This is a small how-to that is designed to show you how to make a basic boost pressure tester.
1. Depending on what the size of your compressor inlet on your turbo is, you will need to get about a 2-3 inch section of silicon or rubber coupler hose. I was able to source a 3 inch diameter coupler at AutoZone picutred below. Notice that there is a black reducer ring in there so that one is enabled to connect to a 2.5 inch pipe as well. It comes with worm clamps as well.
$4.00
Next, I went to Home Depot and souced a 3 inch knock-out cap from the plumbing/PVC section.
30 Cents. Ea.
The next thing to do is to drill a 5/16 inch whole in the 3 inch knock-out cap so that the valve stem below can go thru the whole. A multi-step drill bit is perfect for this, but not that cheap.
$3.00
Since the knock-out cap isn't that thick, you may want to wrap a "few" turns of teflon tape around the base of the valve stem to get a better seal. (I couldn't source a deeper cap that fit)
The next thing I did was put the cap with the stem installed on one end of the coupler, and clamp it down tight enough so that it won't pop off:
For ease of use, I decided to install the tester on the 2.5 inch intake pipe, instead of directly on the 3 inch inlet of the GT-28RS. The black reducer ring that came with the coupler was key:
BE AWARE THAT IF YOU DO THIS, IT IS AT YOUR OWN RISK!!! I WILL NOT BE HELD LIABLE FOR ANY DAMAGES! DO NOT TURN ON YOUR CAR'S ENGINE WHILE DOING THIS!!!
1. Depending on what the size of your compressor inlet on your turbo is, you will need to get about a 2-3 inch section of silicon or rubber coupler hose. I was able to source a 3 inch diameter coupler at AutoZone picutred below. Notice that there is a black reducer ring in there so that one is enabled to connect to a 2.5 inch pipe as well. It comes with worm clamps as well.
$4.00
Next, I went to Home Depot and souced a 3 inch knock-out cap from the plumbing/PVC section.
30 Cents. Ea.
The next thing to do is to drill a 5/16 inch whole in the 3 inch knock-out cap so that the valve stem below can go thru the whole. A multi-step drill bit is perfect for this, but not that cheap.
$3.00
Since the knock-out cap isn't that thick, you may want to wrap a "few" turns of teflon tape around the base of the valve stem to get a better seal. (I couldn't source a deeper cap that fit)
The next thing I did was put the cap with the stem installed on one end of the coupler, and clamp it down tight enough so that it won't pop off:
For ease of use, I decided to install the tester on the 2.5 inch intake pipe, instead of directly on the 3 inch inlet of the GT-28RS. The black reducer ring that came with the coupler was key:
BE AWARE THAT IF YOU DO THIS, IT IS AT YOUR OWN RISK!!! I WILL NOT BE HELD LIABLE FOR ANY DAMAGES! DO NOT TURN ON YOUR CAR'S ENGINE WHILE DOING THIS!!!
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