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

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Guest

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

Postby Guest » Mon Dec 03, 2001 8:42 pm

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



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industrialstrength
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Location: BFE W PA

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

Postby industrialstrength » Mon Dec 03, 2001 8:53 pm

sounds like you got a good plan, now howz 'bout my 3100! :D


91 GTZ Q4

189,000

Guest

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

Postby Guest » Mon Dec 03, 2001 10:36 pm

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



Guest

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

Postby Guest » Tue Dec 04, 2001 12:24 am

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".



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90BerettaGTZ
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GTZ header..listen up..someone found something...

Postby 90BerettaGTZ » Tue Dec 04, 2001 7:32 am

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. =)



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

Postby rweatherford » Tue Dec 04, 2001 8:31 am

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.


Rex Weatherford
92 Beretta GTZ Quad4 Turbo / 5-speed (sold)
Best 1/4 ET =  13.523 @ 105.16 mph

07 Mazda 5 Black on Black (it's slow)


Guest

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

Postby Guest » Tue Dec 04, 2001 2:20 pm

Has anyone tried a header off a 2.4L engine?

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



Guest

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

Postby Guest » Tue Dec 04, 2001 2:50 pm

As far as TwinCam 2.4L headers go, they won't fit directly... Different Bolt Patterns.



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90BerettaGTZ
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GTZ header..listen up..someone found something...

Postby 90BerettaGTZ » Tue Dec 04, 2001 5:21 pm

...as well as different head ports.



Guest

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

Postby Guest » Tue Dec 04, 2001 10:54 pm

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



Guest

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

Postby Guest » Wed Dec 05, 2001 1:05 pm

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!!! <----gonna have header soon.....power power POWER....must...have ......more.............power............guess im gonna have to buy the ac changover pulley system and the underdrive too  :p Ill tell the wifey she got them for me for christmas  ;)



Guest

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

Postby Guest » Wed Dec 05, 2001 9:01 pm

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.  
:)



Guest

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

Postby Guest » Mon Dec 10, 2001 1:07 am

hey erichm555,
what size rimz & tirez are those?



Guest

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

Postby Guest » Mon Dec 17, 2001 12:42 am

Here's one of those manifolds on Ebay:

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

If anyone wants to give it a shot.



Guest

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

Postby Guest » Mon Dec 17, 2001 10:52 am

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




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