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Discussion Starter #1 (Edited)
Searching for vavles, I found that Riddick posted that he used Ferrera valves, I assume he meant Ferrea?

Their catalog lists:



SUZUKI TL 1000 (1998/1999)
Part------Head-Stem-Overal---Tip
Nº--Type-Diam.-Diam.Length--Length References
F0249 E 33mm 5.46mm 89.56mm 1.7mm 19º Flo. Stock Size
F0239 E 34mm 5.46mm 89.56mm 1.7mm 19º Flo. 1mm Oversize
F0250 I 40mm 5.48mm 99.50mm 1.7mm 19º Super Flo. Stock Size
F0240 I 41mm 5.48mm 99.50mm 1.7mm 19º Super Flo. 1mm Oversize

The "Super Flo." usually means the stem is under-cut where the mix flows by and it's not inside the guide, really fancy stuff. Anybody got more info on these? Polished heads, does the shape affect the compression at all? If you use the oversize valves, do you have to have a big-bore to get any advantage (looks like the vavle is getting close to the cylinder wall and won't flow that great at small openings like that). If you pocket for bigger valves, do youlose compression and need higher-dome pistons? Catalog doesn't show any prices, how much is a set of 4 inlet & 4 exhaust?

Also, if you have your valves ceramic-coated I've heard it helps them run cooler; but does it stay on long-term? Does is clean itself like a self-cleaning oven, or still accumulate carbon? Do polishes stainless steel valves tend to accumulate less carbon buildup thans stock ones?
 

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Premium Member
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Discussion Starter #2
And titanium blanks:

F0254 I 41mm 5.48mm 135mm BLANK 15º Flat Head

F0255 E 33mm 5.47mm 135mm BLANK 19º Flat Head (so I'd have to ream guides)
 
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