Turbo Inlet Duct fabrication & BOVs

Pete_89T2 · 03-21-2014, 03:08 PM

For anyone interested, here's a picture of what my TID ended up looking like. I'm liking the results

I retained the stock recirculating CBV and the ports for the S5 boost control line and crankcase vent. Starting from the turbo, it's a 3" silicone coupler that connects to a 45* AL mandrel bend. The pipe was a total of 1 foot long, with equal length legs, beaded at both ends. What I had to do was cut about 3" off the turbo side leg. Then I picked up some 3/4" OD AL tubing to make the nipple for the CBV connection, and picked up two 1/4 NPT aluminum bungs and two barb fittings for the 2 hoses. Found a local shop that welded the bungs & pipe nipple to the 45* bend where I indicated, and he also beaded the nipple & cut end of the pipe for me - not bad for $50. Note to self: Learn to weld! To connect the AFM to the AL TID pipe, and get it at an angle that is horizontal, I had a 3" ID 45* silicone bend that I cut most of the legs off on both sides, which gave me about another 20* of bend and took care of the connection on both ends. In retrospect, a hump-hose coupler might be better, but this seems to work fine. I re-purposed the bracket on the bottom of the stock air filter box, and built up the rest of the AFM bracket with some 1" X 1/8" thick AL stock. The new air filter is a K&N #RC-70040, which fits the AFM perfectly, and has more surface area than the stock panel filter, yet is small enough to squeeze into the tight space available.

RETed · 03-21-2014, 05:42 PM

Man, overkill on the hardware!

Those t-bolt clamps are kinda overkill for that section which really only sees vacuum.

Glad you're happy with it!

-Ted

Pete_89T2 · 03-21-2014, 08:35 PM

Yeah the T-bolt clamps are overkill, but wasn't too pricey. I tried re-purposing the clamps from the stock TID, but they were a tad too large in diameter to clamp down tight enough. I picked up the T-bolt clamps @ $2.60 each from siliconeintakes.com which is where I got the mandrel bent AL pipe, coupler & silicone bends.

03-21-2014, 08:35 PM	#3
Pete_89T2 Lifetime Rotorhead Join Date: Apr 2010 Location: Elkton, MD Posts: 874 Rep Power: 16	Yeah the T-bolt clamps are overkill, but wasn't too pricey. I tried re-purposing the clamps from the stock TID, but they were a tad too large in diameter to clamp down tight enough. I picked up the T-bolt clamps @ $2.60 each from siliconeintakes.com which is where I got the mandrel bent AL pipe, coupler & silicone bends.