L69 Guys, Part II
Thread Starter
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
L69 Guys, Part II
Are there two different styles of cats for the L69, one from 84-85 and another from 86 up? If so, is the first a 4-bolt front/rear design and the second a slip design?
JamesC
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JamesC
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Supreme Member
Joined: Sep 1999
Posts: 3,197
Likes: 10
From: Manassas VA
Car: 04 GTO
Engine: LS1
Transmission: M12 T56
What you just said is quite possible. The early HO cat was the 4 bolt that you talk about. The 85 TPI cars also had these. Whenever the TPI cars switched to the single 3" thats when the L69 would've too. And i do think that switch was 86. Still, 86 L69s are rare as poop, why does this matter?
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Ed Maher - Moderator @ The TPI & Carb Boards
92 Z28 Convertible - Quasar blue / Tan top
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-=ICON Motorsports=-
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Ed Maher - Moderator @ The TPI & Carb Boards
92 Z28 Convertible - Quasar blue / Tan top
LB9 4L60 GU2 G80 - stock, soon to be sleeper
-=ICON Motorsports=-
- Definitely prototypes, high powered mutants of some kind. Too weird to live, too cool to die
Thread Starter
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
I'm looking for a high-flow cat for an 84 HO set-up.
James
c
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James
c
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Supreme Member
Joined: Jul 1999
Posts: 18,457
Likes: 16
From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
Did you look at the link to the Catco that I sent you?
There used to be a couple of people that serviced the turbo Buick market, which uses the same part; also Random Tech sells a 3" universal and an "adapter kit" that might work, but there's no pic on their home page; and SLP sells the flanges, which can be welded onto any cat. I have a Dynomax 15143 and the SLP flanges on my L69.
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"So many Mustangs, so little time..."
ICON Motorsports
There used to be a couple of people that serviced the turbo Buick market, which uses the same part; also Random Tech sells a 3" universal and an "adapter kit" that might work, but there's no pic on their home page; and SLP sells the flanges, which can be welded onto any cat. I have a Dynomax 15143 and the SLP flanges on my L69.
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"So many Mustangs, so little time..."
ICON Motorsports
Thread Starter
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
RB83L69,
Yes, I did take a look, many thanks for the part number. I noted the 15443 Dynomax as well (which is what prompted my quesion). May I ask why you chose to modify the Dynomax rather than to choose the Catco?
JamesC
Yes, I did take a look, many thanks for the part number. I noted the 15443 Dynomax as well (which is what prompted my quesion). May I ask why you chose to modify the Dynomax rather than to choose the Catco?
JamesC
Supreme Member
Joined: Jul 1999
Posts: 18,457
Likes: 16
From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
At the time I didn't know about the Catco; also the Dynomax has one of the highest measured flows of anything you can buy. And, the muffler shop a block from my house had it in stock, so I could look at it and decide if that's what I wanted or not. I've never actually seen the Catco one that I know of.
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"So many Mustangs, so little time..."
ICON Motorsports
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"So many Mustangs, so little time..."
ICON Motorsports
Thread Starter
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Does SLP have a website?
JamesC
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JamesC
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From: Loveland, OH, US
Car: 4
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Transmission: 5
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