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Daksmack
Dodge Dakota
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4/09/2003
19:42:57
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 Subject: TB size matters?
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Ive heard the 68mm TB is best for the '00 4.7. Can someone tell me why or this is even true?
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DDog84
Dodge Dakota
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4/09/2003
19:49:18
|  RE: TB size matters?
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on that note, i want to get the 50.29 mm TB from fastman for my 97 5.2. any recommendations or comments on that one or are there far better TB's.
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kota on 20s
GenIII
 
4/09/2003
21:11:06
| RE: TB size matters?
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the best size TB to go with depends on what you have done to the engine. bigger is not always better.
i switched from a 51.75 fastman to a 50mm F&B and i did notice a bit of a HP increase on the butt dyno.
whith eveything that i have on my engine, it still needs the velocity of the smaller TB
~Eric
Single cam, non-VTEC
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Daksmack
Dodge Dakota
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4/10/2003
17:15:05
| RE: TB size matters?
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Soooo, you "dont " know, huh?
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Buddy
Dodge Dakota
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4/10/2003
18:43:47
| RE: TB size matters?
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It's not,get a 70mm
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01Motorsport
Dodge Dakota
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4/10/2003
21:49:48
| RE: TB size matters?
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The factory TB was 65mm in 2000, 68mm in 2001. Will fit just fine on '00. Zoom zoom.
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kota on 20s
GenIII
4/11/2003
01:55:01
| RE: TB size matters?
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Message:
daksmack, if the "you dont know" thing was directed to me, NO I DONT KNOW. i have no idea what you have done to your engine, because you didnt give any info. so i wrote, go with what size will best suit your engines needs.
if you have, or are going to put a turbo or blower on it, get a 72mm. if you are just putting a air filter and a muffler on it and call it a day, put the smaller one on it
~Eric
Single cam, non-VTEC
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Texas Todd
Dodge Dakota
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4/11/2003
08:40:49
|  RE: TB size matters?
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'mine's bigger'!!!!!!
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Daksmack
Dodge Dakota
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4/11/2003
16:02:47
| RE: TB size matters?
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Chill out Kotaon20s... I did tell you what I had. I clearly said "what works well on a '00 4.7" didnt I? I didnt list any mods because I wanted know the answer based on stock figures. My question was asked because of the stock TB for '00 being 65mm and the '01 being 68mm. I just wanted to know why the two different sizes with the same HP output for both years. This would help me determine if going to the 68mm would require any mods (like a K&N cold air which I DO have) to keep from loosing torque.
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kota on 20s
GenIII
4/12/2003
02:15:14
| RE: TB size matters?
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Message:
>>> "I did tell you what I had. I clearly said "what works well on a '00 4.7" didnt I?"
well, duner has a 2000 4.7 too, but what would work good on his 12 sec 4.7, might not work as good for you.
your 1st statement sounded like you wanted the absolute best TB for a 4.7L (65mm vs 68mm vs 70m vs 72mm)
thats why i wrote my spew about you not listing mods
now it seems like you want to know why dodge changed the TB size in 2001.
which is it?
~Eric
Single cam, non-VTEC
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skeener
Dodge Dakota
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4/12/2003
10:29:23
| RE: TB size matters?
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but you don't want to get one so big that it putting more air in the engine than fuel.
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kota on 20s
GenIII
4/12/2003
10:32:28
| RE: TB size matters?
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that will not happen with just a TB switch. the O2 sensors will read it, and the pcm will richen up the mixture
~Eric
Single cam, non-VTEC
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j
GenIII
4/12/2003
14:16:40
| RE: TB size matters?
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I think the problem with too big a tb is intake velocity will slow down to the point where low rpm power will suffer. It's the old trade-off between better high rpm breathing and low rpm sluggishness.
2000 4.7 CC auto, clear corners, Magnaflow catback, Kenne Bell s/c.
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Daksmack
Dodge Dakota
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4/12/2003
18:20:09
| RE: TB size matters?
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Holy piss, gotta word my question like Im talking to an English teacher? never mind... gezz
I had more fun playin online games with 11 year olds cussing like sailors.
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kota on 20s
GenIII
4/12/2003
23:14:12
| RE: TB size matters?
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Message:
word it however you want. but if i were you, i would word it where people can understand WTF you are saying. if no one can understand what you are asking, how do you expect the answer you are looking for?
if you ever took a english class, they should have explained that to you. dosent matter if you are writing a book to be published, or posting on a public forum on the net. MAKE IT UNDERSTANDABLE.
or maby you were playing with 11 year olds too long, and picked up their bad habbits?
~Eric
Single cam, non-VTEC
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Daker777
Dodge Dakota
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4/13/2003
18:51:05
| RE: TB size matters?
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Wow, what a smart idea. Lets piss off a person who knows these engines inside and out and then get attitude with him when hes the only person who could actually help you. Kota ON 20s is one of the most knowledgable people on this board, most people gave up because you guys are freaking retards.
