Pennock's Fiero Forum
  Technical Discussion & Questions
  How to identify pre-88 from 88 exhaust manifolds?

Post New Topic  Post A Reply
Email This Page to Someone! | Printable Version


next newest topic | next oldest topic
How to identify pre-88 from 88 exhaust manifolds? by Carrolles
Started on: 10-12-2013 09:12 PM
Replies: 11 (299 views)
Last post by: sardonyx247 on 10-16-2013 10:58 PM
Carrolles
Member
Posts: 2799
From: Alabaster, AL USA
Registered: Apr 99


Feedback score: (3)
Leave feedback

Rate this member

Report this Post10-12-2013 09:12 PM Click Here to See the Profile for CarrollesClick Here to Email CarrollesSend a Private Message to CarrollesEdit/Delete MessageReply w/QuoteDirect Link to This Post
I understand that 1988 exhaust manifolds are different from pre-1988 ones. If this is true how do you identify each?
IP: Logged
PFF
System Bot
Boostdreamer
Member
Posts: 7175
From: Kingsport, Tennessee USA
Registered: Jun 2007


Feedback score:    (24)
Leave feedback





Total ratings: 98
Rate this member

Report this Post10-12-2013 09:53 PM Click Here to See the Profile for BoostdreamerClick Here to Email BoostdreamerSend a Private Message to BoostdreamerEdit/Delete MessageReply w/QuoteDirect Link to This Post
First I heard of it. I have a Formula parts car that I could go look at if you can tell me something to look for.

------------------
Jonathan

'68-69 GTO Nose - The Project has Begun!
My '85 L67 Build Thread

IP: Logged
Raydar
Member
Posts: 38691
From: Carrollton GA. Out in the... country.
Registered: Oct 1999


Feedback score:    (12)
Leave feedback





Total ratings: 452
Rate this member

Report this Post10-12-2013 10:29 PM Click Here to See the Profile for RaydarClick Here to Email RaydarSend a Private Message to RaydarEdit/Delete MessageReply w/QuoteDirect Link to This Post
V6 exhaust manifolds are all the same as far as I know. I've never heard anything different.
There IS a possibility that the 88 heat shielding is a bit different.
I know it is on the crossover. (The 88 being insulated with an asbestos(?) and heavt foil wrap. The earlier years having several pieces that bolt / clamp into place.)
IP: Logged
lateFormula
Member
Posts: 992
From: Detroit Rock City
Registered: Jul 2002


Feedback score: (2)
Leave feedback

Rate this member

Report this Post10-12-2013 11:23 PM Click Here to See the Profile for lateFormulaSend a Private Message to lateFormulaEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Raydar:
I know it is on the crossover. (The 88 being insulated with an asbestos(?) and heat foil wrap. The earlier years having several pieces that bolt / clamp into place.)


No asbestos insulation on the 88's. It was only a two layer stamped sheet metal (light gauge/thin sheet metal) heat shield that was basically two halves spot welded together. Nothing other than the sheet metal.
IP: Logged
Raydar
Member
Posts: 38691
From: Carrollton GA. Out in the... country.
Registered: Oct 1999


Feedback score:    (12)
Leave feedback





Total ratings: 452
Rate this member

Report this Post10-13-2013 02:05 AM Click Here to See the Profile for RaydarClick Here to Email RaydarSend a Private Message to RaydarEdit/Delete MessageReply w/QuoteDirect Link to This Post
The one I removed had some sort of insulation in it. It was at least 1/8 thick.
Looked like some sort of coarse white fabric or fiber. It was not woven, however. (Rock wool comes to mind.)
(I remember it clearly, because it creeped me out when I was removing it.)

Perhaps there was some sort of mid year production change.

[This message has been edited by Raydar (edited 10-13-2013).]

IP: Logged
olejoedad
Member
Posts: 14397
From: Clarendon Twp., MI
Registered: May 2004


Feedback score: (5)
Leave feedback





Total ratings: 192
Rate this member

Report this Post10-13-2013 09:30 AM Click Here to See the Profile for olejoedadClick Here to Email olejoedadSend a Private Message to olejoedadEdit/Delete MessageReply w/QuoteDirect Link to This Post
The exhaust manifolds are interchangeable; the crossover, downpipe and exhaust pipe are different and not interchangeable.

Edit for smart phone.....

[This message has been edited by olejoedad (edited 10-13-2013).]

