E46M3GTR said:
Interesting, so the wider wheels and offsets filled the gap created by the wide body kit? How much wider is the body over stock? BTW, I have Volk TE37 for my M3. They are limited edition speced out by Dixis race team.
Front: 18" 9.5 ET +22
Rear: 18" 10.5 ET +35
Nice sizes! BTW the M3 GTR is one of my all time favorite race cars ever since I saw that video at the ring! Isn't it amazing what 30 million dollars in go fast parts can do! Even 1st time HPDE novices need one of those! Passing Audi station wagons at the 200 foot braking zone into the chicane would ramp up the driving excitement around here!! :biggrin:
Anyways, as far as the width, I don't recall the exact spec but according to Eddie's employee Brian- per his rear view mirror, the body is apparently wider by a good bit. Practically it's more than adequate- 3-4 inches likely 6 at the widest point.
On the street I can just about fit in an extra 15mm spacer, but for the track I've taken it out due to rubbing and performance issues. Visually, the widest section of the fenders come clear straight out to the edges of the stock mirrors in the front and the wider rear bumper extends all the way out flush to the edge of the 6.3 foot rear wing. Versus the convervative stock styling that tapers off right after the edge of the frame rail, it looks pretty aggressive. Even the side skirts extend 4" inches clear out from the door.
As far as wheel position the stock late model offset is 55 mm front, 56 mm rear so with the Volks I have now that positions the rear wheel further out at 44mm per side, and the front further out by 33mm per side, without the spacer. Ideally you want to position the wheels towards the extreme ends of the vehicle, but the stock suspension geometry is designed with the wheel to be in a certain position, so their is some latitude for adjustment but you likely don't want to go too far or you can interfere with some of its other handling characteristics.
E46M3GTR said:
As for tires, I have 265/35 R18 up front and 275/35 R18 in the rear. I run a square set up to get rid of understeer. Do you run a relatively square set up with your tires? Are your wheels 18"?
Alot of tuning is just experientation, so I've tried things several different ways and if it felt better/faster than I went with it. My fronts are tucked in slightly more than the rears, which I've put some thought into. My conclusion is that it likely doesn't hurt due to weight distribution.. once you take the weight off a mid engine application like the NSX from what I see on the scales, IMO the rear likely benefits from the wider track more than the front, particularly with the engine in the stock position, if that makes any sense- simply because their is more load weight to laterally shift towards the rear of the vehicle.
For tires, I'm currently running a 255 in the front and a 305 in the rear for a street/track application. For a street tire- RE050A's seem to hold up extremely well for a combination of street/track use. I see now why they put these on the Enzo as OE. Bridgestone's engineers just rock.
Due to cost, I've never run full slicks (Michellin, Yokohama, etc... ) before, but I'm edging towards the purchase of a set of magnesium wheels with Hoosiers, or perhaps a more aggressive R Compound like the Pilot Sport Cups shortly. I'd like to run a set on the stock wheels on the S2000 and see what I like first and make my driving mistakes there. I have been told full slicks take some time to become acclimated to.
E46M3GTR said:
Where can one obtain a fresh C32B motor? And how much is it?
Unfortunately somewhat expensive and hard to come by a good one I must say. While all NSX engines as a general rule are far harder to come by than F20C's or B18C5's, etc.. the later model vehicles number far fewer in production. Not much more to say, I guess hopefully more will become available with more incidents. :biggrin:
The C32B is the 290hp 3.2 liter revision stock in the 97+ NSX. Entirely cost prohibitive new, they do come up here and there, sometimes here on prime, usually you can find a later model C32B 3.2L out of a totalled NSX in the $8500 range not including shipping, prep, or install. While it is only a 20HP difference or so on paper, even a bone stock C32B feels a lot more responsive on the race track, putting down more torque, and feeling a lot less sluggish than it's predesessor particularly coupled with the newer 6 speed. The TypeR motors are further B&B'd and most BMI drivers claim that they feel a lot stronger than spec, but a used JDM one with even moderate mileage would likely negate much of that benefit.
