Official IS300 Cam/Head Thread - Page 2 - Lexus IS Forum
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post #16 of 88 (permalink) Old 08-06-2012, 11:11 PM
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Just wanted to put this thread back to the top. Alot of good info.
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post #17 of 88 (permalink) Old 12-05-2012, 02:59 AM Thread Starter
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264 cams




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post #18 of 88 (permalink) Old 01-08-2013, 03:19 PM
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damn that sounds so mean
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post #19 of 88 (permalink) Old 01-13-2013, 06:04 PM Thread Starter
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Update

Brain Crower is coming out with BC8830 - 2JZ/1JZ Cam Gears -
Date: 03/2013


BrianCrower.com | RunBC.com

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post #20 of 88 (permalink) Old 01-13-2013, 07:31 PM
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sweet, their head stuff is awesome so far, hope their cam gears are also.
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post #21 of 88 (permalink) Old 04-01-2013, 09:22 PM
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I know the cams make a big difference and I know with stage 2 you dont need it but what would be the benefit of buying the BC valves or would there be any?
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post #22 of 88 (permalink) Old 04-02-2013, 06:17 PM Thread Starter
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Originally Posted by dannyboy89 View Post
I know the cams make a big difference and I know with stage 2 you dont need it but what would be the benefit of buying the BC valves or would there be any?
I can say from my own experience YES . They are lighter , precision made, and really help rpm travel mid to higher rpm levels . To me cams alone vs fully built head with everything BC .... Felt better with BC valves

* you will need to pull head to do valves

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post #23 of 88 (permalink) Old 05-16-2013, 07:24 PM
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Is there another part to jeffs videos?

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post #24 of 88 (permalink) Old 05-17-2013, 10:37 AM Thread Starter
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No , is300 tech manual has all the info you need to do install, if you can't do it right with a manual you shouldn't be doing it at all.

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post #25 of 88 (permalink) Old 05-17-2013, 09:07 PM
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Quote:
Originally Posted by Bezik777 View Post
No , is300 tech manual has all the info you need to do install, if you can't do it right with a manual you shouldn't be doing it at all.
Is there a better tech manual the one I have just says tighten the bolts down to a specific torque inorder and npthing else.

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post #26 of 88 (permalink) Old 05-30-2013, 12:47 PM
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where to download said manual?

everything in the install seems pretty straight forward, its just measuring clearance and the re-shimming part that has me confused.

If someone could just post ONE picture of what exactly is to be measured, and label it with a few arrows on paint,

and then what exactly needs to be done for re-shimming.

noob questions i know, but im sure others are wondering the same thing
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post #27 of 88 (permalink) Old 05-30-2013, 12:54 PM
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post #28 of 88 (permalink) Old 06-18-2013, 04:34 PM
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Sulaman, LazyIS and willemkent.... I think the measurement you are confused about is the lash/clearance. The lash is measured between the cam and the top of the shim when each valve's respective lobe is facing perpendicular (straight up, aka the heel of the cam lobe) from the surface of the shim.

These next links show where you should be measuring: between the heel of the cam lobe and the top of the shims. Notice, NONE of the links below are specific to the IS300 2JZGE however, the concept should be the same. I would have just inserted pictures but I don't feel like dealing with copyright ANYTHING so I copied the links.

Nissan Rb26dett Shimming Valves Photo 20
Quick valve clearance question - SV650.org - SV650 & Gladius 650 Forum - the post by JAMBO
Checking Valve Clearance - the 2nd picture down

This link shows what OUR buckets/shims should look like. The shim seems pretty easy to get to and measure with the cams uninstalled.

Pics: How to shim your valves

The IS300 owners manual designates special tools to be able to remove the shims with the cams installed however, leonardIS300 who I consider to be a GOD on this forum, advises not moving shims around with the cams installed and he has done them enough times to know. You can see specifically what he has to say about this by following this link:
Brian Crower Cams-What you can expect (official owner experiences FAQ) Mild NWS p13

Last edited by Savage_IS300; 06-18-2013 at 04:56 PM.
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post #29 of 88 (permalink) Old 06-19-2013, 09:05 PM Thread Starter
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Angled feeler gauge is best to check clearance .

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post #30 of 88 (permalink) Old 11-29-2013, 12:46 AM
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Besides upgrading the valves and lifters with the BC stage 2 cams...is there anything that needs to be done in regards to the VVT-i. I have a Apexi SAFCII.
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