anybody know anywhere that will sell 3 1/2 inch pvc pipe? I went to home depot and all they had was 3 and 4

 

i dont mean to play the part of captain obvious here, but do you have any irragation or plumbing "contractor only" kinda stores by you?
how do you plan on using the PVC, i used either 3 or 4 inch flexible clothes dryer lines it seemed like pvc would have given me too much ogena (sp??) to use. what are you plans for it.
Matt

 

not that i know of, mostly just hardware stores, right now i have it running off this duct vent stuff i found at home depot, its like aluminum and came in a 3 inch by 8 foot section that compresses down to like 4 and can stretch back out to 8, works fine but i rather use pvc for looks.

 

What did you do to keep the plastic dryer hose from collapsing? I tried it and got about 2 blocks before it sucked into an almost flat shape & cut off most airflow. Did you have to tie the open end down to something?

 

nobody makes 3 1/2" pvc. the standard sizes are 3 and 4, the only pvc in 1/2 sizes is 1 1/2". sorry

 

well that sucks ***, do you know of any way to go with 3 inch pipe and still be able to hook it up to the maf sensor pipe thing?

 

I commend your idea but using PVC pipe is a really bad idea. The heat from the will warp the PVC and it will fall out of the TB Boot and land on your pulleys causing the shavings to go all over the engine compartment and could even be sucked into the plenum. I know this because it happened to my car altho it didn't get sucked into the plenum thank goodness. If it is going on a pre-87 then go to the dealership and buy a TB to MAF Air Duct which will set you back around $23.00.

Stock:


With PVC Intake that fell out:


With the 88+ Factory Elbow (now)

 

I used exaust tubing on mine. Comes in a lot of different sizes and can take the heat.

 

info from my piping engineering book.



and being a structure,process piping engineer draftsman, lets

look over the info PVC has also a high melt factor of about 450*

(varys w/ material) so it does make an excellent choice 4 budget

seekers,and more lightweight than metal tubing.

 

And I'm a plumber and trust me when I say it more than likely will not hold up. I'm not talking about dripping like candle wax but it will not hold it's shape and you are risking the chance of it falling out of the TB Boot and causing some serious problems. Me and 3.1 eyecandy both tried using PVC and had the same problem (refer to post https://www.thirdgen.org/techbb2/sho...hlight=ram+air. As you seen in that post there were a few that had used PVC and had no problems but why take the chance on ****ing up your engine. CPVC will withstand hotter temperatures than PVC that is why PVC is not used on the hot water lines only CPVC.

SUM: Buy the Factory Elbow