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Skeletor
Dodge Dakota
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1/08/2002
11:22:33
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 Subject: TB and the 4.7l
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Hey Bernd had said in an earlier thread that the Throttle body on the 2000 4.7 had a 65mm and the 2001 had a 67mm, when did these changes kick in, was it the model year or the physical, and how can I check mine? Also on the Dyno that Bernd posted it showed the RPM dropping after about 4500, what is the redline on these 4.7s?
2001 QC 4x4 SLT 4.7l 5pd 3.91
Homemade intake w/ and SMB Powerstack
more to come
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ZenDak
Dodge Dakota
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1/08/2002
12:25:43
|  RE: TB and the 4.7l
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If you mean Power dropping off at 4500, yes,,,if not sooner. My 4.7 winds up pretty fast,,but POWER starts dropping after about 3Krpm.
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Duner
Dodge Dakota
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1/08/2002
12:35:50
|  3k?
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ZenDak - Power starts dropping after 3k? That's where the power actually hits hardest isn't it? It's hard for me to remember what the stock power band really fealt like, but I remember it not dropping until 5k or so.
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Skeletor
Dodge Dakota
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1/08/2002
12:45:15
| RE: TB and the 4.7l
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Mine pulls past 3k easily. And with the new intake it really makes some music now between 2500 to 3500, but what is the redline? Also how do you tell the difference between the 65mm and the 67mm?
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Tad_W
Dodge Dakota
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1/08/2002
12:58:34
| RE: TB and the 4.7l
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THe part number is easily visible on the top of my 2000 TB. THere was a discussion about this about a year ago with the different part numbers.
Here is the link I found for this question.
https://www.dodgedakota.net/boards/per/46.html
2000 sport 4x4 qc 4.7 auto tran
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Skeletor
Dodge Dakota
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1/08/2002
13:04:57
| RE: TB and the 4.7l
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Thanks that will make it easly. The stamp on the top of the TB
53013241AC is a 65mm
53013163AA is a 68mm
Anyone yet on the redline?
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CThomp
Dodge Dakota
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1/08/2002
13:05:15
| RE: TB and the 4.7l
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I have a 2000 with the 65mm. I feel most of my power kick in around 3000rpms and drops off around 5000rpms. Redline is around 6000rpms I believe. Third gear is a kick.
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Duner
Dodge Dakota
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1/08/2002
13:27:09
| RE: TB and the 4.7l
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The size is also stamped directly onto the throttle blade.... but you have to have the TB off the engine to see it. (I know.... not much help - huh)
Stock rev-limiter is at 6000 rpm. That means that redline must be 5999? hehehe
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Skeletor
Dodge Dakota
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1/08/2002
14:06:14
| RE: TB and the 4.7l
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Thanks Duner, I will mark the 5999 on the tach.
Mine is the 68mm, I just looked at the stamp on the TB.
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D
Dodge Dakota
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1/08/2002
10:14:09
| RE: TB and the 4.7l
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If I have the 01 4.7 with the 68mm
53013163AA Throttle body, who can port it for
me, should I port it (add considerable horses)
and how much would it cost?
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Dr Q
DakotaEnthusiast
1/08/2002
18:05:11
| RE: TB and the 4.7l
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Hey Skeletor what's an SMB Powerstack?
I ported my own. I got luck and got some good increases in performance. Truth be known I didn't really know what I was doing, I just knew to stay away from the portion of the tb that interfaced with the valve, opened it up real good, ground down the screws and thined the shaft. Just be prepared to buy a new TB if you mess it up.
Q
Dr.Q
'01 Patriot Blue SLT RC 4.7 5sp 3.92 pegleg
0-60 @ 6.20sec.
1/4mi @ 14.75@97.1
Home Brew Airbox
K&N Drop In
Lakewood Traction Bars
Dremel TB Port and Polish
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Skeletor
Dodge Dakota
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1/08/2002
18:50:09
| RE: TB and the 4.7l
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I meant S&B Powerstack, it is an air filter. It use the same gauze material as K&N, but gives deeper pleats and more surface area.
http:\\www.S&B.com
and the picture of it is
< http://www.sbfilters.com/graphics/conical.gif >
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Skeletor
Dodge Dakota
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1/08/2002
19:02:18
| RE: TB and the 4.7l
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Oh just in case anyone wants the billet TB for your 4.7l Bruce at Flowmaster does have one for you, he sent me a picture, and the price is...
Here is his letter.
"My advertising is pretty weak if not non existent... We introduced the 4.7
line of TBs in November! Weve got 68mm, 70mm and 72mm 4.7TBs. They require
modifications to your air intake system (a high strength reinforced silicone
coupling is available from F&B to go from 3.5" to 4" TB inlet dia) Its an
incredibly easy installation! I recommend the 68mm TB for grand Cherokees
and off road mildly modded vehicles. The 70mm works great on lighter
vehicles like the Dakotas and will accommodate more mods as they become
available. The 72mm is for all out motors with fairly major mods including
computer re-programming!
The list price is $410.00, but we meet our distributors prices for factory
direct sales. I think the lowest distributor price now is $400.00 but I'm
not positive! I attached a picture of the 4.7 TB to this email
Thanks!
Bruce K Bridges
F&B Performance Engineered Products"
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ZenDak
Dodge Dakota
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1/08/2002
19:49:19
| RE: TB and the 4.7l
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Duner:
I'm sorry,,,I prefer not to think while I'm work,,I've got my dyno infront of me now. Max horse power occurred at 4800 rpm,,Max Tq at 2900rpm. Sorry for confusion.
That was bone stock on a nice warm/humid day. 197 ponies, and 267 ft/lb tq. With intake and exhaust,,not sure. G-tech be say'n low 15's. Aint hang'n w/no turbo'd 4.7's yet!
I'm taking her back to Colvin Automotive here in Austin next day off,,waiting for nice cool day, and get some new numbers.
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R.L.Stuart
Dodge Dakota
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1/08/2002
22:06:45
| RE: TB and the 4.7l
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I got the 70mm F&B and installed it truck runs GREAT but where is the vibration coming from feel like my foot is going to sleep,Is the plate to thin causing the vibration,I get it at part and WOT and on the 4.7 your stock air box will not work with the 70mm TB and try to find a 4in to 3in adapter!
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Skeletor
Dodge Dakota
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1/09/2002
12:34:55
| RE: TB and the 4.7l
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Bruce responded to me very quickly about the TB, so I would e-mail him and see what he says.
His address again is bbridges@flometrics.com
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