Re: new rims!

From: Michael Maskalans (mike-lists@tepidcola.com)
Date: Thu Nov 13 2003 - 02:37:47 EST


On Wednesday, November 12, 2003, at 11:02 PM, Josh Battles wrote:

> Looks mighty sharp there Mike! I'm Sooooooo jealous.

thanks, everybody! I kinda like this whole 'getting props' thing =D

> I haven't been able to find anything I really really like.

I was all set to go with a set of Dodge 16*8s when these popped up on
Ebay. I didn't even know this rim had ever been made in our dumb bolt
pattern, but it didn't have the too-wide drawback of the R/T rim, and
even though I was a bit unsure of how it was going to look, I figured
I'd give it a shot. at $365 shipped for the rims I didn't have much to
loose.
>
> Did the larger wheels/tires make a noticable difference in handling of
> the
> truck?

too soon to tell. I've put about 10 miles on it: from the shop back to
campus, and I had a mess of tires in the bed. it'll take a bit to
separate alignment differences from wheel and tire diffs too. consider:

       LF | RF |
act. | before | act | before | acceptable
.7вк | .6вк [camber] .5вк | -1.5вк | -.1вк - .9вк
3.6вк | 3.5вк [caster] 3.6вк | 2.9вк | 2.8вк - 3.8вк
.04" | -.25" [ toe ] .03" | .01" | .01" - .06"

               act. | before | acceptable
cross camber .2вк | 2.1вк | -.5вк - .5вк
cross caster .1вк | .7вк | -.5вк - .5вк
cross SAI -.7вк | -2.3вк |
total toe .06" | -.25вк | .03" - .13"

also, we're busy gearing up for snow now, so I'm not sure when I'll get
to find out their real performance. but these are stock R/T sized
tires on rims an inch narrower, FWIW - so Dodge thinks they're the
optimal size? heh.

proving that the numbers on the sidewall mean little to nothing between
tire brands. *ALWAYS* go to the manufacturer's site and get the real
dimensions of the tire - the wheel calculator is useful only if the
numbers mean something. which they don't.

> Also, how did you correct for the very different OD of these new
> larger meats?

I haven't yet, but the SuperChips makes it dead simple. I'll either
grab a tape measure for a real dimension, and start with that, or start
with the claimed 31" diameter, and then adjust based on speedo to GPS
comparison. it allows you to tweak by 1/4" diameter increments - I was
about .2MPH off at 70 with the 30" Yokos (which actually measure about
28)

> Is it pretty straightforward to do through the superchips
> thing? I've been dying to try it with mine, but my speedometer is
> pretty
> accurate already.

yeah, you just go into custom options. I think there are three - speed
limiter, rev limiter and tire size. tweak up and down with the arrows.
I need to remember to do that, and roll back to the 87 program since
gas keeps not getting cheaper, and I'm putting a LOT of miles on next
week (Rochester to Boston to Rochester to Minneapolis to Windsor to
Rochester in 10 days)

--
Michael Maskalans             <http://mike.tepidcola.com/>
ClassTech Consultant  -  ITS Printer Tech  -  ITS Lab Tech
mobile.612.618.4652  campus.585.274.2246  fax.954.697.0487



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