I am shopping for a new set of cams, my question though is how much valve lift can we have before our non-interference motors become interference? As of now I am torn between the crane 12's or 16's, not too impressed with the 14's other than the spoolup but I hear they fall flat in the upper RPM's and that hte 16 would be best for my turbo. Just do not want to turn my motor into an interference motor in the process, never know when something is going to happen, let alone that type of damage on top!
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Mods: AGP GT3076R DBB Turbo
"The Cobalt firmly grabs you and whisks you along your way instantly. It does so with authority and poise, but while slipping relatively unnoticed through traffic, never being violent, or dare I say it, frightening. When you ask the SRT-4 to take you somewhere fast, it punches you in the face, throws you over its shoulder, and runs, screaming, so quickly that its tires can barely keep up."
hmm, well I am planning on in the not-too-distant future of building the lower end as well, although I did not plan on changing any of the stock dimensions, was just planning on rods and pistons in stock size.
I have a head that was taken off an SRT4 with Crane 16's. It is a Race Port DCR with over sized valves. The only reason it was sold to me, is because of a shattered rod that bent the #3 exhaust valves. That had nothing to do with the vtv clearance or the vtp clearance. As for my personal knowledge, I don't know. Call DCR or Rage-tek about cams and your choices. I know DCR said that with that head, I need 16s or bigger to get max performance.
BTW I will be upgrading it to the DCR Signature Series and will be using 18's or BC S3's.
i have crower 2's cam and no problem with hitting. i had a buddy in oklahoma city that had crane 14's with the 3076r and put down some good power with it.
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U N D I S P U T E D
The best engine in the world is the vagina, it takes any size piston, its self lubricating, starts with 1 finger, and every 4 weeks does its own oil change. It's just a pity the management system is so fucking temperamental.
PISTONS DESCRIPTION SPECIFICATION Metric & Standard Piston Diameter
Turbo 87.436-87.454 mm 3.4424-3.4431 in.
Clearance @ 22 mm (0.866 in.) from bottom of skirt (Turbo) 0.046-0.064 mm 0.0018-0.0025 in.
Weight 331-339 grams 11.67-11.95 oz. Land Clearance (Diametrical)
Turbo 0.556-0.674 mm 0.021-0.027 in. Piston Length
Turbo 61.43 mm 2.419 in. Piston Ring Groove Depth No. 1
Turbo 3.713-3.882 mm 0.146-0.153 in. Piston Ring Groove Depth No. 2
Turbo 4.118-4.297 mm 0.162-0.169 in. Piston Ring Groove Depth No. 3
Turbo 2.818-2.967 mm 0.110-0.116 in.
PISTONS DESCRIPTION SPECIFICATION Metric & Standard Piston Diameter
Turbo 87.436-87.454 mm 3.4424-3.4431 in.
Clearance @ 22 mm (0.866 in.) from bottom of skirt (Turbo) 0.046-0.064 mm 0.0018-0.0025 in.
Weight 331-339 grams 11.67-11.95 oz. Land Clearance (Diametrical)
Turbo 0.556-0.674 mm 0.021-0.027 in. Piston Length
Turbo 61.43 mm 2.419 in. Piston Ring Groove Depth No. 1
Turbo 3.713-3.882 mm 0.146-0.153 in. Piston Ring Groove Depth No. 2
Turbo 4.118-4.297 mm 0.162-0.169 in. Piston Ring Groove Depth No. 3
Turbo 2.818-2.967 mm 0.110-0.116 in.
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Valve Lift Question
Linear Mode
