"Pork Chop" Cranks for GT/TR750

Getting your blazingly fast Suzuki powerplant to perform even better!

Moderators: oldjapanesebikes, H2RICK, diamondj, Suzsmokeyallan

Post Reply
User avatar
Suzukidave
Moto GP
Posts: 3980
Joined: Fri Oct 24, 2008 5:55 pm
Country: US
Suzuki 2-Strokes: GT750 x2 97 -1200 Bandit 86 GSXR1100
Location: Lancaster Pa.

Re: "Pork Chop" Cranks for GT/TR750

Post by Suzukidave »

Hi Kris , any progress on your TR project ?
the older i get the faster i was
User avatar
water cooled
Yeah Man, the Interstate
Posts: 704
Joined: Thu Oct 23, 2008 3:23 pm
Country: USA
Suzuki 2-Strokes: 1974 Suzuki GT750
Location: Medina OH

Re: "Pork Chop" Cranks for GT/TR750

Post by water cooled »

Dave,
I just noticed that the coolant drain on the pressure side of the pump has been modified. Do you think Kris did this to reverse the coolant flow somehow? Somewhere on this forum I read that reversing the coolant flow can help with HP. Whats your take on this...

Im not exactly sure how he gets that to work...
User avatar
Suzukidave
Moto GP
Posts: 3980
Joined: Fri Oct 24, 2008 5:55 pm
Country: US
Suzuki 2-Strokes: GT750 x2 97 -1200 Bandit 86 GSXR1100
Location: Lancaster Pa.

Re: "Pork Chop" Cranks for GT/TR750

Post by Suzukidave »

Kris is running a electric w/p so no need for the pass by the pump .
the older i get the faster i was
hogpacker
Still in the Driveway
Posts: 4
Joined: Fri Aug 02, 2013 9:41 pm
Country: australia
Suzuki 2-Strokes: rm250 rg250 gt750 rg400 t350 windle750 tr750

Re: "Pork Chop" Cranks for GT/TR750

Post by hogpacker »

this one luckily escaped the crusher
You do not have the required permissions to view the files attached to this post.
User avatar
Suzukidave
Moto GP
Posts: 3980
Joined: Fri Oct 24, 2008 5:55 pm
Country: US
Suzuki 2-Strokes: GT750 x2 97 -1200 Bandit 86 GSXR1100
Location: Lancaster Pa.

Re: "Pork Chop" Cranks for GT/TR750

Post by Suzukidave »

Post #1 .. welcome to the list .. where did that crank come from ? sidecar racer ?
the older i get the faster i was
hogpacker
Still in the Driveway
Posts: 4
Joined: Fri Aug 02, 2013 9:41 pm
Country: australia
Suzuki 2-Strokes: rm250 rg250 gt750 rg400 t350 windle750 tr750

Re: "Pork Chop" Cranks for GT/TR750

Post by hogpacker »

located it here in Australia
now have a big hole in my bank account
haven't decided which engine to put it in yet
Barton in sidecar or the tr750
was supplied with a new set of mains
that definitely was a bonus
the other option is to look at laser or water cutting and make a second crank
User avatar
Suzukidave
Moto GP
Posts: 3980
Joined: Fri Oct 24, 2008 5:55 pm
Country: US
Suzuki 2-Strokes: GT750 x2 97 -1200 Bandit 86 GSXR1100
Location: Lancaster Pa.

Re: "Pork Chop" Cranks for GT/TR750

Post by Suzukidave »

Do you have knowledge on how these type crank perform ? are they better suited for open tracks like Daytona ?
the older i get the faster i was
hogpacker
Still in the Driveway
Posts: 4
Joined: Fri Aug 02, 2013 9:41 pm
Country: australia
Suzuki 2-Strokes: rm250 rg250 gt750 rg400 t350 windle750 tr750

Re: "Pork Chop" Cranks for GT/TR750

Post by hogpacker »

H1 with a steroid overdose
apparently the tyres of the day struggled with the brutal power delivery
not a short circuit crank I should imagine
ja-moo
Yeah Man, the Interstate
Posts: 554
Joined: Wed Apr 01, 2009 11:47 pm
Location: NM USA
Contact:

Re: "Pork Chop" Cranks for GT/TR750

Post by ja-moo »

This is interesting, coming from the "Kawasaki" end of the spectrum. The H2, and H2R's had porkchop cranks. And both the factory and private racers actually went the other way to full circle cranks for testing. Neither found enough improvement to change over. The KR 750 race engine did go to a full circle crank, though it was really too late to compete with the reed and 4 cylinder Yammi TZ's.

I can see a big drop in CC compression, and am not sure even big new modern pipes (that like low CC compression) can handle that much of a reduction. Has there been any computations to see just where the CC compression will be?
Visiting from the "K" camp...........
kiwisidecars
Still in the Driveway
Posts: 3
Joined: Thu Aug 08, 2013 2:14 pm
Country: new zealand
Suzuki 2-Strokes: t500 gt750

Re: "Pork Chop" Cranks for GT/TR750

Post by kiwisidecars »

Hi all new to this forum, Have just about finished a pork chop crank will post pics when finished. Does anyone know what has happened to NATS
User avatar
tz375
Moto GP
Posts: 6210
Joined: Mon Nov 03, 2008 10:47 am
Location: Illinois

Re: "Pork Chop" Cranks for GT/TR750

Post by tz375 »

Hi, and welcome.
It was still there 2 minutes ago, or are you referring to activity level over there?
kiwisidecars
Still in the Driveway
Posts: 3
Joined: Thu Aug 08, 2013 2:14 pm
Country: new zealand
Suzuki 2-Strokes: t500 gt750

Re: "Pork Chop" Cranks for GT/TR750

Post by kiwisidecars »

Hi there, No not the level of activity I don't seem to be able to get to the site
User avatar
tz375
Moto GP
Posts: 6210
Joined: Mon Nov 03, 2008 10:47 am
Location: Illinois

Re: "Pork Chop" Cranks for GT/TR750

Post by tz375 »

try this link:

http://2stroker.createforumhosting.com/" onclick="window.open(this.href);return false;
Post Reply