How do I cut a hole in my HM manifold for my turbo flange?
 

Well...? I have already made my log section http://www.newbieforces.com/files/DSCF0009_009.jpg and I don't know how to cut my 2" hole in the side of it to weld my t25 flange on it? any pointers?

Re:How do I cut a hole in my HM manifold for my turbo flange?
 

get a grinder, with a grinding wheel and work at it from the side of the grinder... will take a while, but will be worth it :)

Re:How do I cut a hole in my HM manifold for my turbo flange?
 

it would probably take like 2 hrs doing it that way, anyone else have any suggestions?

Re:How do I cut a hole in my HM manifold for my turbo flange?
 

if you have or access to a plasma cutter that would be one way or you can cut into the streight side of it with a saw and grind the rest with the grinder or use the cutting wheel

Re:How do I cut a hole in my HM manifold for my turbo flange?
 

I would maybe try a hole saw and a drillpress at very low speed with lots of lubrication.

-Nick

Re:How do I cut a hole in my HM manifold for my turbo flange?
 

lookin good.

i probably would not use a cutting torch, it will effect the metal around the area you're cutting.

if you don't want to mess with using a 4-1/2" angle grinder on it (which I could have done in no time flat) then take that ---- to a welding shop and have them plasma the hole for you, shouldn't charge you much.

Re:How do I cut a hole in my HM manifold for my turbo flange?
 

Funny thing is when I first saw you post that, that was my very first question... how the heck is pa2play going to put a hole in that thing! hah Good luck buddy

Re:How do I cut a hole in my HM manifold for my turbo flange?
 

I HAD access to a plazma cutter yesterday, but I don't any more(my car class is over for the semester :'( ) I have a drill press, and I could go and buy a hole saw, i'm not sure how I could clamp it down though...hum...maybe I'll take it to a machine shop and see what they can do.

Re:How do I cut a hole in my HM manifold for my turbo flange?
 

Clamp it down on a vise and go at it with a bimetal holesaw.You can just use a regular drill and spray it with cutting lube or even wd40.Trust me on this one.Sometimes I use my cordless drill if I cant angle it right on the drill press.

Re:How do I cut a hole in my HM manifold for my turbo flange?
 

cut a piece of pipe thin, tack it onto where u want your hole, then run around the inside of the tacked pipe with your cutting torch. works awsome.

also, if u can bolt it to a spare head for this to keep the flange from warping thats a good idea.

if not let it cool in sand after your done, do not put water on it. bury it in sand.

Re:How do I cut a hole in my HM manifold for my turbo flange?
 

Can he not use a dremel and some of those reinforced cutting wheels? I used those to cut some off of my hf manifold and it cut through like butter.

Re:How do I cut a hole in my HM manifold for my turbo flange?
 

what did you cut off your HF manifold?

Re:How do I cut a hole in my HM manifold for my turbo flange?
 

I went and bought a 2 1/8" hole saw today, $17, kinda sucks I'm only gonna use it once. Anyone else want to buy it from me to do theirs, I'll sell it cheap whem I'm done with it ;) It would cut the right size hole for a t25 flange.

Re:How do I cut a hole in my HM manifold for my turbo flange?
 

I had to match it so it would fit on the zc, you have to cut the bottom of the flange flat cause theres a little ridge on the zc that won't let it sit flush if you don't cut some off of it.

Re:How do I cut a hole in my HM manifold for my turbo flange?
 

use a drill to make some preholes
then use a saw or a grinder...wtv

easier and more precise this way, make sure to trace with a pencil the hole u wish to create

Re:How do I cut a hole in my HM manifold for my turbo flange?
 

That would take a year!lol..

Re:How do I cut a hole in my HM manifold for my turbo flange?
 

I have the same thing made and I'm planning to use a die grinder when I get the position right.

Re:How do I cut a hole in my HM manifold for my turbo flange?
 

AS for the warpage issue from heat if you use a torch or heat it up a lot, try setting the flange side of it in a pan of water. Worked for me...