LAGUNA SECA SCCA RACE July 29-30 2017
07-19-2017, 04:04 PM
#1
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Thread Starter
LAGUNA SECA SCCA RACE July 29-30 2017
If anyone is in the area, come out and watch the races. PCA will be joining the SCCA weekend and will have a few cars in our group as well, as our group is the unlimited sports car class. (porsches, nascar, BMWs, mustangs, vets, vipers, etc)
I broke down an bought my second set of tires since 2001. so, it will be interesting how a new set of "A" Hoosiers with the steering rack bushings fixed, works at the track!
Since tires are so expensive now, its imperative to rotate.. im running 4 square tire size, but have to actually dismount and re-mount to put the fronts on the rear rims due to the offset and wheel size.
im thinking of doing that fancy fender modification that was posted many years ago. anyone remember? he split the fender down the seam, and then put a screen spacer and a re-cut to keep the lines parallel. (brilliant) i just found the pics .. Ill have to post and get input. i have a hard time modifying the stock body panels.... especially in a "hack " fashion. anyway, that way, i can put the rear rims (which only need a 1" wider outer rim piece) to make all the rims the same and work on all corners. Plus, it might handle a little better with a slightly wider positioned rim.
thoughts?
I broke down an bought my second set of tires since 2001. so, it will be interesting how a new set of "A" Hoosiers with the steering rack bushings fixed, works at the track!
Since tires are so expensive now, its imperative to rotate.. im running 4 square tire size, but have to actually dismount and re-mount to put the fronts on the rear rims due to the offset and wheel size.
im thinking of doing that fancy fender modification that was posted many years ago. anyone remember? he split the fender down the seam, and then put a screen spacer and a re-cut to keep the lines parallel. (brilliant) i just found the pics .. Ill have to post and get input. i have a hard time modifying the stock body panels.... especially in a "hack " fashion. anyway, that way, i can put the rear rims (which only need a 1" wider outer rim piece) to make all the rims the same and work on all corners. Plus, it might handle a little better with a slightly wider positioned rim.
thoughts?
Last edited by mark kibort; 07-19-2017 at 04:34 PM.
07-20-2017, 04:48 AM
#2
Rennlist Member
Thread Starter
remember this fender job
this was an amazing race car fender spacing project
this is what I'm thinking... but cutting the beautiful fenders is scary and almost sacrilegious
this is what I'm thinking... but cutting the beautiful fenders is scary and almost sacrilegious
07-20-2017, 05:05 PM
#5
Rennlist Member
Thread Starter
However, its needed and the alternative is very expensive....so , the chop plan begins! ii need to do it before these tires get mroe than 2 days on them!
07-20-2017, 06:38 PM
#6
Race Director
I predict you will drop 1.5 seconds off your personal best lap time!!!! There is a reason so many other racers cycle out A tires so quickly! You should be in the 1:35's at laguna with fresh rubber!
07-20-2017, 06:40 PM
#7
Chronic Tool Dropper
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Mark --
Buy a couple strips of aluminum and a pop-rivet gun, a kliko tool and a box of those too. There's a lot more to the project, like figuring out how the front and rear are going to line up with existing door and nose. and the bottom will need to be shimmed out too. Nothing is as easy as it first looks.
There's a good case for adjusting the steering arms on the front spindles to account for the wider track, so the ackerman comes back to where you need it.
Buy a couple strips of aluminum and a pop-rivet gun, a kliko tool and a box of those too. There's a lot more to the project, like figuring out how the front and rear are going to line up with existing door and nose. and the bottom will need to be shimmed out too. Nothing is as easy as it first looks.
There's a good case for adjusting the steering arms on the front spindles to account for the wider track, so the ackerman comes back to where you need it.
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07-28-2017, 07:46 PM
#8
Rennlist Member
Thread Starter
Mark --
Buy a couple strips of aluminum and a pop-rivet gun, a kliko tool and a box of those too. There's a lot more to the project, like figuring out how the front and rear are going to line up with existing door and nose. and the bottom will need to be shimmed out too. Nothing is as easy as it first looks.
There's a good case for adjusting the steering arms on the front spindles to account for the wider track, so the ackerman comes back to where you need it.
Buy a couple strips of aluminum and a pop-rivet gun, a kliko tool and a box of those too. There's a lot more to the project, like figuring out how the front and rear are going to line up with existing door and nose. and the bottom will need to be shimmed out too. Nothing is as easy as it first looks.
There's a good case for adjusting the steering arms on the front spindles to account for the wider track, so the ackerman comes back to where you need it.
it will be nice to have the same rims on all 4 corners. rim halves on their way.
i have the rivet gun... what are Kilko tools?
