Highest power exhaust for GSX-R750 L1 2011-2023?
Moderator: Team
Highest power exhaust for GSX-R750 L1 2011-2023?
What's the highest power exhaust for GSX-R750 L1 2011-2023?
The criterion is average power in the 11,000-15,000 rpm range and nothing below that matters. The shape of the torque curve doesn't matter and neither does the ground clearance so no need to do the 1-2&3-4 motorcycle 4-2-1s here.
The criterion is average power in the 11,000-15,000 rpm range and nothing below that matters. The shape of the torque curve doesn't matter and neither does the ground clearance so no need to do the 1-2&3-4 motorcycle 4-2-1s here.
Paradigms often shift without the clutch -- https://www.youtube.com/watch?v=cxn-LxwsrnU
https://www.instagram.com/ptuomov/
Put Search Keywords Here
https://www.instagram.com/ptuomov/
Put Search Keywords Here
-
- HotPass
- Posts: 3473
- Joined: Sat Feb 23, 2013 5:42 pm
- Location:
Re: Highest power exhaust for GSX-R750 L1 2011-2023?
The shape of the torque curve matters for anything used in a vehicle / bike, but if you’re dead set on it:ptuomov wrote: ↑Sun Sep 24, 2023 5:00 pm What's the highest power exhaust for GSX-R750 L1 2011-2023?
The criterion is average power in the 11,000-15,000 rpm range and nothing below that matters. The shape of the torque curve doesn't matter and neither does the ground clearance so no need to do the 1-2&3-4 motorcycle 4-2-1s here.
viewtopic.php?t=31606
Read Clint’s (nitro2) posts
-Bob
Re: Highest power exhaust for GSX-R750 L1 2011-2023?
It’s going to be nice enough no matter what in the 11-15k range, and that’s all that is ever needed with the gear box. 2-6 gears only use 12.5-15k.
That thread never reveals the super duper secret exhaust. What’s the best known exhaust?
That thread never reveals the super duper secret exhaust. What’s the best known exhaust?
You do not have the required permissions to view the files attached to this post.
Paradigms often shift without the clutch -- https://www.youtube.com/watch?v=cxn-LxwsrnU
https://www.instagram.com/ptuomov/
Put Search Keywords Here
https://www.instagram.com/ptuomov/
Put Search Keywords Here
Re: Highest power exhaust for GSX-R750 L1 2011-2023?
S measuring the engine internals for the 1D simulator:
You do not have the required permissions to view the files attached to this post.
Paradigms often shift without the clutch -- https://www.youtube.com/watch?v=cxn-LxwsrnU
https://www.instagram.com/ptuomov/
Put Search Keywords Here
https://www.instagram.com/ptuomov/
Put Search Keywords Here
Re: Highest power exhaust for GSX-R750 L1 2011-2023?
I’m thinking that the exhaust port at 31mm is a little small for trying to get the stock exhaust cam to hold up the 150hp+ power for the full 11-15k rpm range.
A pretty exhaust pipe photo here:
A pretty exhaust pipe photo here:
You do not have the required permissions to view the files attached to this post.
Paradigms often shift without the clutch -- https://www.youtube.com/watch?v=cxn-LxwsrnU
https://www.instagram.com/ptuomov/
Put Search Keywords Here
https://www.instagram.com/ptuomov/
Put Search Keywords Here
-
- HotPass
- Posts: 3473
- Joined: Sat Feb 23, 2013 5:42 pm
- Location:
Re: Highest power exhaust for GSX-R750 L1 2011-2023?
Pretty sure they were like 4-6” expanding stubsptuomov wrote: ↑Sun Sep 24, 2023 5:58 pm It’s going to be nice enough no matter what in the 11-15k range, and that’s all that is ever needed with the gear box. 2-6 gears only use 12.5-15k.
That thread never reveals the super duper secret exhaust. What’s the best known exhaust?
IMG_8189.jpeg
IMG_8190.jpeg
I think that exhaust port is fine. We’ve put 190whp + through exhaust ports with that same area.
-Bob
Re: Highest power exhaust for GSX-R750 L1 2011-2023?
“I think that exhaust port is fine. We’ve put 190whp + through exhaust ports with that same area.”
I agree with free cams. But how about rules mandated short stock cams?
I agree with free cams. But how about rules mandated short stock cams?
Paradigms often shift without the clutch -- https://www.youtube.com/watch?v=cxn-LxwsrnU
https://www.instagram.com/ptuomov/
Put Search Keywords Here
https://www.instagram.com/ptuomov/
Put Search Keywords Here
Re: Highest power exhaust for GSX-R750 L1 2011-2023?
Also, what’s the best guess primary length for that rpm range and 4-1 system?
Paradigms often shift without the clutch -- https://www.youtube.com/watch?v=cxn-LxwsrnU
https://www.instagram.com/ptuomov/
Put Search Keywords Here
https://www.instagram.com/ptuomov/
Put Search Keywords Here
Re: Highest power exhaust for GSX-R750 L1 2011-2023?
-juhana
You do not have the required permissions to view the files attached to this post.
A balanced person dares to stagger, and modify ports bigger
Re: Highest power exhaust for GSX-R750 L1 2011-2023?
Does this system require a muffler? If so... Is there a sound test method and db maximum?
- Paul
Re: Highest power exhaust for GSX-R750 L1 2011-2023?
No sound test, an object appearing like a muffler required on the pipe, plenty of space and slack weight to make any system appear like an open header to the exhaust flow if sound requirements ever come. So for now it’s to be designed like a fully open header.
Paradigms often shift without the clutch -- https://www.youtube.com/watch?v=cxn-LxwsrnU
https://www.instagram.com/ptuomov/
Put Search Keywords Here
https://www.instagram.com/ptuomov/
Put Search Keywords Here
Re: Highest power exhaust for GSX-R750 L1 2011-2023?
40-45cm wouldn't sound silly for this rpm range.
Paradigms often shift without the clutch -- https://www.youtube.com/watch?v=cxn-LxwsrnU
https://www.instagram.com/ptuomov/
Put Search Keywords Here
https://www.instagram.com/ptuomov/
Put Search Keywords Here
Re: Highest power exhaust for GSX-R750 L1 2011-2023?
So something like 4 x 4-4.5" or 3 x 5.5-6" primary sections with each section stepping up a pipe size? And then old-F1 style 4-1 collector with a relatively small collector exit pipe diameter?
Paradigms often shift without the clutch -- https://www.youtube.com/watch?v=cxn-LxwsrnU
https://www.instagram.com/ptuomov/
Put Search Keywords Here
https://www.instagram.com/ptuomov/
Put Search Keywords Here
Re: Highest power exhaust for GSX-R750 L1 2011-2023?
I think not lol.
High Speed Combustion Pressure Tuning Equipment
TFX Engine Technology Inc.
tfx.engine@yahoo.com
www.tfxengine.com
TFX Engine Technology Inc.
tfx.engine@yahoo.com
www.tfxengine.com
-
- HotPass
- Posts: 3473
- Joined: Sat Feb 23, 2013 5:42 pm
- Location: