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Some help from the MNR experts please.
Doctor Derek Doctors - 12/1/11 at 01:04 PM

Hello all, I could use some help from the MNR experts on here.

To keep the story short and to the point I aquired a chassis that can best be described as an RGB spec', 7 silhouette, a really nice 1 off special made from round seamless tube with an integrated MSA roll cage from caged, designed to take a ZX10R lump.

It was a bit of a rush buy and so I don't have all the information about the original designers intent but much research and investigation of the parts I have done suggests that it has been designed to use MNR suspension, the rear uprights are definatly MNR items and I have the rear end pretty much sussed out now.

I am struggling more with the front though, most notably the mounting of the shocks. The chassis was supplied with two Cortina font uprights that I believe MNR use and two lower wishbones, it has been designed to take a MK2 Escort steering rack.
There are no shock/pushrod mounts on the lower wishbones (they are unpainted and unfinished) but there are mounts for the top of the shock on the chassis in what looks like standard outboard suspension position. It seems though that the MNR Vortx uses Pushrod suspension at the front, but maybe the designer intended to use the outboard geometry of the Vortx Mazda?

What I would be really appreciative of is if anyone has the geometry of the front suspension of an MNR (to see if it matches mine) and if it does some help to loate the bottom shock mount in the right place on the wishbone. But if I could get the geometry information I would like to copy the inboard suspension geometry of the Vortx for mine.

Also lengths of the shock/strut units would help.

Lastly if anyone fancies posting any pictures showing the front and rear suspension set-ups of an MNR it would be very much appreciated.

Sorry for the long story but I am aiming to get the car sat on its wheels by the end of Feb' to make sure the project doesn't stall and any help is appreciated

Cheers

coozer - 12/1/11 at 01:17 PM

This what mine looks like with Sierra uprights...



Steve

daniel mason - 12/1/11 at 04:55 PM

if it was designed on mx5 geo then mx5 front uprights would be used an not the modified cortina ones. can you post a few pictures? was it tim cheneys chassis? TimC on here!

Doctor Derek Doctors - 12/1/11 at 07:35 PM

quote:
Originally posted by daniel mason
if it was designed on mx5 geo then mx5 front uprights would be used an not the modified cortina ones. can you post a few pictures? was it tim cheneys chassis? TimC on here!


Good Guess, yes it was Tims chassis, he is on his travels though so I don't like bothering him.

As a design engineer myself I want to understand the original design intent of the car so I can get the right parts, build it to a level that such a nice chassis deserves and then add my own slant on the project.

Here is a picture of the front pick-ups if (I can get the thingy to work). it does look like the car in the picture at the top and not an inboard suspension car.




I really need to get on and measure up the front end so that I can get the parts bought to get it on its wheels, I have mainly been concetrating on the rear end and have that sussed out.

Hellfire - 12/1/11 at 09:01 PM

Steve Hignetts MM Paradigm if I'm not mistaken. Might be worth contacting Steve via U2U for answers to your questions.........

Phil

daniel mason - 12/1/11 at 09:14 PM

i bought my last mnr from tim. hes a top guy! steve also built that one and was very helpful with me whenever i had questions. take a look at www.p4nts.co.uk/mnr

iain b - 18/1/11 at 10:18 PM

that is not an mnr chassis

gavin174 - 18/1/11 at 10:45 PM

got to agree with Iain..

doesnt look a MNR chassis to me

daniel mason - 18/1/11 at 11:02 PM

its not an mnr chassis. steve built it!

Doctor Derek Doctors - 19/1/11 at 12:44 PM

quote:
Originally posted by daniel mason
its not an mnr chassis. steve built it!


Its funny isn't it. Seem that the innabilty to read is spreading, it says it in the 2nd sentence of the original post that it was a one off RGB car.

daniel mason - 19/1/11 at 03:23 PM

i can read perfectly well thanks mate. i tried to help earlier in the thread and was only replying to iain bakers post, to agree with him.

Doctor Derek Doctors - 19/1/11 at 06:47 PM

quote:
Originally posted by daniel mason
i can read perfectly well thanks mate. i tried to help earlier in the thread and was only replying to iain bakers post, to agree with him.


Sorry mate, I think one of those winking faces was needed their, I was agreeing with you and mocking internet forum lack of reading.