Where To Get Neo Shims

[Jayden.K]

im going to purchase some tomei 260 cams and i have looked everywhere for shims just in case i need to change them, i have had no luck. i assume a set will come with various sizes depending whats needed or if theres a shop you can order them from in any size that would be good. and also im sure its been said a million times but still get 4 different answers, which clearances factory or tomei spec??

[wolverine]

I would go factory specs if I had my time again as Tomei specs mean the lifters are slightly noisy on the stagea.

http://www.precisionshims.com.au/a/Precision-Shims-Australia

[brad 110]

I have converted two neo heads to shim less buckets so have 48 shims that might get you out of trouble

[urtwhistle]

if that fails Precission shims are great to deal with too

[Jayden.K]

i thought to change the clearance the buckets them selves were different thickness so you put in a different bucket? so there is shims that go in the bucket??

[Jayden.K]

I have converted two neo heads to shim less buckets so have 48 shims that might get you out of trouble

what variation in size is the shims you have or they all mostly the same??

[GTSBoy]

i thought to change the clearance the buckets them selves were different thickness so you put in a different bucket? so there is shims that go in the bucket??

Neo has shims. Shim over bucket. Easier to change than shim under bucket, but also easier to spit them out at high revs if you get valve float, which kinda sucks. Shimless buckets are the bees knees for less weight and part count with zero risk of spitting a shim....but then you have to change the buckets if you need to alter clearances. Everything is a compromise.

[brad 110]

Not sure in variation I never checked as I never planned to use them, do you want me to check?

[Jayden.K]

where can i get solid buckets with different thicknesses and why the shit didnt they have these is the first place haha,

[Jayden.K]

Not sure in variation I never checked as I never planned to use them, do you want me to check?

yeah check the sizes please and i might buy them

[brad 110]

Qr25 shim less buckets

[Jayden.K]

Qr25 shim less buckets

oh ok so they are shimless, great!!. QR25 what does that stand for isnt that another motor and what thickness are these buckets? also you mention you ''converted'' 2 neo heads to shimless what is required?

Edited January 25, 2013 by Jayden.K

[Jayden.K]

Also I've seen some people not having to change any clearances due to the base circle being the same, and factory clearance being tighter anyway? Would this seem right because then I wouldn't have to worrie

[kitto]

Fit the cams. Get the feeler gauges out and measure the clearance! Its the only way to know. Yes you need to check all 24.

0.50mm +/- .04mm for inlet

0.31mm +/- .04mm for exhaust