Roller lifter for type 4

Passatman · Post by **Passatman** » Mon Aug 29, 2005 5:30 am

Hi all,
Haven't posted here in year's, but i'm back. Quick question doe's anyone know if jake sell's roller lifter's and camshaft for t4 engine.

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Mon Aug 29, 2005 5:57 am

Development of them is being finished as we speak...

Passatman · Post by **Passatman** » Mon Aug 29, 2005 6:00 am

That's great if i have the money i think i will get them.

Passatman · Post by **Passatman** » Mon Aug 29, 2005 6:05 am

Jake do you have any of the upright conversion manual for t4 around at the store.

Wally · Post by **Wally** » Wed Aug 31, 2005 12:27 am

MASSIVE TYPE IV wrote:Development of them is being finished as we speak...

Cool!
What would be the main benefit from them over ceramics? Friction wise it would hardly be possible to beat the ceramics one would think..or does it?
Weight of a ceramic is also hard to beat...
Steeper lifting angles perhaps for short-life (valve guides) racing engines?

Tnx,
Walter

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Wed Aug 31, 2005 7:54 am

What would be the main benefit from them over ceramics?

Well.... For one these would be easy to get... for another the roller design allows the valve to be ultimately controlled and a cam grind no longer has to worry about ramp speeds, since the roller lifter doesn't rotate in the bore.. This means we can slightly open the valve right off the seat till the point of max piston interferance and then 2 degrees after that we can slam it home as fast as we can- this super increses chamber filling. The ceramic lifters are still a flat tappet and this can't be safely done with them.

Friction wise it would hardly be possible to beat the ceramics one would think..or does it?

Thats why these roller lifters have a ceramic rotating foot- zero friction from the ceramic coupled with the benefits of the roller profile.

The right combo of rollers will create a 2056 thats just as strong as a 2270 with flat tappets.... The roller set up will only be 650.00 or so!!!!!

Rescue912 · Post by **Rescue912** » Wed Aug 31, 2005 8:35 am

The right combo of rollers will create a 2056 thats just as strong as a 2270 with flat tappets

sign me up ...

Wally · Post by **Wally** » Wed Aug 31, 2005 11:08 pm

Thanks for the informative reply Jake!
Then you must also design a whole new array of cams for it I guess

Would they also need more spring?

Walter

Pat.B · Post by **Pat.B** » Thu Sep 01, 2005 12:20 am

Any cam should work with these lifters provided that they are
ground for use with roller lifters then? or can they be used with conventional lobe desighns?...

Wow Roller lifters, cool

Pat.B

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Thu Sep 01, 2005 5:54 am

Running a conventional cam lobe with these lifters would not take advantage of their capabilities.. All the cams that will be used for these arrangements will be billet steel blanks- not cast iron.

Yes, this has been a huge undertaking so far in the cam profile department- starting from ground zero is what it has taken.

More when I get to the next stage and can share it.

Bleyseng · Post by **Bleyseng** » Thu Sep 01, 2005 7:02 am

Whats the time table for these? I am thinking maybe of installing my set of ceramics in the 2056 914 motor and going to the roller lifters for the 2.4l if they are coming out in the next six months.

Geoff

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Thu Sep 01, 2005 9:05 am

It'll take way more than six months to even get a couple of cam grinds made and perfected. The company doing the cam work with me is NASCAR based so not much will get done until the end of their season.

Bleyseng · Post by **Bleyseng** » Thu Sep 01, 2005 4:41 pm

ok, I'll forget that idea.

RG64 · Post by **RG64** » Fri Sep 02, 2005 9:29 pm

Jake, will any machining need to be done to the case or lifter bores to accept the roller lifters?

Rick

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Sun Sep 04, 2005 12:18 pm

Nope...
Drive in the bushings with the supplied tool and you are done. The bushings reduce bore diameter a tad and also align the lifters in their axis so they cannot rotate.