It's all Mary Pozzi's fault......

[CarlC]

She made me do it.

Why settle for a 275/40/17 when a 285 is just a little bit bigger? It's 10lbs of tire in a 10lb hole. There is zero room for error.

Thanks for the heads-up Mary on the Kumho Ecsta XS. It's a great tire.

https://static1.pt-content.com/images/noimg.gif

[Fesler built]

how do you like the ride on those, we had a guy looking into getting them but we have never used them. thanks

[rlovell383]

Are you running stock wheelwells in front? Thanks.

Randy

[Mkelcy]

She made me do it.

Why settle for a 275/40/17 when a 285 is just a little bit bigger? It's 10lbs of tire in a 10lb hole. There is zero room for error.

Thanks for the heads-up Mary on the Kumho Ecsta XS. It's a great tire.

All 4 corners? That's stuffing 11 pounds of tire in a 10 pound hole. Did you take out more steering?

[Steve1968LS2]

how do you like the ride on those, we had a guy looking into getting them but we have never used them. thanks


Ride was good.. no drama. At 180 the grip was excellent.

About the only neg, and it's minor, is that they are a little on the heavier side, but that makes for a nice rigid sidewall.

[Steve1968LS2]

She made me do it.

Why settle for a 275/40/17 when a 285 is just a little bit bigger? It's 10lbs of tire in a 10lb hole. There is zero room for error.

Thanks for the heads-up Mary on the Kumho Ecsta XS. It's a great tire.



Hey, could you shoot me the high res of that shot?

[email protected]

Thanks!

Glad you like the tires :)

[CarlC]

They ride much better than the previous NT555RII, but that was a dedicated autocross tire. I agree with Steve, for a 180 tire, they are very nice.

Stock front and rear wheelwells. The aft lips are rolled from 10-2 o'clock.

Hey Mike. All four. No more steering dialed out, but the caster had to be reduced to +5* and the camber increased to -1.25*. No biggie on the camber since I was already running -1*. It's a very full wheelwell.

[Rhino]

Looking at your site, I see you're running a 9.5" wheel. Is that with the stock subframe? If so, bravo! :twothumbs

[buickfunnycar.com]

Car couldn't look any finer....awesome stance.:smoke:

[CarlC]

Stock subframe and spindle.

Thanks John!

[David Pozzi]

Wow! I didn't think it was possible!

[mpozzi]

They ride much better than the previous NT555RII, but that was a dedicated autocross tire. I agree with Steve, for a 180 tire, they are very nice.

Stock front and rear wheelwells. The aft lips are rolled from 10-2 o'clock.

Hey Mike. All four. No more steering dialed out, but the caster had to be reduced to +5* and the camber increased to -1.25*. No biggie on the camber since I was already running -1*. It's a very full wheelwell.

So ... does that mean we'll see your bad self at Willow next month??? Hope so.

You're going to love these tires and I'm thinking of also running them on the Shelby. Locally, we've got an autocross class for Stock Class with street tires and the Kumho XS fits the bill perfectly. A set would last over a year, most likely two, and sure beats the hell out of spending $1300 twice a year for the Hoosier A6's.

Cheers,
Mary Pozzi

[zman1969]

She made me do it.

Why settle for a 275/40/17 when a 285 is just a little bit bigger? It's 10lbs of tire in a 10lb hole. There is zero room for error.

Thanks for the heads-up Mary on the Kumho Ecsta XS. It's a great tire.

https://static1.pt-content.com/images/noimg.gif
Carl, that is a sweet ride! what B/S wheels are they? running tubular UCA? - last dumb question did you ever try them on a 69? I was hoping for a 275 on a 9" on my 69 bird

[Chad-1stGen]

Damnit Carl you and your car's balanced front and rear rubber always gets me drooling at the thought.

[CarlC]

Wow! I didn't think it was possible!

Me too. I was very, very, very concerned (did I mentioned I was worried?) since not only is the tire slightly wider, it's also taller due to the basic size, has a much deeper tread / not shaved as much as the 275, and it has a less-rounded outer corner. I have not had it on Angeles Crest yet, so I'll find out soon if there are any major deflection/rubbing problems.

Then again, I'll find out on May 2-3 at SOWS. Yes Mary, I'll be there, the check has already been sent, and the boys have no games that weekend. I'll likely camp out in the truck at the track with you guys starting Fri. night if all goes well.

The rear end has had Ford ends put on, but I believe the overall width is the same. The effective BS is 5-1/2" (wheel is 5-3/4" + 1/4" spacer.) The front is 5-3/4" BS.

When I say the front wheelwell is full, it really is FULL! For example, on the passenger side when turning right, the outside of the tire is within 1/8" of hitting the aft-lower wheelwell. When turning left the outside of the tire is within 1/4" of hitting the front of the wheelwell. Inside of the wheelwell at 12 o'clock (1968) there is a hump on the outboard edge. With -1-1/2* camber it barely clears this bump. The ride height is about 3/8" too low right now, so with an increase in ride height and -1-1/2* static the clearance should be better under bump. I may end up massaging the hump a little bit someday, but if I was building the car again I'd smooth this out before paint.

[CarlC]

Carl, that is a sweet ride! what B/S wheels are they? running tubular UCA? - last dumb question did you ever try them on a 69? I was hoping for a 275 on a 9" on my 69 bird

Tubular arms. There are details on my website.

Have not tried them on a '69. I think Lance-W has them, but not sure.

[Steve1968LS2]

If it makes you feel better Carl it's all MY fault that Mary is getting new wheels.. lol

[CarlC]

Instead of the Circle of Trust, it's the Circle of Spend.

[tom_a]

Carl,

Very classy car but mean looking at the same time. Hope to see it someday.

[CarlC]

Thanks Tom.

Check out in the Non-Racing Events forum for our upcoming April 19 Cruise the Crest. Come on out if you can, even if you don't have a PT car. Just hitch a ride with someone up and down.

[JRouche]

Tires look great. And it sounds like you have the track experts doing all the proving work for you, SWEET!!..

Just curious, doesnt anyone use the goodyear F1s on the track? I have them in 285/40/17 and yeah, they are a heavy tire too. According to tire rack 28lbs, the kumho at 30lbs. Im thinking the gy is more of a summer street tire. Too hard of a compound for serious racing??

Whats goofy is TR shows a section width of 8.2" for the kumho and 11.3" for the goodyear. That cant be right. I know the gy is a lil more than 11", I measured it. They must be mis-quoting kumho for the section width. So, I was just wondering if anyone has taken the gy on the track. Maybe the cost of rubber shredding is a factor Im sure. JR

http://www.tirerack.com/tires/CompareTires.jsp?sortValue=1&filterType=all&displayResults=10&compare=true&compareList=0%2C1&RunFlat=All&goWhere=%252Ftires%252FCompare1.jsp&sortCode=&width=285%2F&ratio=40&diameter=17&startIndex=0

[Damn True]

If it makes you feel better Carl it's all MY fault that Mary is getting new wheels.. lol


Oh good. I p-shopped them onto the rendering for my car and didn't love it. I was going to call you on Monday.

[Rhino]

The rear end has had Ford ends put on, but I believe the overall width is the same. The effective BS is 5-1/2" (wheel is 5-3/4" + 1/4" spacer.) The front is 5-3/4" BS.


What are you doing for brakes on the ford ends? I'm planning an 8.8 build with 9" ford ends and would really like to use the 4th Gen F-body brakes I already have.

[chicane67]

Instead of the Circle of Trust, it's the Circle of Spend.

Man... I wish I could throw my hat into that ring. But for so long now... I have had to live vicariously though a few of you. At least some good ideas have been guinea pigged and sorted.

:idea: Carl... I guess you can now call it the Tom, David and Mary spending plan. :idea:

[Nessumsar]

Carl, your car is just so clean!

Love the super big rubbers all around. I am going to get a set of the Kumhos in the nearish future. Hopefully 275s all around.

By the looks of them on Steve and Mary's rides, the handle very well for a street tire of a 180tw rating.

[CarlC]

What are you doing for brakes on the ford ends? I'm planning an 8.8 build with 9" ford ends and would really like to use the 4th Gen F-body brakes I already have.

LT1 4th gen. Though I should have, I did not have the face of the bracket where the bearing seats machined so that the gap between the bracket and flange was smaller. I think mine is somehere around 1/8". No other mod's besides that. However, the Ford ends have the standard Chevy backing plate bolt pattern.

[CarlC]

Carl... I guess you can now call it the Tom, David and Mary spending plan. :idea:

Mary has a long way to go to catch up to you and Dave.

[Rick Dorion]

Carl, what's the contact patch increase?

Thanks for paving the way! Pun intended.

[CarlC]

Good question Rick. I don't know. It's a big freakin' tire.

[Damn True]

Do we have a landscape contractor in the circle? I need to get the front/back yards done before I can spend any real coin (cage, trans, engine, paint) on my car.

[Steve1968LS2]

Man... I wish I could throw my hat into that ring. But for so long now... I have had to live vicariously though a few of you. At least some good ideas have been guinea pigged and sorted.

:idea: Carl... I guess you can now call it the Tom, David and Mary spending plan. :idea:

Yea, I'm still on Ramen due to you guys....... :spam:

[6'9"Witha69]

Yea, I'm still on Ramen due to you guys....... :spam:
:bsjerk:



:poke:

[CarlC]

Do we have a landscape contractor in the circle? I need to get the front/back yards done before I can spend any real coin (cage, trans, engine, paint) on my car.

The Home Depot on Foothill is surrounded by them every day.

[Damn True]

The Home Depot on Foothill is surrounded by them every day.

That's not how I roll.

[6'9"Witha69]

The Home Depot on Foothill is surrounded by them every day.:rotfl:

[Damn True]

Laugh it up Nick. You are living in the future capital of Aztlan. I prefer to avoid being part of the problem.

[Damn True]

285's will fit? Sweet!

Again, many thanks to my R&D department.

[Bow Tie 67]

Carl,

Have there been any issues with unwanted rubbing to this point?

Matt

[devdally]

Do we have a landscape contractor in the circle? I need to get the front/back yards done before I can spend any real coin (cage, trans, engine, paint) on my car.

Sounds like my wife

[BonzoHansen]

Instead of the Circle of Trust, it's the Circle of Spend.

LOL.

how the hell is your geocities site still alive??

[LM7_67]

this gives me hope of fitting 275s without issue on my '67