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CaribbeanKota
Dodge Dakota
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5/13/2002
22:13:07
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 Subject: I took my 3rd cat out
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I got it dome at a local muffler shop for 35 Bucks.
She's louder now the gibson cat back sounds real nice now...have not decided if there are improvements yet only cause i kept my foot in it all afternoon....Plus my pcm is a slow learner...lol who else has cut the 3rd out and what results for the 4.7L?
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CW
GenIII
5/13/2002
22:24:33
|  RE: I took my 3rd cat out
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Message:
Results are in the top end of the engine. You will be able to rev it higher. The sound is pretty cool.
2001 4.7HO RC 5sp 3.92 LSD
Click on thumbnail for mods.
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MikeD
R/T
5/13/2002
22:28:15
| RE: I took my 3rd cat out
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Message:
Like CW said lots of top end and not only did mine feel like it feved higher but faster through the RPM band.
~Mike~
'01 R/T
MP 2400 Stall, True Duals w/ Flowmaster 10 series, M-1 2bbl, F&B 52mm TB, Airaid, JBA headers, JBA 9mm wires, Kenne Bell Optimizer II, 180 t-stat, 3rd cat removed, Chrome R/T badges
Awating Intall: 2.02 Ported Magnum R/T Heads, Kammer Cam, 1.6 RR's
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handi2
GenIII
5/13/2002
22:57:13
| RE: I took my 3rd cat out
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Did you have any problem getting them to remove the last cat..? I assume there were no sensors involed.
http://photos.yahoo.com/handi254310
2002 Quad Cab SLT Plus 4.7 Every Available Option
Access Tonnoue Cover/Bedrug/360 Air Intakez/Jet Stage 2
180 Robertshaw/Roadmaster Active Suspension
Street Scene Grill Inserts
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CaribbeanKota
Dodge Dakota
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5/13/2002
23:01:56
| RE: I took my 3rd cat out
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not a problem all four sensors were on the 2 pre cats.....CW are you saying i'll only see gains at upper RPMs? what about MPG? Is she gonna drink more now?
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CW
GenIII
5/14/2002
08:59:25
| RE: I took my 3rd cat out
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Message:
Only if you hold your foot into it.Yes pretty much only in the upper RPM but I didn't loose any torque and the sound is much better.
2001 4.7HO RC 5sp 3.92 LSD
Click on thumbnail for mods.
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Nitro Junkie
R/T
5/14/2002
10:38:15
| RE: I took my 3rd cat out
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Message:
What year did they start with the 3 cats ??? Mine is a 2000 haven't looked under it lately. If there are three I will just ripp one out this weekend !!!!! :)
2000 R/T
Belltech 2"-3" Drop w/ Nitro Drop Shocks
40 Series Flowmaster Dumped Exhaust
8mm Taylor Spiro Pro wires w/ Autolite 3923's
Mopar Performance Distributor
180 T-Stat
Turn on I see red
Adrenaline crash and crack my head
Nitro Junkie paint me dead .....
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Clevite 77
Dodge Dakota
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5/14/2002
12:31:49
| RE: I took my 3rd cat out
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I think 2001 (Nitro Junkie)
Hey CW, since my exhaust change (remember I did it over the weekend) eliminated the 3rd cat, replaced the oe muffler with a 2 chamber 40 series flowmaster and out to duals with about 14"x 3.5 tips.
My question is I've got my foot into it, before it seemed like it would shift about..aaaa...5200 rpms. Now it seems to shift about 5400 rpms and the shift is much harder.
Is this just in my head or is it possible.
you know how it is ya throw together a new mod and now you think ya picked up 20 horse lol
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moparjoe20
Dodge Dakota
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5/14/2002
13:14:03
| RE: I took my 3rd cat out
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I'll tell you guys my experience with removing the Cat. My girlfriend has a '99 Club Cab with a 318/A500/ 3.55's , when I first took it to the track it ran a 10.46@66mph with a 2.23 60' in the 1/8(it was about 70 degrees that night)and had the stock 2.5" single pipe on it with a Dynomax Race Magnum and the stock Cat. Against the experts advise saying I would lose all my power I took it to an exhaust shop and had 2 1/4 dual exhaust with Glass packs and no cats installed. Next outing to the track it ran a 10.22@68mph in the 1/8(It was 82 degrees that night)and posted a best ever 2.08 60'. It may seem slow but it does have a 'glass lid , the spare was in place , the back seat is full of a speaker box , and it also has an open diff.
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CW
GenIII
5/14/2002
14:30:50
| RE: I took my 3rd cat out
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Message:
I doubt it would up the shift point on a auto but I am not surprized to hear that it feels firmer. There is now more power up there than there used to be.
2001 4.7HO RC 5sp 3.92 LSD
Click on thumbnail for mods.
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Clevite 77
Dodge Dakota
JOIN HERE
5/14/2002
16:15:34
| RE: I took my 3rd cat out
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Message:
moparjoe20, the push rod motors have a different power band, I had a 77 charger it had a single exhaust (nice and quiet, kinda granny like) so I put tru duals from the manifolds to a set of flows out to a set of turn downs, and that thing gained a lot of bottom end power, so I know what your talking about.
CW, thanks for clearing that up hehehe wait I think it did shift into 2nd @ 9800 rpms lol j/k
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John925
Dodge Dakota
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5/14/2002
16:24:04
| RE: I took my 3rd cat out
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I put a 40 series flowmaster where the stock one was and a custom turndown right below the shock and took out the 3rd cat and I'm a auto and it shifts at up to 5600 rpms.....
thats with it in drive and floored into the carpet
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handi2
GenIII
5/14/2002
21:17:21
| RE: I took my 3rd cat out
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Message:
My 02 4.7 shifts at 5500rpm's..Is this the same as most others in stock form?
http://photos.yahoo.com/handi254310
2002 Quad Cab SLT Plus 4.7 Every Available Option
Access Tonnoue Cover/Bedrug/360 Air Intakez/Jet Stage 2
180 Robertshaw/Roadmaster Active Suspension
Street Scene Grill Inserts
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CW
GenIII
5/14/2002
21:49:47
| RE: I took my 3rd cat out
IP: Logged
Message:
From the ones I have driven, yes.
2001 4.7HO RC 5sp 3.92 LSD
Click on thumbnail for mods.
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