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Join Date: Jun 2006
Location: O.C. CA
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something many people fail to consider is the weight of their wheels and tires - this affects braking requirements dramatically - a couple of pounds of extra tire or wheel can make a HUGE difference in how much brake you need
upon looking at the shot of the white car in the corner, those wheels are probably extremely heavy i would also say that you need a boatload more spring and swaybar |
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One reason I posted the picture is that the whole stance of the car has changed with the tires. Other racers that know my car say my body roll is pronounced now and the pictures I have show a lot of squat out of the corners. I have way stiffer then stock springs and upgraded sways, but its obvious they are no longer enough.
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the rear is showing the most need - from the amount of roll, it looks like you need to double that spring rate - if you only bumped up the front, then that would explain a lot of the braking issues, as you are probably pushing a lot more than you need to
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Im trying to recall details of the car, the fronts coil overs are 600lb and the rear torsion is 29mm. The sway are 28 front and 22 rear. Im trying to confirm those numbers but I cant find the email when I bought the car.
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theamsoilguy@hotmail.com Last edited by aftermath; 08-10-2011 at 09:19 AM.. |
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Toofah King Bad
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Great googly-moogly, your front springs are far too stiff for 29 in the rear. Try 350 (maybe 400).
Totally explains the horrible stance in earlier pic.
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» 1987 924S - Pro44 Race Car • 1987 924S - Got Boost? « "DETERMINATION. Sometimes cars test us to make sure we're worthy. Fix it." - alfadoc Last edited by Rasta Monsta; 08-09-2011 at 11:45 PM.. |
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yeah - front springs are too stiff for the entire rest of the setup
front sway bar is way too small for that spring too - a 32 would be better, but at least the 30mm M030 bar based on the 292# wheel rate of the 29mm torsion, i would either add a 150# coil to the rear, or drop down to a 350# in the front as it stands though, that car must push like crazy, and then snap power oversteer |
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Quote:
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Patrick Youtube 333pg333 86 modified 951 Last edited by 333pg333; 08-11-2011 at 04:53 AM.. |
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Location: O.C. CA
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yup
i think part of the problem is the unbalanced suspension - this would force you to brake harder than you would otherwise need to - this problem may not have shown up though until the larger tires came into play |
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Reviving the thread as Im thinking about the car....
Im running Hawk Blue and I decided that Im at least going to try a more aggressive pad. My car is a mix of parts and Im never sure what will fit. I tried to look up a more aggressive pad ( dt60 ) but I only found a match for the rear. When I ordered brake pads a while back I spoke with a shop and sent them pictures, this is what they said... "You have either early 944 turbo or 964 calipers F&R You need Hawk HB170E650 brake pads', this part number is for the blue pad I recieved. Anyone know a part number for something I should try? Ive heard from many people that a more agressive pad is what I need to match up to the rcompound tires I switched to this year.
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Hawk numbers the pads by pattern (HB170) and thickness (650 = 0.65 inches) The letter represents the compound (E for Blue) G is the DTC-60 and U is the DTC-70
They do list an HB170/650 for the DT60 and DT70 compounds; look for a 1994 968 with standard suspension if they don't list it as an application for your car.
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-John '94 968 Iris Blue '85.5 944 White - Rally Cross and wrenching practice '84 944 Gemini Grey (gone, but missed...) |
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