Dear Santa.......

[ironworker3]

Well, been workin hard savin my pennies (literally) and since I'm comin' up on one year of bein' off the sauce I think some reward is in order.....SO.........

I have an 07ER....pretty low hour...BUT I'm hopin it dosen't stay that way.

HRC...thats it. I do alot of woods and "technical" riding

Some questions: Please, ANYBODY chime in.

Has anyone or does anyone know how the CW cylinders are holding up @100mm? can you do a CW @100 and still be reliable?

Mixx, you still have the 98mm cylinders always in stock? (That is a great idea by the way)

Valves? What to do? I know the deal with the stock intakes...I've only shimmed them once...but....

If I take it to 470.....(lookin that way)....will I see much improvement with +1's for the $$$??

Carb? Will 1mm or 2 on the carb help? Will I notice?

Pipe.... up in the air..... Runnin HRC header with HMF for now. If it's make or break...I'll go with it

Head....boxin that baby up and sending it to Michigan

Piston.....14:1 go big or go home

HRC cam...it runs good and I have a buddy that wants it....don't know if the HCII is worth the $$

Help me make my Christmas list

[jwilson84]

CW cylinder can not be bored from what i under stand, id go big bore high comp 470? on 07s?, with the new head plus 1 valves all around ( ya dont wanna do it twice like i did ) , cam ur probally ok, exhaust, im sure you know the venom will be recommended , which is a good choice im gunna be getting one, and if ur gunna bore the carb make sure ya go atleast 42mm,

[Venom501KingR]

Id love to help but I really only know what makes 04/05 tick. Mixxer will hook it up the reliable way. You will end up with something reliable yet stout. Hang tight, im sure he'll pop in soon. Goodluck with the build!

[ironworker3]

Yes....470 on the 07's
For the carb...I dont want to lose any bottom end....If i go too big.
I'd just like the carb bore to be "proportionate" to the cc's if you catch my drift

[ironworker3]

Id love to help but I really only know what makes 04/05 tick. Mixxer will hook it up the reliable way. You will end up with something reliable yet stout. Hang tight, im sure he'll pop in soon. Goodluck with the build![/b]

I'm sure!.....just a little excited I'm finally gettin' to do it.
Hope I have some pennies left to send the suspension out.

[jwilson84]

well i know we got 2 different animals mines 05 urs is 07 but when i put a 43mm fcr on my bike it didnt lack power anywhere, maybe i should hush, and let the 06 up guys give info...lol

[stevefarris]

I'm not sure if you're aware or not, but the CW cylinders aren't out yet for the 06-up trx's. So it sounds like a 470.

[cnewt14]

not to hijack or anything but im kinda in the same boat im looking for more power ya know.. so some one please help him out lol and kill 2 birds with one stone

[mixxer]

CW hasn't released the 100mm cylinders for the 06 & up machines yet.... and the 100mm athena cylinder cracked the front skirt off on my own machine.....

the only 100mm cylinders i can recommend without reservation are the nmotion\jsr units...and the ice cube cylinders....both of which are high dollar units....

the very best return on power VS investment is always from a well built big bore setup.... which is pretty much a well built 450 with a big bore kit added.....

none of the add ons will rech their true power potential breathing through the stock ports...that is the limiter....

and it's best to pick what you want to end up with before you do the porting...since the porting can be matched to the bigger bore and bigger carb.....easier to do on one go around

the late HRC cam makes an incredible woods & mx cam.... i would think about a 12.25:1 compression 470 with that cam if i were you... i think you would really like it.....

awesome job on the will power to stay dry for one year... you should be super proud of yourself for that!!

[ironworker3]

CW hasn't released the 100mm cylinders for the 06 & up machines yet.... and the 100mm athena cylinder cracked the front skirt off on my own machine.....

the only 100mm cylinders i can recommend without reservation are the nmotion\jsr units...and the ice cube cylinders....both of which are high dollar units....

the very best return on power VS investment is always from a well built big bore setup.... which is pretty much a well built 450 with a big bore kit added.....

none of the add ons will rech their true power potential breathing through the stock ports...that is the limiter....

and it's best to pick what you want to end up with before you do the porting...since the porting can be matched to the bigger bore and bigger carb.....easier to do on one go around

the late HRC cam makes an incredible woods & mx cam.... i would think about a 12.25:1 compression 470 with that cam if i were you... i think you would really like it.....

awesome job on the will power to stay dry for one year... you should be super proud of yourself for that!![/b]

Thanks Mixxer.....much appreciated! Hasn't always been easy....but one day at a time...I've been good for almost a year.

