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-   -   project 265/45/16 CUMho, lower, bumpsteer, corner balance, align (http://forums.pelicanparts.com/911-930-turbo-super-charging-forum/476824-project-265-45-16-cumho-lower-bumpsteer-corner-balance-align.html)

911st 05-28-2009 07:50 PM

Mark, Sorry you already noted the stats earlyer.

Great set up.

equality72521 05-28-2009 08:10 PM

Quote:

Originally Posted by 911st (Post 4690107)
Mark,

What rim widths and are you running any spacers?

Are you the guy with the 10" Fuchs?

Keith in Sacramento

They are OEM 911 8" Fuchs in the front with 21mm spacers and custom 10" Gary Stratton Fuchs in the rear with 1/4" spacers.

krasuskyp 05-28-2009 09:16 PM

Oh hot dayum - sooooo wicked beyond cool. Tx for shooting / posting the pics, made my night (just walked inside from a total -s-hi-tshow of a Disco II rear pad / rotor abortion - wtf!?). I'll get mine back Mon / Tue and shoot some pics as well. I def. want to see a full on further away look too.

Niiiiiiiiice on the stickiness - and - hilarious on the undercoat. Be interesting to compare our shots with your 8/10's and my 7/9's.

That looks so damn badass it's not even funny. Amen on them looking period-correct.... classsssic.

Tx again for putting those up - will get me thru my weakend sans mine. Guards / Fuchs even!

equality72521 05-29-2009 04:57 AM

LOL, glad I could help make your day.

krasuskyp 06-02-2009 10:26 PM

The tires are thus far pretty damn cool. I'm tempted to never armor all them as the dry arse pencil eraser look is pretty tempting to rock. They're beefy and blocky and gooey and awesome as of yet. Way pscyhed by this yes. Pressures set to 29F/36R, and bump steer kit is a god send - makes the car driveable again after my lowering it last summer.

The rear bars wouldn't come out / cooperate apparently (sans more $ toward that effort), so the rear was lowered as much as could without their removal - I'd have liked a hair more down but ah well I'll 'suffer'.

Harold - here's my stats from today's completed tire mount, alignment, lowering, corner balance:

-0.7* / -0.9* front camber
-1.3* / -1.4* rear camber
0* front toe
.14* / .25* rear toe

corner weights, considering 1/2 tank fuel and 180lb. driver:

607 / 580 (F)
1001 / 926 (R)

fender lip heights:

24.5" / 25" (F)
25.5" / 25.78" (R)

HTH

Here's some pics:
http://forums.pelicanparts.com/uploa...1244005952.jpg
http://forums.pelicanparts.com/uploa...1244006672.jpg
http://forums.pelicanparts.com/uploa...1244006060.jpg
http://forums.pelicanparts.com/uploa...1244006154.jpg

more pics here if yer bored:

http://picasaweb.google.com/pkrasusky/930Tires#

911st 06-03-2009 07:27 AM

My Kumhos showed up today.

Tires look good on the 7&9's. I was worried they would look a bit like the were cantilevered but dose not seem to be the case.

I am a Little supplied as to the size of the two voids or channels in the center of the tire. That is 1" of the tire that dose not have rubber. The Dunlop Star Specs have a better ratio of rubber to voids.

Still, these tires are reported to out stick most or all the other tires in its class per Grass Roots Motorsports mag.

:)

Miguel Antonett 06-03-2009 07:33 AM

Those gaps will minimize aquaplaning.

willtel 06-03-2009 07:34 AM

Quote:

Originally Posted by krasuskyp (Post 4699365)
The tires are thus far pretty damn cool. I'm tempted to never armor all them as the dry arse pencil eraser look is pretty tempting to rock. They're beefy and blocky and gooey and awesome as of yet. Way pscyhed by this yes. Pressures set to 29F/36R, and bump steer kit is a god send - makes the car driveable again after my lowering it last summer.

Those are factory size Fuchs aren't they?

I desperately need new tires but I freakin' loath Kumho, I've owned 4 of them and replaced 3 early due to failure. Decisions, decisions...

Miguel Antonett 06-03-2009 07:36 AM

Try the Sumis, lots of value for the price...

krasuskyp 06-03-2009 07:59 AM

Quote:

Originally Posted by willtel (Post 4699792)
Those are factory size Fuchs aren't they?

I desperately need new tires but I freakin' loath Kumho, I've owned 4 of them and replaced 3 early due to failure. Decisions, decisions...

Yeppers - OE 7/9's

I'd give CUMho another chance. I ran 2 sets of 255/40/17Y MX's on my urS6 and loved those, and those were no where near the tire these things appear to be. No early failures, and, I beat the bag out of those poor sluts. Heck, the 1st set I scored gratis off my Evo XIII bud who'd DE'd the bejeezus out of them prior, and they still served me well.

911st (darn it whatz yer name! 8-))... I was slightly worried too about them rolling past the lip too far, but alas that isn't the case. Many more pics in my picasa link above that should alleviate any of your concerns. And those groves are great - my MX's sucked in wet above 80 big time, and there's soooo much block to the rest of the tire it'll be a non-issue. Plus like you said, GRM knows better certainly.

