How far back for H-pipe?

[422STROKER]

I got a H-pipe kit to cut in and I have to put it back by the front of the driveshaft due to pipes not being straight until there.  How far back before it becomes an issue?  I mean is it detrimental to performance in anyway or does it not matter?

Tom

[GoodysGotaCuda]

merge pipe should be halfway between the header collectors and mufflers.

[422STROKER]

Well then I guess for me it can be pretty far back.LOL

So if I put it just past the trans cross member I'm good?

Tom


By tdavist, shot with DSC-P72 at 2008-04-26

[GoodysGotaCuda]

i would say so. but btw, please, please get some decent jackstands! those things look they they are set too high, over their limit! I got my 6 ton jack stands for $25 a pair from harbor freight, cheap insurance and go plenty high!

[422STROKER]

Yeah I've already been scolded a few times.

I thought the 2.5 ton rating was enough.   And they are all the way up in that pic.  I'll use the 6 tonners when I do the h-pipe.

Tom

[wally426ci]

Tom, i demand you listen to Goody at once!! We're not gonna lose you! remember Phantasm?  

NOOOOOO----->

[422STROKER]

Tom, i demand you listen to Goody at once!! We're not gonna lose you! remember Phantasm?  

NOOOOOO----->

I got it.  I guess these little ones can hold up the exhaust when I start cutting.

Tom

[GoodysGotaCuda]

yes the 2.5ers will make great exhaust stands 

[Aussie Challenger]

  Remember safety first,      You don't have to cut the pipes to install the "H" pipe, just make a reasonable hole that will be covered by the joining pipe. Behind the rear mount should be fine.   

[nivvy]

there........

[422STROKER]

Thanks Stroker, thats where I was going to do it.

Tom

I had seen a bunch located further forward near the crosmember.

[Chryco Psycho]

As long as the pressure can crossover bfore the muffler you will be fine

[422STROKER]

As long as the pressure can crossover bfore the muffler you will be fine

Thanks Chryco!

Tom

[nqkjw]

Every engine will have different exhaust temperatures due to it's build and so the ideal location for the balance pipe will vary.
The correct place for the H crossover can be determined (oldschool backyard method )by marking a crayon line along the pipe,start the engine and get up to temp and the point where the crayon melts to is the ideal location for the crossover pipe.
Of course by necessity things like trannys in the way can over ride the best location.  

[422STROKER]

That is a good tip, Thanks!

Tom

Maybe I'll attack it this weekend, been too nice to take the car out of action.lol