Light weight parts vs heavy parts

stock eliminator · 01-12-2010, 09:40 PM

I was wondering what e.t. difference there is between light vs. heavy parts. For example stock pistons are heavy but CP or other brands are extremely light. Has anyone ran heavy then put in light ones and seen e.t. differance??

Kenny Wigington · 01-12-2010, 09:55 PM

You may not get much for answers to that, publicly, maybe some in a PM though....

stock eliminator · 01-12-2010, 10:26 PM

I figured it would be a touchy subject

Ed Fernandez · 01-12-2010, 10:30 PM

Check out [email]cheating101@$creweveryoneel$e.com

Adger Smith · 01-13-2010, 12:25 AM

Hey Ed,
that link doesn't work for me... :~)
must be a few too may $$$'S in it.. ;~)

james schaechter · 01-13-2010, 05:55 AM

This isn't actually controversial.

There are specs on piston types and rods for weights,etc. In general, If it moves, lighter is better. I don't know if anyone could actually tell you how much better it was, but the piston example is a good one. The replacement stuff has a lot of benefits besides weight too. Better quality all of the way around. I would say that if you are building a stocker engine or any quality race engine, the core components need to be the highest quality and the lightest you can legally run and afford.

Even in drivetrain, every real serious effort points to lighter stuff. Alum shocks, lighter axles, lighter spools and gear, transmission parts, lighter clutches, etc. I am sure that there is someone out there that can point to an example to the contrary, but if you walk around the pits and look at cars, talk to racers, you will see what I mean.

mannymen · 01-13-2010, 02:00 PM

From light to heavy also works. It's all trial and error on the dyno

01-12-2010, 09:40 PM	#1
stock eliminator Junior Member Join Date: Apr 2008 Location: Kearney Nebraska Posts: 24 Likes: 0 Liked 0 Times in 0 Posts	Light weight parts vs heavy parts I was wondering what e.t. difference there is between light vs. heavy parts. For example stock pistons are heavy but CP or other brands are extremely light. Has anyone ran heavy then put in light ones and seen e.t. differance??

01-12-2010, 09:55 PM	#2
Kenny Wigington Senior Member Join Date: Sep 2004 Location: Cumming,Ga. USA Posts: 967 Likes: 36 Liked 60 Times in 12 Posts	Re: Light weight parts vs heavy parts You may not get much for answers to that, publicly, maybe some in a PM though.... __________________ 2894 STK Last edited by Kenny Wigington; 01-13-2010 at 03:32 PM.

01-12-2010, 10:26 PM	#3
stock eliminator Junior Member Join Date: Apr 2008 Location: Kearney Nebraska Posts: 24 Likes: 0 Liked 0 Times in 0 Posts	Re: Light weight parts vs heavy parts I figured it would be a touchy subject

01-12-2010, 10:30 PM	#4
Ed Fernandez Veteran Member Join Date: Nov 2001 Location: NOO JOISEY nexta NOO YAWK Posts: 5,879 Likes: 38 Liked 100 Times in 45 Posts	Re: Light weight parts vs heavy parts Check out [email]cheating101@$creweveryoneel$e.com __________________ Former NHRA #1945 Former IHRA #1945 T/SA

01-13-2010, 12:25 AM	#5
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,446 Likes: 575 Liked 880 Times in 311 Posts	Re: Light weight parts vs heavy parts Hey Ed, that link doesn't work for me... :~) must be a few too may $$$'S in it.. ;~) __________________ Adger Smith (Former SS)

01-13-2010, 05:55 AM	#6
james schaechter VIP Member Join Date: Dec 2004 Location: Cumming GA Posts: 1,987 Likes: 1,279 Liked 1,428 Times in 296 Posts	Re: Light weight parts vs heavy parts This isn't actually controversial. There are specs on piston types and rods for weights,etc. In general, If it moves, lighter is better. I don't know if anyone could actually tell you how much better it was, but the piston example is a good one. The replacement stuff has a lot of benefits besides weight too. Better quality all of the way around. I would say that if you are building a stocker engine or any quality race engine, the core components need to be the highest quality and the lightest you can legally run and afford. Even in drivetrain, every real serious effort points to lighter stuff. Alum shocks, lighter axles, lighter spools and gear, transmission parts, lighter clutches, etc. I am sure that there is someone out there that can point to an example to the contrary, but if you walk around the pits and look at cars, talk to racers, you will see what I mean. __________________ James Schaechter 3163 STK

01-13-2010, 02:00 PM	#7
mannymen Senior Member Join Date: Apr 2003 Posts: 728 Likes: 5 Liked 13 Times in 7 Posts	Re: Light weight parts vs heavy parts From light to heavy also works. It's all trial and error on the dyno __________________ N/A