gatt710
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| posted on 29/5/13 at 10:52 AM |
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locost engine dilemma
Hi guys,
I'm building a locost 7 and I've reached the stage to choose which engine to fit in my chassis. My main preferences are either a BEC, some
fireblade or so, or a VR6 engine out of a VW. I just love the sound and performance of those engines. What do you suggest? The only issue with the VR6
is that I need a RWD gearbox for it and I don't know which is best to use.
Would appreciate to have any suggestions on how to reduce emissions in order to have a cheaper registration fee and road tax.
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Peteff
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| posted on 29/5/13 at 11:36 AM |
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If you use a bike engine you will need a reverse gear option as well. A 1 litre engine will be cheaper to tax. Unless you go for a new registration
your tax bracket will be already set.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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James
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| posted on 29/5/13 at 11:45 AM |
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VR6 engine is really tall (bear in mind it's barely a 'V' - it'd be possible but not sure it's massively practical to
fit under the bonnet!
There are companies that do a bell-housing for the 4-cyl turbo VW engines and I'd imagine they're compatible as pretty much everything VW
is compatible!
BEC has a lot of advantages but not everyone wants the noise/hectic revving of that.
You need to think about what you're mostly going to use the car for. I mostly bimble about in mine and commute to work in it- so a 4-pot car
engine is most suitable. If you're tracking every weekend I'd want a BEC.
Cheers,
James
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"The fight is won or lost far away from witnesses, behind the lines, in the gym and out there on the road, long before I dance under those lights."
- Muhammad Ali
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gatt710
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| posted on 29/5/13 at 12:18 PM |
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Yeah I still have to check the dimensions of the engine, I do think it might be an issue to fit it's height under the hood. As for the bike
engine, I don't think I will be tracking every weekend, but I do love the high revving sound of it so it won't be a problem for me.
I've searched on reverse gearboxes for bike engines and found they are pretty unreliable and quite costy for an unreliable gearbox which goes
only fwd and rev. :/ VR6's are relatively cheap and they do offer a good ammount of torque compared to a bike engine at least.
What would you recommend as a reverse gearbox?
Manuel
[Edited on 29/5/13 by gatt710]
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nick205
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| posted on 29/5/13 at 12:48 PM |
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A quick Google suggests a weight of 130kg for the VR6 motor, roughly the same as a Ford Pinto - not light. Ford Zetec or if funds allow Duratec has
to be the most proven and cost effective option for a CEC.
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britishtrident
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| posted on 29/5/13 at 03:18 PM |
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Because of the layout V6 engines have a lot of inherent vibration, in its tintop home they have lots of carefully designed soft rubber mounts to
hide all the vibrations, in a very light car with stiff enginemounts the bad vibes will be more apparent and tiresome.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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avagolen
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| posted on 29/5/13 at 04:38 PM |
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Have you considered the Mazda 6 pot.
Claire used to run one in a Fury. (username clairetoo )
The Answer for everything, but never the last word....
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Not Anumber
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| posted on 29/5/13 at 05:05 PM |
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If the Mazda 6 pot is even half as good as the excellent MX5 4 pot it will certainly be a good engine.
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