90-92 vs 92.5-95 Cats - ZR-1 Net Registry Forums

LGAFF · 02-07-2009

Anyone have pics of the differences in Catalytic converters?

Trying to determine if the Cats have been replaced on the new 90.

Thanks

jonszr1 · 02-07-2009

dont have a way to post pics of mine but if you post ppics of yours i have 2 sets of exhaust/cats that i can look at mine and tell you what the differences are .

tccrab · 02-07-2009

The '90-'92 are a single unit, manifold and cat are welded together.
The later years have flanges and can be unbolted.

TomC
"Crabs"

LGAFF · 02-07-2009

Are the bolts from the converters easy to see, or are they hidden behind heat shields?

tf95ZR1 · 02-07-2009

Pics about the middle of the presentation.
Good stuff!

http://www.zr1specialist.com/HAT%20W...20Upgrades.pdf

LGAFF · 02-07-2009

Thanks, will have to go out and look at differences.

QB93Z · 02-07-2009

Here is a picture of the manifold and cats from my 1993.

Jim

QB93Z · 02-07-2009

I found a better picture shawing the flange:

Jim

02-07-2009	#1
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,180	90-92 vs 92.5-95 Cats Anyone have pics of the differences in Catalytic converters? Trying to determine if the Cats have been replaced on the new 90. Thanks __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

02-07-2009	#2
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,406	Re: 90-92 vs 92.5-95 Cats dont have a way to post pics of mine but if you post ppics of yours i have 2 sets of exhaust/cats that i can look at mine and tell you what the differences are .

02-07-2009	#3
tccrab Join Date: Oct 2004 Location: Folsom CA Posts: 1,657	Re: 90-92 vs 92.5-95 Cats The '90-'92 are a single unit, manifold and cat are welded together. The later years have flanges and can be unbolted. TomC "Crabs"

02-07-2009	#4
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,180	Re: 90-92 vs 92.5-95 Cats Are the bolts from the converters easy to see, or are they hidden behind heat shields? __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

02-07-2009	#5
tf95ZR1 Join Date: Aug 2005 Location: Northridge, CA Posts: 1,454	Re: 90-92 vs 92.5-95 Cats Pics about the middle of the presentation. Good stuff! http://www.zr1specialist.com/HAT%20W...20Upgrades.pdf

02-07-2009	#6
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,180	Re: 90-92 vs 92.5-95 Cats Thanks, will have to go out and look at differences. __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

02-07-2009	#7
QB93Z Join Date: May 2007 Location: Westminster, Maryland Posts: 3,684	Re: 90-92 vs 92.5-95 Cats Here is a picture of the manifold and cats from my 1993. Jim

02-07-2009	#8
QB93Z Join Date: May 2007 Location: Westminster, Maryland Posts: 3,684	Re: 90-92 vs 92.5-95 Cats I found a better picture shawing the flange: Jim