S2000 Forced Induction S2000 Turbocharging and S2000 supercharging, for that extra kick.

FI weight reduction affect?

Thread Tools
 
Old Jul 19, 2010 | 10:21 AM
  #1  
08s2000CRbackinblack's Avatar
Thread Starter
Registered User
 
Joined: Apr 2008
Posts: 1,189
Likes: 0
Default FI weight reduction affect?

please accept or reject this theory:

i have 426 to the wheel, say roughly double the power over stock. would a 15lb. weight reduction in my car feel like a 30lb. reduction in a stock car????

just wondering because i just weighed my tonneau cover at 11lb. and i figured if i took all the brackets off that'd be about another 3 or 4 lbs. its purely cosmetic and serves no purpose unless the hardtop is off and i am contemplating taking this sucker and and trying to sell it for fund preformance. having the CR, there arent too many items i can strip without ruining the DD ability and comfort it has now.

ANY INPUT IS GREATLY APPRECIATED
Reply
Old Jul 19, 2010 | 10:28 AM
  #2  
siadam's Avatar
Registered User
 
Joined: May 2008
Posts: 3,791
Likes: 1
From: Around
Default

Originally Posted by 08s2000CRbackinblack,Jul 19 2010, 10:21 AM
please accept or reject this theory:

i have 426 to the wheel, say roughly double the power over stock. would a 15lb. weight reduction in my car feel like a 30lb. reduction in a stock car????

just wondering because i just weighed my tonneau cover at 11lb. and i figured if i took all the brackets off that'd be about another 3 or 4 lbs. its purely cosmetic and serves no purpose unless the hardtop is off and i am contemplating taking this sucker and and trying to sell it for fund preformance. having the CR, there arent too many items i can strip without ruining the DD ability and comfort it has now.

ANY INPUT IS GREATLY APPRECIATED
Interesting theory, but I'm thinking it's the same. 15lbs is 15lbs regardless of the whp you are making. The rule of thumb is for each 100lb's lost, you gain .1 in the 1/4.

Not set in stone, but a general idea.

Reminds me of the old saying, which weighs more, 50lbs of rock, or 50lbs of feathers?
Reply
Old Jul 19, 2010 | 10:30 AM
  #3  
vader1's Avatar
Member (Premium)
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2003
Posts: 11,949
Likes: 474
From: MAHT-O-MEDI
Default

Let's say your car is 2900 pounds and 426hp at the wheels, that is 6.8 pounds per wheel horsepower. Every loss of seven pounds will feel like one extra hp.

Will you notice a loss of 15 lbs or about the addition of 2.2 whp? Probably not.
Reply
Old Jul 19, 2010 | 10:59 AM
  #4  
teamvalorracing's Avatar
Registered User
 
Joined: Jan 2008
Posts: 1,967
Likes: 0
From: Lakeland, Florida
Default

^ dead on bro.

weight lost is weight lost my friend.

reminds me of a hilarious dude i used to go to "test/tune" night at the track with.

the damn dude wouldnt eat all day and would minimally drink enough water so that when he got to the track, he could "have that advantage". lmao

he used to ask me to hold his wallet and would take his car key off his key ring too. gotta keep that weight down!

he was nuts!lol but when youre 17 in a stripped out hatch w/gsr swap, i guess you gotta get what you can get.
Reply
Old Jul 19, 2010 | 11:41 AM
  #5  
08s2000CRbackinblack's Avatar
Thread Starter
Registered User
 
Joined: Apr 2008
Posts: 1,189
Likes: 0
Default

placebo affect FTL
Reply
Old Jul 19, 2010 | 11:51 AM
  #6  
spectacle's Avatar
20 Year Member
 
Joined: Sep 2004
Posts: 4,894
Likes: 9
From: Tampa, FL
Default

Worry about dumb stuff like weight when you're racing for money. Don't beat yourself up about it otherwise
Reply
Old Jul 19, 2010 | 12:04 PM
  #7  
08s2000CRbackinblack's Avatar
Thread Starter
Registered User
 
Joined: Apr 2008
Posts: 1,189
Likes: 0
Default

yea i just read the thread in the racing and comp. forums and saw some of the weights people are getting their s2k's down to
Reply

Trending Topics

Old Jul 19, 2010 | 03:00 PM
  #8  
Spoolin's Avatar
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2003
Posts: 6,507
Likes: 51
From: Sellersburg, IN
Default

Every 100 lbs lost is typically 10 whp gained.
Reply
Old Jul 19, 2010 | 04:37 PM
  #9  
joefish1298's Avatar
Registered User
 
Joined: May 2005
Posts: 1,515
Likes: 0
From: Melbourne
Default

The more power you have, the less the effect of removing weight will have on the power to weight ratio.

Example:

1000kg car with 100kW engine. 10kg per kW. Remove 100 kg, power to weight ratio is now 9kg per kW, an improvement of 1kg per kW.

1000kg car with 200kW engine (twice as powerful). 5kg per kW. Remove 100 kg, power to weight ratio is now 4.5kg per kW, an improvement of only 0.5 kg per kW.

So, removing 15lb from your 426WHP car will feel like removing 7.5lb from a 213WHP (close to stock) car
Reply
Old Jul 19, 2010 | 07:27 PM
  #10  
JuicedS2K's Avatar
 
Joined: Dec 2008
Posts: 1,619
Likes: 0
From: New Jersey
Default

It's based solely on percentages. Taking 50lbs away from 210 hp is not the same as taking 50lbs away from 450 hp.
Reply



All times are GMT -8. The time now is 03:58 AM.