| From | Message |
Doug McCoach
Dodge Dakota
6/05/2001
14:05:06
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 Subject: 4.7L Throttle body SPacer
IP: Logged
Message:
I would like to build some history on the affect of using a TB spacer on the 4.7L V8 Magnum. I have heard not so good results using it on the 3.9L/5.2L/5.9L engines. I have one email from a happy customer & also have heard speculation that it could be afective on the fire breathing 4.7L dragon since it is so easily enhanced?? I personally have one in a box that I will install & add the results to this post. I bought it before I learned of this forum & probably would have waited if I knew there was so little evidence of its effectiveness. Any info, good or bad is welcome!
2000 QC 4x4 Auto 3.55's 4.7L V8
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alex
Dodge Dakota
6/05/2001
14:15:51
| RE: 4.7L Throttle body SPacer
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Message:
McCoach,
That'd be great. I've looked at them, and I don't see how it helps anyone with these new MPI intake manifolds. They all have such long runners and huge plenums, there's no way that the air continues to "spiral" as it travels thru all those bends. If you go to the SpeedTweaks site (it's usually a banner up above), Bernd has analyzed it on the dyno and it pretty much looks like a hokey piece of Crap. Not to scare you off the idea. I always like to hear real-world analysis from people on products rather than the fake quotes they include in the magazines.
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BMac
Dodge Dakota
6/06/2001
06:21:34
| RE: 4.7L Throttle body SPacer
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Message:
These things were designed for giving the fuel more time and space to better atomize when coming from the carburetor. They should work somewhat with throttle body fuel injection but not with MPI. The carbureted and throttle bodied engines have shorter runners. The spacer is used to create the effect of longer runners for added torque. If you lengthen the already long runners of the MPI manifold, you will surely lose some top end!
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Bernd
Gen III
6/06/2001
08:13:37
| RE: 4.7L Throttle body SPacer
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Message:
Hang on there....the TB Spacers are "crap" on the 3.9/5.2/5.9L Magnum Engines. The 4.7L uses a totally different intake system and, so far, the TB spacer seems to be working as it claims.
There's several posts on this board (as well as Mr. DakotaUSA receiving one for testing) that show no complaints about them from the 4.7L crowd.
1997 Dodge Dakota SLT - V6
Supercharged @ 10#
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Hawkeye
Dakota Enthusiast
6/06/2001
09:00:11
| RE: 4.7L Throttle body SPacer
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Message:
I put on my tb spacer a week ago and so far have been happy with it. Feels to me like it gave a bit more torque but not necessarily a lot of top end HP. The torque is what I need anyway. Mine is a pulling machine, not a racer. Hehe :-)
'00 QC 4x4
4.7 3.55 LSD
Jet Power
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johnc
Gen III
6/06/2001
09:11:30
| RE: 4.7L Throttle body SPacer
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Message:
Hawkeye or Doug(or both is OK, too),
OK, OK, What brand did you get, and where?
I guess it's time for a skeptic to try something new again(at least while I'm saving the big bucks for Bruce B).
jc
00 Sport,cc,4.7,4X4,auto,3.92sg,
Quickd air,Flowmaster,180 tstat,Jet II
68mm tb, Mobil 1, and a Bernd Box
jc
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johnc
Gen III
6/06/2001
12:58:48
| RE: 4.7L Throttle body SPacer
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Message:
Hawkeye,
Happened to think of another question.
Did you have to do anything special to the throttle cable to install the spacer???
Tx,
jc
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Hawkeye
Dakota Enthusiast
6/06/2001
13:45:22
| RE: 4.7L Throttle body SPacer
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Message:
The one I got is from Poweraid. It comes with all the hardware to move the Throttle cable brackets forward to keep everything the same. Just remember, the 4.7 doesnt really hit it's power band until around 3000 rpm's. in just normal everyday driving you wont really notice it. But, when you go to pull something, or someone, or are getting on the gas to say get on the expressway, thats when you will know that it is there. The truck wont feel like it is straining to get up and go. At least for me thats where I can feel it, when my rpm's get up there at 3000 and up. Also I got mine from 4 Wheel Parts Wholsalers as well as my Jet Module.
'00 QC 4x4
4.7 3.55 LSD
Jet Power
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Doug McCoach
Dodge Dakota
6/09/2001
16:40:55
| RE: 4.7L Throttle body SPacer
IP: Logged
Message:
The comments are very good, keep'em coming! I'm still on vacation & I still haven't installed my new TB spacer. Fyi, I got mine from Godfathercustoms.com, its called an Airmax TB spcaer mfg'd by StreetandPerformanceElectronics.com. They also make an air intake system that supposedly starts the air spinning effect in the air tube itself & is further enhanced by the spacer. Their air intake system is around $270 - ouch! Anyway, I just can't seem to bring myself to install the spacer- too skeptical! I did manage to take the forum's advice & make a custom air intake system out of 3" pvc & 3" 90 degree rubber elbows with a K&N air filter sitting in the space where the rubber flap was. Painted the white-pvc with black heat paint & the whole thing looks killer. It cost me less than $70 for everything. The 3" rubber elbow fits right up to the stock TB & it actually has enough flex/slack for a larger TB like the F&B 70mm when it comes out- killed two birds with one stone! The unknown is will the spacer work with the new F&B TB?? From the above comments it sounds like the spacer may actually improve low end torque like the mfg claims but at the cost of high end loss, they didn't mention that! My biggest complaints about the 4.7L is poor low end torque & it shifts too early. I am waiting for someone to make a programmer that will improve performance as well as shift points. It sounds like the TB spacer may just give me a little more bottom end. If I return it in the next few days I'll get a refund minus a restocking fee, if I install it, I can't return it, & if it doesn't work, well I wasted $97 bucks. Ok, lets hear it folks, do I bite the bullet & install the spacer & hope it works or send it back for a refund???
2000 QC 4x4 Auto 3.55's 4.7L V8
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Doug McCoach
Dodge Dakota
6/09/2001
17:01:03
| RE: 4.7L Throttle body SPacer
IP: Logged
Message:
Ok, here's a descripion of a no vote. I had called the people that I bought my TB spacer from. They couldn't answer my question about whether the TB sapcer really works. Instead they referred me to a person who supposedly knows HP technology real well. His response to using a TB spacer was this, "send it back - it doesn't work on fuel injected motors, just a waste of money." I had also asked him about getting a ram air hood & which is the best. He responded, "have you considered a shaker hood? I give out more of those than any others and they are made for the 4.7 now. It's patterned after the 70 cuda shaker hood. I have one on my r/t and gains at speed are in the 17 hp area, they really work and look great to. It has a complete air box mounted on your tb which pokes up through a hole in your hood when closed. It's awesome and I get all the looks at car shows and cruising. The shaker is by proglass, retail on them is $850, I get $100 off, $750 + avaerage ship $85. Ready to paint and run, I'll send you a pick of mine. Summary, send back the TB spacer & get a shaker hood, probably looking at $1000 with a paint job though-double ouch!!
2000 QC Auto 4x4 3.55's 4.7L V8
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Hawkeye
Dakota Enthusiast
6/09/2001
21:19:08
| RE: 4.7L Throttle body SPacer
IP: Logged
Message:
You are right about the low end torque. Thats where I feel mine made the most improvement. I dont feel though that it took anything away from the top end. It still feels just as strong there as before.
'00 QC 4x4
4.7 3.55 LSD
Jet Power
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Doug McCoach
Dodge Dakota
6/12/2001
02:01:40
| RE: 4.7L Throttle body SPacer
IP: Logged
Message:
Ok I did it, I sent back the TB spacer. Originally they told me it would cost me 30% for a restocking fee, then when I called for the return authorization they said they would reduce it to 20% restocking fee. Wasn't that nice of them? I'm not dropping a grand on a shaker hood either, sounds real real nice but I would have a hard time justifying to my wife & kids. Fyi: I saw an ad that said Hypertech was now carying a programmer for Dodge's - when I called it was premature, they do expect one but not for a while, oh well, we'll wait, what else are we going to do!
2000 QC 4x4 Auto 3.55's 4.7L V8
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juniork
Dodge Dakota
JOIN HERE
2/13/2002
17:54:55
| RE: 4.7L Throttle body SPacer
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Message:
Anybody notice a whstling soung after they put the TB spacer on?
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Bruce P
Dodge Dakota
JOIN HERE
2/13/2002
20:38:52
| 4.7L TB Spacer WASTE OF $$$
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Message:
Adding some space between the TB and the intake plenum has no scientific basis to change the airflow characteristics into the engine. The 4.7L V8 hemi has indipendant fuel injectors for each cylinder.
There is no dyno proof that these things actually improve performance. It is human nature to justify money spent to the point of THINKING we feel a difference. We are only human...after all
If it were that simple to improve performance... beleive me... the factory would have allready put a spacer in there. In some ways, they allready have... the intake runners on the 4.7L V8 hemi are EXTREMELY long compared to other simular engines. These long, small-diamater intake runners improve the "ramming" effect into the engine.
I wish I could sell somting for around $100 that bolts to an engine and does virtually NOTHING for performance. I guess the thought of stealing peoples money is just too crimanal to me.
At least a "cold air intake" has a scientific basis for why it improves performance. (colder air is more dense thus contains more oxygen to burn)
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scat pack
GenIII
2/14/2002
18:05:14
| RE: 4.7L Throttle body SPacer
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Message:
Since when does a shaker hood improve performance ? While those hoods look great, I thought it was pretty well accepted now that the increased drag actually hurt performance on those old E-bodies. Is anyone planning to dyno one of these spacers on a 4.7 and put this question to rest once and for all ?
