1.7, 1.9, and 2.1 ratio LS1 Jesel rocers!!!
#1
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I was on the Jesel site and copied and paisted the following out of there aplication guide:
"Corvette LS-1/1.7 Ratio/OEM Roller Cam* . . . . . . . . . . . . . K2A-3012203
Corvette LS-1/1.9 Ratio/OEM Roller Cam* . . . . . . . . . . . . . K2A-3022203
Corvette LS-1/2.1 Ratio/OEM Roller Cam* . . . . . . . . . . . . . K2A-3032203
*Rocker Kits available for use with solid roller cams. Call for Details."
<img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />
2.1 ratio!!!
Any idea what it would take to use 1.9 and 2.1 ratio rockers? I have heard that if you get to high on the ratio, you start having pushrod to head interference.
How would a person use something like this? A lot of the cams I have seen on the market for LS1s say NOT to use even 1.8s due to the high ramp rates. Would there be any advantage to using a slower/milder ramp lobe and then using a high ratio rocker?
Chris
<small>[ October 11, 2002, 07:25 PM: Message edited by: 2001CamaroGuy ]</small>
"Corvette LS-1/1.7 Ratio/OEM Roller Cam* . . . . . . . . . . . . . K2A-3012203
Corvette LS-1/1.9 Ratio/OEM Roller Cam* . . . . . . . . . . . . . K2A-3022203
Corvette LS-1/2.1 Ratio/OEM Roller Cam* . . . . . . . . . . . . . K2A-3032203
*Rocker Kits available for use with solid roller cams. Call for Details."
<img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />
2.1 ratio!!!
Any idea what it would take to use 1.9 and 2.1 ratio rockers? I have heard that if you get to high on the ratio, you start having pushrod to head interference.
How would a person use something like this? A lot of the cams I have seen on the market for LS1s say NOT to use even 1.8s due to the high ramp rates. Would there be any advantage to using a slower/milder ramp lobe and then using a high ratio rocker?
Chris
<small>[ October 11, 2002, 07:25 PM: Message edited by: 2001CamaroGuy ]</small>
#2
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I am wondering the same thing. Since with when i get new heads i am gonnna need new rockers so why not just go with a 1.9 since you have to get new ones anyways.
#3
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We have already used 1.8 and 1.9 custom T&D's on different emgine builds with some of our aggresive cam profiles.As long as you have the proper valvespring,there is no problem in running a higher rocker ratio <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
They do take a little extra fitting to work properly though.
They do take a little extra fitting to work properly though.