V8 transplant....

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V8 transplant....

Postby shoveitnz » 09 Aug 2006, 10:19

This is one for chevettev8 and petrolhead...

I'm all excited about getting another chevette when i get back to blighty in sept. I'm quite interested in fitting a v8 but some questions..

1. when fitting the rover v8 which sump should used (off which model rover).
2. does the baulkhead have to be modified?
3. Which gerabox...LT77 ? does the standard manual chevette tunnel cope without modifying.
NZ desperately needs more immigration and fresh blood. Our eyes are getting far too close together!

http://retrorides.proboards86.com/index ... 155&page=1

http://www.vauxhallviva.com/vivaforum/v ... hp?t=10258
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Postby UpNorth » 09 Aug 2006, 12:09

I'm in a similar position myself. Unfortunately any of the few decent V8 cars I've seen the owners won't part with 'em!

I've done a bit of homework & spoken to a couple of people who've worked on them so have some answers. I believe that any v8 from an SD1 is the motor to go for - although I'm not sure if the sump had anything to do with it.

The bulkhead does need chopping about a bit - but not a lot. Also for access it's tidier to chop out the slam panel between the headlight housings.

Fortunately the Chevette transmission tunnel is very large so apart from welding brackets you should be okay. The LT77 'box is from the SD1 but I don't see any reason why a R380 from a Discovery can't be used - this is a popular conversion for MGBV8s.

I assume you know you'll have to change the back axle (a hard driven 1.8 ohc Cavalier engine will destroy it).

I don't know if you want a roadburner or not but here's a few things to bear in mind before you start spending money (& before I start slagging the motor off I should say that if anyone's got a decent converted car I'd be interested in it for sensible money):

The Rover V8 is a very old design engine (Noah used it on his ark) with poor power figures - a normal V8 SD1 only had 150bhp and when shoved into an MGBGT only managed about 135bhp due to poor manifolding! This is probably what you'd get in a Chevette - a Vauxhall Red Top will beat that. Even the Vitesses only managed 190bhp.

There's any number of better engines & it's a very, very expensive engine to tune for decent bhp (assuming that's what you want), see here http://www.jeengineering.co.uk/ Of course, if you really want a V8 why not think about a Ford 'small block' 302 - about 5.0ltrs but it's both narrower & shorter.
Anyone have a 6R4 for sale? Unfortunately I've only got £1K spare but I could throw in a few eggs to sweeten the deal!
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Postby shoveitnz » 09 Aug 2006, 23:21

Great- someone in the same boat to help.. :D

I used to have a chevette 2.3l here in NZ (see photo) with piazza running gear/brakes, supra gbox and it was all very nice to drive. It wasn't super powerful but it had loads of lovely of torque making it really fun in the twistys. Very heavy weight upfront though-pushed abit.

Thats what I fancy out of a V8 (and the soundtrack...) but I could easily swing the other way and go rotary after having owned an early rx7 which had no torque but was such a sweet reving smooth little thing.

I'll see what comes first - after making a new shed/hammering/grinding area where I live...

The 380 gbox from a disco- where is the transfer box on these? I've only owned an old series 2 landie and am not familiar with more modern rovers.

Another idea on the space thing is to remove water pump and pully etc then fit one of these new dang fangled electric things.... make it all cleaner and shorter at front then no have to touch slam panel ?

alex
NZ desperately needs more immigration and fresh blood. Our eyes are getting far too close together!

http://retrorides.proboards86.com/index ... 155&page=1

http://www.vauxhallviva.com/vivaforum/v ... hp?t=10258
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Postby shoveitnz » 09 Aug 2006, 23:42

whoops- forgot photos...

Image

Image
NZ desperately needs more immigration and fresh blood. Our eyes are getting far too close together!

http://retrorides.proboards86.com/index ... 155&page=1

http://www.vauxhallviva.com/vivaforum/v ... hp?t=10258
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Postby UpNorth » 10 Aug 2006, 11:17

I dunno about the Disco box - but as it's a very common 5 speed replacement for MGBV8s so it's gotta be simple enough. I must confess here to knowing little about 4 wheel drive systems. I'd suggest having a quick look at an MG owners website.

As for the slam panel I think it's more for the radiator to be mounted forward like it is in the HSs - there's a hell of a lot of wasted space in the front of a Chevette. I've got a photo somewhere on my computer of the engine bay with a V8 - I'll try to find it. Although hopefully one of the V8 owners will be able to post a photo (my photo must be one of their cars).

The only thing I feel a little guilty about is ravaging a mint Chevette or Kadett :oops: , but there's little point in working on a rotten car with a floor & inner arches like a sieve.
Anyone have a 6R4 for sale? Unfortunately I've only got £1K spare but I could throw in a few eggs to sweeten the deal!
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Postby RegR » 10 Aug 2006, 13:39

not a really good view, :lol: but it does fit :twisted:
http://www.opelmotorsport.com/galleri/k ... Frode.html
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Postby burns » 10 Aug 2006, 14:22

This thread has quite a good picture of a V8 engine bay.
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Postby shoveitnz » 10 Aug 2006, 22:44

RegR- those photos make me all squidgy inside- feelings I havn't felt before...
I want that green car- very very nice.

