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Silly me: I bought a 944 for E-street Autocross

 
Old 06-03-2019, 07:47 AM
  #151  
balefire
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Originally Posted by edfishjr View Post
245/40 on 7 and 255/40 on 8, RE71R Bridgestones. Badly scuffed-up 17" Cup 1's I got cheap that I'll plasti-dip glossy white.
Tire guy said only slightly more difficult to mount than normal. Didn't charge me any extra.

It will be a while before I get to test them out. Missing the next local due to a trip next week.


FYI, I've successfully had my local Firestone mount 275/35/18 on 18x8 for several years. It is a little sloppy but is the absolute maximum tire avail for 8".
My buddy has used this method to win a variety of NTs and Pro Solos with my underdog cars (rx8, 996, and most recently 997 GT3) over the years
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Old 06-03-2019, 09:40 AM
  #152  
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Originally Posted by balefire View Post
FYI, I've successfully had my local Firestone mount 275/35/18 on 18x8 for several years. It is a little sloppy but is the absolute maximum tire avail for 8".
My buddy has used this method to win a variety of NTs and Pro Solos with my underdog cars (rx8, 996, and most recently 997 GT3) over the years
Good info, but I can't go to 18" and there's nothing wider in 17".

The optional 8"-wide rear wheel on these cars was 16" diameter, so the legal diameter range is 15" to 17"

But, if I decide to go to Nats with my Corvette in BS once again and get beat by the M2's I could do 275/315-18 Rivals on the 8.5 and 9.5 wheels. It's a possibility depending on what happens in the 944 at Bristol in a few weeks. It's not clear yet that this new wheel/tire combo is actually faster than the narrower tires on 15" wheels.

Last edited by edfishjr; 06-06-2019 at 12:15 AM.
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Old 06-06-2019, 12:12 AM
  #153  
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Got the head back from Memphis Motorwerks. Near mirror finish where it was surfaced, except for
dark spots that are areas of corrosion pitting. I plan to assemble with Permatex 51813 (Anaerobic gap filler) in these areas.
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Old 07-02-2019, 01:39 AM
  #154  
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Got the engine reassembled and running fine. Had a test & tune on Sunday where I compared 245-17 on 7" (fronts) & 255-17 on 8" (rears) RE71Rs vs. 245-15 on 7" and 245-15 on 8" Rival-S.

Rivals faster by 1s on a 40s course even though had to shift up to 3rd and back down once. The 245 on the front gave awesome grip.

17" wheels/tires are almost exactly 2" diameter larger (gives me 56mph in 2nd but hurts acceleration and raises CG by 1") and 9lbs per corner heavier.

Lightness and lower CG win. Back into the Tiny Rivals club.

Edit: I also got runs in an SSR C7GS on Hoosiers (awesome), a turbo-Miata in SSM (don't like turbo lag), a CS S2000 (rolls too much without a front bar but they are great anyway) and a full-race old-school Camaro with who knows how much horsepower and a pneumatic paddle-shifter for the auto-trans and I couldn't hardly reach the pedals or the steering wheel with the fixed seat set for the very large driver and the harness wouldn't adjust enough to hold me in...(Yup. I spun it.)

Edit 2: Two of my ES competitors who drive a '99 Miata Sport each took a run in the Porsche. "You should never be able to beat me in my Miata with this car." was one conclusion. "That you have, in fact, beaten me tells me you're driving the crap out of this thing."

Last edited by edfishjr; 07-02-2019 at 02:07 AM.
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Old 07-08-2019, 06:42 PM
  #155  
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Goal achieved: Trophied in 3rd place in ES at the Bristol Match Tour last week.

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Old 07-10-2019, 09:27 AM
  #156  
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Awesome! Great seeing you, unfortunately I didn't get to see you run, other than hearing you come through the finish as I was pulling up to the start line.
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Old 07-10-2019, 05:19 PM
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Originally Posted by burglar View Post
Awesome! Great seeing you, unfortunately I didn't get to see you run, other than hearing you come through the finish as I was pulling up to the start line.

Man, you were killing it in GS. 1st place in the Match Tour and a trophy in the Champ Tour. Congrats.

My lack of downshifting skill & experience killed my chances in the Champ Tour. I think I've got it down now, so hopefully can do better at Peru.
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