How do I convert a CV8 from manual to automatic
How do I convert a CV8 from manual to automatic
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Discussion

delmeekc

Original Poster:

1,205 posts

241 months

Saturday 30th January 2010
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As it says, is it possible and what does it cost and who can do it?

I have about 600hp.

crisisjez

9,209 posts

236 months

Saturday 30th January 2010
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You`d be better off buying an auto car and swapping engines, cheaper and quicker I`d say

Will a 4L60e take 600 ponies even with a smooth torque curve?

ringram

14,702 posts

279 months

Saturday 30th January 2010
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Yep, you need an auto wiring loom etc.
I dont think its too hard, take a head on over to ls1.com.au its a common change. I think there are DIY step by step builds on there.
You can also ru a 4l80e which will handle whatever.
Talk to Gareth about building a hefty 4l60e, he has all the bits to handle that power level. Bowler trans in the US build chunky ones.
The ECU is the same manual to auto, you just need to flash and auto tune in with your new wiring loom and trans etc.
Or you can just run a manual ECU and run a traditional trans that just runs on line pressure like the TH400 which will handle anything, or a powerglide even.. depends on what you want to do.


delmeekc

Original Poster:

1,205 posts

241 months

Saturday 30th January 2010
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already priced that but would rather keep my car (if I can) so am seeing if it's possible, is there a different stronger autobox out there. I have alot to transfer over as there are lots of mods outside the engine bay.

delmeekc

Original Poster:

1,205 posts

241 months

Saturday 30th January 2010
quotequote all
Rich, was typing when you posted, who can do it and what are options and prices, I won't diy it.

delmeekc

Original Poster:

1,205 posts

241 months

Saturday 30th January 2010
quotequote all
done some google, I want a TCI 6 x speed and wire in my own paddle shift buttons. Think I need the TCI controller too.

Drew SS

2,683 posts

215 months

Saturday 30th January 2010
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delmeekc said:
Rich, was typing when you posted, who can do it and what are options and prices, I won't diy it.


diy it ask wallsjay i think he was lookin at changing his to manual if u have the time and space go for it

ringram

14,702 posts

279 months

Saturday 30th January 2010
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Id stick with the 4l60e if you can. Why do you want to change anyway?

You should be able to pick up all the parts from Oz to ship over. You probably need a trans brace/mount, wiring loom, maybe a different propshaft, or at least altered to suit.

Id try some Oz crowd for the parts and talk to someone locally here to fit it all. If you have a monaro you already have the TCM so why buy another one!? The ECU also does the TCM functions. All you have to do is flash an auto tune in.

If you stick with an OEM trans things will fit properly with OEM parts and speedo, shifts etc will all work nice. Probably cheaper too!

http://www.ls1.com.au/forum/showthread.php?t=99151


Drew SS

2,683 posts

215 months

Sunday 31st January 2010
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diff ratio will have to be changed as well wont it

motomk

2,188 posts

275 months

Sunday 31st January 2010
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ringram said:
Id stick with the 4l60e if you can. Why do you want to change anyway?

You should be able to pick up all the parts from Oz to ship over. You probably need a trans brace/mount, wiring loom, maybe a different propshaft, or at least altered to suit.

Id try some Oz crowd for the parts and talk to someone locally here to fit it all. If you have a monaro you already have the TCM so why buy another one!? The ECU also does the TCM functions. All you have to do is flash an auto tune in.

If you stick with an OEM trans things will fit properly with OEM parts and speedo, shifts etc will all work nice. Probably cheaper too!

www.ls1.com.au/forum/showthread.php?t=99151



A friend of mine has done a few over here in Oz, I will try and ask him.
It is probably all the little trim items that will be hardest to get. Might have to swap over some of the pedals too. Maybe study US parts suppliers as they put pictures up and raid the US GTO for bits or I can help with the very hard stuff to get over there.


