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The Silicone Hose, i used, is actually Turbo Rated Hose,
It is Fuel proof, High Temp, High Pressure/Vacuum rated, and Stiff, yet semi Flexible It will NOT Collapse.
Only 20" of #1 is needed,
I think you can start by cutting 4ea., 5" long pieces for each Hose/tube, then cut them down from there.
To get the correct length of each hose, I fitted each hose on in the position first, then measured.
Then cut off a 1/4"length at a time and fitted then all back on.
Then measured again.
Repeat, Repeat, till you have the correct length.
All Hoses were the same length on mine.
Last Hose leave it cut about a 1/4"-3/8" longer than the rest or you think it needs to be, this will be the hardest Hose/tube to put in.
Put Vaseline on the 4ea O-ring's on the bottom of your OEM manifolds, that mount to the heads, to hold them to the Oem Manifolds, this will keep them from being damaged/pinched,
As you need to concentrate on other things, rather than fighting with o-rings
You will have 2 hose, across from the engine from each other, that will be easy, and line up with the manifold.
the Next one will need to be flexed a little more to get it into place,
Last hose is the most difficult, But not hard to do, to flex it into place, this is where 3 or 4 hands is helpful
The extra length will be a very good thing. you can cut it shorter, later, if needed.
I only used 20" of #1
I only used about 8" total of #3
1. approx 20"-24" inches Napa belts/hose Fleet flex Gold #630, this is 1-1/4" ID I used this for the intake runners, it has some flex but you still have to work it to make it fit. It is firm so i think it will not collapse. less than $40.00
2. 1.250 OD x 1.145 ID x .055 wall steel tube this is the clamp backer support, i cut 8 of these Approx. 3/4"- long (One of these goes into each end of the above 1-1/4" hose) I had to buy a 5 feet min. cost me $10.00
This is a Must as when you clamp this will keep the hose from collapsing and provide a strong clamping support.
3. Approx 8"-12" Napa Belts/Hose Fleet flex Gold #632 this is 1-1/2" ID, I used this for a seal over the VW Plenum and clamped over the 1-1/4 #630 hose. $20.00
4. 8ea #24 Clamps from Napa $.75-1.00 ea ?
NOTE: The amount of Fuel going through this is not very much and mixed with a lot of air,
If i were going to build a budget version of this, i would get all parts listed above in their correct sizes, But substitute #1 for 1-1/4"ID Radiator hose, as it is Coolant and Oil, resistant, I would think it will last a long time.
Hose Must Be smooth in the ID,
If you experience any hose collapse with the Radiator hose, a short piece of spring the same ID of the 1-1/4" hose, in the center of the ID, of that hose will fix it.
Or some left over Steel tube, That has been Totally deburred, & Lubed up with ATF automatic trans fluid, in ID of hose and od of steel tube, then slide it in to the center of length of hose.
Also substitute #3 for, 1-1/2"ID radiator Hose must Be smooth in the ID
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