Home
Forum
Search
Login
Register
Merch
Donate
Welcome, Guest. Please
Login
or
Register
::
View Members
SuzukiSavage.com
›
General Category
›
Rubber Side Down!
› What is a safe redline?
(Moderators:
verslagen1
,
Dave
,
Serowbot
)
‹
Previous topic
|
Next topic
›
Pages:
1
2
3
What is a safe redline? (Read 388 times)
stinkywheels
YaBB Newbies
Offline
SuzukiSavage.com
Rocks!
Posts: 7
What is a safe redline?
03/16/22 at 07:18:47
I've got a Savage with (supposedly) with big bore higher compression piston, ported head, hotter cam, roundslide carb. I say supposedly as I haven't torn into it but it runs considerably better than the wifes stocker. I'm putting this engine from this modded Savage into a butchered Cafe bike I'm building. What is a safe redline for these bikes? I've not taken it over 6K as I really don't know what the bottom end will take. I don't really know what you can rev these to safely.
Back to top
IP Logged
TheSneeze
Serious Thumper
Offline
Posts: 1209
Northern Nevada
Gender:
Re: What is a safe redline?
Reply #1 -
03/16/22 at 07:39:26
I am not sure what the redline is for the Savage, but the valve train is usually the limiting factor when it comes to RPM.
Back to top
Every twenty minute job is a stripped thread away from being a three day ordeal.
'87 LS650h Savage Street Tracker
'86 LS650g Savage (parts bike)
'81 Kawasaki KZ750e ELR tribute
IP Logged
verslagen1
YaBB Moderator
ModSquad
Online
Where there's a
will, I want to be
in it.
Posts: 28805
L.A. California
Gender:
Re: What is a safe redline?
Reply #2 -
03/16/22 at 08:53:19
6500 rpm is mfg spec, and it will do more w/out blowing up.
According to the gearing commander, 97 mph is max speed in stock form.
SO, unless you are winding it out in 1st gear...
Back to top
Versey's Place
Tech Section Index
IP Logged
LANCER
Serious Thumper
Alliance Member
Offline
Savage Beast
Performance Parts
Posts: 10618
Oklahoma
Gender:
Re: What is a safe redline?
Reply #3 -
03/16/22 at 10:46:38
Some engines have hit 8000 rpm momentarily without ill effect.
That is not recommended however.
Back to top
IP Logged
stinkywheels
YaBB Newbies
Offline
SuzukiSavage.com
Rocks!
Posts: 7
Re: What is a safe redline?
Reply #4 -
03/16/22 at 10:51:26
Thank you that is helpful. I'm not new to bikes, just Savages. I need to jet it and would like to know what it'll do, or not do. It's a chain drive and can mess with sprockets again if need be. I've got quite a few.
verslagen1 wrote
on 03/16/22 at 08:53:19:
6500 rpm is mfg spec, and it will do more w/out blowing up.
According to the gearing commander, 97 mph is max speed in stock form.
SO, unless you are winding it out in 1st gear...
Back to top
IP Logged
Gary_in_NJ
Serious Thumper
Offline
LS650 Cafe Racer
Posts: 2630
Amongst the Twisty Roads
Re: What is a safe redline?
Reply #5 -
03/16/22 at 10:52:53
With all of the mods on your engine, the redline is all but meaningless. I would suggest that you put the bike on a dyno and do a few pulls, noting what rpm the power peaks, and then drops by 5-7%. Assuming that the valve springs can handle your lift and duration, that's your redline.
Back to top
A life-time student of motorcycling.
LS650 Cafe, DRZ400SM, FZ6N, SV650S, CB900C, Ducati ST2, CB550F-SS
My LS650=>
http://suzukisavage.com/yabb2.2/Attachments/Left.JPG
IP Logged
stinkywheels
YaBB Newbies
Offline
SuzukiSavage.com
Rocks!
Posts: 7
Re: What is a safe redline?
Reply #6 -
03/16/22 at 10:54:20
I doubt it'll see that on purpose, buuut things do happen. Thanks. If I ever get in the engine I'll see if it's got some of your parts in it.
LANCER wrote
on 03/16/22 at 10:46:38:
Some engines have hit 8000 rpm momentarily without ill effect.
That is not recommended however.
Back to top
IP Logged
stinkywheels
YaBB Newbies
Offline
SuzukiSavage.com
Rocks!
Posts: 7
Re: What is a safe redline?
