Center gravity... Results
#1
Rennlist Member
Thread Starter
Center gravity... Results
Ok just spent the day with Chris franklin getting the geo done on the 64 & I'm well happy as the 64 now drives 100% better like night and day, I had bump steer on the front from rs height -14 mm...oops & real heavy steering from to much camber on the front & missing washers on the new top mounts!! I found it real twitchy at high speed to so Chris drove it first to see what the car was doing and then spent the whole day sorting it all out..I wanted it set up for road not track as I'm prob only going to go one or to times a year so a fast road set up is what I went for..rs height +10 & even on the way home in the pissing rain and wind it felt supa stable & has transformed the car!!
Thank you Chris franklin
He's a few specs....make of it what you will.
Full monty inc corner balance.
Mucky/salty/wet...
Thank you Chris franklin
He's a few specs....make of it what you will.
Full monty inc corner balance.
Mucky/salty/wet...
#2
Race Car
... but happy!
& thanks for all that detail! gotta love the impact of that first/long overdue corner balance
your aligment looks quite similar to mine it seems .. ex the camber whic might be road preference showing thru?
Actually quite different ex castor.
964 wheel aligment
& thanks for all that detail! gotta love the impact of that first/long overdue corner balance
your aligment looks quite similar to mine it seems .. ex the camber whic might be road preference showing thru?
Actually quite different ex castor.
964 wheel aligment
#4
Rennlist Member
Thread Starter
... but happy!
& thanks for all that detail! gotta love the impact of that first/long overdue corner balance
your aligment looks quite similar to mine it seems .. ex the camber whic might be road preference showing thru?
Actually quite different ex castor.
964 wheel aligment
& thanks for all that detail! gotta love the impact of that first/long overdue corner balance
your aligment looks quite similar to mine it seems .. ex the camber whic might be road preference showing thru?
Actually quite different ex castor.
964 wheel aligment
#5
Rennlist Member
Thread Starter
& he said the rs has different rear arm adjusters that are left/right but c2's are the same for both sides if you go lower your in bump steer territory as I found out!!
Give him a buzz he's very easy to talk to if you want to get technical on the subject as I've limited understanding & the big words went straight over my head a bit....
#6
Nordschleife Master
They look a nice set of road settings to me.
Regarding the 1376.5 Kg on on the display: How much fuel in the tank and was there ballast in the driver's seat?
Regarding the 1376.5 Kg on on the display: How much fuel in the tank and was there ballast in the driver's seat?
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#9
Nordschleife Master
#11
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When Chris did mine he noted 3/4 tank of fuel + 16kg boot ballast (Porsche din70020 specification (apparently)) bu no driver ballast.
Corners were 267kg, 285kg, 400kg and 418kg on a C2 (1370kg before you get the calculators out).
Since then I have put on much lighter wheels (wont impact the overall total much), rear seat backs taken out and Recaro seats put in which have taken a chunk of weight off (I could hardly lift the originals up the ladder to the loft (yes I am weak and unfit!).
For interest, 1350kg for a C2, 1420kg for C4, 1485kg for Turbo and 1320kg for RS America quoted in 'Technical data without the guesswork
Corners were 267kg, 285kg, 400kg and 418kg on a C2 (1370kg before you get the calculators out).
Since then I have put on much lighter wheels (wont impact the overall total much), rear seat backs taken out and Recaro seats put in which have taken a chunk of weight off (I could hardly lift the originals up the ladder to the loft (yes I am weak and unfit!).
For interest, 1350kg for a C2, 1420kg for C4, 1485kg for Turbo and 1320kg for RS America quoted in 'Technical data without the guesswork
#12
Three Wheelin'
They are so heavy ....for " sports cars "...
Porsche should have made the RS around 1000 kg, C2 1200 & C4 1250 and cup 800 kg .
I have the impression they are over designed....Specialy the gearbox and engine @
250 kg .......!?
Porsche should have made the RS around 1000 kg, C2 1200 & C4 1250 and cup 800 kg .
I have the impression they are over designed....Specialy the gearbox and engine @
250 kg .......!?
#13
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Doesn't detract from the fact that the pure sports versions (RS etc) might have been expected to have shed more weight compared to the standard versions (95%+ of which will never be used in real anger so a long life through good build quality is probably more important)
#14
Nordschleife Master
I can see where you're coming from but I doubt some of those weights would have been possible. The cup is as raw as it gets and is about 1100Kg IIRC? Surely to go sub 1000Kg you'd have to lose the shell and use a frame instead and then it's no longer a 911?