CTR Piston on B18C1(block and Head) and Skunk2 stage 1 cams.. clearance problem?
11-22-2002, 11:28 AM
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CTR Piston on B18C1(block and Head) and Skunk2 stage 1 cams.. clearance problem?
Next project is to rebuild motor.
Will the setup above create any piston/valve clearance problems. The CTR has a big dome on woried about the valves hitting it during valve overlap. (spcially with aftermarket cams).
I read some posts that say clay the motor to be safe. But how can you account for the VTEC lobe which is much bigger than the regular lobe.
I need some first hand experience.
Thanks.
Will the setup above create any piston/valve clearance problems. The CTR has a big dome on woried about the valves hitting it during valve overlap. (spcially with aftermarket cams).
I read some posts that say clay the motor to be safe. But how can you account for the VTEC lobe which is much bigger than the regular lobe.
I need some first hand experience.
Thanks.
11-22-2002, 03:49 PM
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Re: CTR Piston on B18C1(block and Head) and Skunk2 stage 1 cams.. clearance problem? (JD_B18CDX)
you should be ok since there are people running CTR pistons with Skunk2 Stage 2 cams with out any problems. besides, the CTR pistons have deep valve reliefs...so everything should be alright.
11-23-2002, 08:06 AM
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Re: CTR Piston on B18C1(block and Head) and Skunk2 stage 1 cams.. clearance problem? (ian)
you should be ok since there are people running CTR pistons with Skunk2 Stage 2 cams with out any problems. besides, the CTR pistons have deep valve reliefs...so everything should be alright.
I've seen motors with ctr pistons and stock GSR cams.
I'm worried that with the skunk 2, when VTEC switches over the big lobe, motors self destructs. I'm currently looking at the stock GSR cam and the skunk2 and the skunk2 is waaaayyy bigger. (at least the vtec lobe).
I dont know a way to clay the motor to account for the vtec lobe. As you all know, when motor is not running, rocker arms are sitting on the small lobes.
Any inputs will be appreciated.
Thanks.
11-23-2002, 04:17 PM
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Re: CTR Piston on B18C1(block and Head) and Skunk2 stage 1 cams.. clearance problem? (JD_B18CDX)
it should be ok,i have a freind that has a similar setup to yours but he has a miled head 20 thousanths to be exact with skunk2 stage 2's and he clears with the ctr pistons
12-01-2002, 09:17 AM
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Re: CTR Piston on B18C1(block and Head) and Skunk2 stage 1 cams.. clearance problem? (singlecam scre
Should be the safe with CTR Cams on this block w/CTR pistons then, Right.
12-01-2002, 10:32 AM
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Re: CTR Piston on B18C1(block and Head) and Skunk2 stage 1 cams.. clearance problem? (JD_B18CDX)
You can engage the VTEC rocker arm for claying. Pull out the allen plugs on the ends of the rocker shafts, and slide the rocker shafts out far enough to pull the rockers out of one cylinder. Pull the rockers out and put a spacer in the rocker arm hole to force the VTEC pin against the return spring. All of the rockers should be locked together. Put the rockers back in and slide the rocker shaft through. Do this for one cylinder on the intake side and one on the exhaust side. Install and torque the head (with a used head gasket) and turn the engine two complete revolutions by hand. Remove the head and inspect the clay. Done.
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