to a V6) and the fact of having a 6 spd i will change it ova......but from the performance side of things....and the diff ratios....will she b any diff on take off and in general acceleration

[KiWi1]

Not really, better pedal feel and shift, but without diff gears to suit, its like driving to perth from melb via sydney :P

Simon

[JEZIMP]

haha oh ok fair enough thankz
well then ill do my reaserch and find the best suit ratios and diff that best suits it...if you know anything thats good for a T56 on a v6, i would love to hear it

[danja]

You'd be wanting a diff ratio change too I'd imagine, the T56 has quite low ratios - eg 1st gear is 2.66:1.

[JEZIMP]

yeh looks like its the way to go

[Vt_vic]

3.9's are a t56 would be fun.did the t56 come out in a lot of 5ltrs i though it was for 6speed ls1's??

[danja]

You'd want at least 3.9, probably 4.11 even. I have a T56 + 3.7's, and if I had a V6 behind it, it would be rather dull.

[STEALTHY™]

The 6 speeds never came out on a 5L. They were the box of choice on the VR/S Stroker motor HSVs, aswell as the LS1.

I don't know the electrical side of things, but mechanical, all you will need is a bellhousing, and maybe different input shaft (not sure on V6, as mine is a 5L). Tailshaft will be the same if your car is already manual.


Also have T56 with 3.73s, was advised not to have anything less than 3.9s, 4.11s would be best. So next time the diff goes in for a freshen up, i'll be changing mine.

[JEZIMP]

so will it really b worth me doing it in the long run, if i get the right diff and so on....in the

end its still behind a V6. compared to the T5 in it now...would the T56 with bellhousing and different diff b better?

[STEALTHY™]

Of course it will be better. I not sure its completely needed tho....

[stocky]

The 6 speeds never came out on a 5L. They were the box of choice on the VR/S Stroker motor HSVs, aswell as the LS1.

except for the group A although it was a different box

[STEALTHY™]

except for the group A although it was a different box

The group A isn't a 5L

[NOGEN 3]

Any floor mods needed for a T56/VN/P 5 litre at all?? What about input shaft mods(or just a T56 clutch plate?)?? And a Dellow housings needed?
T5 feels like it's made of glass as it is...

[STEALTHY™]

Any floor mods needed for a T56/VN/P 5 litre at all?? What about input shaft mods(or just a T56 clutch plate?)?? And a Dellow housings needed?

Mine went in without hassle.
I bought a kit, so it already had the correct bellhousing plate and input shaft that i needed for the (4.9L)

[NOGEN 3]

Mine went in without hassle.
I bought a kit, so it already had the correct bellhousing plate and input shaft that i needed for the (4.9L)

Cheers 4 that...

[JEZIMP]

Of course it will be better. I not sure its completely needed tho....

thats cool then, i was jsut surious and if it does happen it wont b for a while down the track