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screwuphead
Dodge Dakota
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8/20/2006
10:32:49
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 Subject: Few Qustions
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Message:
Yesterday i added a 50mm Throttle Body from F&B to my Dakota. I now get a bit more whistle out from under the hood and i was wondering if that is normal? its only when i press on the gas and open it up a little. The other thing was when i was driving on the interstate i deiced to open it up a little when i wanted to pass someone, my RPM gage few up to around 5200rpms, i am hopeing my engines okay i was wondering what the limit was on the springs? Also i noticed that my engine sits at 1200rpms now rather then 800rpms, is that normal also?
Thanks in advance guys.
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bludak
Dodge Dakota
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8/20/2006
17:44:02
|  RE: Few Qustions
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Maybe you have a vacuum leak. Check your gasket and idle air control solenoid at the back of the TB. The O ring in there is troublesome at times and does not seal properly causing a whistling sound when revved up. Why the tach jumped up is beyond me, sounds like a freak thing. You may find the 50 mm to be a little large for the V6, causing you to loose some or all of your bottom end power. The V6 likes the 46 mm TB the best unless you are highly modified. Now I am sure that will spark a few comments.
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screwuphead
Dodge Dakota
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8/20/2006
21:00:42
| RE: Few Qustions
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Actually i havnt notice any lose in torque, if any it was very minmiual. I would like to put it on a dyno and see. thanks for the advice ill give it a shot.
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screwuphead
Dodge Dakota
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8/20/2006
21:02:33
| RE: Few Qustions
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Message:
I was just wondering, you were saying O ring, is there supposed to be an O ring inside that trottle body? cause there is none. i just have the idle air control solenoid that just slides in the back.
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works2long
Dodge Dakota
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8/20/2006
22:35:20
| RE: Few Qustions
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Message:
i have a dakota with 46 mm ported and polished gibson headers flowmaster super 40 series 8 mm wires roller rockers cam new springs push rods hydr lifters...........!!!!!!!! i still lost my bottom end 2
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works2long
Dodge Dakota
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8/20/2006
22:43:27
| RE: Few Qustions
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Message:
forgot the jetchip2 180 deg thermo put in a posi
lots of top end work on the motor best in the 1/4 mile 17.10 the 6 banger sucks im changing to a v8
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zzark
*GenII*
8/20/2006
23:32:32
| RE: Few Qustions
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Message:
Assuming you don't have a vacuum leak, for the 1200 idle rpm, you need to adjust the throttle plates to let in less air.
On the stock TB, there is a hidden screw.
Is there an adjustment on the F&B?
After an adjustment, if you did the TPS mod to .7 volts, you will need to go back and set the voltage.
zzark
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screwuphead
Dodge Dakota
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8/21/2006
01:43:10
| RE: Few Qustions
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Message:
I adjusted the linkage for the idealing. I never did the TPS mod. But i am still getting that whistle! UGH
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screwuphead
Dodge Dakota
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8/21/2006
14:24:24
| RE: Few Qustions
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Message:
I feel like a compete and total idoit, thats all i have to say!
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bludak
Dodge Dakota
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8/21/2006
14:42:57
| RE: Few Qustions
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Message:
There is an O ring that is on the Idle air control solenoid. If it is not there, you will get the whistle.
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J and J Auto
GenII
8/21/2006
21:35:29
| RE: Few Qustions
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Message:
the high idle is not normal
some of the F&B's come with the plates open to
far and you need to close them there is an allen
adjustment right where an idle screw would be on
an old carb
be careful here some also come with 2 allen screws
in the hole
scanner set IAC at 10 to 30 steps this needs to
be checked or it will never idle down and some
will serge up and down
Larry
J&J Auto
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screwuphead
Dodge Dakota
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8/21/2006
23:58:32
| RE: Few Qustions
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Message:
what do you mean scanner set IAC at 10 to 30 steps???
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J and J Auto
GenII
8/22/2006
08:59:20
| RE: Few Qustions
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Message:
Back of throttle body the idle air control
you need a scanner it will read how many steps
it is back and off the seat
there is a way to set this without a scanner
put your thumb over the round hole top of throttle
body and the rpm should drop about 100 200 rpm
hold your thumb over hole and adjust plates
this will get you right around 15 steps without
a scanner
looking from the front this hole is in the center
just behind the bores
Larry
J&J Auto
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screwuphead
Dodge Dakota
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8/22/2006
12:11:23
| RE: Few Qustions
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Message:
so i wanna set the plates (throttle body blades???) so i get an RPM of 100rpms to 200pms, this will mean i got 15 steps?! I always wanted a scanner, ill probably just end up buying that.
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screwuphead
Dodge Dakota
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8/22/2006
12:17:59
| RE: Few Qustions
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Message:
Hey Larry is this is the scanner that you recommand?!
http://store.summitracing.com/partdetail.asp?autofilter=1&part=AXY%2D2000&N=700+115&autoview=sku
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