Porting knowledge

2 Stroke Beast
Edited Date/Time 11/4/2014 5:36am
Does anyone know the basic knowledge of what to do to the transfer ports to change the power curve I tried to look it up and got nothing any help Thanks danny
|
stillwelding
Profile picture for user stillwelding
Posts
3237
Joined
1/22/2007
Location
Santa Clarita, CA, USA
stillwelding 10/28/2014 4:01pm
10/28/2014 4:01pm
2 Stroke Beast wrote:
Does anyone know the basic knowledge of what to do to the transfer ports to change the power curve I tried to look it up and...
Does anyone know the basic knowledge of what to do to the transfer ports to change the power curve I tried to look it up and got nothing any help Thanks danny
PDF file of "Gordon Jennings 2 stroke tuners handbook".

http://www.amrca.com/tech/tuners.pdf
lumpy790
Profile picture for user lumpy790
Posts
11618
Joined
9/18/2007
Location
York, SC, USA
lumpy790 10/28/2014 4:04pm
10/28/2014 4:04pm
Eric Gorr
2 Stroke Beast 10/28/2014 4:08pm
10/28/2014 4:08pm
2 Stroke Beast wrote:
Does anyone know the basic knowledge of what to do to the transfer ports to change the power curve I tried to look it up and...
Does anyone know the basic knowledge of what to do to the transfer ports to change the power curve I tried to look it up and got nothing any help Thanks danny
stillwelding wrote:
PDF file of "Gordon Jennings 2 stroke tuners handbook".

http://www.amrca.com/tech/tuners.pdf
wow thanks
stillwelding
Profile picture for user stillwelding
Posts
3237
Joined
1/22/2007
Location
Santa Clarita, CA, USA
stillwelding 10/28/2014 4:10pm
10/28/2014 4:10pm
2 Stroke Beast wrote:
Does anyone know the basic knowledge of what to do to the transfer ports to change the power curve I tried to look it up and...
Does anyone know the basic knowledge of what to do to the transfer ports to change the power curve I tried to look it up and got nothing any help Thanks danny
stillwelding wrote:
PDF file of "Gordon Jennings 2 stroke tuners handbook".

http://www.amrca.com/tech/tuners.pdf
2 Stroke Beast wrote:
wow thanks
You can read that thing for years. R.I.P. Gordon Jennings.

The Shop

See All »
Jakes Dad
Profile picture for user Jakes Dad
Posts
1864
Joined
6/22/2009
Location
Brooksville, FL, USA
Jakes Dad 10/28/2014 4:12pm
10/28/2014 4:12pm
Some of the best info out there.
slipdog
Profile picture for user slipdog
Posts
10054
Joined
7/25/2009
Location
Nor Cal, CA, USA
slipdog 10/28/2014 4:35pm
10/28/2014 4:35pm
lumpy790 wrote:
Eric Gorr
Linky no worky, bro...
lumpy790
Profile picture for user lumpy790
Posts
11618
Joined
9/18/2007
Location
York, SC, USA
lumpy790 10/29/2014 8:37am
10/29/2014 8:37am
lumpy790 wrote:
Eric Gorr
slipdog wrote:
Linky no worky, bro...
its was not a link....bro...

Seekers of knowledge need to find their own path to knowledge......or pay someone with said knowledge and ability.

porting tools $1000's
porting knowledge Priceless.
one oops .... cylinder becomes a door stop.

It is usually cheaper to pay a professional.
Jakes Dad
Profile picture for user Jakes Dad
Posts
1864
Joined
6/22/2009
Location
Brooksville, FL, USA
Jakes Dad 10/29/2014 8:47am
10/29/2014 8:47am Edited Date/Time 10/29/2014 8:48am
lumpy790 wrote:
Eric Gorr
slipdog wrote:
Linky no worky, bro...
lumpy790 wrote:
its was not a link....bro... Seekers of knowledge need to find their own path to knowledge......or pay someone with said knowledge and ability. porting tools $1000's...
its was not a link....bro...

Seekers of knowledge need to find their own path to knowledge......or pay someone with said knowledge and ability.

porting tools $1000's
porting knowledge Priceless.
one oops .... cylinder becomes a door stop.

