| From | Message |
Blackdak01
Dodge Dakota
10/15/2001
20:46:20
|
 Subject: V8 TB on v6?
IP: Logged
Message:
Just wondering if you can just bolt on a V8 Throttle body onto a V6 or do you have to modify something?
thanx
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toxic13
Dodge Dakota
10/15/2001
20:56:13
| RE: V8 TB on v6?
IP: Logged
Message:
you need the V8 throttle cable and bracket ~$25 from dealer.
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Lesley
GenIII
10/15/2001
23:00:42
| RE: V8 TB on v6?
IP: Logged
Message:
Hey Blackdak01
I am doing that very thing. I bought the TB from a guy on moparchat, and the cable from a dodgedakotas.com friend...I'd like to polish it before install. I'll post on how it goes.
97 3.9 V6 Sport Club Cab. Black
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toxic13
Dodge Dakota
10/15/2001
23:08:44
| RE: V8 TB on v6?
IP: Logged
Message:
hey, i'm planning on eventually doing this too. let us know how it goes.
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bernd
*GenIII*
10/16/2001
10:20:35
| RE: V8 TB on v6?
IP: Logged
Message:
That's correct. For ease of installation, use the V8 throttle cable from the same year (or generation) Dakota. Otherwise, you'll need to drill out the disc on the linkage (for the throttle cable) and replace it with a Holley Ball-Stud.
Clean up the IAC solenoid as well while it's off the truck.
Once you've got it reinstalled, reset the PCM and start the truck. Do NOT press the accelerator pedal...let the PCM adjust the IAC first. (It may run rough for the first few seconds.) If you press the accelerator pedal, the initial TPS reference will be off and may cause either poor running or an off-idle bog. Let it idle for about 30 seconds and then turn the engine off. Restart and it should idle smooth from then on.
1997 Dodge Dakota SLT - V6
Supercharged @ 10# w/Nitrous
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Lesley
GenIII
10/16/2001
10:46:13
| RE: V8 TB on v6?
IP: Logged
Message:
Thanks Bernd! (V6 guru!)
97 3.9 V6 Sport Club Cab. Black
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Harvey
Dodge Dakota
10/16/2001
11:23:41
| RE: V8 TB on v6?
IP: Logged
Message:
I heard there is noticable gains at WOT. Has anyone noticed a drop in the lower RPMs?? I heard low end torque suffers. Any comments?? Any effects on MPH?? Thanks in advance.
'01 Sport QC, 3.9L V6, 5spd, 2wd, Volant intake, Gibson exhaust, MSD wires, Accel super coil
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BigG
*Mechanic*
10/16/2001
14:21:21
|  RE: V8 TB on v6?
IP: Logged
Message:
Got mine from Bernd, (In Kit form) sent it out to be polished. I will update with any info after I install it.
; )
2001, 3.9, 2wd, Auto, Club Cab, SLT Plus, Sport Suspension
Autolite 3923's, 180 T-Stat, Borg Warner Brass Cap & Rotor, Flowmaster Delta Flow 50 Cut In, Speedtweeks Stage 1 Kit, (Intense intake, 5.2 TB - Ported & Polished, Cable Kit & IAT Adjuster)
Long Island, New York
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Lesley
GenIII
10/16/2001
14:46:54
| RE: V8 TB on v6?
IP: Logged
Message:
Great! Haven't received mine yet. The more helpful advice, the better.
97 3.9 V6 Sport Club Cab. Black
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Lesley
GenIII
10/18/2001
13:48:06
| RE: V8 TB on v6?
IP: Logged
Message:
I just received my TB, a pleasant surprise is that the area surrounding the screws doesn't protrude into the bores like the ones I've seen on various how-to websites. Polishing it probably won't be too difficult with a little elbow grease, the challenge will be to remove those ridges. One site I looked at recommended using a vise and a hacksaw.
97 3.9 V6 Sport Club Cab. Black
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bernd
*GenIII*
10/19/2001
01:05:23
| RE: V8 TB on v6?
IP: Logged
Message:
Polishing the top and the bores won't gain you anything. Flometrics and Fastman have already proven this.
1997 Dodge Dakota SLT - V6
Supercharged @ 10# w/Nitrous
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Lesley
GenIII
10/19/2001
08:10:52
| RE: V8 TB on v6?
IP: Logged
Message:
Okay, so should I just plop it in the way it is? I've already increased bore size going with the V8, right?
97 3.9 V6 Sport Club Cab. Black
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mannyzamora
Dodge Dakota
11/12/2001
22:40:48
| RE: V8 TB on v6?
