14:1 piston on 06 450r..Chad what do you think?

[leadfoot_52]

Is anyone running a 14:1 comp. piston on their 06 450? I was thinking of putting one in mine-but i am not sure of the reliability of the crank, bearings, and rod. Will the stock lower half hold up to one of these pistons? or is it a bad idea?

[ghott]

A Mod over at the Org is running a 14:1 on his 06 ER Machine. I think he's also hittin it with a 20 or 25hp shot of Nitrous as well. Hasn't blown up on him yet, and he's had it in for a while.

[speedfreaksguy]

I am on my second 13.5:1 in my 04, stock crank and main bearings. No reliability issues.

[czrider263]

I have one in the build he did for me. 42min and no trouble LOL.

[chad502ex]

Originally posted by czrider263
I have one in the build he did for me. 42min and no trouble LOL.

42 minutes,,, lol. the piston won't be the issue if you have one. it'll be that 208. :D


high compression pistons are just fine. no worries about them. I've been using them for a long time in my own build and other builds. As long as you can afford race fuel, go with high compression piston. never use low octane pump fuel on high compression piston because you'll detonate and destroy your build.

[leadfoot_52]

Thanks Chad

[trick250r]

Originally posted by chad502ex
42 minutes,,, lol. the piston won't be the issue if you have one. it'll be that 208. :D


high compression pistons are just fine. no worries about them. I've been using them for a long time in my own build and other builds. As long as you can afford race fuel, go with high compression piston. never use low octane pump fuel on high compression piston because you'll detonate and destroy your build.

so as long as you run race fuel, a high comp piston will be fine with little or no lower mods?

[dobo450r]

Make sure you use a good quaility race gas of 110 or higher

[trick250r]

thanks bro

[chad502ex]

so as long as you run race fuel, a high comp piston will be fine with little or no lower mods?

yes. high compression is the most reliable hp you can install. for every 1 point of compression, the gains are ~3% increase in hp.

what determines the need for higher octane fuel is the piston squish and dynamic compression.

Piston squish is the thickness the flat part of the piston to the deck of the head including the head gasket. perfect squish is about 0.035". typical high compression shelf pistons squish thickness is about 0.065". squish is used to provide turbulance. turbulance across the piston squish zone is great for cooling. bigger squish reduces the turbulance on compression, raises temperatures, and will cause fuel to pre-ignite. higher octane fuel delays the pre-ignition.

Dynamic compression will be determined from the overlap of the camshaft installed. Static compression is the basis in predicting octane requirements, but static compression is also a non-operating specification. Dynamic compression in a running condition is what determines how much cylinder pressure there will be and will always lower than static.

[Flodies400ex]

where is the best place to get these pistons because i was wonderign of doing this my self but I dont really no what else I want to do to my bike and its down in my signature

[xsr_racing28c]

I'm also going to be running a 14.1 piston in my motor for next season, and am pretty excited to see the difference. I called up Janssen Motorsports today and ordered a 14.1 Baldwin piston, so if you want to give them a call i know they can get them..

Janssen Motorsports
920-766-3411

Thanks, Jay

[tooanxiousii]

How much was that piston ?

[ghott]

Originally posted by tooanxiousii
How much was that piston ?

I believe they retail for between $250-$300....not 100% sure tho.

[chad502ex]

Baldwin pistons are nice. I've gotten to like them more and more. I still prefer the CP piston features.... If only the CP piston was offered with at or over 14:1...

[xsr_racing28c]

Retail on the Baldwin one is like $239 i beleive.. of course i got it a bit cheaper.. hehe.. ~jay

[tooanxiousii]

Bladwin told me $250 today how are you getting it cheaper?

To those that already have this piston in there motor how do you like it and what kind of power did you get from it (dyno)

[xsr_racing28c]

I think in tucker rocky they are retailing for $239.. I get mine through a sponsor, so i get a discount

[tooanxiousii]

What kind of power is it putting out with that piston

[xsr_racing28c]

I'm not sure yet, cuz my motor is sent out to DRG -Chad502ex right now to get the piston installed complimented with a bunch of other goodies. I'm let you know in about 2 months though when i take it out on the ice.. ~Jay

[ghott]

tooanxiousii:

This should give you an idea of what to expect from a piston upgrade.