It is usually cheaper to pay a professional.
ding ding ding!!!

www.tdc2strokeperformance.com
RMT
Profile picture for user RMT
Posts
1269
Joined
8/16/2006
Location
Chicagoland, IL, USA
RMT 10/29/2014 8:53am
10/29/2014 8:53am Edited Date/Time 10/29/2014 8:55am
lumpy790 wrote:
its was not a link....bro... Seekers of knowledge need to find their own path to knowledge......or pay someone with said knowledge and ability. porting tools $1000's...
its was not a link....bro...

Seekers of knowledge need to find their own path to knowledge......or pay someone with said knowledge and ability.

porting tools $1000's
porting knowledge Priceless.
one oops .... cylinder becomes a door stop.

It is usually cheaper to pay a professional.
Or you could have just posted the link and saved us all the sermon. Wink

http://www.eric-gorr.com
O___o
Profile picture for user O___o
Posts
730
Joined
9/25/2014
Location
CA
O___o 10/29/2014 9:10am
10/29/2014 9:10am
lumpy790 wrote:
Eric Gorr
slipdog wrote:
Linky no worky, bro...
lumpy790 wrote:
its was not a link....bro... Seekers of knowledge need to find their own path to knowledge......or pay someone with said knowledge and ability. porting tools $1000's...
its was not a link....bro...

Seekers of knowledge need to find their own path to knowledge......or pay someone with said knowledge and ability.

porting tools $1000's
porting knowledge Priceless.
one oops .... cylinder becomes a door stop.

It is usually cheaper to pay a professional.
yea, absolutely, then you can get your cylinder back that was done by one of his "lackeys", looks like shit, and has the powervalve re-installed incorrectly, that you waited on for 2 months for. but hey, he can't blame millenium for the wait times anymore.
2 Stroke Beast 10/29/2014 9:15am
10/29/2014 9:15am
slipdog wrote:
Linky no worky, bro...
lumpy790 wrote:
its was not a link....bro... Seekers of knowledge need to find their own path to knowledge......or pay someone with said knowledge and ability. porting tools $1000's...
its was not a link....bro...

Seekers of knowledge need to find their own path to knowledge......or pay someone with said knowledge and ability.

porting tools $1000's
porting knowledge Priceless.
one oops .... cylinder becomes a door stop.

It is usually cheaper to pay a professional.
O___o wrote:
yea, absolutely, then you can get your cylinder back that was done by one of his "lackeys", looks like shit, and has the powervalve re-installed incorrectly...
yea, absolutely, then you can get your cylinder back that was done by one of his "lackeys", looks like shit, and has the powervalve re-installed incorrectly, that you waited on for 2 months for. but hey, he can't blame millenium for the wait times anymore.
? what do you mean Ive always heard millenium was good did you have a problem with them do tell
O___o
Profile picture for user O___o
Posts
730
Joined
9/25/2014
Location
CA
O___o 10/29/2014 9:18am
10/29/2014 9:18am
lumpy790 wrote:
its was not a link....bro... Seekers of knowledge need to find their own path to knowledge......or pay someone with said knowledge and ability. porting tools $1000's...
its was not a link....bro...

Seekers of knowledge need to find their own path to knowledge......or pay someone with said knowledge and ability.

porting tools $1000's
porting knowledge Priceless.
one oops .... cylinder becomes a door stop.

It is usually cheaper to pay a professional.
O___o wrote:
yea, absolutely, then you can get your cylinder back that was done by one of his "lackeys", looks like shit, and has the powervalve re-installed incorrectly...
yea, absolutely, then you can get your cylinder back that was done by one of his "lackeys", looks like shit, and has the powervalve re-installed incorrectly, that you waited on for 2 months for. but hey, he can't blame millenium for the wait times anymore.
2 Stroke Beast wrote:
? what do you mean Ive always heard millenium was good did you have a problem with them do tell
in the old days, Eric Gorr did his own work through his own comapny called Forward Motion. While his knowledge is amazing, his business practices weren't. this is usually the case with craftsman/tradesman. Either you're a craftsman or you're a businessman but rarely are you both.

