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Old 09-07-2011, 01:39 AM
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PlasticBoob PlasticBoob is offline
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Location: Long Beach, CA
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Post Prissy cold air intake parts list


Excuse the engine bay wiring mess, this is not how I plan to keep it.

Okay, it's really late so I have to kind of rush through this. Hopefully I'll cover everything. I went with a 4" system because I figured some day a hi-performance MPFI 401 might need it, but in retrospect I think 3" would have been fine. I will list both 3" and 4" part numbers. Pricey? Yes! Worth it? Definitely, to me anyway!

And to answer some questions from this thread, my Jeep did not have the coolant and washer reservoirs when I bought it. Seeing as the battery is on the other side, this is the only way I could get a true cold air intake without going with a snorkel or cutting into the fender.

The Plenum
3": It seems we have a problem here. I can't seem to find the most important piece anywhere. Maybe they stopped producing it when they discontinued the black crinkle coated 4" plenum?
4": Spectre 9843 (out of production? try: Spectre 9849 )
This goes on the carb. Most descriptions say it only fits 4bbl carbs or TBI units.

Memory Flex Ducting
3": Spectre 8741
4": Spectre 9751

Air filter and housing
3": Spectre 9833
4": Spectre 9831

Cold air mounting flange
3": Spectre 8148
4": Spectre 9148

You will need to drill the radiator support with a hole saw or find some other way to open it up.




Miscellaneous stuff

Straight tubes
I'm not sure if I used a 4" or 6" long tube, I *think* the 4" will work but you may want to measure yourself before ordering.

3" diameter, 4" long: Spectre 9409
3" diameter, 6" long: Spectre 9419

4" diameter, 4" long: Spectre 9709
4" diameter, 6" long: Spectre 9719

Couplers
Two required.
3": Spectre 8771
4": Spectre 9771

I found the extremely large clamps and mounting plates for the air filter box at Home Depot. Note that if you have EFI, you will either need to drill the aluminum tube or the plenum for the IAT sensor. Datalogs show a HUGE decrease in intake air temps, from something like 150-180* down to around ambient, and the performance increase when the engine is warm (and especially on hot days) is like night and day. Idling on a hot day brings the temps up to around 130, compared with 180 or so without a cold air intake. As soon as the Jeep starts rolling, they decrease back down to ambient.
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Last edited by PlasticBoob : 01-30-2019 at 01:19 AM.
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Old 09-07-2011, 07:36 PM
Mavawreck Mavawreck is offline
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I really like the end product, I'm wondering if a '80s cadillac TBI hat could be substituted to save some scratch.
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Old 09-07-2011, 08:17 PM
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Rockwell_B1 Rockwell_B1 is offline
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Well this is getting added to my to-do list, if I have a 4bl that is.
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Old 09-07-2011, 09:17 PM
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rmorit01 rmorit01 is offline
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Location: Marshfield, WI
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I found I could assemble your system for just a tad under $150.00 at streetside auto - It looks like this would really work well for my TBI system -

Thanks for the details -

Here is a link to the shopping cart I created - http://www.streetsideauto.com/shoppi...562&quantity=1

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Last edited by rmorit01 : 09-07-2011 at 09:31 PM.
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Old 09-08-2011, 05:29 AM
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The Colonel The Colonel is offline
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Looks good Rob.

Really neat seeing the before and after difference it made using the IAT sensor.
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Old 09-08-2011, 08:53 AM
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JohnnyJ JohnnyJ is offline
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Location: Southeast Michigan
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You can get a really cheap TBI plenum (with tube and junky air cleaner) for the 88 Chevy on fle-bay. The plenum is pretty reasonable. Oh did I mention cheap?
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Old 09-08-2011, 11:25 AM
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rreed rreed is offline
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Yeah, I was thinking that's totally awesome (dude) until I saw the $99 price on just the plenum. I've been wanting to do this for a long time but would have to find a much cheaper source for parts.

Awesome write-up though!!
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Old 09-08-2011, 08:40 PM
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Wagn Man Wagn Man is offline
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Excellant, I will be in need of such info. I'd hate to cover up my Edelbrock MPFI with the clunky stock unit.
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