Bent (or not) cars, Wealth (or lack of) and Scrutineering (ex Goodwood thread)

[terence]

Originally Posted by PeterMorley

The speed the project's going that might not be a problem!!

It turns out not to be owned by the chap I was speaking to but by an Alvis Specialist based in Wales,apparently he has lots of hair and a big beard,not very tall.Anyone fitting this description,please contact Peter Morley,its not urgent though.

[p261brm]

Originally Posted by zefarelly

thats the fact that distorts it all, drivers. As I've said before, I'm as fast as Bob Olthoff/Jack Sears etc etc in my car as thwey where in period in the same, I have more power, they have more talent, its evened out, those who really can pedal quickly AND have more power are faster than in period.

What give it away is reading old magazines . . . Lotus Cortina for sale, fresh XYZ twin cam . . .140 BHP. the1500GT precriossflow was upped on road cars to 100 BHP by Willment and Spike WInters ran them at 120 BHP with a 7200 rev limit for the gp2 Cortina GT. Its not hard to find the facts, its just no one wants to know/find them!

Sure does Joe, Outright lap record Goodwood in period the only true benchmark as it is as it was apart from surface, set by JYS & one Jim Clark 1:20-4.
Attwood Glover Trophy 2004 1:23-7 P261V8 2ltr around 180 ish bhp
Redman Glover Trophy 2008 1:26-6 P57 V8 1-5ltr gestimate 180 bhp almost identical times to Attwood driving same car in 1964.
Stretton Glover Trophy 2009 1:23-? Lotus BRM capacity power unknown.
The two 'old hands' have not slowed down by much !

[PeterMorley]

Originally Posted by terence bower

It turns out not to be owned by the chap I was speaking to but by an Alvis Specialist based in Wales,apparently he has lots of hair and a big beard,not very tall.Anyone fitting this description,please contact Peter Morley,its not urgent though.

I just downloaded the freebie Lotus (single cylinder) software and it looks promising - once I've worked out what to do with it!

[p261brm]

Originally Posted by PeterMorley

I just downloaded the freebie Lotus (single cylinder) software and it looks promising - once I've worked out what to do with it!

OK Peter but has it's limitations, all simulation seems to be on a single cylinder as are 1/2 scale mock ups prior to producing the prototype, then it still smacks in the face. Good luck, hope you have plenty of hair!

[zefarelly]

the nice thing about the one I'm using is its a complete engine with manifolds etc, header design makes a huge difference to a weedy 4 cyl prehistoric shopping engine . . .in fact I've arguably been wasting my time playing with cams without changing the manifold design to suit.

I can also give it crap petrol and ignition advance to see when the pistons will melt

theres no add on for overheating by a crap rolling road operator though !!!

[terence]

Just as long as its an Homologated manifold though Zef?

[p261brm]

Originally Posted by zefarelly

the nice thing about the one I'm using is its a complete engine with manifolds etc, header design makes a huge difference to a weedy 4 cyl prehistoric shopping engine . . .in fact I've arguably been wasting my time playing with cams without changing the manifold design to suit.

I can also give it crap petrol and ignition advance to see when the pistons will melt

theres no add on for overheating by a crap rolling road operator though !!!

Sounds a good programme, sounds similar to one I have Desktop Dyno the big fault being USofA no input available under 3000cc just not into ex Sherman tank engines. OK for those who do, just not

[zefarelly]

Originally Posted by terence bower

Just as long as its an Homologated manifold though Zef?

size isn't a problem here Terry

its the length which needs tuning, not on the papers . . .

Given the change or 'inheritance' at the top I don't think the FiA can afford to be heightist about such insignificant detail

I've never seen Euro software P261brm . . . .maybe its too accurate to be released?

[p261brm]

Originally Posted by zefarelly

I've never seen Euro software P261brm . . . .maybe its too accurate to be released?

? would not know Zef, Lotus is IBM, Desktop Dyno came with a book on cam design but will only allow models above 3000cc and a rev limit of 7K not a lot of use if one wants 1500cc and 11K.

[Dinkel]

Originally Posted by terence bower

I got talking to a very clever engine specialist only yesterday,he was telling me about a new 'program' he has just bought.You can now 'virtually' build an engine,just enter the crank/rod material,bore,stroke,inlet exhaust valve sizes and proposed fuelling. This program will give the safe max rpm,the power you can expect and so on.Interesting as this is,it will also 'break' rods if you push the revs too high.You can ,in effect,build and dyno the engine in round about an hour,you can even print of the power map if you so desire. Frightening isn't it,the scope this leaves for those who aren't tied by AppK regs.

If this is so it would be easy to get historic racing cars on the rollers and check bhp to know how much the engine is bent? How much time for a car to get set up for a roll? It must be warm, so just after the race for instance . . .