KDS new big and nasty head test by KBR

[KBR]

We had the opportunity to do some dyno tests the other day.
The machine we were had the opportunity to test on was a 869 cc 11:1 compression Rocket Factory kit with a T-rex +1mm head, Megacycle X2 cam, KDS bored TB (47), Dynatek Fuel controller, RCI 650 injector, Dynatek Ignition (all runs done on curve 2 as it comes on the box), Monster Dual Drag pipes, and a Velocity Intake.
It made a baseline of 74 hp and 62 ft/lbs.
We pulled the head off and swapped it out for the new KDS race head. We put the same cam, rocker arms, even valve springs in the new head. The only thing we changed besides the actual head and valves was the throttle body and the intake boot (which had been port matched my Kenny at KDS to match the flow of the new head).
We immediately dyno tested it (the Raptor never left the dyno, straps were tight the whole time).
It made a base line of 79.9 hp and 62 ft/lbs.
I feel like it was a great improvement from an already good running head, at over 5 hp and no significant loss in tq with a full race head.
To give you guys some perspective on the numbers compared to something else....
Jade had his machine dynoed at Rocket Factory and made 82 and came here and tested it right after and made 72. This might be able to help make better comparisons to some of the larger build numbers from their dyno. We also had another customer who did something very similar and had similar numbers and results.
I want to take the opportunity to thank Jade and Kenny from KDS for their help and for trusting us to be the ones to test this head on our dyno and trusting us with their work. The opportunity is greatly appreciated. It means a lot to us to be in the position to do this for these guys.
Please leave the shop bashing and internet loyalty fighting stuff somewhere else.
Please see our other thread on the intake testing.


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[RaptorRandy]

kudos to all involved     That's one hell of a nice gain....can't wait to see what that monster puts out with the new camshaft and a bump in compression 

[SUB454]

Thanks for all the info

[Kenny]

Thanks so much Kam!

[Krandall]

Damn. Kenny, you seem to have the secret recipe for these 700's!!!!! Great job on the head and Great Job Kam!!

[russ-russ]

Nice work on the head Kenny!  And thanks Kam for continuing to provide information to the raptor community, don't let the one or two loudmouths discourage you.  For every loudmouth, there are 20 people who read what you write and appreciate it, but never speak up to say so.  And thanks to Jade for providing a badass test mule for the dyno flogging.

[socalrappy700]

Kam, thank you so much for your hard work.  And thank you Kenny, for all that you have given this great sport.

[Kenny]

I get to deal with the coolest people in this business!!

[700crazzzynuttts]

Kenny is just simply the man when it comes to big power gains for the 700, He has done wonders for mine, thanks a bunch.

Kam, thanks for being willing to do these continueous tests for the actual proof of what these mods do for us.

Keep up the good work guys, love seeing this info.

[Krandall]

Can I ask Kenny. Was it just porting/Polishing or did you fill/reshape anything?

[RaptorRandy]

Can I ask Kenny. Was it just porting/Polishing or did you fill/reshape anything?

Not Kenny, but as I understand it and without divulging any of his tricks, he takes an existing CNC head and further works the short side radius, valve bowls and port roof as well as does his own muiti angle valve job 

[Kenny]

Thank you Randy..... This is the brilliant CNC head available from Racers Edge, with a couple of "tweaks". Anytime I find something that works, I share it with Racers Edge and they do the same for me. Anyone that wants this head, but can't stomach buying it from me, can most certainly buy it from them. I have to say that this head wasn't possible without them and I really feel the need to share the credit for it's success.

They have already hit 100+ horses with the same basic head
Here is a sneak peek that doesn't give away any tricks

[Krandall]

Well, I've seen pics like that done. Where are the Tricks!!!

[Kenny]

NO!! BAD KRANDALL!!

[Colorado700R]

NO!! BAD KRANDALL!!

Dude, kenny could explain this till he's ninety and we still won't get it, let it go