Subject	yeah i agree. remember i told you i had no issue with 400
Posted by	ztunerz on October 05, 2012 at 12:39 PM
	This message has been viewed 209 times.
In Reply To	valve height only has to be adjusted if it is beyond the posted by aliaZ on October 05, 2012 at 11:25 AM
Message	cams ? Only with the 500's. I believe the issue is the valve choice and the base circle issue in combination. In the machineshops defence i originally gave them 400's when the heads were put together. If they checked with that they would be in spec and i had no noise. I then swapped in the 500's and have a light noise. Anyhow ripping it all apart :) Here is what i found searching the net. "JWT cams are ground on new genuine Nissan billets, so mismatched cam metallurgy with the accompanying excess wear is avoided. Since the cams are ground on new billets, the base circle can be set wherever it is needed. On the 300ZX, high-lift cam lobes can actually contact part of the head, so JWT reduces the base circle about 0.020-inches to prevent clearance problems. This is still within the tolearances of the hydraulic lash adjusters, so the cam is still a direct drop-in. To reduce the chance of valve float at high rpm, JWT installed some of its high-tension valve springs to keep the valvetrain happy." This is from an old modified mag. Link >> [ http://www.modified.com/projectcars/9909scc_project_nissan_300zx_part_4/ ] Formerly yellowzxtt
Follow Ups	JWT Solid Race Cams - petadakilla 20:20:13 10/04/12 You weren't expecting it to LOBE at idle? - TTZEDHEAD 20:37:34 10/04/12 Re: You weren't expecting it to LOBE at idle? - Rob260 21:38:47 10/04/12 Interesting you mention lifter clearance - can you expound - ztunerz 22:06:20 10/04/12 Re: Interesting you mention lifter clearance - can you expound - Tech@EPR 00:43:39 10/05/12 Re: Re: Interesting you mention lifter clearance - can you expound - Rob260 01:09:56 10/05/12 Re: Re: Re: Interesting you mention lifter clearance - can you expound - Tech@EPR 01:18:14 10/05/12 what solid cam setup do you prefer that also keeps VTC? - aliaZ 06:23:00 10/05/12 Re: what solid cam setup do you prefer that also keeps VTC? - Tech@EPR 08:55:58 10/05/12 Re: Interesting you mention lifter clearance - can you expound - Rob260 01:04:57 10/05/12 Re: Re: Interesting you mention lifter clearance - can you expound - Tech@EPR 01:22:04 10/05/12 Re: Re: Re: Interesting you mention lifter clearance - can you expound - WazTTed 02:09:37 10/05/12 Jun cams - BLACK Z 01:27:08 10/05/12 Ok this jives with what i have seen / experienced. - ztunerz 11:10:56 10/05/12 valve height only has to be adjusted if it is beyond the - aliaZ 11:25:11 10/05/12 yeah i agree. remember i told you i had no issue with 400 - ztunerz 12:39:07 10/05/12 Re: yeah i agree. remember i told you i had no issue with 400 - BLACK Z 17:11:39 10/05/12 Thank you for the correction - TTZEDHEAD 22:13:53 10/04/12 question... - aliaZ 06:33:51 10/05/12 Re: question... - Tech@EPR 08:54:35 10/05/12 You don't beat up the seats and can run lower spring - ztunerz 11:14:32 10/05/12 Re: You don't beat up the seats and can run lower spring - Tech@EPR 14:24:53 10/05/12 VERY impressive build! (n/m) - TTZEDHEAD 20:38:43 10/04/12 Re: VERY impressive build! - petadakilla 20:47:08 10/04/12 What exactly is your point? - TTZEDHEAD 20:54:49 10/04/12 Re: What exactly is your point? - petadakilla 20:59:52 10/04/12 if you get the solid cams...can you name a price on the - genic 21:04:09 10/04/12 Re: if you get the solid cams...can you name a price on the - Tech@EPR 01:00:51 10/05/12 Here's a comparison of a bunch of cams... - LitlElvis 12:02:16 10/05/12 I didn't notice any idle difference going from the 500's - JaffaUK 02:24:06 10/05/12 Re: I didn't notice any idle difference going from the 500's - petadakilla 07:41:08 10/05/12 Re: Re: I didn't notice any idle difference going from the 500's - Tech@EPR 08:58:11 10/05/12 Re: Re: Re: I didn't notice any idle difference going from the 500's - petadakilla 09:19:15 10/05/12 Re: Re: Re: Re: I didn't notice any idle difference going from the 500's - Tech@EPR 16:24:57 10/05/12
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