I wonder if its very fast?..

I have a freind here in NZ who has twin turboed a 4L lexus V8 in an old toymota sillycar. But in a little kaddet ! wow.

Burns- i've seen those photos already but thanks. Its a very clean install.
looking at it i dont think losing the water pump off the front will do much as the dizzy is quite far forwards and something needs to drive the Alt.
Weight wise its gotta be lighter then the 2.3 L boat anchor I had.

alex
NZ desperately needs more immigration and fresh blood. Our eyes are getting far too close together!

http://retrorides.proboards86.com/index ... 155&page=1

http://www.vauxhallviva.com/vivaforum/v ... hp?t=10258
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Postby RegR » 11 Aug 2006, 10:49

Motorvolum: 5.7 l V8 + twinturbo intercooler
Motoreffekt: ca. 800 hk/BHP

@shoveitnz :twisted: think it would really fly,if it keeps traction.
Old Opels never die,they only go a little bit faster.
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Postby Tortron » 12 Aug 2006, 00:19

such a sweet reving smooth little thing

potentially the funniest thing i have ever heard.

iv seen a rotary wagon around here bofore, wouldnt imagine it would be to hard to build
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Postby jayen4 » 12 Aug 2006, 16:43

Hmmm.......Has anyone thought of using the old Daimler 2.5 V8,with auto box ?? They are a cracking engine,when looked after and can easily be tuned to produce 200 hp ! :) They sound great,thanks to the Hemi heads and are surprisingly quick.
I had a Daimler 250 V8,years ago (Mk2 Jag shape) and that would fly,even in a heavy car like that !! I used to thrash RS2000's with that baby !! :shock: :)
Anyhow,Russ Carpenter is your man for Daimler V8's ..... :)
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Postby shoveitnz » 13 Aug 2006, 10:32

aren't the daimler 250 V8's an alloy motor? I'm not sure...

I've always thought the Stag V8 sounds nice.

And what about bimmer ones...anyone thought about them?.
NZ desperately needs more immigration and fresh blood. Our eyes are getting far too close together!

http://retrorides.proboards86.com/index ... 155&page=1

http://www.vauxhallviva.com/vivaforum/v ... hp?t=10258
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Postby jayen4 » 13 Aug 2006, 13:09

The Daimler V8's had alloy heads,manifold,carbs,water pump and sump. The block was cast iron,but I don't think that they were a particularly heavy engine !! :)
The stag engines are very fragile and the BMW engine are too modern,as in--- too much electronics..... not easy to transplant.
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Postby shoveitnz » 13 Aug 2006, 21:24

but what great motors those bimmer ones...i wonder if anyones making up inlet manifolds to suit carbs for them?
NZ desperately needs more immigration and fresh blood. Our eyes are getting far too close together!

http://retrorides.proboards86.com/index ... 155&page=1

http://www.vauxhallviva.com/vivaforum/v ... hp?t=10258
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Postby V8-CHEVETTE » 03 Oct 2006, 19:40

Hi all,
I thought i would show you some pictures of my V8 project.

Let me know what you think and if anyones got any questions or needs any advice just ask.

Image
Image
Image
Image
Image
I'll finish it one day!
http://www.hotrodgazette.com/
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Postby Herbie_Flowers » 03 Oct 2006, 21:16

excellent choice of car colour mate 8)
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Postby shuvit-tim » 03 Oct 2006, 22:25

looks awesome - but point of query - with cutting about bits of crossmember and bulkhead - what stops it ending up in your lap in an accident?
when all else fails, rivets, cable ties and bodge tape will see you through

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Postby V8-CHEVETTE » 04 Oct 2006, 06:07

looks awesome - but point of query - with cutting about bits of crossmember and bulkhead - what stops it ending up in your lap in an accident?


The cross member has not been altered.
The bulkhead has been reinforced with a box section frame welded into the floor and sills, plus the roll cage has a dash bar adding more strength to the bulkhead.
There is also a twin rail box section cross member running the width of the car that mounts the rover lt77 gear box giving more strength than the standard Chevette floor ever did
I'll finish it one day!
http://www.hotrodgazette.com/
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Postby shuvit-tim » 04 Oct 2006, 18:15

well that answers that question... carry on my good man! :lol:
when all else fails, rivets, cable ties and bodge tape will see you through

Tim
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Postby V8-CHEVETTE » 04 Oct 2006, 18:36

hoping to have it on the road sometime next year but i did say the last year. :roll:
I'll finish it one day!
http://www.hotrodgazette.com/
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Postby UpNorth » 06 Oct 2006, 18:49

Are you the bloke who has the silver one?
Anyone have a 6R4 for sale? Unfortunately I've only got £1K spare but I could throw in a few eggs to sweeten the deal!
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Postby V8-CHEVETTE » 06 Oct 2006, 19:12

Are you the bloke who has the silver one?

No, only got the one
I'll finish it one day!
http://www.hotrodgazette.com/
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