Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
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.
 

Welcome Guest ( Log In | Register )

3 Pages V < 1 2 3  
Reply to this topicStart new topic
> 195/65R15 tire thread, discuss, review, and post pictures of tires, wheels and cars
scott_in_nh
post Apr 18 2019, 11:16 AM
Post #41


Senior Member
***

Group: Members
Posts: 808
Joined: 10-December 10
From: Hampton, NH
Member No.: 12,471
Region Association: North East States



QUOTE(Dougal Cawley @ Apr 18 2019, 01:02 PM) *


Sorry, but that is where you are wrong. Your car will handle better on a period 165HR15 or at a stretch a period 185/70VR15 than it will on a 195/65R15. That is just a fact.

Yep a wider more modern tyre will give you greater grip in a straight line than a 165R15. but in the corners it won't unless you modify the car to suit. these cars aren't set up for modern low profile square shouldered tyres unless you lower them, add adverse camber and stiffen the springs etc.

but then you aren't making them handle better quite the opposite, but you are arguably giving them greater road holding which is different. but they won't be anywhere near as nice to drive.


No offense but we will have to agree to disagree - the thread is still about 195/65R15 so unless you offer one.....
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
scott_in_nh
post Apr 18 2019, 11:31 AM
Post #42


Senior Member
***

Group: Members
Posts: 808
Joined: 10-December 10
From: Hampton, NH
Member No.: 12,471
Region Association: North East States



I'll add I don't completely disagree with you, but on a modest width tire like a 195 I do

Also most guys do some level of upgrades to the suspension - I have a factory front swaybar, 140 lbs. springs in the back and koni's all around

The handling improvement from stock skinny tires and no swaybars couldn't be more dramatic for such simple changes (and I'm not talking about just grip)

Now back to 195/65's.....
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
rhodyguy
post Apr 18 2019, 11:40 AM
Post #43


Chimp Sanctuary NW. Check it out.
***************

Group: Members
Posts: 22,055
Joined: 2-March 03
From: Orion's Bell. The BELL!
Member No.: 378
Region Association: Galt's Gulch



ZEXIUS 326Xi 195/60 15. "DO NOT MOUNT ON 5.5 INCH RIM" is in the safety warning on the side of the tire. I can see where ignoring that might be an argument for voiding the warrantee/garentee. 40k all season 185/65-15 can be found at reasonable prices. Plenty of tire for a car driven in a reasonable fashion on the street.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
scott_in_nh
post Oct 30 2019, 02:39 PM
Post #44


Senior Member
***

Group: Members
Posts: 808
Joined: 10-December 10
From: Hampton, NH
Member No.: 12,471
Region Association: North East States



So I finally got around to mounting the tires and getting the car off of jack stands.

I haven't driven on them yet, but they have the more period correct rounded shoulder while still being a modern tire.



Attached thumbnail(s)
Attached Image Attached Image Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
horizontally-opposed
post Oct 30 2019, 07:15 PM
Post #45


Advanced Member
****

Group: Members
Posts: 3,430
Joined: 12-May 04
From: San Francisco
Member No.: 2,058
Region Association: None



QUOTE(Dougal Cawley @ Apr 18 2019, 10:02 AM) *


Sorry, but that is where you are wrong. Your car will handle better on a period 165HR15 or at a stretch a period 185/70VR15 than it will on a 195/65R15. That is just a fact.

Yep a wider more modern tyre will give you greater grip in a straight line than a 165R15. but in the corners it won't unless you modify the car to suit. these cars aren't set up for modern low profile square shouldered tyres unless you lower them, add adverse camber and stiffen the springs etc.

but then you aren't making them handle better quite the opposite, but you are arguably giving them greater road holding which is different. but they won't be anywhere near as nice to drive.


^ Sorry, but that's disinformation.

I've tried my 914 on so many different tires over the last 30 years that I probably couldn't list them if I tried. I've also been evaluating cars as part of my work for 25~ years on both road and track.

The idea that a 914 will handle "better" on 165R15s or 185/70R15s runs counter to so many examples from trusted sources—from Ginther and Johnson in 1970 forward through decades of autocrossers and other 914 tinkerers—that the assertions above are frankly preposterous. You can say a 914 on period 165s or 1985s will handle more "correct" or more "period correct" or "as intended" (and I'd agree), but better? I'm not so sure there, and I think an argument can easily be made that the 914 chassis was well ahead of the tire technology of its time. In other words, it was ready to employ better tires than were available at the time—and uses them even better with some very minor tweaks (dampers that most cars have since been upgraded to, lower ride height that many 914s now sit at, alignment tweaks, etc—which you do mention).

The best my 914 ever handled was probably on 205/60R15 A-008R TU tires with stiff sidewalls, rounded shoulders, and beautifully predictable breakaway. Downside was too little tire life from the R-compounds of that era—would have loved to try AVS intermediates on a 914, as they were brilliant on other cars I had, including a 911 SC. Next best was probably a 205/55R15 street tire from BFG (Comp T/A 3, iirc), which had a very rounded shoulder. One thing we will agree on is the "square shoulder" of some modern performance tires, and a set of Yoko AVS ES100s with super square shoulders weren't for me, and probably played a part in my desire for something more "age appropriate." So I switched to Vred Sprint Classic 185/70s and loved the ride and delicate steering response—but that was about it. I found the car (a lot) less fun, and ended up giving the Vreds away after 1000~ miles. I'm on Avon CR6ZZ now, and they're okay (wish I had gone softest compound rather than hardest since I'll time them out rather than wear them out), but for me the apex of period "right" and performance came in the 1980s and 1990s with 195/65R15 and 205/60R15 tires such as Yokohama's A-008 and AVSi. Next best was probably Falken's Azenis tires in similar sizing, and then some of the 205/55s.

