Got the new 245/40/17 permanent tires on today...
08-25-2004, 06:00 PM
#1
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Got the new 245/40/17 permanent tires on today...
<center><img src="http://pictureposter.audiworld.com/711/90qs1.jpg"></center><p>
Everything fits fine at both ends but my rear right Vogtland spring appears to have settled in a little unevenly compared to the right (or maybe its the right didnt settle as much?). At the track the car kept lightly rubbing the new tire ever so lightly on the fender lip while the left rear had no rubbing at all. I brought the car home and swapped the rear springs just to make sure it wasn't a weight issue with the battery tho I knew my 10.5lb racing battery couldn't cause that kind of imbalance. Once I got both springs off I measured and sure enough the one rear spring has compressed 4mm more than it's counter-part. This in spite of always alternating my lap directions at the track to keep everything even.
Ended up swapping the shorter spring to the drivers side and re-measured. Same thing except this time the left rear rubs a bit.
Later this week I'm going to remove the left rear Bilstein Sport and chuck it up in the lathe and turn a groove 4mm higher in it's body to move the spring perch up an amount equal to the shorter spring. That should bring everything back to level and remove any rubbing issue.
I can also now machine the inside of the wheel flanges another 3mm which will buy me some added negative offset which will pull the wheels in further but only if any rubbing issue persists or if more settling occurs. If my measurements are correct that will leave me with 3mm clearance between tire OD and upper knuckle arm at the inside top of the rears as well as plenty of room in the front. Just as well cuz trying to buy any quality lightweight wheels with a 38mm offset would be nigh on impossible except for the custom high-end exotics like Volks/Kinesis et al.
These pics just cant do the width of these tires justice. These are some fretfully W-I-D-E tires & wheels on this car!
Everything fits fine at both ends but my rear right Vogtland spring appears to have settled in a little unevenly compared to the right (or maybe its the right didnt settle as much?). At the track the car kept lightly rubbing the new tire ever so lightly on the fender lip while the left rear had no rubbing at all. I brought the car home and swapped the rear springs just to make sure it wasn't a weight issue with the battery tho I knew my 10.5lb racing battery couldn't cause that kind of imbalance. Once I got both springs off I measured and sure enough the one rear spring has compressed 4mm more than it's counter-part. This in spite of always alternating my lap directions at the track to keep everything even.
Ended up swapping the shorter spring to the drivers side and re-measured. Same thing except this time the left rear rubs a bit.
Later this week I'm going to remove the left rear Bilstein Sport and chuck it up in the lathe and turn a groove 4mm higher in it's body to move the spring perch up an amount equal to the shorter spring. That should bring everything back to level and remove any rubbing issue.
I can also now machine the inside of the wheel flanges another 3mm which will buy me some added negative offset which will pull the wheels in further but only if any rubbing issue persists or if more settling occurs. If my measurements are correct that will leave me with 3mm clearance between tire OD and upper knuckle arm at the inside top of the rears as well as plenty of room in the front. Just as well cuz trying to buy any quality lightweight wheels with a 38mm offset would be nigh on impossible except for the custom high-end exotics like Volks/Kinesis et al.
These pics just cant do the width of these tires justice. These are some fretfully W-I-D-E tires & wheels on this car!
08-25-2004, 06:06 PM
#6
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Thread Starter
fenders were rolled even before the 225/45/17's went on...
which was the loaner tires I had mounted/balanced for test-fit purposes before these. And I don't mean "lightly" rolled either. I rolled the STEW out of em!!
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08-25-2004, 06:21 PM
#8
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Most here already know as I've been somewhat of a post trollop since I got it...
Its a VERY late production number with a lot of strange and previously dropped engine parts. Like an AAH engine code but with AFC oil system yet retains AAH cams but AFC valve train. It had the early 93 smallbore MAF but with the 078 133 471 (nonA) MAF sensor. Overall just a car that seems to have been put together from a cache of parts that was running pitifully low.
Of course it's all AA'd up now and becoming even moreso every day. Gimme another month or two and check it out After Porsche twin turbo GT3 (hands of God) monobloc brakes with 322x32mm Posche rotors. Then wait til next spring when the new 300+HP 12V engine with stand-alone engine management is unveiled. And there'll be a few surprises along the way as well. I'm definately going for the "if we're gonna be a dog, why be a Chihuahua award."
Of course it's all AA'd up now and becoming even moreso every day. Gimme another month or two and check it out After Porsche twin turbo GT3 (hands of God) monobloc brakes with 322x32mm Posche rotors. Then wait til next spring when the new 300+HP 12V engine with stand-alone engine management is unveiled. And there'll be a few surprises along the way as well. I'm definately going for the "if we're gonna be a dog, why be a Chihuahua award."
08-25-2004, 06:30 PM
#9
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300hp, out of an NA 2.8l?
Wow! Planning on using a flat crank? Keeping it at 2.8l? I saw the cool headers, so no turbo, but maybe a blower? Stasiss seems to have toped out at 200hp (wheel?) You plan on working wonders?
08-25-2004, 06:56 PM
#10
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Thread Starter
300-310HP isnt hard. Expensive yes but nothing difficult or hard about it...
Stasis got right at 212HP with the Hitachi ECU before going stand-alone engine management. Today they say they dont know but last year they were beating lighter BMW's with 360HP tho this year BMW seems to have passsed them again. And Stasis gets an exclusion on their throttle body to remain competitive.
300 isnt a very lofty goal for 2.8 litres but it IS expensive. I was getting well over 250HP out of my 2 litre Datsun SCCA B Sedan National car in the early-to-mid 70's. Today the guys still running those cars in vintage races have gotten them to over 300HP. Getting 300HP out of 40% more displacement is cake with the innovations gleaned in 30 years.
300 isnt a very lofty goal for 2.8 litres but it IS expensive. I was getting well over 250HP out of my 2 litre Datsun SCCA B Sedan National car in the early-to-mid 70's. Today the guys still running those cars in vintage races have gotten them to over 300HP. Getting 300HP out of 40% more displacement is cake with the innovations gleaned in 30 years.