Lifters

Been doing some searching online as was thinking about replacing standard shim lifters for solid lifters or even better hydraulic ones.

But can't find any of the UK jap turning and supra specialists that stock solid lifters or hydraulic ones. I found that in Australia and USA can get solid lifters made and are quite widely used in the 2jz builds.

Was wondering if any one knows of anywhere over here can get solid lifters or best option would be getting hydraulic ones.

Seems pretty unnecessary to switch to a hydraulic lifter, most hydro guys want to go solid.

Most people just switch to solid buckets and call it a day. If I remember correct there is another Toyota engine that has solid buckets from factory which can be bought from toyota with a variety of available shims

Seems pretty unnecessary to switch to a hydraulic lifter, most hydro guys want to go solid.

Most people just switch to solid buckets and call it a day. If I remember correct there is another Toyota engine that has solid buckets from factory which can be bought from toyota with a variety of available shims

I like the idea of hydraulic to save the hassle of setting the lifters, would be happy with solid lifters but was unable to to find anything about solid lifters on Whifbitz and SRD's website only on sites in USA and Australia was able to find information on solid lifters, problem I have is don't want to get head built with standard bucket settings then if can afford to buy 264 cams have to pay again to get lifters set for my build but also need head built ready so can fit to block so engine sealed and dust free.

For hydraulic lifters you would need oil galleries drilled etc, not an easy job and i doubt you would find anyone willing to do the job, also hydraulics are usually replaced when raising the rev limit, the std shims being under bucket are designed that way to prevent shim spitting at high RPM anyway.

I would drill the oil galleries myself as am cnc programmer and have ported and polished block on machine at work, the main reason was thinking solid or hydraulic was the weight saving on valve train, thinking may have to stick with the standard lifters

More bulk to hydraulic lifters, and sod all in it with solid/shimless, also not sure the 2jz was ever designed to run hydraulic lifters so you may find there wouldn't be enough room to drill block and head.

More bulk to hydraulic lifters, and sod all in it with solid/shimless, also not sure the 2jz was ever designed to run hydraulic lifters so you may find there wouldn't be enough room to drill block and head.

The stock shims and lifters weight 44-45grams each. Solid lifters weight 27-28grams so over 24 valves that's around 408gram weight difference and then if you include the BC springs and Titanium retainers (4 titanium retainers weight less than 1 stock oem retainer) then overall are saving quite a lot of weight in the valvetrain.

And as we all know less weight for engine to rotate equals more power and better response

I am surprised at the difference, though it was less, are you going for increased rev limit then? i very much doubt you would notice any difference with stock limit.

I was also very surprised with the difference, I not necessarily increasing the rev limit, just looking at improving every part of engine so only do this build once.

Gen III and later MR2 one piece (not shim over bucket) tappets are a straight fit, I am building a MKIV drag race unit that is using them. They are individually sized, so you need to do some accurate measurements as they are EXPENSIVE. Unless it's a race engine the weight saving is unnecessary and pointless. Same with titanium top hats, you NEVER want to use Ti top hats with steel collets unless it's a race engine and will be stripped regularly. As for hydraulic tappets, they will be FAR heavier than even the stock shim over bucket tappets, and whether the oil feeds to get pressured oil to them is feasible is a moot point, I suspect it would NOT be possible. Use whatever springs the cam grinder specifies, avoid US springs where possible, the Germans and Japs make the best springs these days, as they do the best piston rings.