Rims

Jul. 18th, 2006 03:08 pm
octothorpe: (porn)
[personal profile] octothorpe
No, not *that*. I'm talking about wheels. My TSX was born yesterday, and it's slowly swimming from Japan.

The new K series engines have a 3-axis (3D) ECU, and as such, are a "learning type" ECU, rather than a static map. This means that there is a break-in period that goes a tad beyond a normal 500 mile break-in period, to about 3k miles, so I am not going to add any engine mods until after about 5k.

This leaves me with suspension mods, my personal favourite! I know I'm going to go with the Koni Yellow/Eiback Pro Kit combo as I have on my Accord, but I've *got* to ditch the stock rollers. the car is *heavy*, so any weight I can take off (without too much sacrifice), I will. However, aesthetics weighs in heavily as well. I'm down to these two rims:

The OZ Racing Superturismo GT, weighing in at 20.7lbs


Or,

The OZ Racing Ultraleggera, weighing in at 17.6 lbs.


I'd probably go with a 17", as an 18" rim would weigh more, and there would be more rotational mass. I am however, going to go with 235R45 rubber, which is going to add a bit to the overall weight, but should improve traction, keeping the power on the road.

The stock rims are 25lbs each, so both choices offer serious weight savings, however, I am concerned that the Ultraleggera may be *too* light to deal with the ass-tastic roads we have in CT. Bent rims suck.

I'm also looking at wind resistance. Aerodynamically, the TSX is one of the best non-exotic production cars on the road. Wheels are a factor in that. I believe the Superturismo GTs may be better in that regard, although I am not sure I'll be going so fast for long periods of time for it to matter. I do Solo 1 and Solo 2 stuff mostly, and I don't usually go above 60mph. "Real" track days, however, I can easily go over 100mph, and that may start having an effect.

So what do you think?

Date: 2006-07-18 07:53 pm (UTC)
From: [identity profile] notdefined.livejournal.com
#1 but only because they appeal to me.

Date: 2006-07-18 07:56 pm (UTC)
From: [identity profile] squalidbear.livejournal.com
I vote for the OZ Racing Ultraleggera rims. Sexy and light.

What are the wheel bolts made of, an aluminum/magnesium alloy? When I had a Porsche 911, I took off one of the wheels and the five wheel bolts weighed about the same as one steel bolt from my Prelude. Another component in the drive to reduce unsprung weight and rotational mass...

Check out my expertise and fear me!

Date: 2006-07-18 08:11 pm (UTC)
From: [identity profile] rogueboi.livejournal.com
Option #2 are prettier, but they do have something of that "breaks real easy" look to them...

Why must pretty things always break so easily?

*sigh*

Date: 2006-07-19 01:03 am (UTC)
From: [identity profile] beastbriskett.livejournal.com
The Ultras. I like the paired, tapering spokes.
They're bitchin'!

Date: 2006-07-19 01:47 am (UTC)
From: [identity profile] greatbearmd.livejournal.com
I'd go with the Ultraleggeras, since I was going to get a version of them for the MINI before settling on the SSR Competitions in 17x7.5 and about 13 pounds a pop.

I doubt either wheel will factor much into spoiling the aerodynamics of the car. I prefer an open wheel for maximum brake cooling. The vane spoke design of these will fan plenty of air through your brakes.

Date: 2006-07-19 04:54 am (UTC)
From: [identity profile] hossinseattle.livejournal.com
I think you're really in to your car.

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