now, he's in-house with millenium (whom he used to outsource his plating to) and is able to keep a better return timeframe.
2 Stroke Beast 10/29/2014 9:20am
10/29/2014 9:20am
O___o wrote:
yea, absolutely, then you can get your cylinder back that was done by one of his "lackeys", looks like shit, and has the powervalve re-installed incorrectly...
yea, absolutely, then you can get your cylinder back that was done by one of his "lackeys", looks like shit, and has the powervalve re-installed incorrectly, that you waited on for 2 months for. but hey, he can't blame millenium for the wait times anymore.
2 Stroke Beast wrote:
? what do you mean Ive always heard millenium was good did you have a problem with them do tell
O___o wrote:
in the old days, Eric Gorr did his own work through his own comapny called Forward Motion. While his knowledge is amazing, his business practices weren't...
in the old days, Eric Gorr did his own work through his own comapny called Forward Motion. While his knowledge is amazing, his business practices weren't. this is usually the case with craftsman/tradesman. Either you're a craftsman or you're a businessman but rarely are you both.

now, he's in-house with millenium (whom he used to outsource his plating to) and is able to keep a better return timeframe.
So when you work is sent to forward motion eric gorr doesent do the work and the wait times are terrible
O___o
Profile picture for user O___o
Posts
730
Joined
9/25/2014
Location
CA
O___o 10/29/2014 9:24am
10/29/2014 9:24am
2 Stroke Beast wrote:
? what do you mean Ive always heard millenium was good did you have a problem with them do tell
O___o wrote:
in the old days, Eric Gorr did his own work through his own comapny called Forward Motion. While his knowledge is amazing, his business practices weren't...
in the old days, Eric Gorr did his own work through his own comapny called Forward Motion. While his knowledge is amazing, his business practices weren't. this is usually the case with craftsman/tradesman. Either you're a craftsman or you're a businessman but rarely are you both.

now, he's in-house with millenium (whom he used to outsource his plating to) and is able to keep a better return timeframe.
2 Stroke Beast wrote:
So when you work is sent to forward motion eric gorr doesent do the work and the wait times are terrible
They sure used to be.
2 Stroke Beast 10/29/2014 9:28am
10/29/2014 9:28am
So if I was to get a head mod or porting done who do you suggest
roughneck
Profile picture for user roughneck
Posts
436
Joined
1/22/2010
Location
Jefferson, OR, USA
roughneck 10/29/2014 12:40pm
10/29/2014 12:40pm
I sent my cylinder back to gorr twice and it was still messed up..then I shipped it off to Varner and it came back dialed!!

http://www.varnermotorsports.com
Suns_PSD
Profile picture for user Suns_PSD
Posts
989
Joined
4/1/2008
Location
Austin, TX, USA
Suns_PSD 10/29/2014 12:47pm
10/29/2014 12:47pm
2 Stroke Beast wrote:
Does anyone know the basic knowledge of what to do to the transfer ports to change the power curve I tried to look it up and...
Does anyone know the basic knowledge of what to do to the transfer ports to change the power curve I tried to look it up and got nothing any help Thanks danny
Move the cylinder down to move powerband lower, and raise the cylinder to move the powerband higher. Set Power valve, squish and compression correctly based on your new locations. The ideal port shape for good air flow is mostly it regardless of where that port height ends up.
Lowering the cylinder .005" is notable. Lowering it .02" completely changes the power and.
oshow
Profile picture for user oshow
Posts
4083
Joined
4/1/2008
Location
USA
oshow 10/29/2014 5:55pm
10/29/2014 5:55pm
Pro Circuit

Pit Row

See All »
2 Stroke Beast 10/29/2014 6:02pm
10/29/2014 6:02pm
oshow wrote:
Pro Circuit
No thanks I dont throw money at people anyone will do the work for the cost they charge.
2 Stroke Beast 10/29/2014 6:10pm
10/29/2014 6:10pm
oshow wrote:
Pro Circuit
2 Stroke Beast wrote:
No thanks I dont throw money at people anyone will do the work for the cost they charge.


I'm not going to be this guy.
bsharkey
Profile picture for user bsharkey
Posts
2162
Joined
6/16/2014
Location
Marysville, WA, USA
bsharkey 10/29/2014 6:31pm
10/29/2014 6:31pm
there plenty of places that do good work out there
2 Stroke Beast 10/29/2014 6:33pm
10/29/2014 6:33pm
bsharkey wrote:
there plenty of places that do good work out there
Have you heard of kenoconnor racing
Joko
Profile picture for user Joko
Posts
1545
Joined
1/2/2011
Location
Haddam, CT, USA
Fantasy
124th
Joko 10/29/2014 6:56pm
10/29/2014 6:56pm
PR2, HP bikes
hillbilly
Profile picture for user hillbilly
Posts
9079
Joined
8/16/2006
Location
Afton, TN, USA
hillbilly 10/29/2014 7:33pm
10/29/2014 7:33pm
I learned myself by trial and error on cylinders before coatings.

