Stock AFM???
Stock AFM???
05-21-2002, 12:50 AM
#2
Nordschleife Master
I just realized how restricive a K&N cone is! Mine actually Collapsed! I'm glad I dont have to mess with a Vane meter. Check out PRo Flow! <a href="http://www.modernperformanceinc.com" target="_blank">www.modernperformanceinc.com</a>
05-21-2002, 01:28 AM
#3
Racer
Join Date: Jan 2002
Location: Worcester, MA
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good call. :-) i hear people talk about MAF's so much on this forum it's ad nauseum. i've been researching this lately, but havent been able to test this out yet with a flowbench or air compressor. pretty much, it appears that a liner increase in the spring preload will allow for a linear increase mapped onto the air running through the system (makes sense). so, double the preload, double the maximum air; this should be appropriatly calculated according to the injectors you are using. if you're using double the injector size, use double the spring preload; PLEASE REALIZE i havent been able to try any of this yet, so make any modifications at your own risk. and tell me how it goes. 
anyone here know what spring equations would apply for preload vs tension in the travel of a spring over a fixed range?
anyone here know what spring equations would apply for preload vs tension in the travel of a spring over a fixed range?
05-21-2002, 02:00 PM
#4
Intermediate
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Thanks for the info. The stock spring is pretty close to the maximum preload already.
Luke> I don't see any porsche at that site. Any suggestions?
Thanks,
Bill
Luke> I don't see any porsche at that site. Any suggestions?
Thanks,
Bill
05-21-2002, 03:03 PM
#5
Instructor
Join Date: May 2001
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[quote]Originally posted by Luke:
<strong>I just realized how restricive a K&N cone is! Mine actually Collapsed!</strong><hr></blockquote>
Luke,
Really pleased that you got everything running properly! I knew you could do it
If your K&N collapsed, what are you using instead? Another K&N? Stock airbox?
<strong>I just realized how restricive a K&N cone is! Mine actually Collapsed!</strong><hr></blockquote>
Luke,
Really pleased that you got everything running properly! I knew you could do it
If your K&N collapsed, what are you using instead? Another K&N? Stock airbox?
05-21-2002, 03:37 PM
#6
Cruisin'
Join Date: May 2002
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[quote] anyone here know what spring equations would apply for preload vs tension in the travel of a spring over a fixed range? <hr></blockquote>
Spring equations and calculators here: <a href="http://www.efunda.com/designstandards/springs/spring_introduction.cfm" target="_blank">http://www.efunda.com/designstandards/springs/spring_introduction.cfm</a>
Spring equations and calculators here: <a href="http://www.efunda.com/designstandards/springs/spring_introduction.cfm" target="_blank">http://www.efunda.com/designstandards/springs/spring_introduction.cfm</a>
05-21-2002, 07:36 PM
#7
Nordschleife Master
[quote]Originally posted by Gary:
<strong>
Luke,
Really pleased that you got everything running properly! I knew you could do it
If your K&N collapsed, what are you using instead? Another K&N? Stock airbox?</strong><hr></blockquote>
Im using a 3in' cone. THe walls of it are permanently Concave about 25 degrees
( i wonder how much it flexes under load? )
<strong>
Luke,
Really pleased that you got everything running properly! I knew you could do it
If your K&N collapsed, what are you using instead? Another K&N? Stock airbox?</strong><hr></blockquote>
Im using a 3in' cone. THe walls of it are permanently Concave about 25 degrees
( i wonder how much it flexes under load? )