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I've already discussed tuning my 2.5 20 V (for the road) with a couple of the lads in here - only looking for T5ish power to be going on with, though I see no reason why 100 bhp/litre (240 ish bhp) shouldn't be possible for very little (relative) expense - no screamers; it has to transport the ladies :) Cheers, T TC - Any news on the rear bumpers? |
While I'm not trying to suggest that Austen's undertaking is not worthy (quite the opposite - it's very impressive), you could get most of the way to achieving the same effect for a fraction of the cost if you're not concerned about creating an engineering masterpiece.
For example, I strongly suspect that a set of three DCOE / DHLA 45s fitted to a B6304 along with a full exhaust system (including a suitable extractor manifold) and a set of cams would see you most of the way to 300bhp, depending on how happy the bottom end will be spinning to 7.5k...perhaps not very! What I'm trying to say is that there's a relatively moderate price jump between "production" and "fast road", while the jump between "fast road" and "race" is pretty big...especially when turbocharging will make you more power than "race" quite possibly for less cost than "fast road". Horses for courses, of course...Austen wanted a road-going race engine, and he's doing an admirable job of it. cheers James |
I'm willing to go 'Fast road' but I'd sooner do it with throttle bodies than carb's, been there had the T shirt, don't fancy all the arsing around in cold weather with side draught's that don't want to let the car tick over, there's lot's to be said for modern fuel injection. I'd like all the driveability of the car as it is now but with a hell of a lot more horsepower, I've started buying parts to make a decent exhaust system, I have a source for a 3litre engine etc, just need to get some better cams and fueling sorted.
If I could get around 270-280bhp I'd be more than happy. |
I'm all in favour of throttle bodies if you're in a position to make the electronics work. I tend to assume that most people aren't...no offence!
I've had much better fortune with my sidedrafts than most people seem to...they start perfectly in all weathers, and I used the car pretty much every day for 18 months without batting an eyelid. To be fair, in something as heavy as a 960, I'd be going turbo every time (either 2.5 or 2.8 bottom end...don't trust the 2.9 with boost!). A T3/T4 hybrid on a T6 motor would give a very "streetable" 350bhp...less if you so wish. You'd need a custom exhaust manifold (which you'd need for the N/A too...) and a few bits of tinkering with things like the throttle body...but I rather suspect that TurboTuner could be made to work with the 6-pot application of Motronic quite easily, which makes the engine management side of things a walk in the park. The N/A 6-pot in something lighter makes a lot of sense to me, but I'd want more torque to match the increased weight. cheers James |
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As for the 960, I got a quote for a new custom built s/s exhaust recently £540 - and still need to get a manifold!! I don't see 270/80 bhp being a problem. As for the torque, James, that's determined by good cam profiling, as I'm sure you know. Haven't looked into it yet, but I imagine a good first port of call is Piper; always very helpful in the old days for custom work. Damned if I can decide what to do with my 960 (I was thinking turbo originally), so watching your progress avidly TC :) Regarding the 320 bhp 'screamer' I doubt very much whether such an engine is going to be particularly happy in regular road use. Cheers, T |
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Tuning always comes at an expense
Tuning a Nasp is always going to be more expensive than getting a turbo motor to similar power levels as the motor is doing all the work pumping the air On a turbo motor its all done for you by the blower so easy to get good power I wanted a screamer race motor with progressive torque to suit the car I was putting it in. (Westfield) I am a dealer for Jenvey products if anyone is interested in a set up and can do good discounts PM me for prices and specs, realisticly your way over £1k for the inlet system alone. As for Cams call Cat Cams for prices if your serious. |
Just to add I have a couple of dry sump pans left if anyone is interested?
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Really looking forward to seeing and hereing your car :thumbs_up: Russ |
Quite a bit, I think Russ.
My comments were not aimed to be negative towards Austen's build. It's a very exciting project, and I'll be very interested to see what it'll make on a dyno. Just be aware that if that's what you want (and there's nothing wrong with that), there's a cost attached. cheers James |
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