Mythbuster: continuing project thread of my 1303 '75

[Wally]

Originally Posted by aartjan

What about moving the inner pivot of the suspension arms upwards?

Its already on the upper one of the two holes on that bracket...and there's no room to go even higher. Trust me, I've looked, but good thinking and tnx for thinking with me

However, more front rollstiffness will generally tend to more understeer.

Hmm, I had forgotten about that effect...damn!
The balance is actually pretty good. Its just that the front tires seemed to have suffered more then the rears and on one very tight corner, I wished for a little less understeer, but maybe I should have turned in later there..

[judgie]

what camber are you running at the front? i found the best set up for mine was to have the rear quite soft and the front fairly stiff.
run 130lb front springs and a h/d bug pack anti roll bar, rear bars are 944 and the 944 anti roll bar. front camber is -3* and rear is -2.5* front toe is set to 0 and the rear has 1.5 toe out.
it will pick the inside front wheel up but at least thats getting as much wieght as poss on the powered wheels which helps combat the wheel spin.
i found that high speed corners were improved when i fitted the front spoiler and splitter and improved again when i fitted the dive planes.
guessing this will all change now i have fitted the lsd.

[Wally]

Originally Posted by judgie

.
run 130lb front springs and a h/d bug pack anti roll bar, rear bars are 944 and the 944 anti roll bar.

My set-up and car are probably not really comparable..:
Your rear 944 torsion bars are 23mm. I run 25,5mm (M030) bars.
Your rear 944 anti roll bar is what? 17mm?. I run a 24mm Whiteline anti roll bar in the rear...

My front springs are already 50 lbs up over what Lee send them with. IIRC I now have 350lbs springs...

That why I said each car is so different. Mine is probably so much heavier and therefore needs more of everything I guess.

[Bruce.]

Wow... you are already running a pretty tight rear.

How about replacing the side and rear windows with Perspex to reduce the high up weight? Or would that cause legal problems with road use in NL?

Like the the "I'll be baack" style glasses

[typ4boy]

Originally Posted by Wally

My set-up and car are probably not really comparable..:
Your rear 944 torsion bars are 23mm. I run 25,5mm (M030) bars.
Your rear 944 anti roll bar is what? 17mm?. I run a 24mm Whiteline anti roll bar in the rear...

My front springs are already 50 lbs up over what Lee send them with. IIRC I now have 350lbs springs...

That why I said each car is so different. Mine is probably so much heavier and therefore needs more of everything I guess.

Also remember this front set up is our fast road not our full on track set up.

[Wally]

You found me Bruce

and I already have lexan sides (door window, rear sides) and rear window..

Originally Posted by typ4boy

Also remember this front set up is our fast road not our full on track set up.

Yeah, suspected as much, but really I probably would like this set-up better anyways. It IS after all really not a 'full on track car' either. I drove 2 hours one way to the track, so _some_ suspension movement is desireble still just to arrive fit and be able to 'race' in good spirit

[Wally]

and the very next day/evening I was on 'drive-my-friends-to-be-graduated-son-to-pram duty' :



running at idle for over half an hour in queue...he was happy though

[judgie]

very true walter , my car is set up for what are pretty rough [for tarmac] and tight hill climbs sprints. no good having very stiff suspension as the bumps and camber changes mean you need quite a lot of suspension travel.
spend most of the time in 2nd or 3rd on the hills only a few tracks that i use 4th. just about ever track has a 1st gear hairpin so good mechnical grip is needed hence the softish suspension.
hopefully the lsd i have now fitted will improve it even more out of the slow corners but i can see some changes being needed to set up and driving style now its fitted.

[Wally]

Originally Posted by wrenchnride247

They would do 60% but said it would be too unpredictable on wet ground. And it would wear tires fast. They HIGHLY discuraged 60% for the street.

Wasn't talking about 60%, but 40%
See ^^

[NO_H2O]

Always good to watch videos from Wally. Thanks.

[Wally]

One of 'those' one wheel burn-outs, this time at Budel june 2011. Won't do this anymore till I got a diff.
http://www.youtube.com/watch?v=1FVs5O3uJoQ

[70Turbobug]

Nice burnout Wally....you made enough smoke so you can´t really tell it was only one wheel

[TSAF]

Wally POWER

[NO_H2O]

Nice work Wally.

[TSAF]

Wally burn rubber not your soul