**Updated to Mc Rat style**

Hey Guys, got around to doing the ziptie mod this morning on my car. Snapped some pics and put together a tutorial.
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DOH!

Just came across this thread that McRat posted. I like the way he used the stock plastic tray to secure the filter a little better than the way I did it.

Check it out here:
http://www.z06vette.com/forums/showt...threadid=29243
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If someone can host it I have a MUCH more detailed version in WORD format. Please let me know if you can host. It is only 670KB.


Step1: Begin by removing the air filter

Step 2: Now remove the air filter lid by pulling the lid in the direction of the engine to release the rubber bushings holding the lid into place. Remove the lid & the lid straps. (Above)

Step 3: Now place the filter into the filter tray and re-install the filter. Be sure that the filter makes a good seal with the lower airbox assy.



Step 4: Put two zip ties together to make 1 LONG ziptie. Be sure to only slide the male end of the ziptie into the female end 3-4 clicks & trim the excess off of the male end of the tie.

Step 5: Wrap the long ziptie around the back of the lower air box assy and over the top of the lid tray and lid. Guide the ziptie to come out inside of the groove cut into the air filter tray. Repeat for the other side.



Step 6: Pull the ziptie tight and make sure that the filter is held securely in place.

You are done!


DISCLAIMER: The author of this tutorial does not in any way take responsibility for damages that could be caused during or after this modification. This setup is not recommended for cars that are driven in heavy rain.

**This document was written while performing the ziptie modification on a 2003 corvette Z06, there may be differences between models and model years of the C5.

ENJOY THE NEW AIR & 5-15 more RWHP!


[Modified by niphilli2, 9:58 AM 1/7/2004]

 

With the newer lid, the miniscule gains (I have dyno proven on 435 RWHP vehicle) are not worth the significant tradeoffs in sealing or water shedding. A modification without regard for real gains or practicality in my opinion...

 

I did the same thing, did a similar write-up and guess what bought a trap from Jim ... :lol:

 

Wow! I am shocked to hear this. I have read many cases where this mod picked up between 1&2 MPH at the track. (10-20 HP)

When you dynoed the car did you give the CPU time to re-learn ? :confused:


[Modified by niphilli2, 8:02 PM 1/6/2004]

 

Hahaha, great minds think alike. This is just a bandaid for me until spring. I dont drive the car enough in the winter to justify 500 for a TRAP, but in the spring I think I can justify it ;) .

 

The PCM does not need to relearn for a small change in air flow the C5 configuration uses a MAF. The older speed-density systems may need a little learning. I have done numerous dynos with air/fuel data, and EFILive acquisition. I often drive with EFI live collecting data as well.

As a testament to the effectivenes of the PCM/MAF system, I run 435 RWHP with NO fuel correction and zero to minimal fuel trims.

 

I am familliar with all of the tools you are talking about. I have ATAP, and use my friends version of EFI live pretty often. I am not sure about what you are saying about "the C5 using a MAF" though.

Anyway, the C5 PCM monitors Oxygen Sensor readings (along with a bazillion other things). These readings show up as B1S1, B1S2, B2S1,&B2S2 in your diagnostic equipment. Adding more air to the mixture with an intake leans out the mixture of air and fuel (decreases O2 readings which are recorded in MilliVolts). The computer recognises that the car is lean through these O2 readings and adds fuel to the mix to prevent pinging/detonation/Cat damage. C5s tend to go VERY rich when adding an aftermarket intake, and a little rich doing the ziptie mod. This is shown in high negative value fuel trims.

When adding an aftermarket intake or doing the Ziptie mod it is common to have pinging for a short time immediately after installation which is recognized as Knock Retard by the PCM which pulls timing to correct. Then the car will go very rich for a while, finally it will settle in a rich condition. It usually takes a few miles of driving for it to settle out. When installing an intake it is a good idea to go easy on the car for a few miles to let the CPU recognise the increased air flow.

Whoever did your tuning must have done a great job. You have a very good balance between air and fuel to see 0 fuel trims. My stock Z06 did not have 0 fuel trims.
:cheers:




[Modified by niphilli2, 10:09 PM 1/6/2004]