Have been tempted to try BFG Comp T/As in 205/60R15, but can't quite get over the perception (wrong or right) that they're muscle car tires.

Tires for the 914 are either super easy or very tricky. For some, period tires like the CN36 or XZX/XWX are the only way to fly. I respect that. For others, and all-season is just fine. I respect that, too. For still others, max (or modern) performance from a 205/50, 205/55, or something like that is the way to go. I get that, too. Then there's the rest of us, who are still looking for that Goldilocks 914 tire. I've been looking for it since the demise of the A-008…
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
horizontally-opposed
post Oct 30 2019, 07:16 PM
Post #46


Advanced Member
****

Group: Members
Posts: 3,430
Joined: 12-May 04
From: San Francisco
Member No.: 2,058
Region Association: None



QUOTE(scott_in_nh @ Oct 30 2019, 01:39 PM) *

So I finally got around to mounting the tires and getting the car off of jack stands.

I haven't driven on them yet, but they have the more period correct rounded shoulder while still being a modern tire.


Those look nice! Will be very curious to hear your thoughts... (IMG:style_emoticons/default/beerchug.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mepstein
post Oct 30 2019, 07:48 PM
Post #47


914-6 GT in waiting
***************

Group: Members
Posts: 19,223
Joined: 19-September 09
From: Landenberg, PA/Wilmington, DE
Member No.: 10,825
Region Association: MidAtlantic Region



QUOTE(horizontally-opposed @ Oct 30 2019, 09:15 PM) *

QUOTE(Dougal Cawley @ Apr 18 2019, 10:02 AM) *


Sorry, but that is where you are wrong. Your car will handle better on a period 165HR15 or at a stretch a period 185/70VR15 than it will on a 195/65R15. That is just a fact.

Yep a wider more modern tyre will give you greater grip in a straight line than a 165R15. but in the corners it won't unless you modify the car to suit. these cars aren't set up for modern low profile square shouldered tyres unless you lower them, add adverse camber and stiffen the springs etc.

but then you aren't making them handle better quite the opposite, but you are arguably giving them greater road holding which is different. but they won't be anywhere near as nice to drive.


^ Sorry, but that's disinformation.

I've tried my 914 on so many different tires I couldn't list them if I tried. I've also been evaluating cars as part of my work for 25~ years on both road and track.

The idea that a 914 will handle "better" on 165R15s or 185/70R15s runs counter to so many examples from trusted sources—from Ginther and Johnson forward through decades of autocross's and other 914 tinkerers—that it's frankly preposterous. You can say it will handle more "correct" or more "period correct" or "as intended" (and I'd agree), but better? I'm not so sure there, and I think an argument can easily be made that the 914 chassis was well ahead of the tire technology of its time. In other words, it was ready to employ better tires than were available at the time—and uses them even better with some very minor tweaks (dampers that most cars have since been upgraded to, lower ride height that many 914s now sit at, alignment tweaks, etc—which you do mention).

The best my 914 ever handled was probably on 205/60R15 A-008R TU tires with stiff sidewalls, rounded shoulders, and beautifully predictable breakaway. Next best was probably 205/55R15 street tires from BFG (Comp T/A 3s, iirc). One thing we will agree on is the "square shoulder" of some modern performance tires, and a set of Yoko AVS ES100s with super square shoulders weren't for me.

I switched to Vred Sprint Classic 185/70s and loved the ride and delicate steering response but that was about it. I found the car less fun, and ended up giving the tires away after 1000~ miles. I'm on Avon CR6ZZ now, and they're okay, but for me the apex of period "right" and performance came in the 1980s and 1990s with 195/65R15 and 205/60R15 tires such as Yokohama's A-008 and AVSi. Next best was probably Falken's Azenis tires in similar sizing, and then some of the 205/55s.

Have been tempted to try BFG Comp T/As in 205/60R15, but can't quite get over the hump.

Tires for the 914 are either super easy or very tricky. For some, period tires like the CN36 or XZX/XWX are the only way to fly. For others, and all-season is just fine. For still others, max performance from a 205/50 or something like it is the way to go. Then there's the rest of us, still looking for that Goldilocks 914 tire. I've been looking for one since the demise of the A-008…


I had the same size A008's on my car mounted to 2.0 Fuchs. Awesome ride.

One day my dad followed me in his Corvette into my favorite decreasing radius off ramp. I came in at 2x the posted speed, kept my foot on the gas and never slowed down. He backed way off and told me he thought I was going to lose it at that speed. The car stuck like velcro and I had a big grin on my face when he caught up to me. I was still a teenager but I had been racing my bike for years so 4 sticky tires felt like cheating.

Back in the day, we raced on narrow 21-23mm tires. Now racers ride 25-28mm tires. They are faster on the straight and in the turns. Wider is Better.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

3 Pages V < 1 2 3
Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 19th April 2024 - 05:37 PM