The best thing you can do for the buck is raise compression by cutting the head and running a high octane fuel.
bsharkey
Profile picture for user bsharkey
Posts
2162
Joined
6/16/2014
Location
Marysville, WA, USA
bsharkey 10/29/2014 7:46pm
10/29/2014 7:46pm
bsharkey wrote:
there plenty of places that do good work out there
2 Stroke Beast wrote:
Have you heard of kenoconnor racing
nope but pr2 or jms for yamahas do well. Th racing is good too. forgot tomacs old engine buiilders name when he was on suzukis. we have a local guy who was a mechanic at subway Honda back in the day who is awesome.
Cygnus
Profile picture for user Cygnus
Posts
14845
Joined
8/15/2006
Location
Hanover, CO, USA
Cygnus 10/29/2014 7:56pm
10/29/2014 7:56pm Edited Date/Time 10/29/2014 7:57pm
hillbilly wrote:
I learned myself by trial and error on cylinders before coatings. The best thing you can do for the buck is raise compression by cutting the...
I learned myself by trial and error on cylinders before coatings.

The best thing you can do for the buck is raise compression by cutting the head and running a high octane fuel.
Yea me too. For 2 Strokes Just a nice match port /clean up and polish the ex. Compression/proper squish is king even more so at altitude.
oshow
Profile picture for user oshow
Posts
4083
Joined
4/1/2008
Location
USA
oshow 10/29/2014 8:13pm
10/29/2014 8:13pm
oshow wrote:
Pro Circuit
2 Stroke Beast wrote:
No thanks I dont throw money at people anyone will do the work for the cost they charge.
The Best
2 Stroke Beast 10/29/2014 8:15pm
10/29/2014 8:15pm
oshow wrote:
Pro Circuit
2 Stroke Beast wrote:
No thanks I dont throw money at people anyone will do the work for the cost they charge.
oshow wrote:
The Best
yes but also very expensive
Katoomey
Profile picture for user Katoomey
Posts
1714
Joined
1/18/2013
Location
USA
Katoomey 10/29/2014 8:21pm
10/29/2014 8:21pm
lumpy790 wrote:
Eric Gorr
slipdog wrote:
Linky no worky, bro...
lumpy790 wrote:
its was not a link....bro... Seekers of knowledge need to find their own path to knowledge......or pay someone with said knowledge and ability. porting tools $1000's...
its was not a link....bro...

Seekers of knowledge need to find their own path to knowledge......or pay someone with said knowledge and ability.

porting tools $1000's
porting knowledge Priceless.
one oops .... cylinder becomes a door stop.

It is usually cheaper to pay a professional.
it's not magic. and it isn't science. it's just trial and error. you don't know where the line is until you find it.

...and you can have a nice porting set for $350
Cygnus
Profile picture for user Cygnus
Posts
14845
Joined
8/15/2006
Location
Hanover, CO, USA
Cygnus 10/29/2014 8:22pm
10/29/2014 8:22pm
slipdog wrote:
Linky no worky, bro...
lumpy790 wrote:
its was not a link....bro... Seekers of knowledge need to find their own path to knowledge......or pay someone with said knowledge and ability. porting tools $1000's...
its was not a link....bro...

Seekers of knowledge need to find their own path to knowledge......or pay someone with said knowledge and ability.

porting tools $1000's
porting knowledge Priceless.
one oops .... cylinder becomes a door stop.

It is usually cheaper to pay a professional.
Katoomey wrote:
it's not magic. and it isn't science. it's just trial and error. you don't know where the line is until you find it. ...and you can...
it's not magic. and it isn't science. it's just trial and error. you don't know where the line is until you find it.

...and you can have a nice porting set for $350
It no big deal to add back some material either. You'd have to be a complete dumbass to make a door stop.

Post a reply to: Porting knowledge