DakSMack, you really do have trouble communicating. He was going to help you, knows exactly what you need, and you gave him attitude. He was still willing to help you and you pissed on his boots again. Brilliant.
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typical
Dodge Dakota
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4/13/2003
19:12:03
| RE: TB size matters?
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typical BS on Dodgedakotas.com
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rtdkota
R/T
4/13/2003
19:50:36
| RE: TB size matters?
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Message:
"Ive heard the 68mm TB is best for the '00 4.7. Can someone tell me why or this is even true?"
Answer--- this isn't true to the statement above.
:)
Need more info to determine which is the 'correct' TB size to use--- F&B 70mm works best all around on a truck that is either stock+1 mod (exhaust, intake), and more (HO cams, EHO cams, KRC Cams, HO intake, NX)-- Go further than that-- the 72mm (Turbo, KB SC, 2 power adders, higher compression milled heads, etc. etc)
Sam
www.socaldakota.com
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kota on 20s
GenIII
4/14/2003
00:21:27
| RE: TB size matters?
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sam you RETARD!! he wanted to know why dodge went from a 65mm TB to a 68mm TB!!
cant you read his posts? falk man, get a clue!
if we keep posting the wrong info, he might just give up and go back to playing dungeon's & dragons with 11 yearolds
~Eric
Single cam, non-VTEC
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Texas Todd
Dodge Dakota
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4/14/2003
09:11:54
|  RE: TB size matters?
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First of all, I don't work for DC's R&D.
Second, I always heard that the 2000 4.7 was rated at 240hp, and the 2001+, at 235.
It has been said, that when they added the three cats in 2001, it cost them some HP, so they upped the TB size by 3mm, to a 68mm, to make some of the loss up.
Personally, I dremel tool ported my 68mm TB on my 2001. Oh yea, it pulls wheelies now! J/K
When people like CW, etc. used to post here, this was the general consensus from the group, regarding the size difference.
Somewhere, someone, in a town, in a galxy far, far away, posted that putting a 72mm TB on a stock motor dynoed an increase of 8hp at the wheels change.
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Daksmack
Dodge Dakota
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4/14/2003
14:38:04
| RE: TB size matters?
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Message:
Wait a damn minute, Im getting flamed for a question I asked that Kota20's says cant be answered due to lack of information.
Then rtdkota quotes me exactly and gives a respectable answer.
Then Kota20's flames him by saying that rtdkota got me wrong: "sam you RETARD!! he wanted to know why dodge went from a 65mm TB to a 68mm TB!! " Thats EXACTLY what I was asking.
So what is it Kota20's, do you not understand the question or are you just being a jerk? If you dont understand then dont reply.
And Daker777 "he knows these engines inside and out"? Doesnt he have a 5.2? And even if he does know them inside and out, I could care less if he just wants to play high and mighty behind a keyboard.
Im not here to argue with you, if you want to help then thank you. If you dont then dont. If I can help I will. But theres no need to get on a high horse and talk down to people just because you think you know more about 4.7's then them.
Ive been rodding for 20 years now, and came here to learn about something new. Hell, I can twist this damn Dakota in half if I started with a 5.2. But the 4.7 is new and Im here to listen. The last thing I want to do is get on everyones bad side. But hell, I can sit here and let Kota thrash me for no reason.
Scroll up and read my third post. I tryed to ask you to chill, I tryed to clerify the question, and I tryed to explain why I asked the question to start with.
So whats it gonna take? Gimme a hug....
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kota on 20s
GenIII
4/14/2003
15:26:58
| RE: TB size matters?
IP: Logged
Message:
LOL, i wasnt flaming sam...i was just giving him a hard time. he11, i just hung out with him on saturday.
if you read the 2nd post, the guy was asking a question about a TB for a 5.2L. i purposly made that broad statement to cover both questions on 2 totaly differant engines with one post.
"Then rtdkota quotes me exactly and gives a respectable answer."
yeah the 1st part of his answer was..." Need more info to determine which is the 'correct' TB size to use"
I SAID that in my 2nd post!
im here to help YOU. i when i said i need to know whats on your engine to give you the right recomendation, or ask you for info, you give me the "so you dont know huh?"
by the way, i do like to help people....when (Brig) daker777 blew his headgaskets to he11, i went to his house, and changed them for him. took 2 days of my time, and i didnt charge him a dime. why?... because i enjoy working on cars, and helping people. so dont think my goal here is to rag on you.
~Eric
Single cam, non-VTEC
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Daksmack
Dodge Dakota
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4/14/2003
19:13:26
| RE: TB size matters?
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Message:
Well, not sure how we got off on the wrong foot. I never got on here to argue. So If I gave anyone the wrong impression, sorry. Im not too big to say so. Hell, I say sorry to my wife everyday. Lets just call it even and have a beer. Id probably by a cat back before a TB anyways.
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rtdkota
R/T
4/14/2003
23:08:54
| RE: TB size matters?
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Message:
You can take 2- 68mms and make a 2 pack... Or is that a Tupak?
:)
www.socaldakota.com
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