Pyro Install

[Dallas4x4]

Ive got everything here to install my pyro. Everything is ready. my instrutions say drill a hole and tap using a 1/8 NPT bit. So i have a 1/8 NPT tapper but i dont know what size of bit to use??? Im very weary of drilling into the exhaust manafold and drilling to large of hole... Anyone here has done the same. What size of drill bit did you use?

[vitalidle]

A size R drill bit or .339 or 21/64ths will work

[TXbroker]

Originally Posted by Dallas4x4

Ive got everything here to install my pyro. Everything is ready. my instrutions say drill a hole and tap using a 1/8 NPT bit. So i have a 1/8 NPT tapper but i dont know what size of bit to use??? Im very weary of drilling into the exhaust manafold and drilling to large of hole... Anyone here has done the same. What size of drill bit did you use?

So are you in Dallas? we have a GTG coming up in April and we get together about once a month with the local crew!

[Dallas4x4]

lol, my name is Dallas. Im in victoria BC Canada.


so 21/64 bit???

[TXbroker]

Well you may not be here but its a Damn good name,,,,,,,

[Dirk]

21/64 is the bit. Take your time, use a LOT of anti seize grease.

[CHUCK]

Anyone have any trouble drilling the hole in the exhaust manifold. I was told by a couple people, that due to the metal the exhaust manifold is made from, its a chore,and not advisable. Im sure with all the post and pics, if I take my time, i wont have much if any trouble...

[Dirk]

Originally Posted by CHUCK

Anyone have any trouble drilling the hole in the exhaust manifold. I was told by a couple people, that due to the metal the exhaust manifold is made from, its a chore,and not advisable. Im sure with all the post and pics, if I take my time, i wont have much if any trouble...

I was going too fast! It's easy to drill, just use a QUALITY bit!

[CHUCK]

1 more question, the gauge (autometer) instructions call for a 18 gauge wire. All the connectors I have is for 16ga. I cant see any problems using the 16ga, instead of the 18ga. As far as I can figure, its better to go bigger ( to an extent )than smaller.

[Dirk]

Going to a larger wire on this will not be a problem.