Was ITB size for 2270 motor Now Single plenum 2270 |
|
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. |
|
Was ITB size for 2270 motor Now Single plenum 2270 |
cgnj |
Mar 15 2016, 03:41 PM
Post
#1
|
Senior Member Group: Members Posts: 627 Joined: 6-March 03 From: Medford, NJ Member No.: 403 Region Association: None |
I have been running 45 dells on 2270 with 34mm vents. Not sure if it was the cam choice (163/86b0, but it was much easier to drive with than with the 38/39 vents.
I was going to gut my spare dells for this project, but I think they are worth more in the box. So, for street 2270 what size motorcycle from wich bike tb should I be looking at for a first build? Thanks in advance, Carlos |
r_towle |
Mar 16 2016, 02:00 PM
Post
#2
|
Custom Member Group: Members Posts: 24,588 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
humor me please,
a 40mm weber or dell gets sized down to 34mm with the venturi. ignoring the reason, to get the fuel to atomize better, the net result is still a 34 mm hole letting air into the intake, not a 40mm hole. So, why would a 40mm hole work fine (magically) for a FI system? The air charge will now be slower. I understand the fuel atomization is no longer an issue, and its not what I am talking about here...its purely the volume and speed of the air. I know the motor will only take what it needs for air, that is reality. Would it not work fine with 34mm ITB's? I have a set of 40mm duel throttle bodies sitting here....the super long term project if i ever get up the nerve to do a programmable FI system. Also, if I have say 46mm intake valves....wouldnt I want 46mm throttle bodies? |
Lo-Fi Version | Time is now: 8th June 2024 - 09:14 PM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |