Stock 04' KFX400 Before and After Results with HMF

**Mobile Dyno** · 02-19-2006, 05:42 AM

I had a customer that wanted a pm power package on his 04' Stock KFX 400. So I wanted to post the Before and After Results for everyone.

This is a Stock 04' KFX400.
Before Mods: Bone Stock with 18" Dyno Tires

After Mods: HMF Full Exhaust, TwinAir Powerflow Kit, Dynojet Jet kit, No Airbox Lid, also 18" Dyno Tires

Jetting: I ended up with 2.5turns out on the mixture screw, needle in the 3rd from top, 155main. I am at 312ft altitude.

Here are the Pics and Graphs...

Stock

**Mobile Dyno** · 02-19-2006, 05:44 AM

After

**Mobile Dyno** · 02-19-2006, 05:45 AM

Hp Graph

**Mobile Dyno** · 02-19-2006, 05:46 AM

Tq Graph. Look How Much TQ we gained on the low end

**Mobile Dyno** · 02-19-2006, 05:48 AM

Hp over speed. Remember this is with 18" Dyno Tires. With the stock 20"s it will do 75-76mph

**Mobile Dyno** · 02-19-2006, 05:49 AM

A/F. 155 Dynojet main

**Mobile Dyno** · 02-19-2006, 05:50 AM

Here is the Awesome part. Look How much Acceleration We picked up

Hp

**Mobile Dyno** · 02-19-2006, 05:51 AM

Tq

**Mobile Dyno** · 02-19-2006, 05:53 AM

Here is one to show the difference in the low end. This bike rips.

**Sandgod4** · 03-18-2006, 04:28 PM

Originally posted by Mobile Dyno
Here is one to show the difference in the low end. This bike rips. Oh, who got 32hp from the New LT-450r. I think something isn't right with that

Your dyno reads 5-7hp higher then KBR's.. A stock Z400 on KBR's dyno puts out 25hp.. No two dynos are alike..

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Stock 04' KFX400 Before and After Results with HMF

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