rover v8 cheapest route to na power
Discussion
I've recently bought a tvr wedge.
These come fitted with a bog standard 3.5 rover sd1 lump, which is in questionable condition in my car.
I don't want to change away from a rv8 as I want to keep the original gearbox and engine mounts etc. Nor do I want to turbo or supercharge it.
As I see it I have the choice of tuning the 3.5 or upgrading to a 3.9 or 4.6 either of which I can pick up cheaply. Fuel will likely be either by megasquirt or Weber 500, what are peoples thoughts on the 2 engines? I lean towards the 4.6 for the extra capacity but feel I may need to spend more on it to get right as I think there is an liner issue on these engines and they apparently tend to be a bit lazy.
These come fitted with a bog standard 3.5 rover sd1 lump, which is in questionable condition in my car.
I don't want to change away from a rv8 as I want to keep the original gearbox and engine mounts etc. Nor do I want to turbo or supercharge it.
As I see it I have the choice of tuning the 3.5 or upgrading to a 3.9 or 4.6 either of which I can pick up cheaply. Fuel will likely be either by megasquirt or Weber 500, what are peoples thoughts on the 2 engines? I lean towards the 4.6 for the extra capacity but feel I may need to spend more on it to get right as I think there is an liner issue on these engines and they apparently tend to be a bit lazy.
Hi yes it has indeed got that system, but its only worth keeping if I stay with the 3.5 in standard trim which I probably won't be doing, its going to be fairly restrictive otherwise and I have no real concerns junking it and tidying the loom (its a tvr so probably starting again with loom) and going over to either msquirt or carb, I normally favour fi over carbs but on this I am tempted with a big old carb.
I think we may be at cross purposes, when I say tuning I don't mean a tune up, I'm talking about extracting more power from the engine than it produced when it was new in good condition naturally I will see an improvement on the current engine by getting to run well but they aren't exactly lively when fresh so I'd like to tune it. This pretty much precludes using the flapper system as if I want to go beyond a mild cam and a bit of gas flowing on the heads it will become restrictive and will probably want more time and money spending on it than its worth anyway.
I'm expecting to do a full rebuild on any engine, my concern on the 4.6 is the liners, I understand its a big issue and if any build needs to factor in £1200 of top hat liners regardless of condition as a preventative measure I'd really want to know it was worth the extra money over the (I believe) more reliable smaller blocks.
I'm expecting to do a full rebuild on any engine, my concern on the 4.6 is the liners, I understand its a big issue and if any build needs to factor in £1200 of top hat liners regardless of condition as a preventative measure I'd really want to know it was worth the extra money over the (I believe) more reliable smaller blocks.
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