Power to weight ratio

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

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.

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

Yank that heavy flywheel outta there while you're at. BIG bang for the buck.

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

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

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!

theDreamer · 01-13-2012, 09:48 AM

Quote:

Originally Posted by cossie1600

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.

01-12-2012, 01:51 PM	#16 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3594	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. __________________ 7AT Track Car! Journal thread / Car setup details

01-12-2012, 02:17 PM	#18 (permalink)
pyrrhus17 Base Member Join Date: Jun 2011 Location: colorado Posts: 90 Drives: xterra Rep Power: 13	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 Last edited by pyrrhus17; 01-12-2012 at 02:27 PM.

01-12-2012, 03:34 PM	#19 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3594	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 __________________ 7AT Track Car! Journal thread / Car setup details

01-12-2012, 05:00 PM	#20 (permalink)
TerribleONE A True Z Fanatic Join Date: Jan 2009 Location: Socal Posts: 10,203 Drives: WOT Rep Power: 5850	+1 for the FI exhaust! __________________ 638WHP 541WTQ @ 13.5PSI Build thread

01-12-2012, 09:21 PM	#23 (permalink)
cossie1600 A True Z Fanatic Join Date: Jun 2009 Location: californee way Posts: 5,380 Drives: 370, Leaf Rep Power: 29	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 Last edited by cossie1600; 01-12-2012 at 09:39 PM.

01-12-2012, 06:51 PM	#21 (permalink)
NickBaragona Enthusiast Member Join Date: Jun 2011 Location: Maryland Posts: 353 Drives: 40th 370Z Rep Power: 13	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.

01-12-2012, 10:53 PM	#24 (permalink)
pyrrhus17 Base Member Join Date: Jun 2011 Location: colorado Posts: 90 Drives: xterra Rep Power: 13	i forgot to ask what are the favorite two piece rotors you guys use

01-13-2012, 12:25 AM	#25 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3594	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. __________________ 7AT Track Car! Journal thread / Car setup details

01-13-2012, 09:07 AM	#28 (permalink)
pyrrhus17 Base Member Join Date: Jun 2011 Location: colorado Posts: 90 Drives: xterra Rep Power: 13	Sorry meant HFC by berk DOH!

01-13-2012, 10:03 AM	#30 (permalink)
NickBaragona Enthusiast Member Join Date: Jun 2011 Location: Maryland Posts: 353 Drives: 40th 370Z Rep Power: 13	Stupid question, but what is an FI system? When I see FI Fast Intentions is what comes to mind lol.

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