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Unread 01-05-2003, 01:49 AM   #1
Swamp Boy
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1993 ZJ 
 
Join Date: Jan 2003
Location: New Orleans
Posts: 1,327
Poweraid

I have just got the poweraid throttle body spacer for my 5.2 does any body have one on?
Did it make a significant performance or fuel mileage difference?
Also any info on instalation would be appreciated.Probobly be installing middle of the week.


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Unread 01-05-2003, 09:45 AM   #2
gbgary
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from speedtweaks...

Throttle Body Spacers (Primarily the "Helix" style):

These spacers do not provide any gains in HP at all. They claim to increase TQ and MPG but we tested one and it gained nothing. The Dyno showed no gains in HP or TQ. We also had contacted one of the manufacturers for their comments on them and here's the direct quote (from email):

--------------------------------------------

From: AirAid Info
Subject: Re: AIRAID.COM Contact Form
Date: Fri, 09 Mar 2001 09:20:36 -0700

Dear Sir, thank you for your inquiry in our products. The spacer makes no HP on the Dyno. It makes all of it's power in torque in the low end. If you haven't noticed any power on the Dyno or the track then it's doing what it's supposed to. You would not see any gains down the 1/4 mile or increases on the Dyno. The idea of the spacer is to improve overall drivability and fuel mileage. In most cases when people install a bolt on part they expect better mileage and power, what happens is they are into the throttle a lot more than before trying to test performance and that's when the decrease in mileage happens.

Sincerely,

<Airaid Technician>
-------------------------------------------

Points to look at:

"The spacer makes no HP on the Dyno. It makes all of it's power in torque in the low end."
"If you haven't noticed any power on the Dyno or the track then it's doing what it's supposed to."
"The idea of the spacer is to improve overall drivability and fuel mileage."
So...it doesn't make any more HP, is not supposed to help in 1/4 mile performance (or on the Dyno), and is mainly for mileage and bottom end Torque. Well, Dyno's show TQ figures and there were no changes, mileage stayed the same, and 1/4 mile performance wasn't affected on the several others who have tried it (including us). They also are still not able to explain how the spacer keeps the swirl effect through the two turns (90 degree and 45 degree) in the intake plenum of the Dodge Ram/Dakota/Durango manifolds.

While the Throttle Body Spacer showed no gains on the 3.9/5.2/5.9L Magnum engines, the 4.7L engines have been reported to show noticeable gains from the spacer. Why? It's a much more efficient intake system with less restrictions than the Magnum engines. It may work just fine for the 4.7L crowd but we'll look into this at a later date for Dyno and long term MPG testing.
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Last edited by gbgary; 01-06-2003 at 06:51 PM..
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Unread 01-05-2003, 01:41 PM   #3
vngdh
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Purchased PowerTower on my 4.7L

Id be interested to see the results.

I did install a PowerTower on my jeep, however, I installed it at the same time as my K&N GenII cold air intake. So I couldn't tell you if the PT by itself improved fuel efficency. I am getting about .7-1 mpg improvement from both of these (most miles I drive are >55 mph and I *hate* stoplights) so the combination (certainly the K&N is responsible for most of this) has improved my fuel efficenty.

-Dan
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Unread 01-05-2003, 05:12 PM   #4
Swamp Boy
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Thanks I suppose I will install it anyway (since its paid for)
Maybe when I am at the local 4x4 shop I can show it off
at least it will look good on my engine if it does nothing else.
Further comments are welcome,
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Unread 01-05-2003, 10:04 PM   #5
StealthLtd
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hey gbgary. I like your Jeep man. I have a 2000 Jeep Grand Cherokee Limited. Its black exactly like yours and have black leather seats. I like the mesh you put behind your grill. Where'd you get that from and was it an easy install. Looks pretty sweet.
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Unread 01-06-2003, 07:15 PM   #6
gbgary
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Quote:
Originally posted by StealthLtd
hey gbgary. I like your Jeep man. I have a 2000 Jeep Grand Cherokee Limited. Its black exactly like yours and have black leather seats. I like the mesh you put behind your grill. Where'd you get that from and was it an easy install. Looks pretty sweet.
thanks, it's from stull. easy to install? so-so. don't remember who i got it from but it was shipped direct from stull.
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