[conti_rowland]

Ok so now i've added the PP Lotus to the other 3 cars I need to build the exhausts to do the car justice!
When you spend £6 it doesn't matter but at £40 it just seems to....

So my chosen reference car is this from 1971

And it seems to me that exhaust would correspond with this photo from 1972:

Not the shape you were expectung right?

The car started with what I call the horizontal format:

In 1970, and in early 1971 we had what I call the vertical version adapted I believe to the suspension changes....

So were the two sides just different or was my late 1971 / 1972 with the single tube outside the parallel link just how it was on both sides in that period?

Hopefully you serious motor racing fans can help me solve the riddle and go forward.

Cheers
Andi

 

[CJA]

Ey Up CR.

I think safe to suggest that the suspension would be symmetrical, so the exhausts would have to follow similar patterns, cylinder stagger excepted of course.

The three cars shown in B&W have different suspension layouts, so the 71/72 car would have the pipe outside the link on the rhs as well !!.

vbr Chris A.

 

[Fastjet57]

The original 72 of April 1970 had anti-dive and anti-squat front and rear suspension geometry. Both gave the driver no ''feel'' so were (somewhat reluctantly) removed in 2 steps. 72B (anti-squat removed) 72C (both removed). All these 3 variants had a single rear radius rod. All this happened in 1970, and 72C was Rindt's ''a monkey could win with that car'' 1970 championship winning version.
In 1971 Fittipaldi felt he couldn't set up the car easily due to lack of reaction to geometry changes, so a twin radius rod (replacing the single radius rod of 72, 72B, 72C) was adopted together with twin parallel lower links replacing the original triangular lower wishbone - giving the 72D. This transformed the car (again) and Fitti went on to win the 1972 championship relatively easily.

So I think your pictures are : -

72D 1971 Monaco
72D 1972 Brands Hatch
72 1970 Silverstone International Trophy
72C 1970 Brands Hatch

So you pays your money and you takes your choice!! Putting the exhaust around the lower radius rod will be a challenge - so if you go for it good luck!!

Phil.

n.b. all the above from - Lotus 72 Formula One Icon by Michael Oliver.

 

[Fastjet57]

Stet. The first pic is 72D 1971 British GP. I can just make out the different airbox (single top as opposed to twin side inlets) and the slightly different numeral ''1''.

 

[conti_rowland]

Guys the history is always interesting but I know perfectly which races the cars are from as I have the book captions to go with them.....
I was hoping instead someone might know or better, have detail photos / drawings of the exhausts at the British GP of 1971 which as has been pointed out is my target.....

Thanks for your time anyway!

Cheers
Andi

 

[abie321]

And there I thought you were doing these builds for fun

Even your fun builds are superb....... need to visit Italy for some lessons!!!

 

[conti_rowland]

QUOTE (abie321 @ 7 Feb 2012, 07:59) <{POST_SNAPBACK}>And there I thought you were doing these builds for fun

Where's the fun if they don't stimulate you????

I'm getting carried away I know but the exhausts on the PP kit are the part just crying out to be remade....

Well I made the left side last night so will try the right tonight. The left took only two attempts and doesn't look too bad.....

Cheers
Andi

 

[stoner]

its comon practice nowdays, each of the header tubes have to be the same length for performance and the only way to do it is the snakes nest you see there, to bring it to a single point for the exhaust. john.

 

[superhornets]

Hi Andi
This is a much talked about subject onthe forum
and in the past we have had input from proper race mechanics
The fact is that even in those days cars would be different from race to race as things were developed or rules changed
How many different rear wings did the lotus 72 sport during the 1970 season ?at least 3
When you mould a body of a car ,as steve ward does .what he will do is either base the car on a particular race ,or just do a generic model which will incorporate the easist bits to make from a number of photos
What you need to do is to decide if you want a specific model for a specific driver , at a particular GP
What you then do is to get all the photos from that race and make the model as near as you can.

What you dont do is make a generic model and then beat yourself up because there are detail differences from the car that jochen rindt won the british Gp in 1970 .

If you dont do that you,ll drive yourself round the bend.

Cheers tony