07-29-2017, 11:54 AM
#10
Rennlist Member
Thread Starter
so, putting the scrubs on AND fixing the steering rack make driving a 1:36.5 effortless. went out , did two slow laps, one faster lap and then hit it for 2 laps. both 1:36.5 and then came in and pulled the tires off the car for the 24 hour rest.
what a difference tires make!!I feel old.. look at the cars out there! my 1987 looks a little out of place.
about 10 folks came over to talk to me about the car. ...... its getting some good attention. I was tailing the nascar truck for qualifying at 650hp, watching him crash into the red birms and get airborn. which i had the video rolling.
now just waiting for the fog to burn off. race starts at 11 if anyone is near by!
Mk
07-29-2017, 09:15 PM
#11
Chronic Tool Dropper
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Mark --
Klicko (sp?) is a fabricating fastener that is like a removable rivet. You drill a hole, pop one in with the tool, and it holds things together while you continue to fit and drill. It doesn't open up the hole the way a rivet does, so you can put things together and take them apart painlessly as you do all your fitup. Once everything is perfect, you remove them one by one and replace with rivets.
I would cut with a small rotary blade. Jigsaw tears at the metal too much, IMO. A 3" wheel on a die grinder does the job pretty well. Just wear a full face shield and glasses inside, so you'll survive a wheel explosion.
Klicko (sp?) is a fabricating fastener that is like a removable rivet. You drill a hole, pop one in with the tool, and it holds things together while you continue to fit and drill. It doesn't open up the hole the way a rivet does, so you can put things together and take them apart painlessly as you do all your fitup. Once everything is perfect, you remove them one by one and replace with rivets.
I would cut with a small rotary blade. Jigsaw tears at the metal too much, IMO. A 3" wheel on a die grinder does the job pretty well. Just wear a full face shield and glasses inside, so you'll survive a wheel explosion.
07-29-2017, 09:28 PM
#12
Addict
Rennlist Member
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Mark/dr Bob,
I had to look it up, here's an example:
__________________
George
90 S4 Grand Prix White (Murf #5 - 210 mph top speed)
94 GTS 5-Speed Midnight Blue
06 Cayenne S Havanna/Sand Beige (PASM)
http://928.jorj7.com
I had to look it up, here's an example:
__________________
George
90 S4 Grand Prix White (Murf #5 - 210 mph top speed)
94 GTS 5-Speed Midnight Blue
06 Cayenne S Havanna/Sand Beige (PASM)
http://928.jorj7.com
07-30-2017, 03:31 AM
#13
Rennlist Member
Thread Starter
Mark --
Klicko (sp?) is a fabricating fastener that is like a removable rivet. You drill a hole, pop one in with the tool, and it holds things together while you continue to fit and drill. It doesn't open up the hole the way a rivet does, so you can put things together and take them apart painlessly as you do all your fitup. Once everything is perfect, you remove them one by one and replace with rivets.
I would cut with a small rotary blade. Jigsaw tears at the metal too much, IMO. A 3" wheel on a die grinder does the job pretty well. Just wear a full face shield and glasses inside, so you'll survive a wheel explosion.
Klicko (sp?) is a fabricating fastener that is like a removable rivet. You drill a hole, pop one in with the tool, and it holds things together while you continue to fit and drill. It doesn't open up the hole the way a rivet does, so you can put things together and take them apart painlessly as you do all your fitup. Once everything is perfect, you remove them one by one and replace with rivets.
I would cut with a small rotary blade. Jigsaw tears at the metal too much, IMO. A 3" wheel on a die grinder does the job pretty well. Just wear a full face shield and glasses inside, so you'll survive a wheel explosion.
07-30-2017, 03:42 AM
#14
Rennlist Member
Thread Starter
Question regarding possible rear bearing issue
The race went well. had a great start and then a pretty bad wreck with two cars put us in a caution for a few laps, and on the re-start, i started to hear a growling on left turns (turn9) and some pretty big vibration.. could a wheel bearing cause a wheel hopping type of vibration? had to back off toward the end of the race but there was no position to be lost. when i got in the pits, i jacked up the car and ran the rear wheels up to the vibration speed 100mph, and the right wheel was making a racket. (and bouncing up and down a bit)
took the car for a 50mph cruise when i got home and on the left turns (s turns) the noise seems to follow the right rear. not anwhere near as bad at the high speeds at the track, but still noticible. wheel bearing? could it be the diff? CV joint? there also is a sound like a e-brake spring is flying round in there. dont know if that is the bearing or maybe it is the spring.
(history: i had a loud growel at sears point on right turns, and after changing that one bearing, the noise was illuminated. but that was 10 years ago. this is the same rear end set up.)
ended up in 5th place. pretty good video of a few interesting laps.
took the car for a 50mph cruise when i got home and on the left turns (s turns) the noise seems to follow the right rear. not anwhere near as bad at the high speeds at the track, but still noticible. wheel bearing? could it be the diff? CV joint? there also is a sound like a e-brake spring is flying round in there. dont know if that is the bearing or maybe it is the spring.
(history: i had a loud growel at sears point on right turns, and after changing that one bearing, the noise was illuminated. but that was 10 years ago. this is the same rear end set up.)
ended up in 5th place. pretty good video of a few interesting laps.
Last edited by mark kibort; 07-30-2017 at 04:23 AM.
