Opinions on 1 1/2" long tubes?

[91lxttrim]

I got a smokin deal on a set of 1 1/2" long tubes with 3" collectors. I always thought if you're going to do long tubes, you go with 1 5/8" or 1 3/4" primaries.

Is it worth it to put these on? I'm planning on a 3" Pro Chamber with the headers...

I have a TFS Track Heat HCI btw

 

[91 HATCH]

1 1/2 IS GOOD FOR NOT LOSING ALOT OF YOUR TORQUE.I WOULD PUT THEM ON IT

 

[85_SS_302_Coupe]

I've never heard of 1 1/2 headers...especially with a 3 inch collector? That's kinda reverse engineering in a way....small primaries into large diameter exhaust.

 

[Curse]

What brand are the long tubes

 

[91lxttrim]

Hedman 88360's

 

[cenok is family]

i have these headers too! you're the FIRST person i've seen who's actually had these! i got them off my brother for $40 so i figured what the hell. i haven't gotten to run a car with these yet though because i'm in the middle of rebuilding my motor. Have you run them yet? i'd like to know how they are...such weird sizing. here's a pic...

 

[91lxttrim]

Not yet, still debating whether I should go thru the trouble of putting them on. I can understand 91HATCH's point (even though he's yelling all the time lol)

 

[cenok is family]

you should man, gotta be better than stock

 

[91 HATCH]

SORRY about the yelling

 

[85_SS_302_Coupe]

I'm gonna take a guess and say these have a 3 bolt flat style flange at the collector right? If so you're gonna have to really rig it up to make that taper down into a 2.5 size and THEN run it into your H or X or whatever, and then when you do it's highly likely that you'll have to weld a ball flange on the back of your rig up pipe to mate to the H/X, and THEN all of that is going to be further back than it should, and it's going to jack up the rest of your catback (follow that?).

They sound like really old school 289 headers if you ask me...i don't even think the stock manifolds were 1.5 inch at the primaries.

 

[91lxttrim]

You're right. But somebody already did all that. Looks like they took a stock h-pipe, cut the front cats off, and welded on 3" flat three hole flanges reduced down to 2 1/2".

I am running dumps now anyway so the catback isn't an issue...

The Fel Pro exhaust gaskets are 1.28 x 1.48 or something. I know it was around 1.5"

I got everything for $100. We'll see I might just put them on another car...

 

[91lxttrim]

Crappy pic...

View attachment 384732

 

[85_SS_302_Coupe]

So the headers are already welded to the H pipe? That'll be fun to bolt on...i hope it didn't distort and warp after they were removed.

 

[91lxttrim]

No. 3" to 2.5" adapters are welded to the h-pipe. the headers are seperate, like they should be.

It's a dark picture, I'll try to get a better pic up tonight...

 

[cenok is family]

well i'm putting them on...i'll let you know if it's worth the effort or not.

 

[91lxttrim]

Cool. I look forward to hearing what happens...