Just installed rebuilt valve cover
11-20-2009, 11:58 PM
#1
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Just installed rebuilt valve cover
Wow what a difference! 5th gear 80 no problem on I5! turns those 37's like stockers!
Worth every cent of the 200 bones i paid.
in all the years ive been here no ones been stupid enough to say they rebuilt a valve cover. So I had to. I had to one up the newbs. 
and im completely bored on a friday night. BAN plz 
Worth every cent of the 200 bones i paid.
in all the years ive been here no ones been stupid enough to say they rebuilt a valve cover. So I had to. I had to one up the newbs. and im completely bored on a friday night. BAN plz
11-21-2009, 01:00 AM
#4
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LOL nice, ya i have a painted valve cover.. NOT.. 
I put a red one with polished "TOYOTA" on the rebuilt i did for my parents lil 2wd =p
so yea it totally made that truck FASTER! haha
I anticipate many more redonkulous replies. keep em coming! =)
I put a red one with polished "TOYOTA" on the rebuilt i did for my parents lil 2wd =pso yea it totally made that truck FASTER! haha
I anticipate many more redonkulous replies. keep em coming! =)
11-21-2009, 01:02 AM
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*REALLLLLLY wishes he had the link to the bike forum thread where the guy actually put the energy drink in his motorcycle and ruined it and actually thought it was suppost to make it faster*********
anyone have that link, i forget where i saw that, but im sure its pretty famous by now
11-21-2009, 12:45 PM
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Trending Topics
11-21-2009, 05:41 PM
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Yeah, rebuilding those valve covers is a chore, I spent like 4 hours honing mine and I have at least another 2 weeks of repitching my bolts so they screw in faster, it's hard work but worth it in the end 
i painted it but ran out of RTV so the half moon seals are leaking 
11-21-2009, 06:07 PM
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I've got NOS on mine. It runs like a beast for 2 minutes and 46 bucks to fill the tank, and the kit was $400. was worth it? when my 4runner does a fatty burn out, it was woth every cent.
11-21-2009, 06:09 PM
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11-21-2009, 07:42 PM
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Oh yea! When I rebuilt my valve covers I got at least 21 more horsepower! I can't believe everyone doesn't do it. You can really feel it at the wheel ( unless you're in 4wd, then wheels)
11-21-2009, 10:37 PM
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Sweet! I hear those carbon fiber valve covers give you like 5 more horsepower than the YotaTech sticker does, anyone still making them, the valve covers I mean? 
Last edited by KelleyC; 11-21-2009 at 10:38 PM.
11-22-2009, 02:17 AM
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11-27-2009, 08:48 PM
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11-27-2009, 09:23 PM
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I was holding back on reporting this, but I'm prototyping a valve cover that turns the stock valve train in to a desmodromic configuration with roller followers over the cam and hydraulic tensioners.
Basically, the rocker arms follow the cam with rollers and there are hydraulic adjusters taking up the slack. What's not seen is the linkage that is part of the valve cover and uses hydraulic principles and closes the valves without the high tension from the valve springs- just a little bit to keep a valve closed.
It's like what you'd expect if a 'yota cross bred with a Ducati motorcycle.
My hold-up is "prior art" and feasibility studies.
Basically, the rocker arms follow the cam with rollers and there are hydraulic adjusters taking up the slack. What's not seen is the linkage that is part of the valve cover and uses hydraulic principles and closes the valves without the high tension from the valve springs- just a little bit to keep a valve closed.
It's like what you'd expect if a 'yota cross bred with a Ducati motorcycle.
My hold-up is "prior art" and feasibility studies.
Last edited by abecedarian; 11-27-2009 at 09:25 PM.
