 type 4 2.7l, weber 48idf or dellorto 48 drla |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
| T H O M A S |
 Nov 27 2003, 12:02 PM
Post
#1
|
|
Senior Member  Group: Members Posts: 626 Joined: 1-August 03 From: Donaueschingen, Germany Member No.: 974 Region Association: None  |
all i need to finish my engine are the carbs
i have a 2.7l type 4 with 48/38 heads and web cam so what carbs do i use weber 48 idf or dellorto 48 drla or spend the big bugs for weber 48 ida the car will be for racing only |
   |
 
|
  |
Replies
| davep |
Nov 27 2003, 03:23 PM
Post
#2
|
|
914 Historian Group: Benefactors Posts: 5,368 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada  |
I'm no expert like Jake, but he makes sense when you consider that maximum power will occur when things are in proper balance. Intake velocity is a critical factor on the intake side. Too big a diameter, and the velocity falls off too much. The length of the intake and its shape also play a factor. That is what tuning an intake is all about. Likewise on the exhaust, tuning is very important. You have a much greater exhaust volume, at ambient pressure, than the intake volume. There are longer paths, greater pressures and interesting shapes that come into play. As Jake says, the whole package needs to be considered to properly evaluate the choices.
DaveP |
|
|
|
Posts in this topic
one914racer type 4 2.7l Nov 27 2003, 12:02 PM
Brad Roberts The new 48 IDA's all the way !!
It wi... Nov 27 2003, 01:42 PM one914racer thanks brad
48 ida it is
thomas Nov 27 2003, 01:49 PM Jake Raby Umm. I don't agree with this one 100%. I have ... Nov 27 2003, 02:16 PM Jake Raby Jake is not an expert either..... Just a well seas... Nov 27 2003, 03:37 PM Racer Chris IMHO, you would get better performance using 44IDF... Nov 28 2003, 06:04 PM
Jake Raby Exactly.... I'll second, third and fourth what... Nov 28 2003, 06:10 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 25th July 2026 - 07:04 PM |
Invision Power Board
v9.1.4 © 2026 IPS, Inc.