3 window

iTrader: (1)

Long story short, my buddy ordered 6 feet of 6 mm hard plastic air hose and they sent him 6 packs, 4 feet each. Changing over to push-to-connect fittings and am wondering is anyone using 6mm lines to their gate? Wondering if it's too small? If so, I'll go 1/4".

LS1-IROC

iTrader: (4)

6mm line is only 0.35mm smaller than a 1/4" line. You will be fine.

a05c

All it's doing is delivering air to a port, it doesn't care at what size the line is.

stevieturbo

It does care...but 6mm is quite fine.

Just dont put that nylon near any heat where it might melt.

gametech

iTrader: (1)

And keep a couple of extra packs, as that nylon will harden and crack in time.

Ratical

iTrader: (82)

Since you mentioned melting the line, I already had one of my wastegate lines melt on one side. I was just going to heat wrap the pipe near it, but is there another type of line I should be using?

stevieturbo

regular good quality rubber 1/4 fuel hose works fine and is more robust than nylon.

Busted67

iTrader: (1)

I used 3an braided nitrous line.
I don't want a failure in my waste gate/ co2 lines.

wildcamaro

iTrader: (15)

I am using silicone vacuum hose and there is a section that is close to my manifold, which has the DEI heat wrap and the line shows no signs of melting

Area 51 Racing

iTrader: (5)

I bought some 10mm silicone vac line off FleaBay, 20FT for like $12, stuff is top shelf for the price. Highly recommend it.

RyanR

stevieturbo

A lot of small silicone is flimsy crap, too soft, easily split/damaged etc. I would never use it for something as important as a wastegate.

There may be some good quality stuff out there, but I've never seen any I'd be happy with.

Busted67

iTrader: (1)

This is very true. Don't skimp on a line that can over boost your motor.

a05c

We use the 1/4" push to connect fittings. It's way away from anything hot, I put a silver sharpie mark on at each of the connections to do a quick visual incase if it starts working its way out of the fitting.

Never had any problems with it.

dburt86

iTrader: (2)

I use the same stuff on everything. I usually buy a 10 pack of plastic fittings off ebay for like 5$ and then get the line at napa (1/4" air brake line)

Ive never had a failure with it, even with the plastic fittings on the wastegates.

But its a much bigger deal on cars with out over boost protection.

Busted67

iTrader: (1)

If I was using ptc fittings I would get ones dot rated. Apparently they are better quality.

stevieturbo

push fittings are great...I use them in "cold" locations.

I'd never consider a wastegate cold enough to be safe though...although many do seem to use them with success.

I guess if wastegate is fairly remote mounted and away from the main body of exhaust/turbo it would be a lot cooler. But there would still be a lot of heat soak after stopping.

truckdoug

iTrader: (25)

i use PTC. this stuff works pretty good for me. you gotta route it under anything hot. while it is resistant to 500*F, it'll droop at a couple hundred and make a stinky mess.


https://www.amazon.com/Zeus-Regular-...F4+tubing+ptfe

Ratical

iTrader: (82)

Cool. I have all push lock fittings now. I will re-think the lines that go near heat.

a05c

We use them on wastegate lines as well, since its a racecar... it doesn't run long enough to worry about melting them, and they're far enough away that it shouldn't.