RE: Driven: Caterham R300 supercharged
Discussion
Sivraj said:
Friends got a Westfield with 2.0 Duratec fitted and we're looking for way to up the power,
Where's the best place to start looking for advice on fitting turbo/ superchargers?
Not sure which way to go at the minute!...
To get any power out of a NatAsp engine you need a decently high compression ratio which needs lowering if you go forced induction.Where's the best place to start looking for advice on fitting turbo/ superchargers?
Not sure which way to go at the minute!...
You also DON'T want any (or at least, very minumal) valve overlap or the blower will simply blow all your fuel through the cylinder into the exhaust.
Think of it like this... in a NatAsp you want to engineer it to suck air/fuel in as well as it can. With force induction, your engine "accepts" a positive charge.
Sivraj said:
Friends got a Westfield with 2.0 Duratec fitted and we're looking for way to up the power,
Where's the best place to start looking for advice on fitting turbo/ superchargers?
Not sure which way to go at the minute!...
The Yanks have been doing blower kits for ages. Quite popular on the Focus SVT (we got it as the ST170 Where's the best place to start looking for advice on fitting turbo/ superchargers?
Not sure which way to go at the minute!...
).I believe there are some people in the Morris Minor world who also supercharge the Ford unit in certain conversions they offer.
Plumbing in a centrifugal blower isn't too difficult, finding one is the costly bit.
Watchman said:
Sivraj said:
Friends got a Westfield with 2.0 Duratec fitted and we're looking for way to up the power,
Where's the best place to start looking for advice on fitting turbo/ superchargers?
Not sure which way to go at the minute!...
To get any power out of a NatAsp engine you need a decently high compression ratio which needs lowering if you go forced induction.Where's the best place to start looking for advice on fitting turbo/ superchargers?
Not sure which way to go at the minute!...
You also DON'T want any (or at least, very minumal) valve overlap or the blower will simply blow all your fuel through the cylinder into the exhaust.
Think of it like this... in a NatAsp you want to engineer it to suck air/fuel in as well as it can. With force induction, your engine "accepts" a positive charge.
Cock Womble 7 said:
thinfourth2 said:
Cock Womble 7 said:
These "superchargers" - you can just bolt them on, plumb them in and you're away, right?
Not if you have a k-seriesAn alternative would be to pilfer a turbo manifold from a Rover 75 1.8T and fab up your own turbo setup.
300bhp/ton said:
Principle is still the same and the K series is proven to handle boost. But you might need to beef the internals up a bit and drop the CR.
An alternative would be to pilfer a turbo manifold from a Rover 75 1.8T and fab up your own turbo setup.
Never heard of a turboed 7An alternative would be to pilfer a turbo manifold from a Rover 75 1.8T and fab up your own turbo setup.
I think i would go down the route of the traditional VVC head with throttle bodies
And if it is the 1.6 stay with it as its a lovely little revvy engine
The K-series could of been designed for a caterham 7
thinfourth2 said:
Never heard of a turboed 7
I think i would go down the route of the traditional VVC head with throttle bodies
And if it is the 1.6 stay with it as its a lovely little revvy engine
The K-series could of been designed for a caterham 7
You are probably right. I love the way a VVC or any K series revs. Lovely little motors really. I think there are a few turbo'd seven alikes about and Elises.I think i would go down the route of the traditional VVC head with throttle bodies
And if it is the 1.6 stay with it as its a lovely little revvy engine
The K-series could of been designed for a caterham 7
Big power is possible at a cost of lots of ££££ but I suspect a simple setup could yield 180-220hp sort of level with a fat torque curve and just as many revs. Obviously with a turbo throttle response though, but if you keep the static CR up and don't run too much boost you'll get just as much instant shove as you always do with an n/a and then just extra surge as the turbo kicks in.
Sivraj said:
Friends got a Westfield with 2.0 Duratec fitted and we're looking for way to up the power,
Where's the best place to start looking for advice on fitting turbo/ superchargers?
Not sure which way to go at the minute!...
I'm running a s/c on a 2.0 dura in my Westfield, it's running standard internals and revs to about 6500 - Where's the best place to start looking for advice on fitting turbo/ superchargers?
Not sure which way to go at the minute!...
We mapped it pretty rich to be kind to the engine and it's done about a year of regular trackdays without any problems.
If you contact Luke at PlaysKool he should be able to sort you out with the conversion as they did the original development with me.
300bhp/ton said:
Fish said:
My CSR260 is quite sensible noise wise at 80.... Now I wonder what we could get with a supercharger on that!
What sort of CR does it run? You might need to drop it down if you want to run any meaningful boost. Also lary cam might cause a bit of boost bleed if there's enough overlap.My Duratec is a 2.3l with 12:1 and yep lumpy cams, maybe not the best candidate for supercharging then.. Does go well though!
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