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GTZ header..listen up..someone found something...

Posted: Mon Dec 03, 2001 8:42 pm
by Guest
Bi-Y header, removed from low output Quad4 that was in an Oldsmobile. Only place as far as I know to get this header, supposedly wasn't used in the Pontiac or Chevy applications. Yes, it's off the low output motor, but it is an improvement for any Quad4, even H.O's. This is not a cast manifold.
Replaced 2" pipe from the collector of header which leads to a 2" pipe i replaced my cat with and for 22 dollars at Napa you can get the pipe that goes from the cat over your rear axle to your muffler. Then I used a stock-fit dual outlet turbo muffler from Napa with chrome tips top finish it off. It's mean, and a HUGE improvement over stock.

That was quoted by a guy on the berettastuff forum. I'm thinking about going with the header that he's talking about. What are your opinions on this?

Thanks
-Steve

GTZ header..listen up..someone found something...

Posted: Mon Dec 03, 2001 8:53 pm
by industrialstrength
sounds like you got a good plan, now howz 'bout my 3100!

GTZ header..listen up..someone found something...

Posted: Mon Dec 03, 2001 10:36 pm
by Guest
SWEEEEETT!! Thanks for the heads up. I'll look into getting one this week. Do you think I could order this form a Chev Dealer? Or go to a junk-yard?   Adam

GTZ header..listen up..someone found something...

Posted: Tue Dec 04, 2001 12:24 am
by Guest
Junkyards are gonna be your best bet for that part, HOWEVER, even though the manifolds are more "header-like" than a newer HO manifold, at least in looks, there isn't really a proven gain from this.  Thats why most places just advice porting the 91-92 Cast HO manifold, like Mantapart does.

IMHO, its gonna be a lot more pain than gain with an 89 Calais LD2 "header".

GTZ header..listen up..someone found something...

Posted: Tue Dec 04, 2001 7:32 am
by 90BerettaGTZ
a better idea would be to cut the ld2 header up about 6" from the flange, then follow the same lines, but with a 1 3/4" step in it. then finish it off with a 2.5" collector leading to a mandrel bent 2.5" exhaust. THAT would be alot better. =)

GTZ header..listen up..someone found something...

Posted: Tue Dec 04, 2001 8:31 am
by rweatherford
Quote (90BerettaGTZ @ Dec. 04 2001,07:32)a better idea would be to cut the ld2 header up about 6" from the flange, then follow the same lines, but with a 1 3/4" step in it. then finish it off with a 2.5" collector leading to a mandrel bent 2.5" exhaust. THAT would be alot better. =)
90BerettaGTZ has the correct idea.  Perhaps he is a member of the Quadfourm?  

Anyway,  People are running 14's with either the HO or LO manifolds when modified.  No one has dyno'd between them for actual results.

GTZ header..listen up..someone found something...

Posted: Tue Dec 04, 2001 2:20 pm
by Guest
Has anyone tried a header off a 2.4L engine?

Also there are headers for the 3400 that will prolly fit the 3100.

GTZ header..listen up..someone found something...

Posted: Tue Dec 04, 2001 2:50 pm
by Guest
As far as TwinCam 2.4L headers go, they won't fit directly... Different Bolt Patterns.

GTZ header..listen up..someone found something...

Posted: Tue Dec 04, 2001 5:21 pm
by 90BerettaGTZ
...as well as different head ports.

GTZ header..listen up..someone found something...

Posted: Tue Dec 04, 2001 10:54 pm
by Guest
Sounds like a plan, dont you gain more low end tq with the LD2 headers? i have my manifold ported and all and on the low end my feels lke a honda! yuk i need back pressure lol

GTZ header..listen up..someone found something...

Posted: Wed Dec 05, 2001 1:05 pm
by Guest
Did I miss something? I was just checking manta part and they are offering a pre-cut exhaust mainfold flange for use in custom header fabricating for the 'Lil' 2.3....and it comes with the head-manifold gasket for only fifty buck!.....hmmm....im in the process of starting my custom fab this winter...Im gonna order my flange in a week or so! YEAH BABY!!! Ill tell the wifey she got them for me for christmas  

GTZ header..listen up..someone found something...

Posted: Wed Dec 05, 2001 9:01 pm
by Guest
I got the AC delete pully from GM parts direct.  PART NO.  22533199
its called BRACKET A
Handling and Shipping:
$9.95
ORDER TOTAL:
$36.01

It looks the same as the one mantapart has.  

GTZ header..listen up..someone found something...

Posted: Mon Dec 10, 2001 1:07 am
by Guest
hey erichm555,
what size rimz & tirez are those?

GTZ header..listen up..someone found something...

Posted: Mon Dec 17, 2001 12:42 am
by Guest
Here's one of those manifolds on Ebay:

http://cgi.ebay.com/ebaymot....9268903

If anyone wants to give it a shot.

GTZ header..listen up..someone found something...

Posted: Mon Dec 17, 2001 10:52 am
by Guest
Quote (95black2.2 @ Dec. 10 2001,02:07)hey erichm555,
what size rimz & tirez are those?
They look to be the stock GTZ rims. I think they're 16x7.5 [or was it 7?] with 205 rubber.

-Steve