Pennzoil Q&A

Click here to participate in the Pennzoil Q&A

Recent Topics
cleaning stainless bowls
by bmwjohn
29 minutes 9 seconds ago
Please suggest oil/filter for a 2001 Taurus
by AshleyQuick
Today at 12:05 PM
Walmart Pennzoil Platinum + Fram Ultra Oil Filter
by Leonardo629
Today at 11:51 AM
Time Warner Cable customers, got a question.
by Rat407
Today at 11:41 AM
Dog Bite
by expat
Today at 11:20 AM
Puppies are the best
by barkingspider
Today at 10:49 AM
Carb Kit Question
by John_Conrad
Today at 10:12 AM
Getting a passport
by InfmousCornholio
Today at 09:21 AM
What kind of a Porsche is this? And other car?
by InfmousCornholio
Today at 09:11 AM
Rock Auto Discount Code
by Doog
Today at 08:26 AM
Brakes are rough and making noise
by Spetz
Today at 07:47 AM
Open End Crowfoot Torque
by artbuc
Today at 06:58 AM
Newest Members
muktasir, PgPilot, zeng, paolimanx, slepsnys
55225 Registered Users
Who's Online
98 registered (artificialist, aquariuscsm, AshleyQuick, 2010_FX4, Astro14, asiancivicmaniac, 11 invisible), 1630 Guests and 158 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
55225 Members
66 Forums
236767 Topics
3815580 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: 1738
Loc: Kellogg, IA
Originally Posted By: rslifkin


It does throw a little more heat into the engine bay


Thank God for header wrap, eh?
_________________________
Burn it down.

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


Registered: 08/05/02
Posts: 12780
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