The Rover V8

[shadowcaster]

OK after a lot of thinking I have decided to use a Rover V8 in the Roadster. For me it makes econimic sence, I have a Discovery 3.9 V8 Auto running on LPG which I adore not least because of the smooth power of the V8. It' an engine I understand and have always loved since driving P6'es and SD1 years ago. However she is getting a bit tired and really needs an overhaul, new cam and big ends ect. So the plan is now to get another 3.9 V8 complete when funds allow and after giving it a check over put it in the Disco, then overhaul the one I take out. I may even use an auto box in the roadster as I'm not that intrested in out and out performance, just something that is fun to drive around the coast roads of Cornwall.

So whats the verdict am I mad/insane, should I think of adding additional bracing to the engine bay I think TR7 will have to go and be replaced by removable bracing.

[MightyMouth]

To each his own but personally I think you are crazy. This type of car does not benefit from Big engine. You will lose agility and gain little if anything in speed and also add extra work for yourself. If you aren't interested in all out performance then find good running sierra as you need a donor regardless and use the engine that comes with. You could even get an auto if that suits you.

[tr7v8]

Originally Posted by MightyMouth

To each his own but personally I think you are crazy. This type of car does not benefit from Big engine. You will lose agility and gain little if anything in speed and also add extra work for yourself. If you aren't interested in all out performance then find good running sierra as you need a donor regardless and use the engine that comes with. You could even get an auto if that suits you.

Why do lose agility? The RV8 weighs the same as a Pinto which a lot areusing on here.

[flyerncle]

They put them in Seven's and Westie's and the auto may save you a few prob's. Do it....

[MightyMouth]

Originally Posted by tr7v8

Why do lose agility? The RV8 weighs the same as a Pinto which a lot areusing on here.

I wasn't aware of that.

[flyerncle]

And if I remember correctly and Mr G will correct me if not,the roadster was able to take said engine and frame was up to the stress.
Flak awaited.....

Did I say that?

No, the chassis should be ok for the Rover engine.

The bit about the pinto and the Rover V8 being the same weight is a bit of an urban myth, probably the fault of the internet.

The rover block weighs a little less than a pinto engine, which means that the dressed V8 is 25kg or so heavier than the pinto. It's still a light engine for it's power.

The V8 gets lighter and the pinto gets heavier everytime I hear this yarn, to the point that someone told me that the Rover engine was "about two thirds of the weight of a pinto" yes it's got a lighter block but a huge crankshaft, 8 pistons and 8 con rods do weigh something!

Cheers

Chris

[NigelC]

Hi

I think the V8 is a great idea.

I am going down the track of using a Rover V8 as well. It was suggested to me that perhaps I should use 50x25x1.6 for the top and bottom rails as this will add significant strength to the chassis, and give a little more height to fit the V8 into. In New Zealand we have to go through a low volume vehicle certification process, and the certifiers are generally very helpful and provide little gems like this.

Go for the V8

Cheers
Nigel

Might pay to up the gauge of the lower rails as well perhaps to 14swg?

[shadowcaster]

I was thinking it would be a good idea to add a bit of extra strength in those areas.