416 hp?

[j450rking]

what kind of numbers will i see with this setup?

je 10.8-1 416 kit

hotcam stag 2

port and polish

3 angle vavle job

k&n

dmc alien full exhaust

450r carb

um aluminum airbox

[j450rking]

bump

anything close to what i would see?

[GPracer2500]

Depends on the quality of the porting, I suppose. 35-38 maybe? I think you'd be pretty luck to get out of the 30's. Should be a nice build. I like that settup for a 400EX (not sure about the exhaust though).

[underpowered]

look in the dyno sections. most bikes set up similar see mid 30's or so. some hitting high 30's, very few see 40+.

[j450rking]

pappy told me the exhaust is about the same as a hmf

[GPracer2500]

Originally posted by j450rking
pappy told me the exhaust is about the same as a hmf

That could be. I just meant I don't know anything about it one way or the other.

[400exrider707]

The DMC alien is nothing like an HMF, it had dual pipes running into the silencer. There was nothing out there like it, and I dont think they sell it anymore. They were pretty sweet looking IMO, dont know how they fared power wise. Maybe Pappy was thinking of the new DMC afterburner or something?

[j450rking]

i ment power wise

[trxridr]

i think that the dmc alien is for two strokes only, mabey im wrong.

[chad502ex]

in my experience with 416EX's we make about 42hp...

here's a 426 we built making 47..

http://www.exriders.com/vbb/showthread.php?threadid=291086

[Chin_Chilla]

Very impressive Chad...so you made 47HP with only 41 FCR carb, TC gncc cam, 426 piston, LTE dualz and ported head?!?!?! I figured you'd need more than that to just break 40... let alone get 47!!!!! That motor had to have more work than what was mentioned...

[chad502ex]

Originally posted by Chin_Chilla
Very impressive Chad...so you made 47HP with only 41 FCR carb, TC gncc cam, 426 piston, LTE dualz and ported head?!?!?! I figured you'd need more than that to just break 40... let alone get 47!!!!! That motor had to have more work than what was mentioned...

nope. that engine was a eBay engine picked up real cheap. we were very pleased with the results.

[JOEX]

Originally posted by chad502ex
in my experience with 416EX's we make about 42hp...

here's a 426 we built making 47..

http://www.exriders.com/vbb/showthread.php?threadid=291086
I don't think your builds are typical though...;)

[chad502ex]

Originally posted by JOEX
I don't think your builds are typical though...;)

not typical?:confused:

[JOEX]

Originally posted by chad502ex
not typical?:confused:
I'm under the impression you guys have spent alot of time in the R&D department and not just slapping part together:)

[chad502ex]

Originally posted by JOEX
I'm under the impression you guys have spent alot of time in the R&D department and not just slapping part together:)

oh- yea. very true!

thanks for clarifying.:cool:

[chad502ex]

I was going through my digital dyno archive and came across this,...thought I'd post the proof.

not bad huh?

[GPracer2500]

^ That's awesome 400EX power. What carb, compression, cam, ect. was that running? Any other runs from that dyno to help put the numbers in perspective?

[GPracer2500]

Here's a fairly recent thread with a couple of 416 dyno tests: http://www.exriders.com/vbb/showthread.php?s=&threadid=309032

[chad502ex]

Originally posted by GPracer2500
^ That's awesome 400EX power. What carb, compression, cam, ect. was that running? Any other runs from that dyno to help put the numbers in perspective?

high man-hour port-flow work

11.5:1 JE

Looney-Toon exhaust

TC mid cam

41mm FCR

air filter

no base gasket


this is all

[GPracer2500]

I'm sure that EX puts a lot of ATV's in there place who aren't expecting it! :eek:

[Ace Sixx]

Originally posted by chad502ex
high man-hour port-flow work

11.5:1 JE

Looney-Toon exhaust

TC mid cam

41mm FCR

air filter

no base gasket


this is all

AWESOME numbers! Who did the port work?

[TURBO-530R]

The Port work on that head was done 5 years ago by Fast By Gast it is a full drag port set up. That head in another 416 setup with 40 mm lectron & sparks pipe a few years back did 43 hp to the ground and yes the motor 426 surprises allot of people.
I keep bugging Chad to put it on his flow bench and fine tune but he is so busy with his porting on 450s there has been no time. I hate to take up any more of his family time as he just did a full race port on my stock bore Drg piston / porting set up.
Jim