IP: Logged
Blacktree
Member
Posts: 20570
From: Central Florida
Registered: Dec 2001


Feedback score:    (11)
Leave feedback





Total ratings: 350
Rate this member

Report this Post10-13-2013 10:03 AM Click Here to See the Profile for BlacktreeClick Here to visit Blacktree's HomePageClick Here to Email BlacktreeSend a Private Message to BlacktreeEdit/Delete MessageReply w/QuoteDirect Link to This Post
As mentioned above, the '88 and pre-'88 have different heat shielding. But as far as I know, the manifolds are interchangeable.
IP: Logged
BillS
Member
Posts: 603
From:
Registered: Apr 2000


Feedback score: N/A
Leave feedback

Rate this member

Report this Post10-15-2013 02:45 PM Click Here to See the Profile for BillSClick Here to Email BillSSend a Private Message to BillSEdit/Delete MessageReply w/QuoteDirect Link to This Post
IIRC, the only difference between 88 and the earlier V6 exhaust manifolds is that the attachment holes have been ovalled a little to allow for expansion. They are all functionally interchangeable.
IP: Logged
onesexyfiero
Member
Posts: 771
From: VT/NH
Registered: Apr 2008


Feedback score: (4)
Leave feedback

Rate this member

Report this Post10-16-2013 12:28 PM Click Here to See the Profile for onesexyfieroClick Here to Email onesexyfieroSend a Private Message to onesexyfieroEdit/Delete MessageReply w/QuoteDirect Link to This Post
The 88 crossover pipes insulation is fiberglass.
IP: Logged
sardonyx247
Member
Posts: 5024
From: Nevada, USA
Registered: Jun 2003


Feedback score:    (88)
Leave feedback





Total ratings: 218
Rate this member

Report this Post10-16-2013 07:54 PM Click Here to See the Profile for sardonyx247Click Here to visit sardonyx247's HomePageClick Here to Email sardonyx247Send a Private Message to sardonyx247Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by onesexyfiero:

The 88 crossover pipes insulation is fiberglass.


No, it's not. Just stamped metal.

The manifolds are the same, the crossover pipes are different.

I have to assume you are talking about V6s.


------------------
"DRIVE IT LIKE A FIERO"
'84 Fiero, engine to be determined
'87 Quad 4 H.O.
'87Blue GT 3.4L Swap Completed!!!!!!!! Boosted!!!!!!!
^^^^ Now in the Construction Zone^^^^
Las Vegas Fiero Club Parts/Sales/Service/Club
Fiero Road Club Of Northern Nevada

IP: Logged
Raydar
Member
Posts: 38691
From: Carrollton GA. Out in the... country.
Registered: Oct 1999


Feedback score:    (12)
Leave feedback





Total ratings: 452
Rate this member

Report this Post10-16-2013 10:15 PM Click Here to See the Profile for RaydarClick Here to Email RaydarSend a Private Message to RaydarEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by sardonyx247:
No, it's not. Just stamped metal.


 
quote
Originally posted by Raydar:
The one I removed had some sort of insulation in it. It was at least 1/8 thick.
Looked like some sort of coarse white fabric or fiber. It was not woven, however. (Rock wool comes to mind.)
(I remember it clearly, because it creeped me out when I was removing it.)

Perhaps there was some sort of mid year production change.
IP: Logged
PFF
System Bot
sardonyx247
Member
Posts: 5024
From: Nevada, USA
Registered: Jun 2003


Feedback score:    (88)
Leave feedback





Total ratings: 218
Rate this member

Report this Post10-16-2013 10:58 PM Click Here to See the Profile for sardonyx247Click Here to visit sardonyx247's HomePageClick Here to Email sardonyx247Send a Private Message to sardonyx247Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Raydar:


[QUOTE]Originally posted by Raydar:
The one I removed had some sort of insulation in it. It was at least 1/8 thick.
Looked like some sort of coarse white fabric or fiber. It was not woven, however. (Rock wool comes to mind.)
(I remember it clearly, because it creeped me out when I was removing it.)

Perhaps there was some sort of mid year production change.
[/QUOTE]

You know thinking about it, some of them may have had some of the white crappy GM insulation that powderizes and falls out, in them. But I'm not sure. I know all the ones I have seen in the last 8 years all had nothing in them.
I have seen too many Fieros since back then to remember.
IP: Logged

next newest topic | next oldest topic

All times are ET (US)

Post New Topic  Post A Reply
Hop to:

Contact Us | Back To Main Page

Advertizing on PFF | Fiero Parts Vendors
PFF Merchandise | Fiero Gallery | Ogre's Cave
Real-Time Chat | Fiero Related Auctions on eBay



Copyright (c) 1999, C. Pennock