2K RC 4.7 4x4
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Hawkeye
*GenIII*
2/14/2002
18:47:01
|  RE: 4.7L Throttle body SPacer
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Message:
Sorry to dissappoint you Bruce, but it did add some low end torque on mine. Dont knock it till you try it. It wasnt in my head either. I could tell a definite difference when pulling someone off road.
Urban Warrior
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Bruce P
Dodge Dakota
JOIN HERE
2/14/2002
21:01:49
| RE: 4.7L Throttle body SPacer
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Message:
I am not disapointed... If this thing REALLY helps lets see some real measurements....anyone?
In my years of engine experience the groundrule is to measure and measure again. Without/with/and then again without the modification in question.
The butt-dyno is very innacurate and is biased proportionally to how much one just spent on the new gadget ;-) Noone whats to admit that they wasted their money to the point of actually DEFENDING their poor spending decesion. (again... human nature)
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Nerve
Dodge Dakota
JOIN HERE
2/14/2002
21:35:46
|  RE: 4.7L Throttle body SPacer
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Message:
Measure twice, cut once...
Heard that somewhere...
Must be building wooden engines, LOL;-)
"If it were that simple to improve performance... beleive me... the factory would have allready put a spacer in there"... Listen to this everyone, there's no need to add performance accessories to your engines because, BELIEVE ME...cuckoo!
Someone says they noticed a definite improvement and he's got to put them down for trying to 'defend' their poor spending decision and he didn't even attempt the mod. Sounds like total prejudicial hogwash to me. Try it yourself bud, before you go putting people down that had the foresight to try it and experience the result for themselves. Your theories don't amount to Jack S#it. Take your BS somewhere else.
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quad47
Dodge Dakota
JOIN HERE
2/15/2002
13:19:17
| RE: 4.7L Throttle body SPacer
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Message:
I have to agree with Hawkeye on this one. I installed the Poweraid spacer on my '01 4.7 QC 4x2 and I also felt the extra bottom end that the product advertised. A day later i recieved the Airaid kit and installed that, man what a difference!! I can't say much about the added MPG's but that's probably because I can't keep my foot off the go pedal. The only other mods I've done so far are a Gibson cat-back and NGK plugs. I just found this site a couple days ago and I have to say I am very impressed. Am going to check into becoming a member ASAP.
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2THEXTRM
GenIII
2/15/2002
18:35:19
| RE: 4.7L Throttle body SPacer
IP: Logged
Message:
Can "feel" more pull over 2,000rpm with TB installed, didn't effect gas mileage at all, I was already stomping the gas since I installed my Flowmaster last year:) Does have a whistling noise that you can hear with the windows down but it doesn't bother me.
Flowmaster cat back, Air Raid CAD and homemade TB connect, Poweraid TB Spacer, Splitfire Plugs
3 inch body and 1.5 Block Lift, 33x11.50-16's
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matt
Dodge Dakota
JOIN HERE
1/23/2003
00:20:32
| RE: 4.7L Throttle body SPacer
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Message:
4.7 hemi? hemi?
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doug mccoach
Dodge Dakota
JOIN HERE
1/23/2003
09:42:06
| RE: 4.7L Throttle body SPacer
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Message:
Matt, I can't beleive DMC will install the 5.7L Hemi in the Durango but has no plans to put it in the Dakota even though there is proof there is plenty of room under the hood for it. Why in the world would they put that engine in a soccer mom's truck, sorry if I offended the soccer dad's but cmon.... the Dakota rules....
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matt
Dodge Dakota
JOIN HERE
1/23/2003
10:50:07
| RE: 4.7L Throttle body SPacer
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Message:
doug, i wasn't wondering about the new 5.7 hemi. someone on this forum is calling the 4.7 a hemi which it isn't as far as i know.... as for the new 5.7 hemi, i just ordered a ram 1500 4x4 with it, loaded to the nuts and the only thing its going to have to do with soccer is maybe doing donuts in a soccer field. dakotas do rule, i'm gonna miss mine.
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Pat
Dodge Dakota
JOIN HERE
1/23/2003
16:13:01
| RE: 4.7L Throttle body SPacer
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Message:
really your going to have the 5.7 in the 1500. When did this option occur for a 1500 to get the hemi as far as i know the 1500 comes with the 4.7 and 5.9 now why would they waste money on the new design and put the old engines in and then a year later put the hemi in. Sorry for all you dreamers that believe that the dak and durango are going to have the hemi but your wrong
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Buddy Jones
Dodge Dakota
JOIN HERE
1/23/2003
18:16:00
| RE: 4.7L Throttle body SPacer
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Message:
The Hemi's are in the 1500's as of November.DiamlerChrysler has no intentions of putting the Hemi in a Dakota but they do have intentions of putting one in the Durango.
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matt
Dodge Dakota
JOIN HERE
1/23/2003
22:07:35
| RE: 4.7L Throttle body SPacer
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my 1500 hemi should be here in about a month...cant wait.
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