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Jail Striped
Dodge Dakota
11/15/2001
01:50:39
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 Subject: I Messed up, Help
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Message:
I hava an 99 automatic 3.9 Dak. I've added the Air Aid intake kit, Power Aid throttle body spacer(what a waste), 180 degree therm., I notice a little performancem not bad for the money. But then I got a Gibson cat back system 2.5" in 3" out. Is it just my imagenation or did I loss power????
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Roby
Dodge Dakota
11/15/2001
02:08:37
|  RE: I Messed up, Help
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Message:
I knmow how you feel, when I got my exhaust I felt like I lost some power too, but I think it was all in my imagination. I think.
Roby
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DeepDak
Dodge Dakota
11/15/2001
06:35:53
| Sounds like you lost back pressure...
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Message:
The truck feels a little sluggish at low rpms right? The problem is that your not pushing enough air into the engine to offset the larger exhaust. A performance throttle body will help but then the intake manifold slows things down. I felt the way you do after my custom y-pipe and cat, not the same low end. My top end benefitted quite a bit; truck felt stronger than ever in the higher rpms. I got my low end back when I changed from a 30" diameter tire to a 28" (and slightly thinner); which got my rearend ratio back to 3.55.
Work a little more on getting more air in and less on air out. A TB with a port matched intake manifold with smoothed runners (perhaps cut shorter), performance cam, and ported heads w/5 angle valve job will do the trick! ;) Just some ideas.
Eli
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bernd
*GenIII*
11/15/2001
11:04:14
| RE: I Messed up, Help
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Message:
Jail Striped: You may have lost a little bit of bottom end as a larger exit system will move the powerband up to a higher RPM range. Not a big thing though...you can compensate with a modified TB (or V8 TB swap) which will give you the "punchy" feeling back from off-idle. (Also, use the TPS trick to get the throttle response a little better.)
Modifying the heads, cam, and intake will only move your powerband higher (cam depending in some cases) and will not fix a bottom end TQ loss.
On the tire size/gear ratio...3.90:1 with an automatic is just about perfect for the V6's.
1997 Dodge Dakota SLT - V6
Supercharged/Intercooled @ 10# w/Nitrous
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Jail Striped
Dodge Dakota
11/15/2001
22:46:50
| RE: I Messed up, Help
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Message:
Thanks for the info guys. Hey Bernd I think I'm getting the TB, you said the one from the 5.9? right? Will that come with everything I need to install it? And what is the TPS trick you were talking about and should I do it to the stock or the new TB?
Thanks again
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Lesley
GenIII
11/15/2001
22:57:32
| RE: I Messed up, Help
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Message:
I'm getting my JBA headers installed tomorrow morning. I just bought a Borla catback, should have it on within the month but I don't have the TB on yet. (I think the mail lost my cables). I figure the truck should be fairly balanced so far with what I'm getting done to it. Then, hopefully I get the TB on at the same time as the catback.
Does anyone know anything about, or have an opinion on Borla tips? Effective or mainly for show? (or noise - no thanks).
97 3.9 V6 Sport Club Cab. Black. Auto 3.55
Quick D Intake,
Autolite 3923s with Borg Warner Wires
Awaiting Installation: JBA headers, Borla catback V8 R/T TB,
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Jail Striped
Dodge Dakota
11/15/2001
23:02:15
| RE: I Messed up, Help
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Message:
lesley the cat back will sound nice!! For what I know tips don't make much difference unless you get the turn downs, they amplify the sound. Let me know what you think of the TB when you get it done.
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Lesley
GenIII
11/15/2001
23:09:14
| RE: I Messed up, Help
IP: Logged
Message:
Sure I will. I guess I will hold off on getting a nice looking tip, I've spent a pile of money lately.
97 3.9 V6 Sport Club Cab. Black. Auto 3.55
Quick D Intake,
Autolite 3923s with Borg Warner Wires
Awaiting Installation: stainless JBA headers, Borla catback
V8 R/T TB
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DeepDak
Dodge Dakota
11/16/2001
00:47:17
| Bernd...
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Message:
I plan on doing my heads,cam,intake (what I said in my post) sometime this summer. 1. Will I feel a big loss of bottom end plus a sweet gain of top end? or 2. Will I NOT feel a loss of bottom end and gain top?
Got my adjuster and t-stat two days ago, and will probably install this weekend. Thanks!
Eli
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bernd
*GenIII*
11/16/2001
01:32:15
| RE: I Messed up, Help
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Message:
Jail: The 5.2/5.9L throttle bodies are the same size. Yes, we supply the cable, gasket, and the (New) TB comes with a new TPS and IAC solenoid.
Deep: That would depend on the cam, intake and head modifications.
1997 Dodge Dakota SLT - V6
Supercharged/Intercooled @ 10# w/Nitrous
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DeepDak
Dodge Dakota
JOIN HERE
1/07/2004
18:05:35
| RE: I Messed up, Help
IP: Logged
Message:
I plan on doing my heads,cam,intake (what I said in my post) sometime this summer. 1. Will I feel a big loss of bottom end plus a sweet gain of top end? or 2. Will I NOT feel a loss of bottom end and gain top?
Got my adjuster and t-stat two days ago, and will probably install this weekend. Thanks!
Eli
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