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New porting


sheerider11

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Looks to me like the two guys with this port got exactly what they wanted. Nice even torque/hp numbers all the way through. Wtf?

thats exactly what I wanted. If i wanted a high hp build, Paul turners wouldn't be my pipe choice.

I want tq. Something that seems to be overlooked now a days for some reason.

Like I said I'm not gonna put my girlfriend on a rocket that comes on like a switch while she's in the middle of Nj's 20 mile long whooped out trails.

I wanted something she could ride. She's not the best at shifting at the right time to keep the bike in the power band. So I had justin BUIL A BIKE TO HER NEEDS.

But wtf do I know. It's not a high hp dune machine up to HQ expectations.

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the stocker  350 mx bikes i have done all hit in the 60- 65hp range  were very rideable, and ran great..  the last purpose built t-6 motor i did was never dyno'd.  i built it for tq and it had it for sure. that particular port job takes more time than some of the "drag" ports i have done.. its an asston of work in the transfer tunnel and trans port area's

 

most the STOCK OUT THE BOX 450's around here yfz's are 42-45 hp.  

 

i'm not sure where i said someones work was "horrible???"   i'm not dogging anything, or anyones work  just not seeing where a 40hp banshee is "fun>????" even the shit 250r i raced back in the late 90's was in the 48hp range.. i mean my ole 421 stocker on gas was around 80hp and had in the 50-55ft lbs of tq..  in retrospect  that simple build made more TQ than these graphs are showing in hp!>!>

 

 

DDQ   i have already offer'd to do a mx motor for you anyways,.   i'm to fat and old to ride a mx bike anymore but would love to get one in the hands of someone who wants to mx one.  i will say this  if you not in shape its still going to be a handfull   BUT you would out accelerate most any 4 blow bike, it would be a predictable power not jerky or pipey.. and corner to corner/ jump predictablility is super important..  you should know that

 

if anyone i understand not "peak" hp and also that "girlfriends" dont need 70hp rockets.  hell my wife when she stepped up to the banshee i built here was in the 60hp range  she dogged it around in the trails and putted around at the dunes with it everywhere.. it was a nice broad hp.  i really wish i would have kept that graphs from all those years ago  the guy who dyno'd it was suprised that it was basically a platu line like you are posting  just in the higher hp ranges where a port would expect to be at.. her first one was a 350cc motor 65mm bore, ported, stock head stock reeds with 2 stage boyesen's and a modded trans  that was pretty much it. 

 

have you had the chance to dyno a bone stock banshee with maybe just basic good tune and an air box delete yet?? 

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infact if anyone wants to say that i personally build bike with "light switch power  can feel free to hit me up at the hq ride or at the dunes when i am there.   you can toss a leg over the 350 welded cyls i did and then tell me its a "light switch peak only " band.  it takes tq to get a 300lb fat fuck moving, especially on a 350cc motor.   hell my wife still trail rides it around  and its on alky.  ( or gas if i want  takes 15 minutes to convert it to pump gas,,  2 needle changes and a flip of a dyna switch to a gas curve.)

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DDQ keeps blabbing about peak numbers like he has a clue.

 

65hp is hardly a peak number and something achievable with little to no loss of low end along with changes that can help soften the hit of the pipe.

 

 

Surf is hardly the first guy to try for a flat powerband out of a 2 stroke. I can think of a couple builders for sure that can deliver you a race winner.

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You really need slicks to compare dyno runs between bikes. Ive tried to run nobbies years ago and it was very inaccurate. A set of slicks will prob raise numbers 10-20%. You can check for slippage with gear ratio/ rpm on left column and speed on lower column. If line on screen isn't flat it's slipping and numbers are skewed.

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I wish I had a dyno , seems like all people care about is graphs .

is that a bad thing? People simply want what they pay for.. If "x" builder claims a motor of any kind should produce "y" amount of power/delivery, then prove it. People should get what they are told. Besides, a dyno will help builders learn and produce even better work. Just sucks they are so expensive..
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I wish I had a dyno , seems like all people care about is graphs .

You can download a copy of photoshop in that case.

 

I really get tired of people asking what numbers my truck or bikes make or how fast they go. But whatever. It's conversation.

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I wish I had a dyno , seems like all people care about is graphs .

which is true to an extent. But not what I wanted. I started this thread to let people know that I GOT EXACTLY WHAT I ASKED FOR. I don't care about the hp this bike is making. I care about the delivery. Which is where I wanted the attention. I saw a dyno chart. That still no one has provided a matched chart to compare to DDQ. And I knew immediately that was what I wanted. People are taking this thread way off track.

 

Justin did my porting.

Cost was great. Communication was great. Turn around was great.

I'm a satisfied customer that will recommend him to anyone.

That's why I started this thread. Not to start a pissing match.

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