IP: Logged
Message:
For those of you getting ready to install a 8 trl bdy on a 6, I still havent heard one stitch on enlarging the opening on your intake.
When I installed my trl bdy on my 94 I enlarged the opening by an 1/8 of an inch, .125 for all you fellow techys. Reason being is that when I was first cheking it to see if everything lined up, and making sure the blades would not hit the intake, I noticed that the intake opening was going to have a ridge interfiring with the air path. just thought I would bring this point up.
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Lesley
GenIII
11/12/2001
22:50:30
| RE: V8 TB on v6?
IP: Logged
Message:
I've done a lot of reading & listening, I'm gonna put it on just the way it is.
97 3.9 V6 Sport Club Cab. Black. Auto 3.55
Quick D Intake,
Autolite 3923s with Borg Warner Wires
Awaiting Installation: JBA headers, V8 R/T TB,
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bernd
*GenIII*
11/13/2001
00:01:54
| RE: V8 TB on v6?
IP: Logged
Message:
Lesley: You only have to enlarge the bores on certain V6 manifolds. On the '96+ models, a 48mm fits without any grinding required and the 50mm will fit with only a slight, 45 degree cut around the edges.
Manny: If you flowed the TB with the MAP and IAC port open, that's how you got the higher CFM rating. Plug them to get a more accurate reading. It will reduce your max CFM rating by about 40CFM but, again, gives you a much more accurate reading. This would put your modified V8 TB right on par with the custom built ones.)
BTW: If anyone wants their modified TB's tested on a flowbench...go ahead and send them to us (SpeedTweaks) and we'll test them for you on a Superflow SF-1200 which we have regular access to.
1997 Dodge Dakota SLT - V6
Supercharged/Intercooled @ 10# w/Nitrous
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Lesley
GenIII
12/26/2001
01:08:29
| V6-V8 TB- Mopar Now! Article
IP: Logged
Message:
Hey Bernd, your input would be greatly appreciated.
Mopar Now! Issue #17 has an article on TB swaps, the focus of the article is on V8 billet upgrades, but there is a little bit of info on the V6 to V8 swap. In short, the article doesn't recommend the stock TB for the 3.9, to quote: "the stock V8 TB will bolt on the 3.9L, but it's way too big, completely killing off what little low-end torque the engine might have had to begin with." Also, the article referred to the stock 318/360 stock TB as being 50 mm in size. Most of the previous information I have read has the stock V8 TB at 48 mm. I bought mine from a 00 RT, and I am pretty sure it measured 50mm. Now, would that previous quote refer to an otherwise unmodified 3.9?
I had my Borla and the TB done at the same time last week, and yesterday was the first chance I've had to really do any highway driving. Once I hit the highway, it accelerated smoothly & quickly until just before it was wide open, at which time it started to chug violently. I let off the gas until it evened out again. This was repeated several times, but over the course of 4 hours of highway travel it evened out beautifully, and was very responsive. (PCM learning curve?) I'd have to say I am really pleased, although it was very windy and the road conditions were too poor for a really good comparison.
97 3.9 CC Sport. Black. Auto 3.55
Quick D Intake, JBA Stainless headers, Autolite 3923s, stainless Borla Turbo XL, V8 R/T TB,
Coming: FMS fuel injectors
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NJQCDak
GenIII
12/26/2001
19:32:44
| RE: V8 TB on v6?
IP: Logged
Message:
Lesley,
Congrats on the swap. I just installed a Flometrics Billet 48mm TB in my truck. I have yet to stomp on it. I'm letting the PCM re-learn. So far, everything is great. I read that the PCM can take about 100-200 miles (or a tank of gas) to re-learn. I guess 4 hours of driving did the trick.
'01 QC Sport, 3.9L V6, 5spd, 2wd, Volant Intake,
SS Gibson exhaust, MSD Wires, Accel Super Coil, NAPA Cap, Flometrics Billet 48mm TB
Soon: Autolites 3923s
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Lesley
GenIII
12/27/2001
00:59:29
| RE: V8 TB on v6?
IP: Logged
Message:
Hey all, just a quick update on my dak's TB transplant. After roughly 8 hours highway driving in two days it has adjusted to the new TB. Although I admittedly have limited mechanical background I can safely say that I have to dispute the Mopar Now! article. There was no loss of low-end torque, in fact I would say there is quite an improvement, the response was immediate in the lower range with no hesitation. Although I still couldn't go any faster than 110 - it spends a lot less time getting there. Whether my dak can go faster remains to be seen - I get a little freaked out at that speed and tend to back off. Although this was on a stretch with next to no traffic, I'm very reluctant to fart around on the highway and chance putting other drivers at risk as well.