Well, what I want to end up with is a super woods-machine that can rip it on the top-end too. I've pretty much settled on the 470 w p/p. I'd love a new fancy cylinder, but.......I'd like to save some money for the suspension....lol. You mentioned about the 12.25 piston.....Won't the 14:1 make more power everywhere? I don't mind runnin 105. Also, what's your opinion on going to a 42mm carb and +1 valves? Will 42mm on a 470 make for a softer bottom end....like slower throttle response? 'cause I know there is a limit there...I just don't know where...

[hondaman01]

Thanks Mixxer.....much appreciated! Hasn't always been easy....but one day at a time...I've been good for almost a year.

Well, what I want to end up with is a super woods-machine that can rip it on the top-end too. I've pretty much settled on the 470 w p/p. I'd love a new fancy cylinder, but.......I'd like to save some money for the suspension....lol. You mentioned about the 12.25 piston.....Won't the 14:1 make more power everywhere? I don't mind runnin 105. Also, what's your opinion on going to a 42mm carb and +1 valves? Will 42mm on a 470 make for a softer bottom end....like slower throttle response? 'cause I know there is a limit there...I just don't know where...
[/b]

42mm will be a great addition to the carb for 470 i believe a 43mm carb would be great as well, IMO about 44mm is the limit because 45mm would be too big but those are very rare, most ppl go with eithe a 42-42.5mm or a 43-43.5mm the 43mm carbs cost a little more bcause they require a aftermarket billet venturi

for a nice woods setup on the intake part a FCI intake would probably be best and +1 valves all around and 14:1 is very nice BUT getting 110 race gas becomes a very big pain when your in a pinch IMHO a venom exhaust is very nice BUT the HRC/ HMF combo you have makes for very good power you might pick up a little bit with the Venom exhaust maybe 1-2 hp BUT with the venom your going to get a ama legal exhaust thats spark arrested and sound limit approved in the quietest areas

[ironworker3]

I believe...... 1 bottle of Kemco per 5 gal of gas?......Dyno tested...builder approved!! ...lol

[mixxer]

the 42mm taperbored setups have incredible throttle response....no lag or loss anywhere...all gain....and are a super value to boot...

even though i make a living selling speed stuff... i never try to sell anyone more than they need...and that saves $$ to put into other areas that make you fast...like suspension...!

for a super responsive...mile wide powerband woods machine...that still hauls the mail on top end for open riding...here's my personal "i'm not trying to win a contest based on spending the most money" recipe:

1) for woods the stock airbox and filter on the 06 and up trx's is fine for both power and protection

2) taperbore the carb to 42mm...and since you are using the stock airbox, you wont need a Venom RAT adapter for the carb

3) Hot Cams Stg 2 cam....best\ widest powercurve...with razor sharp throttle response & early torque

4) if you keep the stock titanium intake valves you wont need to purchase an aftermarket spring kit to handle the raised rpm limit from the "green wire" CDI mod

5) stock valve sizes are great....if you really wanted to, a +1mm exhaust setup would run the top end out a bit futher past the peak power point...but you wouldn't really need it....personally...if the stock valves are still good, that's the way i would run....

6) Head porting....absolutely....more power everywhere...

7) 470 Big Bore Kit.... again... i love the earlier hit and greater torque.... you get more HP too...but the torque is what i love about it.....

8) compression ratio for the big bore kit.... the 12.25:1 Venom setups are awesome, they will absolutely beat out anyone else's race gas setups, but without needing race gas... the only way to beat them out is with a Venom 14.25:1 setup....and kemco @ 1qt to 5 gals pump gas is more than safe for that.... personally i'd pick the 12.25:1 470...and if i wanted a touch more compression, i would take the middle layer of the head gasket out and run @ 12.75:1....

9) Exhaust... no question here....full power while being legal on all db and S\A requirements right out of the box....lightest...best throttle response...earliest\ most torque....feels like you added another Big Bore kit....

that's my personal fav for biggest change with least $$ spent...and if you go pump gas 12.25:1...you save on gas $$ from then on too....

[ironworker3]

I guess my only question is.....keeping the stock valves.....I know those intakes are a time bomb....what to do about those? While I'm there I might as well get rid of those...yes?

Here's what I've "settled" on

470 w. p/p
42mm carb
keepin the HRC cam....From anything I've heard the HCII is VERY comperable to the HRC
Gotta go 14:1.....Cost of gas for the Quad isn't much of a factor to me....
Pipe

Anything I'm missing?

Thank you for your patience Mixxer....I like to do things right the first time...and knowledge is power

[wayne brady 1956]

sounds like the thing is gonna riiiipppppp! upgrading all that at once is gonna feel insane once you get on it