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Print in friendly format Send this term to a friend  Dana 36
This references the rear differential.

The Dana 36 was the smaller unit. It was used on all 1984 Corvettes, and all automatic Corvettes thru 1996...
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CentralCoaster High flow cat converter flow comparison
Senior Guru
San Diego, CA
9454 Posts
Member since:
2007/10/28 0:00



Offline
These are some cat comparisons I pulled off the internet awhile back.

Note that the numbers from one test should not be compared to the numbers in a different test. (Different flow benches, possibly different test pressures, different cat sizes, etc.) And we all know if it's posted on the internet in enough places, it becomes irrefutable truth!


Quote:

3" pipe...................... 806 cfm
2 1/2" pipe.................. 560 cfm
3" Random Tech. 703000....... 535 cfm
3" Dynatech DTC-79-400300.... 450 cfm
3" Pypes CVM13............... 450 cfm
3" Catco 6907............... 365 cfm




Quote:

2.5" cats @ 28" w.c.

FLP Cat ............ 440.5
Carsound Cat ....... 436.7
LS1 F-body OEM ..... 350.9 - 314.4
TTS Bullet Cat ..... 324.6


Quote:

from ls1camaro.net, not sure what size

CFM @ 1.5" hg

Random Tech #616806 .. 434 cfm
Car Sound #93009 ..... 428 cfm
Car Sound #94009 ..... 417 cfm
Walker #15147 ........ 391 cfm
Random Tech #616549 .. 355 cfm
Stock LS1 ............ 304 cfm
MAC LS1 .............. 293 cfm




Quote:

From an integra website...

CFM @ 28"w.c.

Test Pipe 2.25" ......... 407.1 cfm
Car Sound 2.25" ......... 342.7 cfm
Catco (std. core) 2.25" . 338.2 cfm
Random Tech 2.25" ....... 297.1 cfm
Catco (metal core) 2.25". 223.8 cfm


Catco (std. core) 2.5"... 388.0 cfm
Catco (metal core) 2.5".. 271.9 cfm



If you guys have more numbers to add, please do so...
Posted on: 2008/4/8 18:14
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1985 Z51, ZF6
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jsup Re: High flow cat converter flow comparison
Elite Guru
1778 Posts
Member since:
2005/9/9 0:00



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Where's Pypes? For $60 I'd be interested where they fall.
Posted on: 2008/4/8 21:10
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Parts don't make power, engines make power.
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