Recent Topics
Parking brake shoes
by ARB1977
10/23/14 06:09 AM
Thesis on lubricating oil systems -
by Shannow
10/23/14 06:07 AM
Oil change on oil burner
by Lubener
10/23/14 05:24 AM
Looking For Economical Vehicle
by 13Tacoma
10/23/14 01:54 AM
M/T Fluid Change in '06 Corolla
by BrandonVA
10/23/14 01:10 AM
Biggest AC Delco/Fram Ultra for GM LSA?
by GM4LIFE
10/23/14 12:10 AM
using M1 High Mileage... having doubts, switch?
by Legend11
10/22/14 11:55 PM
What is white mask symbol on violet back ground
by jorton
10/22/14 11:39 PM
Took the Amsoil plunge today.
by 340_Magnum
10/22/14 11:32 PM
2013 Silverado 5.3 lifter noise
by gofasterrrr
10/22/14 10:12 PM
Installed my last PureOne today.
by Hollow
10/22/14 09:55 PM
2014 silverado oil issue
by Jschreffler81
10/22/14 09:14 PM
Newest Members
340_Magnum, aselinger, extrabigjon, monron, Jschreffler81
51672 Registered Users
Who's Online
57 registered (A_Harman, Black, aquariuscsm, BigCahuna, AITG, 2009Edge, 7 invisible), 868 Guests and 179 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
51672 Members
64 Forums
221092 Topics
3494926 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG

Page 4 of 4 < 1 2 3 4
Topic Options
#3392663 - 06/09/14 12:16 AM Re: Why Aren't Headers Standard Equipment? [Re: rslifkin]
TiredTrucker Offline


Registered: 01/04/08
Posts: 1008
Loc: Kellogg, IA
Originally Posted By: rslifkin


It does throw a little more heat into the engine bay


Thank God for header wrap, eh?
_________________________
Hey there, VA, what do ya say? How many vets did you kill today?

Top
#3393094 - 06/09/14 02:36 PM Re: Why Aren't Headers Standard Equipment? [Re: JerryBob]
PandaBear Offline


Registered: 08/05/02
Posts: 12471
Loc: Silicon Valley
Why? Because it is not a good use of the R&D and production money. You can get much more out of the same cost if your car is designed with better engine (i.e. variable valve timing or variable intake opening) than different tubing length / width.

Also a much bigger header only increase top end HP at the expense of bottom / mid range, so why bother?

Mazda use it for their skyactiv motor because of their piston and injector design that can benefit more from it. It is not as useful for the more common / old school engine design.
_________________________
"You keep asking questions PandaBear and you'll end up a vegetarian like my wife" - Camu Mahubah

Top
Page 4 of 4 < 1 2 3 4