'Velocity' Performance Modules? Do they work?

ShipleyCSA · May 4, 2005

I found these advertized on the internet, they say that it will give 20 HP gain, and it only cost $40,...Does anyone know what the deal is with these?
www.20horsepower.com

GSequoia · May 4, 2005

Smells like bullshit to me.

That Website said:
[size=+1][font=Arial, Helvetica, sans-serif]Side-By-Side Comparison of Popular Performance Modifications[/font] [/size]

Modification

Est. Hp Gain

Retail Price

Cost Per HP
Underdrive Pulley
8 HP

$125

$15.63
AEM Cold Air Intake
8 HP

$200

$25.00
JET V-Force
10 HP

$270

$27.00
Single Ceramic Header
5 HP

$175

$35.00
Cat-Back Exhaust
10 HP

$400

$40.00
Turbo/Supercharger
100 HP

$2000

$20.00
Velocity Performance Module
20 HP

$29.99

$1.5

Now what I'm wondering is what about the cost per pound comparasion?

ShipleyCSA · May 4, 2005

It sounds iffy' but somewhat believeable

Fred · May 4, 2005

It probably just is hacked into the circuit for the manifold air temp or coolant temp, and increases the resistance so the ECU thinks it should increase fuel flow. Or it might be modifying the manifold air pressure signal to fool the ECU. Check the web, there are all kinds of homemade hacks out there that do the same thing.

Fred

ShipleyCSA · May 4, 2005

Well, are these 'hacks' worth buying if you want to increase performance, or do you think they'll just won't do a dang thing?

Fred · May 4, 2005

You won't get 20 HP, of that I'm sure. I wouldn't bother unless I had already improved the intake and exhaust. Having more gas to burn won't help much unless the engine can breath better than stock. It's only $30, I've wasted a hell of a lot more money than that over the 13 years I've owned my XJ. :laugh3:

Fred

Bent · May 4, 2005

Hmmm, Riverside, Ca. eh? I wonder how willing ol' Alex would be to have a customer pick one up in person? :gag:

Dr. Dyno · May 4, 2005

Fred said:
It probably just is hacked into the circuit for the manifold air temp and increases the resistance so the ECU thinks it should increase fuel flow.

That's exactly what I was thinking in which case the 20hp claim is bull. Here's the real deal:

http://www.angelfire.com/my/fan/IAT_sensor.html

JeepSpeed · May 4, 2005

Haha, come on guys, this is laughable. Read the BS on the cover page. Plus, there is no way it adjusts shift points. Save some money and some face and delete the link from your computer.

'Velocity' Performance Modules? Do they work?

ShipleyCSA

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GSequoia

Everyone says I'm a jerk.

ShipleyCSA

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Fred

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ShipleyCSA

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Fred

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Bent

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Dr. Dyno

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JeepSpeed

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