Edited by motomk on Tuesday 2nd February 10:26

delmeekc

Original Poster:

1,205 posts

241 months

Sunday 31st January 2010
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Rich, my biggest issue is in traffic and it virtually stops me driving it to work, I use a 600 scooter for work everyday and use my wifes car when I drive in. It's 5 miles of stationary traffic, moving 5mph max, I used the car a few times over the last few months and it's a nightmare and impossible. I want to use the car more than one a week and have been looking at a commuter car, add the cost of that, the extra insurance as I would keep the scooter incase I end up in central london again. I have a cost to swap all my parts over to an older auto, everything including brakes, suspension, diff, linkages etc, when you total it all up I'm better getting an auto box for mine. The TCI also has paddle shift and it's a 4L80E on there site. What does the torque converter lockup do exactly too. Might send them over an email and see what they say.

gsd2000

11,515 posts

214 months

Sunday 31st January 2010
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Theres currently a 4l60e on ebay ends tomorrow. Currently at £160 with 5.3 engine

delmeekc

Original Poster:

1,205 posts

241 months

Sunday 31st January 2010
quotequote all
Just had a look, from a 4x4 with the two output shafts, how do I contact Gareth?

delmeekc

Original Poster:

1,205 posts

241 months

Sunday 31st January 2010
quotequote all
Currently pinging emails all around the world for prices etc, I see some places offer what you said Rich with no electronics. Will see what comes back.

Drew SS

2,683 posts

215 months

Sunday 31st January 2010
quotequote all
delmeekc said:
Just had a look, from a 4x4 with the two output shafts, how do I contact Gareth?


it probably has a transfer case hanging of it does it...mel might have his mobie

delmeekc

Original Poster:

1,205 posts

241 months

Sunday 31st January 2010
quotequote all
big lump hangin out the side at the back, then yes, if that's what it is.

ringram

14,702 posts

279 months

Sunday 31st January 2010
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PM the guy above who was asking about auto to manual swap, thats the best idea. Find someone here who wants to swap, then you can both just swap parts over. Job done.
When you say its bad in traffic, is that because the clutch is heavy? Or just the fact you have to work the clutch at all?
The TCI kit wont fit unless you buy their controller and even then you will have to mess it around etc. Far better to do a plug and play swap IMO.
Either way will work but the 4l80e is wider as well so you may have to reshape the trans tunnel etc.

PM MyM8V8 he may even have a spare trans eventually. If motomk is kind enough to give you a kit list that would help.
As he says the inside console and associated parts are probably the worst part.

If it were me Id get a built trans from the US (Pontiac GTO) and the console/loom swap parts from Oz (Unless you find someone here who wants to swap)

You dont "need" a replacement Diff. One of the shops here probably has a 3.42 unless thats what you already have, in which case the auto will make 1st gear pretty munty. Whats stock auto ratio? 3.23 or something? Or 3.08? Diff ratio is personal preference, you can see how it goes with what you have and swap if its too mental.

delmeekc

Original Poster:

1,205 posts

241 months

Sunday 31st January 2010
quotequote all
Have to work the clutch for 45 minutes, constantly as can never let it right out, if you wait for a big gap 20 cars fill it instantly, the joys of a commute into london.

trickas

61 posts

222 months

Sunday 31st January 2010
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I may be interested in swapping my ute has a built box in it
send me an email at steve@yamaha-supermoto.co.uk

ringram

14,702 posts

279 months

Sunday 31st January 2010
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Does it not idle in 1st gear? Mine does with no jerking, so I can just let it crawl at 800rpm in first. The heavy clutch doesnt help. I have a centerforce at present. But if your car can idle in gear that makes a huge difference and is why I spent so much time on the tune around idle to get it as smooth as possible. Im just changing over injector values to get it even better and also work on a cold start issue. But with a cammed car that is the number 1 issue I have always had was making sure it will idle cleanly in first for heavy traffic. So its interesting to hear you have the same concern.