97 3.9 CC Sport. Black. Auto 3.55
Quick D Intake, JBA Stainless headers, Autolite 3923s, stainless Borla Turbo XL, V8 R/T TB,
Coming: FMS fuel injectors
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Lesley
GenIII
12/27/2001
02:03:49
| RE: V8 TB on v6?
IP: Logged
Message:
Oh yeah - no difference in gas mileage! Still takes me half a tank to get from here to the other side of London Ontario, a 4 hour drive.
97 3.9 CC Sport. Black. Auto 3.55
Quick D Intake, JBA Stainless headers, Autolite 3923s, stainless Borla Turbo XL, V8 R/T TB,
Coming: FMS fuel injectors
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Lesley
GenIII
12/28/2001
00:15:34
| RE: V8 TB on v6?
IP: Logged
Message:
NJQC Dak, how do you like your Flometrics Billet? Is it as effective as it is beautiful? Your pcm must have figured it out by now - pretty scary stomping on the gas at first, mine went into convulsions.
97 3.9 CC Sport. Black. Auto 3.55
Quick D Intake, JBA Stainless headers, Autolite 3923s, stainless Borla Turbo XL, V8 R/T TB,
Coming: FMS fuel injectors
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CW
GenIII
12/28/2001
09:14:55
| RE: V8 TB on v6?
IP: Logged
Message:
Ehrenburgs tech is way better on the older stuff, like mopar action but is is a little shaky on the newer stuff. Brilliant guy though.
2001 4.7 5sp 3.92 LSD sport plus
Ported throttle body, IAT adjuster, 3" flowmaster cat back, TPS @ .76v, 4" cold air, Roadmaster active suspention.
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bernd
*GenIII*
12/28/2001
10:46:25
| RE: V8 TB on v6?
IP: Logged
Message:
Lesley,
Apparently, they don't know what the hell they're talking about. There is no low-end loss with the stock V8 TB on a V6 and it actually helps out in some cases where the factory V6 TB was a 42mm. I've talked with Mr Ehrenburg on a few items (4.7L TB swap and Thermostats for the Magnums) via email and he is a really sharp guy. Unfortunately, they don't properly test the mods they write about.
1997 Dodge Dakota SLT - V6
Supercharged/Intercooled @ 10# w/Nitrous
14.65 @ 95.01mph
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Lesley
GenIII
12/28/2001
11:01:32
| RE: V8 TB on v6?
IP: Logged
Message:
Thanks for the affirmation Bernd, I got the magazine for Christmas - right after making the highway trip with my truck going into convulsions. The return trip definitely proved that the swap was a huge success.
97 3.9 CC Sport. Black. Auto 3.55
Quick D Intake, JBA Stainless headers, Autolite 3923s, stainless Borla Turbo XL, V8 R/T TB,
Coming: FMS fuel injectors
|
NJQCDak
GenIII
12/28/2001
21:39:09
| RE: V8 TB on v6?
IP: Logged
Message:
Lesley,
The Flometrics is nice. I think I like the finish on the billet. My truck is a year old and I noticed that there is light oxidation on the stock aluminuim. The billet should not oxidize like the cast stuff. I took a ride today and some young kid in a black CC Dak tried to tempt me by reving his v8 and spinning his tires. Unfortunately, the road was crowded and I had my son strapped in the back. There's definitely more get up and go now. I like the billet even though she cost twice as much. I didn't have the PCM problem. I just took it easy for the first 250 miles.
How's the headers? Is it a lot louder? I remember my old 74 charger was louder with headers. I eventually bottomed out a few times resulting in a dented and ruptured tube. Is it worth putting in headers? I was thinking sometime next year or the following of the Alum oxide JBAs. Thanks, sorry I got long winded.
'01 QC Sport, 3.9L V6, 5spd, 2wd, Volant Intake,
SS Gibson exhaust, MSD Wires, Accel Super Coil, NAPA Cap, Flometrics Billet 48mm TB
Soon: Autolites 3923s
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Lesley
GenIII
12/28/2001
21:56:51
| RE: V8 TB on v6?
IP: Logged
Message:
The headers are great, no they are not loud. The sound is just a little bit richer & deeper, but not loud and obnoxious at all. The thing I really like about them? The engine compartment just looks so much cleaner and streamlined, especially with the removal of those aluminum shields.
97 3.9 CC Sport. Black. Auto 3.55
Quick D Intake, JBA Stainless headers, Autolite 3923s, stainless Borla Turbo XL, V8 R/T TB,
Coming: FMS fuel injectors
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NJQCDak
GenIII
12/29/2001
05:59:38
| RE: V8 TB on v6?
