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6spdhyperblue · 08-07-2020, 07:04 PM

That cam is actually pretty much what I was wanting Conical sounds like a good idea for the speedinc one.

I haven’t seen that one before.

At first I was thinking if cam motion lobes would be mild enough to run oe lt1 springs if I picked the .576 or maybe even down to the .567 lift lobes? the hotcam is .570 but likely slower ramps than even cam motion? Maybe I’ll call them.

My thought is, I would like to keep the pressures down and not beat up the seats, on top of that, keep the load off the phaser.

Edit: found it on Katechs 0* lockout kit
“ These Chevrolet Gen V mechanical lock outs are used to prevent the VVT mechanism from retarding in high horsepower applications with high cylinder pressures. As cylinder pressures increase the amount of force needed to open the exhaust valves increases which can force the VVT mechanism to retard excessively. ”

Is that plausible? If that’s the case, how would the lt4 or a whipple lt1 handle it? Isn’t the cyl pressure much higher in that application? Or is the cyl pressure only an issue when the high rate springs and plus size fuel lobe are loading it

08-07-2020, 07:04 PM	#16
6spdhyperblue Drives: 2SS 1LE Join Date: Aug 2013 Location: US Posts: 3,794	That cam is actually pretty much what I was wanting Conical sounds like a good idea for the speedinc one. I haven’t seen that one before. At first I was thinking if cam motion lobes would be mild enough to run oe lt1 springs if I picked the .576 or maybe even down to the .567 lift lobes? the hotcam is .570 but likely slower ramps than even cam motion? Maybe I’ll call them. My thought is, I would like to keep the pressures down and not beat up the seats, on top of that, keep the load off the phaser. Edit: found it on Katechs 0* lockout kit “ These Chevrolet Gen V mechanical lock outs are used to prevent the VVT mechanism from retarding in high horsepower applications with high cylinder pressures. As cylinder pressures increase the amount of force needed to open the exhaust valves increases which can force the VVT mechanism to retard excessively. ” Is that plausible? If that’s the case, how would the lt4 or a whipple lt1 handle it? Isn’t the cyl pressure much higher in that application? Or is the cyl pressure only an issue when the high rate springs and plus size fuel lobe are loading it __________________ Last edited by 6spdhyperblue; 08-08-2020 at 04:37 AM.