Stroker vs Big bore 480 [Archive]

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Baxter

11-03-2006, 05:31 AM

I am looking for dyno charts for a stroker and big bore 480r.
Also which the best 480 ?:devil:

chad502ex

11-03-2006, 06:15 AM

ok, here is the only 04/05 480cc that i've seen.. kinda of a laugh at the power this 480cc is making, but here you are... many ppl are doing more with only 450cc, but that'll be another topic... LOL!!!:devil:

chad502ex

11-03-2006, 06:44 AM

here's an 06 480cc.... :rolleyes:

chad502ex

11-03-2006, 06:46 AM

here's a 530R i designed for a friend of mine (aka TURBO-530R)...

Baxter

11-03-2006, 07:53 AM

Is the first dyno chart a Stroker or big bore ?

chad502ex

11-03-2006, 08:07 AM

Originally posted by Baxter
Is the first dyno chart a Stroker or big bore ?

it says:

04/05 480cc.... it is a big bore...

the only stroker posted thus far is my 530R.

redrider05

11-03-2006, 01:23 PM

chad what would u consider a hot setup for a open bore parts wise? id like to do a 470 and im still desiding on parts??

chad502ex

11-03-2006, 02:18 PM

Originally posted by redrider05
chad what would u consider a hot setup for a open bore parts wise? id like to do a 470 and im still desiding on parts??

I like the MAX POWER 480 kits if i were to do a big bore....

Baxter

11-04-2006, 05:16 AM

I am thinking of going to 480cc and go with stroker crank and stock cylinder. Is this best for motocross and the engine is midly tuned with hrc cam etc.Are Falicon the best or would recommend some elses crank?

rap169

11-04-2006, 02:24 PM

if your running motocross watch your size. The predator 500 has 450 kitrs to downsize for racing the 450cc class. Im not sure if they have open classes like cross country races do.

ThumPIN_450R

11-04-2006, 04:55 PM

what do you think of the athena 480 Chad? I was also looking at a powroll 470 that seems interesting.

Baxter

11-06-2006, 02:44 AM

Here in the UK it is open class , it is a case of anythig goes.:devil:

chad502ex

11-06-2006, 06:08 AM

Originally posted by ThumPIN_450R
what do you think of the athena 480 Chad? I was also looking at a powroll 470 that seems interesting.

nice product, but no real experience with it...

buck naked-r

11-10-2006, 07:54 PM

has anyone beaten a 480 with a stock bore?>>>trx or yfz

pratts 450r

01-29-2007, 09:28 PM

buck naked-r....

do u have a stroker? id really like to make hp into the 60s. dont wanna have any trouble with the yamahas.

400exrider707

01-30-2007, 05:44 AM

Boring it out really doesn't seem as beneficial as going with a standard bore high compression.

Also the TRX motor is already oversquare so stroking it IMO seems like the better route if you were to do anything...

rap169

01-30-2007, 01:27 PM

just put a high compression 480 in mine...seems to have gobs of torque. Dont know if its from the big bore or the compression, but i havnet got a chance to open her up yet. But so far its pretty snotty.

sandmanblue

01-30-2007, 01:45 PM

Originally posted by 400exrider707
Boring it out really doesn't seem as beneficial as going with a standard bore high compression.

Also the TRX motor is already oversquare so stroking it IMO seems like the better route if you were to do anything...

Wait until mine hits the dyno in a couple weeks. 477 at 14.5:1, ported, HC2 and a couple of other little things. You can't expect a 30 cc increase to make a ton of power over a stock bore. Besides, peak power isn't the whole story anyway. A WIIIDDDEEE powerband is always a better choice for the average rider.

Mine's not gonna run with a stroker, but then again, I didn't spend a ton on the motor either...

It's pretty ridiculous to compare a $900 480 running a mild HotCam 2 to a $3500 stroker build running a much wilder cam. Completely different animals.

You might as well use a 70 hp stock bore build that Dasa has as a comparison too... Except that the Dasa build would cost a lot more than $3500..... That is, if you wanted to ask which is better, stock bore, BB or stroker and use dyno runs to prove your point.

400exrider707

01-30-2007, 01:56 PM

Originally posted by sandmanblue
Wait until mine hits the dyno in a couple weeks. 477 at 14.5:1, ported, HC2 and a couple of other little things. You can't expect a 30 cc increase to make a ton of power over a stock bore. Besides, peak power isn't the whole story anyway. A WIIIDDDEEE powerband is always a better choice for the average rider.

Mine's not gonna run with a stroker, but then again, I didn't spend a ton on the motor either...

It's pretty ridiculous to compare a $900 480 running a mild HotCam 2 to a $3500 stroker build running a much wilder cam. Completely different animals.

You might as well use a 70 hp stock bore build that Dasa has as a comparison too... Except that the Dasa build would cost a lot more than $3500..... That is, if you wanted to ask which is better, stock bore, BB or stroker and use dyno runs to prove your point.

Im not disagreeing, I just think the motor responds better to stroking.

Sounds like yours should be a pretty big monster!! Have you looked at any other cams or are you set on the HCS2?

Also where have you seen stock bore 70HP 450Rs? I would love to see a dyno on that!:eek2:

ghott

01-30-2007, 02:05 PM

sandmanblue

01-30-2007, 03:28 PM

Originally posted by 400exrider707
Im not disagreeing, I just think the motor responds better to stroking.

Sounds like yours should be a pretty big monster!! Have you looked at any other cams or are you set on the HCS2?

Also where have you seen stock bore 70HP 450Rs? I would love to see a dyno on that!:eek2:

I don't disagree with the stroker making more power, but it has a huge cost differential. That's all I'm pointing out.

The comparison is only valid if costs, reliability and maintenance are included. If you look at the Dasa 70 hp stock bore, you have a very maintenance intensive machine with a custom designed cylinder head. You would be amazed at what a pro race motor like that would cost. Great power, but expensive... That's just the way it is. Same could be said for the stroker discussed above. I don't think there is any arguing that a 63 hp stroker trx is going to put more stress on a lot of parts...

Power is great, but at some point you have to wonder if modding a 450 is worth it, or should you just ante up and go with a 700 or something like that.