What is a safe rev limit (come inside for more info)
03-01-2006, 03:22 PM
#1
What is a safe rev limit (come inside for more info) I am putting in a small blower cam on 918 springs with chromemoly hardened pushrods soon and eventually will be getting blown (i love saying that) anyways, all the other internals are stock, what is a safe rev limit that i should run? thanks!
03-01-2006, 09:07 PM
#3
TECH Enthusiast
iTrader: (87)
Join Date: Sep 2004
Location: Charleston, SC
Posts: 601
Likes: 0
Received 0 Likes
on
0 Posts
With swapping rod bolts I've seen people safely run between 6800 and 7200. Mine is set @ 7100 with my WOT shifts @ 6900. But I guess every engine is different? Just my .02
Last edited by zspot98; 03-02-2006 at 06:41 AM.
03-02-2006, 01:23 AM
#6
TECH Senior Member
Originally Posted by zspot98
Without swapping rod bolts I've seen people safely run between 6800 and 7200. Mine is set @ 7100 with my WOT shifts @ 6900. But I guess every engine is different? Just my .02
6300 is a "SAFE" area and above that probability of failure increases.
Trending Topics
03-02-2006, 01:50 AM
#11
TECH Fanatic
iTrader: (13)
Join Date: Aug 2002
Location: DFW, TX
Posts: 1,222
Likes: 0
Received 0 Likes
on
0 Posts
My limiter is set at 6800, and my shift light is set to light up at 6400 so that i'm shifting around 6500-6600.
My cam pulls all the way to 6800, but I don't see the point in running the car that high when I'm racing b/c of the added risk of failure.
My cam pulls all the way to 6800, but I don't see the point in running the car that high when I'm racing b/c of the added risk of failure.
03-02-2006, 06:45 AM
#12
TECH Enthusiast
iTrader: (87)
Join Date: Sep 2004
Location: Charleston, SC
Posts: 601
Likes: 0
Received 0 Likes
on
0 Posts
You really don't actually believe that? Do you?
6300 is a "SAFE" area and above that probability of failure increases
6300 is a "SAFE" area and above that probability of failure increases
03-02-2006, 07:24 AM
#14
10 Second Club
iTrader: (7)
Join Date: Jun 2004
Location: Fayetteville, NC
Posts: 260
Likes: 0
Received 0 Likes
on
0 Posts
I have mine set @ 6700 and bounce off it a lot and feel pretty safe about it. Anything higher I would start to worry. I have friends with stock bottom ends set @ 7050 shifting @6900 seems a little high to me but everyone has a different opinion on this...... Without any facts to support it, I personally feel 6600-6700 is the max safe limit...
03-02-2006, 08:07 AM
#15
TECH Enthusiast
iTrader: (3)
Join Date: Aug 2005
Location: Castle Rock, CO
Posts: 597
Likes: 0
Received 0 Likes
on
0 Posts
stock valvetrain starts floating around 6500
rods will let go a little after that
but with upgraded valvetrain and rods bolts, people do 7K all the time
rods will let go a little after that
but with upgraded valvetrain and rods bolts, people do 7K all the time
03-02-2006, 11:03 AM
#19
wow that seems kind of low, but here is another question, is it pointless to move the limiter up if u are making all of your power below that? say u peak out and start droppin HP around 5500, does raising the limiter do ANYTHING for u?
