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Smoothed Truck Intakes

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Old 05-09-2012, 04:34 PM
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Originally Posted by lemkerailroad
check out my web site in my sig

i used fiberglass and body filler to smooth it

carbide bits to grind it down

cut the bottm of a old evap and filled the cup of it with platic filler and smoothed it as well

but give it a look in my blogs as i have pics posted all the time
Thats kind of what I did. I pit a bolt in the purge valve hole than filled the front end with filler and smoothed it out.
Old 06-07-2012, 12:27 PM
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Old 06-22-2012, 11:17 AM
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so is there a better product to fill or cover these holes after removal. I want to do mine too but now boxchev has made me question the capability of the fiberglass.
Old 06-22-2012, 01:36 PM
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Custom 68, im almost done smoothing mine but i had trouble finding the proper nylon so i bought another truck intake. They r easy to find and very cheap. Then i just cut out the pieces i needed to fill the holes. I used a high temp 2 part plastic weld product to glue the pieces in.
Old 06-22-2012, 01:44 PM
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ok sounds good, I have an extra I was going to start and didnt know what I might get into. I did see another that just used that 2 part epoxy and glued a thin piece of aluminum over the top for the holes he had to cut out. It could be made to look good I bet.
I will start slow. I had a busted one and I think I threw it away it was on an engine I had then I got another so it wont hurt to start.
Old 06-22-2012, 02:21 PM
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As mentioned a page back. I was unsure on exactly what type of plastic material the intake was made of. Come to find out it is made of Nylon 66 which apparently is the same as a cooking spatula.



Cut them up to the size you need to cover any holes. Maybe 1/8 to 1/4in bigger. And use a plastic welder to melt/weld the to pieces of plastic together. Then rough up the plastic with a coarse grit sand paper anywhere from 24-40 grit should do it.

Clean and degrease the intake again. Then I was going to use a 2 part plastic epoxy filler to go over the intake. BONDO body filler will not and should not be used here. Again just like polyester fiberglass resin the polyester body filler will not stick to the plastic. Eventually all of that crap would release from the plastic over time if you do.

I ditched this project cause I bought an LS6 intake. If anyone is interested I have my intake for sale. Everything is already chopped off and grinded down for you. Just need to fill the holes and go over it with some epoxy plastic filler. I have map sensor and gaskets to toss in with it. Will also sell the epoxy and cleaner/prep to clean the epoxy before you spread it one.

This is what I have.

http://www.urethanesupply.com/Hardse...Cartridge-Kit/

http://www.urethanesupply.com/Filler...1/Filler-Prep/
Old 06-23-2012, 11:25 PM
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Why is it I never see any Trailblazer SS intakes smoothed?
Old 06-23-2012, 11:52 PM
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Not sure. Those are certainly a better looking intake.
Old 06-24-2012, 07:35 AM
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Looks like a lot of work but it might be worth it!

Any lost performance with the truck intake?
Old 06-24-2012, 10:47 AM
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LMAO.... I ditched my smoothed intake project, just put an LS1 intake on the car. I wasn't happy with the way my smoothed intake looked anyway.
Old 07-31-2012, 09:56 AM
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Originally Posted by BOXCHEV
As mentioned a page back. I was unsure on exactly what type of plastic material the intake was made of. Come to find out it is made of Nylon 66 which apparently is the same as a cooking spatula.



Cut them up to the size you need to cover any holes. Maybe 1/8 to 1/4in bigger. And use a plastic welder to melt/weld the to pieces of plastic together. Then rough up the plastic with a coarse grit sand paper anywhere from 24-40 grit should do it.

Clean and degrease the intake again. Then I was going to use a 2 part plastic epoxy filler to go over the intake. BONDO body filler will not and should not be used here. Again just like polyester fiberglass resin the polyester body filler will not stick to the plastic. Eventually all of that crap would release from the plastic over time if you do.

I ditched this project cause I bought an LS6 intake. If anyone is interested I have my intake for sale. Everything is already chopped off and grinded down for you. Just need to fill the holes and go over it with some epoxy plastic filler. I have map sensor and gaskets to toss in with it. Will also sell the epoxy and cleaner/prep to clean the epoxy before you spread it one.

This is what I have.

http://www.urethanesupply.com/Hardse...Cartridge-Kit/

http://www.urethanesupply.com/Filler...1/Filler-Prep/
Any way to identify a Nylon 66 item such as a spatula? Any stamp or distinctive marking?
Old 07-31-2012, 11:43 PM
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They simply say high heat nylon, very similar to intake plastic, but without a small amount of glass fill.
Plastic radiator tanks are also nylon 66.
Old 08-11-2012, 05:25 AM
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really good job everyone on the intakes. keep the pics coming=).
Old 10-25-2012, 10:25 PM
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Well just got done mine today
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Old 10-26-2012, 12:26 AM
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that looks ****** great.

congrats
Old 10-26-2012, 07:38 AM
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That intake turned out great
Old 10-31-2012, 07:24 AM
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My god that looks great....Do you have to leave those three post on towards the front/passenger side? Also, on those pieces that protrude out the side (no clue what there called) did you just sand them round and it didnt make a hole in the intake?
Old 10-31-2012, 07:29 AM
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Originally Posted by lebedin8654
Looks like a lot of work but it might be worth it!

Any lost performance with the truck intake?
I think truck intakes are actually better than ls1/6 anywhere under 5-6k rpm, there are dyno comparisons floating around but my desktop with the links saved is packed up right now. That red intake looks pretty sweet.
Old 10-31-2012, 10:22 AM
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Can anyone get a measurement from the crank center line to the top of the throttle body or intake on one of these. I've seen a couple diagrams showing about 20" but that's tithe top of a non-shaved intake looks like this might save you 1/2" or so.

Thanks
Old 10-31-2012, 11:22 AM
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Originally Posted by smartass12
My god that looks great....Do you have to leave those three post on towards the front/passenger side? Also, on those pieces that protrude out the side (no clue what there called) did you just sand them round and it didnt make a hole in the intake?
Those 3 posts are for the throttle body cable, so it depends if you are using DBW. Im sure you could fab something up to a differnt location for a bracket if needed. Those boobie shaped things can be cut off but, that would leave large holes that would need to be filled. I ground them round and plastic welded any holes that were left.(minor seams and one hole in the center of the middle one on the passenger side)


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