IP: Logged
Message:
Oops! I had a brain fart. I meant Ceramic coated JBA headers. Sorry.
'01 QC Sport, 3.9L V6, 5spd, 2wd, Volant Intake,
SS Gibson exhaust, MSD Wires, Accel Super Coil, NAPA Cap, Flometrics Billet 48mm TB
Soon: Autolites 3923s
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Andy VH
Dodge Dakota
JOIN HERE
1/09/2002
11:39:01
| RE: V8 TB on v6?
IP: Logged
Message:
Hey Lesley! No change in MPG with the larger throttle body? That's great! Mo-power/no-loss.
I was hoping the V8 TB might actually improve my highway/cruise mileage. But, I'm at the point if I can get more power without loosing MPG I'll go for it. How's the fuel injector project coming?
I'm very anxious to know. Thanks!
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Lesley
GenIII
1/09/2002
12:37:29
| RE: V8 TB on v6?
IP: Logged
Message:
Hey Andy
It's hard to say just how much the TB was responsible for the improvement in power because I got the Borla installed that morning, put the TB on that night. All I can say is that it is so hugely improved on the bottom end, it is like a different truck. Really responsive. I wouldn't say there is a mileage improvement, but I would think that given that it is now taking in more air, it is probably burning more fuel... if so, it isn't hugely noticeable. The injectors are going on as we speak ,I dropped the truck off this morning at my mechanics. (I know, wimped out - I had all the instructions, but I don't have a garage and it is COLD up here!) so I will post on how I like them.
I would definitely recommend the throttle upgrade - provided you balance it with a good muffler. Just my .02¢
97 3.9 CC Sport. Black. Auto 3.55
Quick D Intake, JBA Stainless headers, Autolite 3923s, stainless Borla Turbo XL, V8 R/T TB,
Awaiting Installation: FMS fuel injectors
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Lesley
GenIII
1/09/2002
17:34:04
| RE: V8 TB on v6?
IP: Logged
Message:
Hey guys: Injectors are on, and they are great. It seems that all my mods are really clicking in, it was the combination of all of them that did the trick. The injectors really seemed to help the mid-range, and the bottom-end is so much improved.
My mechanic took it for a test drive -he is from a long time racing family and a regular info contributor over on moparchat. He said he was really impressed with my truck!
97 3.9 CC Sport. Black. Auto 3.55
Quick D Intake, JBA Stainless headers, Autolite 3923s, stainless Borla Turbo XL, V8 R/T TB,
Awaiting Installation: FMS fuel injectors
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bernd
*GenIII*
1/10/2002
01:06:31
| RE: V8 TB on v6?
IP: Logged
Message:
Next...a blower! :)
1997 Dodge Dakota SLT - V6
Supercharged/Intercooled @ 10# w/Nitrous
14.65 @ 95.01mph
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Lesley
GenIII
1/10/2002
08:13:54
| RE: V8 TB on v6?
IP: Logged
Message:
LOL! Yeah, one of those cool old muscle style ones that poke right up through my hood!
97 3.9 CC Sport. Black. Auto 3.55
Quick D Intake, JBA Stainless headers, Autolite 3923s, stainless Borla Turbo XL, V8 R/T TB,
FMS fuel injectors
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Andy VH
Dodge Dakota
JOIN HERE
1/10/2002
10:56:17
| RE: V8 TB on v6?
IP: Logged
Message:
Hey Lesley, good to hear your project (TB, injectors, exhaust, etc) is giving you good results. The TB and injectors are my next steps. It's infectious!! Mo-power, mo-power, mo-power!
But let me know if you see any MPG gains as well.
By the way, I was in the London/Woodstock/Elora
area recently with my fiance (worked with my customers at Timberjack). We had a great time,
great food, REALLY good Sleeman's Steamer Beer!
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Lesley
GenIII
1/10/2002
12:29:39
| RE: V8 TB on v6?
IP: Logged
Message:
Yeah, London is a nice place to visit, my sis lives there.
All of those mods were great, but it took the combination of them to really make a difference, some of them weren't that effective on their own, ie: the headers... marginal immediate gains (nice sound though, and I LOVE the way they streamlined the engine bay.) I just did little bits at a time as I could afford it.
97 3.9 CC Sport. Black. Auto 3.55
Quick D Intake, JBA Stainless headers, Autolite 3923s, stainless Borla Turbo XL, V8 R/T TB,
FMS fuel injectors
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stealwings
Dodge Dakota
JOIN HERE
1/10/2002
12:38:28
| RE: V8 TB on v6?
