ATP turbo sells silicon vacuum hose in 1/4" and 1/8". Which diameter and how many feet should I need? It's extremely cheap, so buying too much isn't a problem, but i don't really have any idea. How many T's do you think i'll need? Also, does anyone know what piping to buy for an intake and a downpipe? I already have the IC piping. Thanks in advance!

 

You will likely need both sizes. Since every car is different, it is best to just look under the hood and get a rough estimate of what you need. Hell, if it is really that cheap, just get 10' of each size, and you may have enough for 3 cars.

If you have the equipment to weld mild steel, I recommend buying J or U-bends from http://www.summitracing.com. For my entire system I used:

-3 2" U-bends for the intercooler pips
-2 2.5" with 3.5" radius for the downpipe (recall my inverted turbo arrangement)
-2 2.5" with 5" radius for the exhaust
-5' of straight exhaust pipe from Napa. (You actually have to buy 10', for like $30)
-A 2" to 2.75" exhaust reducer for the cold pipe-to-TB

 

I bought 10' of vacum line and it was enought and i still have a lil bit extra.

 

anyone know how many T's?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackcivic44 &raquo;</TD></TR><TR><TD CLASS="quote">anyone know how many T's?</TD></TR></TABLE>
if u get a vacuum manifold u shouldn't need any
if not ur going to need one for every vac source that ur adding ie. wg, bov..etc