Intake Manifold Porting
I thought you guys may find this interesting. See this thread at Civicx.com
Intake Manifold Porting https://cimg9.ibsrv.net/gimg/www.fit...4845e2fe0.jpeg You see this piece above? I vaguely remember seeing this when I removed my throttle body. The guy in that link removed this piece and actually saw his fuel trims change and the car adding more fuel at higher rpms. I left it alone not fully understanding it's purpose. Interesting stuff. His injector duty cycle jumped up from 74 to 80 (6%). Seeing this, this would've been my next modification. Just sharing! :p :vtec: https://cimg5.ibsrv.net/gimg/www.fit...1ec8a35c6.jpeg |
d'art did hack that piece off on his intake mani. he mentions it threw a cel aftwerwards, prob for the reasons of fuel trim as described above. I will link him to this thread
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I wasn't monitoring my fuel trims before I ported my intake mani so I can't 100% say one way or the other. Car is definitely peppier since I ported the manifold and the throttle body. I have yet to do my EGR block-off. That is for sure coming though. I did a coolant bypass which probably also helps. And I did the ram air mod, removing the left fog light and running air directly onto the Weapon-R air filter/intake pipe. After all that, the car is running a little richer, about 14.0 AFR at idle v. 14.7 prior to. My mileage is also slightly worse which would correspond to a jump in duty cycle. The CEL I am pretty sure was due to overtightening of the intake manifold onto the head, or possibly one of the 4 or so vacuum hose attachments getting filled up with plastic shavings. Once I cleaned and properly torqued the intake manifold all the crazy blinkys went away...
I have kind of lost interest in the Fit. I need to get back into the garage, but being in Vegas with no AC out there, she will probably remain in her current state until September. Still a good daily. It was a bit demoralizing going with the BC Racing coilovers and how brutally rough they are to drive on the street. I have softened the rear shocks which helped immensely, but I am missing my Z06 real bad as of late. Anyhew, it's a long row to hoe, I need to strip the motor and get the block over to San Dimas that should motivate me more than anything. Cheers, and best regards to you all. -d'Art |
Man, you have a Z06. I can't see anything motivating you to drive that Fit. :rotfl:
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Originally Posted by evilchargerfan
(Post 1430451)
d'art did hack that piece off on his intake mani. he mentions it threw a cel aftwerwards, prob for the reasons of fuel trim as described above. I will link him to this thread
Ktuner should be able to compensate for this, if you you had it. |
Z06
I *had* a C6Z. I totaled her on Christmas day 2017 and bought the fit the next February. Since I never got to track the Z, I track the fit lol. And I do have ktuner and it does some corrections.
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