stock injector sizes
Thread Starter
Newbie
Joined: Oct 2002
Posts: 1
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From: houston
stock injector sizes
could some one tell me what size injectors 2nd gen use?
n/a and turbo models. If I read the injectors right they are 330cc for the n/a's. I think the turbo's are 550's???
thanks guys,
albert
n/a and turbo models. If I read the injectors right they are 330cc for the n/a's. I think the turbo's are 550's???
thanks guys,
albert
Rotorhead
Joined: Feb 2001
Posts: 9,136
Likes: 39
From: Charlottesville, Virginia, USA
There are two componensts of an injector flow rating:
1) The flow rate
2) The fuel pressure at which this rate occurs
Stock injectors:
NA: 444cc/min @ 34.1psi, 472cc/min @ 39.8psi
TII: 532cc/min @ 34.1psi, 458cc/min @ 39.8psi
If you average these, you will get the slang flow rate given in the previous post. Obviously, lower fuel pressure will yield a lower flow rate, and higher fuel pressure will yield a higher flow rate. Not all fuel injectors are rated at the same pressure, so be sure to do your math.
http://www.rceng.com/technical.htm
1) The flow rate
2) The fuel pressure at which this rate occurs
Stock injectors:
NA: 444cc/min @ 34.1psi, 472cc/min @ 39.8psi
TII: 532cc/min @ 34.1psi, 458cc/min @ 39.8psi
If you average these, you will get the slang flow rate given in the previous post. Obviously, lower fuel pressure will yield a lower flow rate, and higher fuel pressure will yield a higher flow rate. Not all fuel injectors are rated at the same pressure, so be sure to do your math.
http://www.rceng.com/technical.htm
Rotary Freak
Joined: Oct 2001
Posts: 1,515
Likes: 1
From: Atlanta, GA
This is some good information but I think I see a typo.
Why would the TII have 458cc/min at 40psi?? I think that should be 558cc. Typo.
NA: 444cc/min @ 34.1psi, 472cc/min @ 39.8psi
TII: 532cc/min @ 34.1psi, 458cc/min @ 39.8psi
TII: 532cc/min @ 34.1psi, 458cc/min @ 39.8psi
Why would the TII have 458cc/min at 40psi?? I think that should be 558cc. Typo.
Rotorhead
Joined: Feb 2001
Posts: 9,136
Likes: 39
From: Charlottesville, Virginia, USA
Originally posted by SaabGuy
This is some good information but I think I see a typo.
Why would the TII have 458cc/min at 40psi?? I think that should be 558cc. Typo.
This is some good information but I think I see a typo.
Why would the TII have 458cc/min at 40psi?? I think that should be 558cc. Typo.
Also, (532cc + 568cc) / 2 = 550cc, which is the average flow rate normally assiciated with the TII injectors.
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