Reply #7 -
03/16/22 at 11:02:51
It's probably only ever gonna see a butt dyno. I've already thrown more money in the toilet on this bike than I should. I'm just going to have more fun on it, be kinda nice to it. I might put a Keihin flatslide on it and see if it likes an accelerator pump of not. I've got lots of faster bikes, I just wanna play with something simple without taking all the fun out of it.
Gary_in_NJ wrote
on 03/16/22 at 10:52:53:
With all of the mods on your engine, the redline is all but meaningless. I would suggest that you put the bike on a dyno and do a few pulls, noting what rpm the power peaks, and then drops by 5-7%. Assuming that the valve springs can handle your lift and duration, that's your redline.
Back to top
IP Logged
stinkywheels
YaBB Newbies
Offline
SuzukiSavage.com
Rocks!
Posts: 7
Re: What is a safe redline?
Reply #8 -
03/16/22 at 11:04:05
With a 94mm stroke I thought piston speed might come into play.
TheSneeze wrote
on 03/16/22 at 07:39:26:
I am not sure what the redline is for the Savage, but the valve train is usually the limiting factor when it comes to RPM.
Back to top
IP Logged
Dave
YaBB Moderator
ModSquad
Offline
SuzukiSavage.com
Rocks!
Posts: 17873
Camp Springs, Kentucky
Gender:
Re: What is a safe redline?
Reply #9 -
03/16/22 at 11:04:54
Even in a modified engine - there is not a lot of reason to spend too much time up around 6,000 rpm. The strong point of the big single is the torque and the ability to pull strongly in the mid range rpm. On my engine I hold the throttle open and when I feel the pull from the engine starting to weaken - I shift to the next gear. I believe that is up around the 6,000 - 6,500 rpm area......but I seldom look at the tach while I ride that way.
I was on a forum with a lot of younger folks....and it had some older experienced guys as well. One of the Noobs was saying how he always takes the engine to the redline before shifting to the next gear. One of the older guys told him that the redline on the tachometer is like the local bar - you can go there occasionally and likely be alright.....but if you hang out there all the time you will likely get into trouble!
Back to top
Someday I will be old......But not today!
IP Logged
LANCER
Serious Thumper
Alliance Member
Offline
Savage Beast
Performance Parts
Posts: 10618
Oklahoma
Gender:
Re: What is a safe redline?
Reply #10 -
03/16/22 at 12:33:26
In the upper rpm’s he engine uses some oil.
Back to top
IP Logged
Ruttly
Serious Thumper
Offline
Thumpers Rule
Posts: 5028
Manteca , CA
Gender:
Re: What is a safe redline?
Reply #11 -
03/16/22 at 13:24:18
When my butt gets numb from high rpm buzz , time to back off a bit
Don’t even think about farting !
I don’t look at the speedo why would I have a tach.
Back to top
The Topic Terminator
IP Logged
ohiomoto
Serious Thumper
Offline
SuzukiSavage.com
Rocks!
Posts: 2704
WTF is JOG?
Re: What is a safe redline?
Reply #12 -
03/16/22 at 19:59:24
Jesus, just crappity smacking shift when it feels right.
Back to top
IP Logged
Ruttly
Serious Thumper
Offline
Thumpers Rule
Posts: 5028
Manteca , CA
Gender:
Re: What is a safe redline?
Reply #13 -
03/16/22 at 20:34:34
Ride it like you stole it , not like you own it , it’s more fun !
Back to top
The Topic Terminator
IP Logged
TheSneeze
Serious Thumper
Offline
Posts: 1209
Northern Nevada
Gender:
Re: What is a safe redline?
Reply #14 -
03/16/22 at 21:36:11
ohiomoto wrote
on 03/16/22 at 19:59:24:
Jesus, just crappity smacking shift when it feels right.
I'll cosign this one...
Back to top
Every twenty minute job is a stripped thread away from being a three day ordeal.
'87 LS650h Savage Street Tracker
'86 LS650g Savage (parts bike)
'81 Kawasaki KZ750e ELR tribute
IP Logged
Pages:
1
2
3
‹
Previous topic
|
Next topic
›
Forum Jump »
» 10 most recent posts
» 10 most recent topics
General Category
»» Rubber Side Down!
- Technical Documents/Reference
- The Marketplace
- The Cafe
- Politics, Religion (Tall Table)
- Forum Upgrade Issues / Tests
« Home
« Home
SuzukiSavage.com
06/03/24 at 13:47:16
›
General Category
›
Rubber Side Down!
› What is a safe redline?
SuzukiSavage.com
» Powered by
YaBB 2.2
!
YaBB
© 2000-2007. All Rights Reserved.