The tires really beef out the car in a much needed way, I'm psyched to be able to keep the OE Fuchs while finally being able to get a 'real' footprint under there. Nice steamroller profile from behind (well, relative - certainly not a 275 or 315 heh heh but still), and the sidewalls def give it the old school look.

They're fookin' TALL tho - stood my schmoke'd 245 Fuzion ZRi next to the 265 on the car before I left the shop and damn them online calculators aren't even close. Heck the Fuzion merely comes up to the top of the CUMho script! Yikes! I'll bet my speedo is majorly schwacked now - tho - not like I use the damn thing I just go as the road / car / situation deem fit heh heh. I'll have to use my GPS and see how far off it is. Tho prior it always seemed off anyway - I've always joked Porsche calibrates its speedos not in Miles Per Hour but Miles Per PORSCHE, as they always seem to read waaaay higher than what it feels.

Anywhoooo...

911st 06-03-2009 08:20 AM

I was running 225 that are 24.9" tall so the 25.4 is not that off. Side be side I can not find te differance but they are not mounted and inflated.

I only use these for nice days and track so watter is not a worry. Might trade them in on VictoRacers.

gumba 06-03-2009 08:20 AM

Paul,
Thanks for the specs. I would watch for uneven tire wear on the front. With .5d neg camber I'm getting 1/16" more wear on the outside of the tire after 4K miles. This is a 215/15 on a 8" rim. It looks like the stock camber plate is hitting the curvature of the body.

DDDD 06-04-2009 09:17 AM

Paul,

Your car looks to have a good stance. I would like to know how those tires hold up to your turbopalozza shenanigans.

Shadetree930 06-04-2009 10:12 AM

<----- is mounting Hankooks (Ventus R-S2 Z212 ) onto his car tomorrow. Am I going to be happy?

krasuskyp 06-04-2009 11:06 AM

Are you going to be happy? They're R compounds - 'nuff said 8-).

Thanks Dave - I'd like a hair more drop in the rear. Front's are fine. But it's def. acceptable, and, the pics exacerbate the height some as I always shoot car pics squated waaaaaaay down "on line" with the car. From 6' up, it looks pretty cool:

http://forums.pelicanparts.com/uploa...1244138692.jpg

I'll report back how they fare after turobPALOOZA shenanigans, fersure.

Shadetree930 06-04-2009 04:18 PM

Quote:

Originally Posted by krasuskyp (Post 4702415)
Are you going to be happy? They're R compounds - 'nuff said 8-).

True ... but any experience out there? Are Hankooks the way to go? Am I going to like them?

Miguel Antonett 06-05-2009 05:37 AM

Sorry, but I could not resist when talking squatting... This shot is from last Fall at WOT at the Dragon. See you soon!!!!


http://forums.pelicanparts.com/uploa...1244205463.jpg

krasuskyp 06-05-2009 06:13 AM

Niiiiiiiiice Miguel! But now you've gone 'n dun it... seeing that brown beaut again now will only lead to insult, mockery, and lynching should you show up in 3wks in the Cayman heh heh heh 8-). I gotta see that thing! You have a '79 IIRC, but also have ET phone home on rear lid (CHMSL)? Interesting.

Got some more WOT time (is there any other time?) in mine laaate last night, roads to mesself. Noting the 18mm taller tire does have a decided gearing effect - car seems longer leg'd... but also slightly more lag'y as result. Buttery smooth tho in power delivery and handling and ride. And with the alignment the car no longer feels like it's trying to axemurder me with the click of every 10th of mile. Muuuuuuuuch better. The 265s provide just the footprint to effectively keep the rears from roasting off now too which is a score, makes launches a no-wheel-hop affair heh heh.

Here's the tire calc I use - says my speedo should actually be reading lower than what I'm doing? SOOOOO feels the opposite of that from seat 'o pants, hmmm:

http://www.wheelsmaster.com/rt_specs.jsp?item=Wheel-Tire%20size%20comparer&showRim1=1&showTire1=1&sw1= 245&ar1=45&bd1=16&rd1=16&rw1=9.0&et1=-10&showRim2=1&showTire2=1&sw2=265&ar2=45&bd2=16&rd 2=16&rw2=9.0&et2=-10&text1=&text2=

willtel 03-22-2010 06:17 AM

I finally got my tires installed over the weekend and I can't say I'm not disappointed in them. The fronts rub like hell and they flat spot when cold making the ride like a paint shaker until they warm up.

Looks like I'm still tire shopping and IMO Kumhos still suck.

gumba 03-22-2010 06:51 AM

I run the Goodyear F1 GS-D3 on the street, and in the rain at our time trial events. For the track I find the Hoosiers (on our race car) to be the most consistent. I found the Kuhmo's V700 and BFG R-1 to be inconsistent as far as tire wear on the track. I thought the Goodyears had pretty good grip in a torrential down pour at one of our track events at Infineon. It was raining so hard I was the only one out there in a run group that usually has 20-25 cars.


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