For each point up in compression, you should expect a 3% HP gain. So for an 06' Machine, which I believe have 39HP stock, a 3% gain would equal 1.17hp. Going from 12:1 (stock 06' compression) to 14:1 would most likely yield a 2.34hp gain.

Of course, with a big cam, and porting...the gains per compression point would probably be much higher as the actual compression ratio changes.

I'm sure the real gearhead here can chime in and break it down a little more than that. I believe there are two different types of compression...static and something else. Each is calculated differently.

Still learning..

[tooanxiousii]

What I have already waiting to instill is a hot cam stage 2 and I plan on sending to head out for port work so I can get all the power I can out of it.... The only hold up is what piston I want to but..

[chad502ex]

Originally posted by ghott
tooanxiousii:

This should give you an idea of what to expect from a piston upgrade.

For each point up in compression, you should expect a 3% HP gain. So for an 06' Machine, which I believe have 39HP stock, a 3% gain would equal 1.17hp. Going from 12:1 (stock 06' compression) to 14:1 would most likely yield a 2.34hp gain.

Of course, with a big cam, and porting...the gains per compression point would probably be much higher as the actual compression ratio changes.

I'm sure the real gearhead here can chime in and break it down a little more than that. I believe there are two different types of compression...static and something else. Each is calculated differently.

Still learning..

your right- you have been doing a good job picking up on a few things noteworthy... the other is dynamic compression ratio..

on 06 450Rs with 14:1, mid-to-top cam, nice pipe, porting, carb and filter i can get at least 54- if not more if i include other tricks of the trade... :macho

[ghott]

Where are you located in Maryland Chad?

[chad502ex]

Originally posted by ghott
Where are you located in Maryland Chad?

yes.

[czrider263]

we going for 57 soon LOL

[tooanxiousii]

Well I should find out Sunday because Saterday I'm putting it in ...CAME IN TODAY

[tooanxiousii]

Well it's back together with the 14:1 and I love it great power...
The hardest part about the hole job was the break in time ...
But it was all worth it in the end.

[animal1]

this may be a stupid question but its all new to me...if you up the compression and add a top end cam and do some porting, does this take away alot of low end? or does it depend on your mods? alota guys that i know that are running over 50 hp have mostly top end quads. i like having the tourque down low so is upping the compression a stupid idea for me? like i said this is new to me and i want to make sure i do this right. sorry if this is getting off topic too.

[Joe250x]

it's not a stupid question, just one that i can't answer in the detail that some others can but i will try to answer this. correct me if i am wrong

Raising your compression ratio is typically an all around the board power increase.
a top end cam will take away from the lower end.

the correct porting can make these two things work to there best potential. a common way to get better all around performance is to add a top end cam for more RPMs and bring the torque up with a high compression piston

I think that by just adding a higher compression ratio piston will help you with torque but a pipe, header, filter, and airbox lid mod of some kind are the first things to look in to

I hope this helps

[tooanxiousii]

That sounds about right ... You don't want to install a high compression piston with a stock bike ...
The piston will give you more low end ..
The hotcam stage two is not a high end cam

[animal1]

that helps, thanks.

[Elduner]

Originally posted by tooanxiousii
That sounds about right ... You don't want to install a high compression piston with a stock bike ...
The piston will give you more low end ..
The hotcam stage two is not a high end cam


Ive been running the 14.1 Baldwin on my stock bore for about 20 hours... Its an awesome piston... Power is great... Another thing is the 14.1 compression with a HC3 is just great....

Tooanxiousii why do you say that you wouldnt want to install a high compresion piston if your stock???
The piston gives you power all across the powerband...

HC2 is a mid top end cam.... with a stronger mid...
HC3 is a mid TOP end cam with a insane top end.....

I also run it on the bottle...
:macho

[tooanxiousii]

Because you want to install exhaust and free up the intake first!!!

Are you running the bottle with the 14:1 piston?
How do you like the stage 3 cam?