Cascade Crew

Xophertony

ok, PMs are getting complicated. making a thread.

so i just talked to SLP. they said they have never made a 3" y pipe. soooo does that mean we have to make one? the ypipes they sell with both the 1-5/8 and the 1-3/4 are 2-1/4 under the oil pna and 2-1/2 out.

we will probably need to buy some mandrel bent pipe for this right? how are we gonna know what to buy? should we get together and put the car up for a "planning session" to draw somthing up, and then weald it all together the next weekend?

Dewey316 · Posted: Tue Feb 28, 2006 1:21 pm Post subject:

Why not just get hooker headers, straight from Jet-Hot. You get the heads, and 3" Y-pipe, already coated.

Xophertony · Posted: Tue Feb 28, 2006 1:32 pm Post subject:

$$$$

i am buying mikes old headers. also jet-hoted. alot cheaper then new headers, plus they are not called "hooker". it may be fine to use "hookers" on a Camaro, but this is a GTA, it's a class thing, you Camaro guys wouldent get it. Laughing

EDIT also, they list hookers for the 305/350 with 1-3/4ths primarys and a 3" collector W/o a ypipe. they do not sell a hooker 1-3/4 w/y-pipe set. without a y-pipe JUST the heads runs 665.38 shipped. (part number 2210 if you want to verify)

Dewey316 · Posted: Tue Feb 28, 2006 1:38 pm Post subject:

Xophertony · Posted: Tue Feb 28, 2006 1:54 pm Post subject:

are SLPs sub-par? Sad

Dewey316 · Posted: Tue Feb 28, 2006 2:18 pm Post subject:

No, and my original post didn't take into account you buying Mike's headers, for a good price. If you were buying new vs new, than IMHO the hookers would be a better deal. Getting the SLP for the price you are, is a good deal. You might look into a custom 3" Y-pipe for them, that would really wake things up.

I will add, I do think the SLP Y-pipe is sub-par. They headers, are not though.

Xophertony · Posted: Tue Feb 28, 2006 2:28 pm Post subject:

SLPs y-pipe is only 2-1/2 inch. if 3" is par it is a 1/2" below par. Evil or Very Mad

i think we will be making one.

and on the hooker issue. i amy be getting hooker catback, so GTAs can haul hookers, they just hafta be in the back. Wink

rjmcgee · The Hammer Joined: 08 Jan 2004 Posts: 2328

Schultzy89GTA · Posted: Tue Feb 28, 2006 2:54 pm Post subject:

IMHO dual 3" off the headers for your L98 is probably a bit overkill. Dual 3" for my engine is probably borderline (~450hp).

-Schultzy

Xophertony · Posted: Tue Feb 28, 2006 3:00 pm Post subject:

well, it would be y-piping into single 3". but i see what you mean. i don't need two 3" pipes going into a single 3" pipe.

sellmanb just Pmed me saying his ypipe is 3" going into his hooker 3" catback. i asked him to post up some details here so you will all know what he is running and we can fuigure out if it will work on my L98

Sellmanb · Member Joined: 30 Nov 2004 Posts: 727 Location: Tigard, OR

You have it right, Tony. Coming from either header it is 2.5" (two 2.5" pipes) and they meet up into a 3" collector at the end of the y-pipe.

There's a "quick pic" lol

Xophertony · Posted: Tue Feb 28, 2006 8:54 pm Post subject:

so, paul, mike.... that setup will work right? then we will only need to weld hangers. easy.. well easier Smile

Twilightoptics · Posted: Tue Feb 28, 2006 10:06 pm Post subject:

You'll need to get the dual 2.5" to single 3" collector to fab up the actual "y" connection.

If you REALLY wanted to do some mandrel stuff we could. It's much more expensive and time consuming. You'll need.... atleast 2 180º Bends at $25 a piece. And then I'd have to cut the pieces off, grind them down to get proper fitment, then tack them. Then unbolt the whole getup and finish the welds outside the car because there isn't the room to do that up there.

If that was the case, you'll wanna put the headers over, then drive your shizzle up here for me to do cause it will take the better part of a day.

Prolly just run mike's y pipes minus the Y fitting.

I wouldn't worry about hangers, because you're should already be setup with a hanger at the Cat.
Which will suspend everything you need.

the other "hanger" is actually the headers themselves.

Xophertony · Posted: Wed Mar 01, 2006 12:29 am Post subject:

if sellmans headers allready have a 3" y collector why do i need another one?

Schultzy89GTA · Posted: Wed Mar 01, 2006 7:10 am Post subject:

Paul, apparently Bob has an SLP 'Y' pipe that Tony is going to buy so he won't be using any of my other pipes and no longer requires the fabrication of a Y pipe. Originally we were talking about using my old pipes off of the headers into a flowtech Y or something... he haz unpimped zis idea Thumbs up

-Schultzy

Twilightoptics · Posted: Wed Mar 01, 2006 9:19 am Post subject:

Ahh gotcha.

So hopefully no welding required, unless the flage that his shop put on at the cat is different than what SLP has.

Groovy!

I'll prolly have Saturday off, but wont know until that previous thursday. I'll let you know then, but otherwise I'm game. It's an easy day project. Especially when you've done them so many times.

Uh Tony, didn't you say your dad's place was out in the open? IE : I'm doing the fuel pump at my dads and was under the car while it rained......

Dewey316 · Posted: Wed Mar 01, 2006 9:21 am Post subject:

Xophertony · Posted: Wed Mar 01, 2006 11:56 am Post subject:

my dad has told me he is willing to move his nova racecar out of the garage for the weekend. we will have the garage. (provided he gets the rearend back on it)

my catalitic converter is NOT flanged at all Evil or Very Mad

i discovered a while back that they never wealded that flange back on. i had failed to notice it when i looked at there work up on the lift because the hander clamp at first glance appeared to be a flange. yeah... i don't think i am going to that place anymore Sad

so we will need to weald a flange on the CAT, and i would like it if we could weald one near the rear, just before all the bends that go above the rear axel, for ease of any future mantinence in that area. (like the dang fuel pump)

paul, will you be bringing your wealder over? is it 220?

Twilightoptics · Posted: Wed Mar 01, 2006 12:15 pm Post subject:

Welder is 110. Standard wall plug.

Get under your car and measure the outside diameter of the Pipe where you want the cat flanged in front... and the diameter of the pipe before the over axle.

Then hit up an exhaust shop and purchase 2ea of the correct diameter 3bolt flanges. They are easiest to work with. Prolly run you $20. If you have an option, ask for the thick flanges. They are like 5/16-1/2 thick. Nice stuff and doesn't warp when you bolt them up.

Then go to napa, and get the appropriate diameter nitroseal gaskets. About $9ea, but you can use em and use em for damn near ever. I've had my exhaust on and off a dozen times, same gaskets, no leaks.

Go pick up some stainless 9/16 Hex Bolts/Nuts. 6 of them, long enough to pass through both pieces of flange, and have proper nut engagement. Like.... 1.5" or 2".

Xophertony · Posted: Wed Mar 01, 2006 12:21 pm Post subject:

will do.

about the 110V. at my dads house you can only weald on 110V for about 15 seconds before the breaker flips.. it sucks. will that work for this, or should we do this someplace else? (i know i can't weald like that, but i am not the best wealder)