Hi guys - many thanks for all your input on the rear axle choice- very useful - But... Am getting a bit worried, have this lovely project gathering momentum - visions of the galv locost chassis holding in a lovely 5.0 special RV8 (favourite engine of all:-)) - non road going to avoid all the sva fuss and cost - been through it with landies! And taking it to track days and sprint / hill climbs eventually:-) - I have never competed in track Motorsport - it is an ambition - hence the build. BUT - according to the hill climb and sprint association classes my idea does not fit well into a class , and I am not sure weather it will be received at all?? Also as a beginner apparently I will not be able to drive a 5.0 for some time?? Is that correct?? Should I not waste time and simply put a 2.0 engine in and avoid hassle?? Need to decide now really - is there any way I can gain enough training (licence wise) to use my 5.0? I could do that while building - plan to get my track licence obviously prior to it. What do ou think guys..

Just realised this is on the incorrect sub section - very sorry guys

Dave

Hi Dave

I'm not really up to speed on the latest Hill Climbing regs, however I would say that the basis behind the locost design was the power to weight ratio.

Putting a big V8 in a locost chassis is in my mind asking for trouble, I think you may be trying to use a sledgehammer to crack a nut.

Go with a BEC or zetec, and get the same usuable power. You will also find that there will be more people in your class at Hill Climbs that you can compete with.

With regards to glvanising the chassis, I think you may also run into trouble with distortion due to the heat of the process, which is why you rarely see locost chassis galvanised. The modern ethods of powder coating are very good.

Hope this helps!

Best to settle on the class first, then work your build towards the regs. Always look at what otehrs are doing in the class as well, to see what works best.

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Originally posted by Daviesdj
Hi guys - many thanks for all your input on the rear axle choice- very useful - But... Am getting a bit worried, have this lovely project gathering momentum - visions of the galv locost chassis holding in a lovely 5.0 special RV8 (favourite engine of all:-)) - non road going to avoid all the sva fuss and cost - been through it with landies! And taking it to track days and sprint / hill climbs eventually:-) - I have never competed in track Motorsport - it is an ambition - hence the build. BUT - according to the hill climb and sprint association classes my idea does not fit well into a class , and I am not sure weather it will be received at all?? Also as a beginner apparently I will not be able to drive a 5.0 for some time?? Is that correct?? Should I not waste time and simply put a 2.0 engine in and avoid hassle?? Need to decide now really - is there any way I can gain enough training (licence wise) to use my 5.0? I could do that while building - plan to get my track licence obviously prior to it. What do ou think guys..

Just realised this is on the incorrect sub section - very sorry guys

Dave

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I appreciate the light weight is not ideal for that engine - but i hav
E the bits and parts for a v8 build, also I am a bit of a rover v8 nut. Have the galv chassis already. Just am a but nervous I may not be able to use it anywhere:-) - could go for the IVA test and get it othe road to compete- but think i would be happy to take it to track days, and to Santa pod where I am sure it would be welcome, with a big set of sticky tyres, would I have any trouble taking it to track days?? Have been in. Standard road cars but never taken or been with anybody taking a custom build?? Just looking for re-assurance really:-) sure with an aggressive cam and light rotating assembly the v8 may not be so bad...

You love V8's, then use one, its no point building a car you've not got your heart into.

Some hill climbs need an MOT don't they?

This bec - V8 (extremes of the i/c spectrum) debate will go on for eternity - it was going on when I started building my (V8) locost 11 years ago.

I would suggest that you do a) build a v8 cos really, there's nothing wrong with it - it'll handle just fine (it's still on 700kgs) and you want to b) get it on the road c) ignore anyone trying to put you off - they've got their ideas, you've got yours!

ATB

Simon

just for the record, im not trying to put him off, but no point building a car for a class he hasnt got a licence for either!

if you like V8s then go for it :-)

If it's what you really want, go for it!
You may be interested in this RV8 Caterham hill climber.

If its v8 engines that float yer boat then fit the v8 cause thats where your interest lies.
Obviously a 5.0 litre in a 7 is the extreme end of one Avenue in 7 ownership, it may not necessarily be the fastest or the best handling but it could be what you like best, unless you try one you'll never know. I've owned several 7s powered by crossflows, Pintos, CVH and now RV8, which is best? couldn't say!
The main problem with the big v8 is that although you have monster torque which is great for pushing the car on a bit putting it down through the back wheels in such a light car is difficult. A heavy throtle foot and you will be constantly breaking traction.
Great!!
Good luck


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mmmmmmm.................v8

That V8 Chaterham is one of the most lovely things I have seen - notice the pic of the blue RV8 there was a thor inlet setup used - - bet this is with a hydrolic cam and very torquey setup - perhaps a higher spec mechanical cam so power is higher up the rev range may make it better for putting the power down?? Any thoughts - My current setup is a plenum 4 barrel style (typical) - good all rounder (2 plane manifold) - but I have fabricated a crossover individual TB setup for the locost - this with 300 buick heads and mechanical cam should be a good track engine, perhaps peekey enough to not break traction at 2000 RPM???