tomsn16

PLEASE NOTE.......these weight calculations were for our 350Z,05 Track Model.....not the new 370Z. Point being the published curb weight for the 370Z may be on the light side as it was for our '05 Track. Only the scales know the truth.

tomsn16

I agree....without some setup work and R tires the 370Z won't perform very well in autoX terms. Corner exit rear wheel spin should be the biggest problem...if not,this could be a very different Z. Anxious to hear the findings.

ULLLOSE

iTrader: (1)

Any idea on what fuel level to run the later car at? Have you seen BS weights for the later car?

tomsn16

No one has put a 370 on scales yet,that we know of. Based on our '05 car my guess is you will find the 370 is closer to 3300 than 3200( curb).
If possible I would try 1/4 tank fuel or less first followed by full tank. If only one,I would test and weigh(for curb comparison) at full tank just to get a feel for level of rear wheel spin....again, only R tires + setup will provide what we really need to know.

ULLLOSE

iTrader: (1)

I meant the late 350s.... 2008 maybe?

chiketkd

iTrader: (5)

My one reservation about the 370Z being in B-stock, even with the vlsd rear diff, is the fact that the sport package will come with 19x9 front and 19x10 rear wheels.

Per the Tirerack, Hoosier makes a 295/30ZR19 & 315/30ZR19 A6. The recommneded wheel width range for the 295 is 10" and up, and 11" and up for the 315. Hoosiers can be made to fit well on narrower than recommended wheels, and a 370Z on 295's front, 315's rear might not get the corner exit wheelspin we're anticipating. It does appear to come with even wider fenders than the 350Z that should accomodate these wide tires...

ULLLOSE

iTrader: (1)

The late 350 and Nismo could run a 285-18 front with the a big 19" rear. Should the RX-8 be the only car that is allowed to win? How about in 2010 when CS cars are beating us, will you still be concerned about the 370?

I would feel much better about the low end 370, base with sport, being in BS than a $$$$ limited Nismo 350.

chiketkd

iTrader: (5)

Agreed - but those are getting to be corvette sizes.

TractionCircle

Jason, FWIW I ran a full tank to quell corner exit wheelspin. Much less than that, in my current setup, and wheelspin starts costing me time. At HPT, I rolled across at 3397, that was with me in it (196lbs).

My setup:
Enkei RPF wheels, 285 Kuhmo's, Koni Yellows, Aftermarket Exhaust (20lbs lighter), no spare, CT-1 front sway bar, full tank.

Hope this helps,

JR

ULLLOSE

iTrader: (1)

Yes they are.... Has the late 350Z with big tires shown to be better than the 05' Track - I don't think so. So even if the 370 is better than the REV-up (or what ever they call the 07-08) it may not be better than a 05'.

I think one very important stat, particularly to solo, you are overlooking is width. The 370s body is 1.1" wider and rear track is 2.2" wider than the 08', it is a fat car.

btw a C5 Z06 rear track, 62.1", 370 62.8".

chiketkd

iTrader: (5)

Very good point - I was overlooking that fact. That **** end on the 370Z is wide!!!

tomsn16

All our Z weight data:

3038 1/4 tank, '03 Enthusiast, Thompson, Petersburg Pro scales
3151 ? , '03 Track, Piccone, HPT scales
3165 3/4 tank, '05 Track,Thompson, HPT
3204 1/2 tank, '05 Track, Austin,HPT
3290 ? , '07 Enthusiast,Cavanaugh,HPT
3201 Full tank, '07 Track,Ruggles,HPT

No 2008 data

ULLLOSE

iTrader: (1)

A few hours late, and the wrong model. They sent over a base/manual, no sport. Good thinking on their part, not much point in trying 0-60 (or anything else) with an open diff.

tomsn16

That's a bummer. Did you get a chance to weigh the base?

ULLLOSE

iTrader: (1)

2009 base weight:

Per the B Stock 350Z drivers instructions, 3/4 tank of fuel, no spare, jack or tools.

3246lbs
56% front

LF 886 RF 939
LR 737 RR 685

I did not level the scales, since it was not a Sport I was not going to waste a lot of time on it.

Weight with spare/tools/jack 3289.

Hard to say for sure the weight difference between the base with small wheels/tires and a Sport outfitted with fat Rs.

Front camber, LF -.7, RF -.9.

If it does not start to rain we are going to do some acceleration test, 20-60mph, should give us some idea of how it will pull out of a turn. 0-60 and 60-0 will be worthless with the small tires and no LSD, so we will skip that.

chiketkd

iTrader: (5)

Wow - that's not much front camber. Does the car look as wide as a C5 vette in person? It looks smaller in pics for some reason.

Zoom4Three

Jason -

Was the camber measured with the standard B-stock driver weight (2 Disimo's) on-board ?

Thanks for the info-

Chris H

ULLLOSE

iTrader: (1)

All weights and camber measurements are without driver.

tomsn16

Looks like another 3200 lb Z in race trim.The front camber is typical of all Z's so far,all should be less than 1 degree.
If it's a better autoX performer than it's brethren looks like it will be the result of wider rims and more power.

altiain

iTrader: (3)

Just out of curiosity - does the Nismo 350Z get any additional camber? I seem to recall that it sits measurably lower than a stock 350Z.

PedalFaster

You've got it backwards. Fatter tires means more grip which means more body roll which means more inside wheel lift which means more wheelspin, not less.

chiketkd

iTrader: (5)

A really big FSB will help reduce that or eliminte it altogether.

tomsn16

Forgot about the shorter wheelbase....could help the car rotate and make it fast. The 370's 100 HP advantage over the RX8 is a nice starting point.

chiketkd

iTrader: (5)

I see the wheels in your head are turning Jim...

tomsn16

No no no........we are very happy with the 8. It took us almost 2 years to sort out our '05Z .So if there is a better BS car than the RX8 someone else will have to prove it.But like I said, a 100 HP advantage is a good start.