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-   -   Power to weight ratio (http://www.the370z.com/nissan-370z-general-discussions/47980-power-weight-ratio.html)

wstar 01-12-2012 01:51 PM

I loved the PS2's on my last car. I just picked up the Conti DW's this time around because they're cheaper to buy/replace and still perform reasonably well. The PSS's, I assume, are even better than the PS2 were, but I've never driven them.

dAvenue 01-12-2012 01:54 PM

Quote:

Originally Posted by wstar (Post 1487171)
I loved the PS2's on my last car. I just picked up the Conti DW's this time around because they're cheaper to buy/replace and still perform reasonably well. The PSS's, I assume, are even better than the PS2 were, but I've never driven them.

OH! So the PS2 is not the same as PSS? I thought PS2 was an alias for PSS (P*S^2).

That's MY BAD.:facepalm:

pyrrhus17 01-12-2012 02:17 PM

Any preferred light weight pulleys ? I was looking at NST also did you do the install yourself ? I here the berk CBE save on weight and gives you a + in the HP dept aswell is this true

wstar 01-12-2012 03:34 PM

The FI exhaust also saves weight, if you're looking at light exhausts. Pulleys are controversial on the risk factor, lots of opinions on whether it's a good or bad idea. They do help a little though ;)

TerribleONE 01-12-2012 05:00 PM

+1 for the FI exhaust!

NickBaragona 01-12-2012 06:51 PM

Zenclosures emailed me back and said their 10" box is around 35lbs. So after installing that, I'm good to remove the spare tire I suppose.

tranceformer 01-12-2012 07:00 PM

Quote:

Originally Posted by CBRich (Post 1486906)
Yank that heavy flywheel outta there while you're at. BIG bang for the buck.

:iagree:
that was my first mod, love it.

'unsprung' weight is what I would concentrate on. and the side benefit is the 'sleeper' effect, no loud noises to attract unwanted attention.

flywheel
2pc rotors
crank pulley
wheels

Removing the spare tire saves a bit of weight.

cossie1600 01-12-2012 09:21 PM

A FI system is $5K and can get you a minimum of 50HP at the very very basic level. The Michelins, a set of wheels and a flywheel cost nearly $3K and can't come anything close to what 50HP can do for you. Where do you guys learn your math, the Rick Perry campaign?

Oh yeah, go buy a base model if you care so much about the weight. It is nearly 100lbs lighter than the sport

pyrrhus17 01-12-2012 10:53 PM

i forgot to ask what are the favorite two piece rotors you guys use

wstar 01-13-2012 12:25 AM

Well, FI is undoubtedly the king of pwr:weight for the buck, no denying that. Some of us don't want to go FI though, it's a big leap.

tranceformer 01-13-2012 06:15 AM

Quote:

Originally Posted by pyrrhus17 (Post 1488086)
i forgot to ask what are the favorite two piece rotors you guys use

I have DBA's up front, they're a little bit cheaper than racingbrake rotors. But DBA only makes front rotors (as far as i know) and Racingbrake makes front AND rear 2pc rotors.

b1adesofcha0s 01-13-2012 08:24 AM

Quote:

Originally Posted by pyrrhus17 (Post 1487203)
Any preferred light weight pulleys ? I was looking at NST also did you do the install yourself ? I here the berk CBE save on weight and gives you a + in the HP dept aswell is this true

Actually the Berk CBE is heavier than stock. If you want to save weight with a CBE your best bet would be the Fast Intentions or a single exit exhaust.

pyrrhus17 01-13-2012 09:07 AM

Sorry meant HFC by berk DOH!:icon14:

theDreamer 01-13-2012 09:48 AM

Quote:

Originally Posted by cossie1600 (Post 1487974)
A FI system is $5K and can get you a minimum of 50HP at the very very basic level. The Michelins, a set of wheels and a flywheel cost nearly $3K and can't come anything close to what 50HP can do for you. Where do you guys learn your math, the Rick Perry campaign?

Oh yeah, go buy a base model if you care so much about the weight. It is nearly 100lbs lighter than the sport

You are just using the logic of one item though.
Power/weight is great from FI, but wheel/tire (and flywheel I guess) gives you less weight, which leads to better power and more grip, better balance, etc.

Yes, this thread is originally about power to weight, but you also have to calculate into other factors when balancing a car the moment you throw a monetary value onto what you are getting.

NickBaragona 01-13-2012 10:03 AM

Stupid question, but what is an FI system? When I see FI Fast Intentions is what comes to mind lol.


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