Anyone Know anything about this Dynomax True Dual System
Anyone Know anything about this Dynomax True Dual System
Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
https://www.thirdgen.org/techbb2/sho...hreadid=156108
Other than being about $100 over-priced, and a clapped-together, restrictive, no-ground-clearance system - What did you want to know about it?
Other than being about $100 over-priced, and a clapped-together, restrictive, no-ground-clearance system - What did you want to know about it?
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Joined: Mar 2001
Posts: 3,245
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From: Medford, Oregon
Car: 1989 Iroc Z L98
Its non mandrel bent 2 1/4" and it would be horrible for flow. I looked into it at one time, i had them send me a diagram of how the exhaust is run. The exhaust seriously makes 90* corners and flattens in some spots. You can buy the pipe kit from Jegs or Summit for $125 and two mufflers for 60 bucks, that kit on there is a ripoff.
Originally posted by johnsjj2
Not exactly true duals, but it gets the job done.
Not exactly true duals, but it gets the job done.
Ben
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Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
If that's really what it looks like, then it's better than what was described in Summit - and I'll grab the catsup and dig into my plate of crow.
Dual 2.25" is adequate for most engines up through fairly healthy 350s (the factory dual cat system was 2.25", and added 10 hp over single 3" cat system). The Dynomax headers are still only 1-1/2" primaries, though, which would be restrictive on a 350 turning over 5000 RPM (but still better than factory manifolds). And, if not mandrel bent, would be more restrictive than a mandrel bent single 3" system.
85TPI400, you live in San Diego, right? It doesn't look like there is any provision for cats, and no mention of A.I.R. or O2 sensor on the headers. Those things could be worked around (graft two cats in the stock location, add A.I.R. pipes and O2 sensor fitting).
Dual 2.25" is adequate for most engines up through fairly healthy 350s (the factory dual cat system was 2.25", and added 10 hp over single 3" cat system). The Dynomax headers are still only 1-1/2" primaries, though, which would be restrictive on a 350 turning over 5000 RPM (but still better than factory manifolds). And, if not mandrel bent, would be more restrictive than a mandrel bent single 3" system.
85TPI400, you live in San Diego, right? It doesn't look like there is any provision for cats, and no mention of A.I.R. or O2 sensor on the headers. Those things could be worked around (graft two cats in the stock location, add A.I.R. pipes and O2 sensor fitting).
Thanks for the input,
I was just wondering what people knew about it! If I ever did use it I would have to use dual cats or single cat into a y pipe than to it to stay legal. I already have hooker headers and I have deceided to go with the Hooker cat back, unless anyone had something great to say about this system.
Thanks again,
Tony
I was just wondering what people knew about it! If I ever did use it I would have to use dual cats or single cat into a y pipe than to it to stay legal. I already have hooker headers and I have deceided to go with the Hooker cat back, unless anyone had something great to say about this system.
Thanks again,
Tony
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