IP: Logged
Message:
Right on Lesley. I'm glad it's all working out for you. You've made me want to go buy those injectors now. Didn't you use the 19# ones? Or did you go to a different rating? And how hard was it for your mechanic to change them out? Just some curious questions. Thanks, Greg
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Lesley
GenIII
1/10/2002
13:06:46
| RE: V8 TB on v6?
IP: Logged
Message:
Thanks. I stayed with the 19 lbs.. Bernd & other knowledgable guys recommend that it isn't necessary to go up higher unless you get a supercharger.
I thought about tackling the install myself (!) but I don't have a garage and the weather isn't the greatest up here... in the summer I could have taken my time. Here are the instructions courtesy of Blkbird from Moparchat:
"As far as the install, super easy. 4 bolts that hold the fuel rail down, lift up on both rails rocking them gently back and forth until the o-rings come up out of the intake(the throttle linkage may get in the way slightly, I worked around it, some may rather just pull the TB as easy as that is). Do one injector at a time, popping the clip off that holds it to the rail, rock it gently back and forth 'til it comes out. Lube the new injector slightly(I used WD40), insert back into the rail and re-install the clip. Then do the same eight...I mean 6 more times. Then lube the bottom o-rings slightly, slide all of them into their holes and rock gently back down into place, re-install the 4 fuel rail bolts and your done! Oh, and check for any leaks. "
97 3.9 CC Sport. Black. Auto 3.55
Quick D Intake, JBA Stainless headers, Autolite 3923s, stainless Borla Turbo XL, V8 R/T TB,
FMS fuel injectors
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stealwings
Dodge Dakota
JOIN HERE
1/10/2002
19:09:37
| RE: V8 TB on v6?
IP: Logged
Message:
Thanks for getting back to me and thanks again on the info. The injectors are ordered. I guess my next investment after the injectors is the headers. Hoping to find a pair cheap on E-bay. By the way if you ever think of getting an MSD ignition box don't do it with a Jet chip. The two were fighting each other on advancing the timing. They don't work well with each other. And if you don't mind me asking where in Canada are you located? I know it's like the Artic there and it's not somewhere I'd venture in the winter but last summer some friends and I went to Vancouver for a weekend. I had a good time but when they told me how cold it gets there in the winter, ouch. Too cold for this Californian. Thanks again, Greg
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Lesley
GenIII
1/10/2002
19:19:07
| RE: V8 TB on v6?
IP: Logged
Message:
Hey Greg, thanks for the tip on the Jet chip - I have heard enough about those to know that I'm not interested in them! Good luck with ebay - it has served me extremely well, those headers were a real find.
I'm in Ontario, and we are having a freakishly easy winter actually. It is warm enough that all the snow has melted, but it is grey, wet & dreary and my truck is constantly looking like an old dog that rolled in the mud. One of these days, I would like my next upgrade to be a garage!
97 3.9 CC Sport. Black. Auto 3.55
Quick D Intake, JBA Stainless headers, Autolite 3923s, stainless Borla Turbo XL, V8 R/T TB,
FMS fuel injectors
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stealwings
Dodge Dakota
JOIN HERE
1/10/2002
20:29:18
| RE: V8 TB on v6?
IP: Logged
Message:
LOL. I can understand that. I don't think even in California I'd do the work outside. It gets dark too early and the lights are gone. But there's no way I'd let someone else work on my truck. I took my truck to the Dodge dealership the other day because I couldn't figure out why the truck would die all the sudden and my idle was all messed up after installing the 50mm Throttle body. He looked at it on the computer and it's great if you have a check engine light come on but mine didn't. So after two hours of checking everything. He said it worked fine. Well, other than me figuring out that my MSD was interferring with the Jet chip I noticed that a plug come off on the intake manifold and it was sucking air. Put a new plug on and all my problems were solved. You'd think a dealer mechanic would find something so simple but no, he never would have found that problem unless the computer pointed to it for him. A car mechanic would never make it as an aircraft mechanic, he'd have to think.LOL. Greg
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Big O
Dodge Dakota
JOIN HERE
1/11/2002
01:07:26
| RE: V8 TB on v6?
IP: Logged
Message:
Will the swap work just as easily on a Gen 2 dakota?
93 specifically.
|
MESA
Dodge Dakota
JOIN HERE
1/11/2002
01:56:17
| RE: V8 TB on v6?
IP: Logged
Message:
I HAVE A REGULAR K&N SOULD I GET THE GEN II BEFORE I PUT THE TB
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MESA
Dodge Dakota
JOIN HERE
1/11/2002
01:56:21
| RE: V8 TB on v6?
IP: Logged
Message:
I HAVE A REGULAR K&N SOULD I GET THE GEN II BEFORE I PUT THE TB
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