first race of the season |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
first race of the season |
brant |
May 24 2022, 11:27 AM
Post
#1
|
914 Wizard Group: Members Posts: 11,739 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains |
A week back, I attended a vintage race in colorado
the car did fine... the driver was slow, but still had fun a couple of shots I ran a staggered set of bias- ply vintage tires... car was not aligned for them... and they were a bit underwhelming... Attached thumbnail(s) |
wndsrfr |
May 24 2022, 11:42 AM
Post
#2
|
Senior Member Group: Members Posts: 1,436 Joined: 30-April 09 From: Rescue, Virginia Member No.: 10,318 Region Association: MidAtlantic Region |
Tough to get enough meat on the track on a non flared setup. What age were the tires, what sizes...looks like 15 inch rims...
|
johnhora |
May 24 2022, 12:00 PM
Post
#3
|
Senior Member Group: Members Posts: 873 Joined: 7-January 03 From: Derby City KY Member No.: 107 Region Association: None |
"Driver Slow"....Nothing like the first race of the season to get the cobwebs out of the ole driver and with a new setup added to the mix...You look good buddy...have fun this season!
|
brant |
May 24 2022, 12:02 PM
Post
#4
|
914 Wizard Group: Members Posts: 11,739 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains |
I'll have to pull the sizes.... the hoosier TDR tire in 15inch
a year or more old... just wanted to run them for a full event and see if I could adapt. I can get 8 inch fuchs under the back easily but class restricted to 7inch rims. typically run a 225/15 on 7inch rims with a 1 inch spacer for track (because I have the room) I only ran a 3/4 inch spacer on these... due to the balloon sidewalls. fenders are modified....just as wide as a flared car plus this is a low HP 2.0 motor so plenty of traction in a straight line. |
wndsrfr |
May 24 2022, 04:35 PM
Post
#5
|
Senior Member Group: Members Posts: 1,436 Joined: 30-April 09 From: Rescue, Virginia Member No.: 10,318 Region Association: MidAtlantic Region |
I'm on 15's...Hoosier TDR 7.5-23-15 front and 8.5-24-15 rear. Start at 17psi finish at 22. Car is faster than the driver which is a good thing....I think??
|
brant |
May 24 2022, 04:47 PM
Post
#6
|
914 Wizard Group: Members Posts: 11,739 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains |
You motivated me to go to the trailer
Same size and tires front and rear as you Thanks for the input on pressure I think I was at 19psi Sunday afternoon I got frustrated with the tires and put on a 6-7 year old/45??? Heat cycles. Set of 225/15 A7 tires and pulled a half second off my times Just having a hard time liking them They recover well from small slides. But they slide way to easy at turn in What did you do for alignment numbers? With these? I tested them for one day last year and went back to the speedsters Decided it was time to give them a second chanceā¦. But still not loving them Wish I had dropped the pressure in hindsight |
GregAmy |
May 24 2022, 08:41 PM
Post
#7
|
Advanced Member Group: Members Posts: 2,385 Joined: 22-February 13 From: Middletown CT Member No.: 15,565 Region Association: North East States |
I run Hoosier A7/R7s on my "regular" race car but most historics groups don't allow them.
I've run Hoosier Speedsters on my historics 914 ride and I just don't like the tread squiggle. So my recent "go to" has been Nitto NT-10 DOT 100TW tires. They're a good construction, very responsive, and wear nice. I'm moving to Conti 200TW DOT Extremes. Sure, they're not as fast as A7s (or possibly even not as fast as Nitto NT-01 100TW) but I'm a Hoosier butt-boy and I think they're a good choice. After all, this is historics racing, not LeMans. For comparisons of radial DOT tires versus "radial slick", we've tested Hoosier A7 245/40-17 and 265/630-17 M compound Hoosier same weekend (the "real" race car) and I honestly did not notice a significant difference in lap times and/or driving characteristics. I wish I could have tested them blind but I'm the one that had to swap the tires, so... I personally don't like the way bias-ply slick tires drive. I've found the 914 chassis to be much more responsive on radials, with less slip angle required and a lot more total grip. But note I've been racing on DOT radials since the 80s, from Showroom Stock through various iterations of touring cars. I find the DOTs easier to drive and easier to set up the car. But of course that's a personal preference. - GA |
ValcoOscar |
May 24 2022, 09:14 PM
Post
#8
|
Garage Life Group: Members Posts: 2,468 Joined: 19-November 13 From: SoCal Member No.: 16,669 Region Association: Southern California |
A week back, I attended a vintage race in colorado the car did fine... the driver was slow, but still had fun a couple of shots I ran a staggered set of bias- ply vintage tires... car was not aligned for them... and they were a bit underwhelming... Poster quality photos... (IMG:style_emoticons/default/first.gif) Keep (IMG:style_emoticons/default/driving.gif) Oscar |
wndsrfr |
May 25 2022, 06:38 AM
Post
#9
|
Senior Member Group: Members Posts: 1,436 Joined: 30-April 09 From: Rescue, Virginia Member No.: 10,318 Region Association: MidAtlantic Region |
I'm at just under 2 degrees negative both front and rear with about 1/16 inch toe in. I'm no expert but watch the edge wear and temperature profile to decide if change is needed....
|
brant |
May 25 2022, 08:59 AM
Post
#10
|
914 Wizard Group: Members Posts: 11,739 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains |
|
Lo-Fi Version | Time is now: 27th September 2024 - 11:40 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |