[GoatZillaRacing]

Here's a link to the two styles of hyd roller lifters. https://pontiacspeedshop.com/sealed-...oller-lifters/

[PontiacMatt72]

Arrow Ingineering released info on the roller lifter guide plate system this evening! I’m convinced it’s worth a shot. I do wonder how it will wear over time, but think it’s a nice design.

There’s 2 videos on facebook (arrow Ingineering and Randy Repp’s pages), and the link below shows the plate system itself:
https://pontiacspeedshop.com/valvetr...-plate-system/

[AIR RAM]

wow, they are literally half of what the Johnson short travel lifters run... Its nice to see new options... just wish they came out before I spent a small fortune on the Johnsons.

SPEED SAFE, NICK

[n20ta2]

I like the idea, how will this work with available lifter bore braces? I wonder how this would work with really aggressive cam profiles.

[GoatZillaRacing]

I'll try and post the videos directly but in the meantime...

https://www.facebook.com/randy.repp....20566326806180
https://www.facebook.com/randy.repp....20566339326493
https://pontiacspeedshop.com/valvetr...-plate-system/

Thanks!

[shermanator2]

Originally Posted by GoatZillaRacing

https://www.facebook.com/randy.repp....20566326806180

Randy,

You try to make a point in the video about high lift cams. As I and others have tried to point out in the various threads about this subject, with a properly designed cam, the high point of the lifter travel is independent of the cam lift. It is the lifter drop that varies with the cam lift. The nose of any properly designed cam will be just a few thousandths below the journal radius. THe base circle of a high lift cam is smaller, so if you want to make a point about high lift cams you should show how much of the lifter flat is above your plate when on the base circle.

[GoatZillaRacing]

Originally Posted by shermanator2

Randy,

You try to make a point in the video about high lift cams. As I and others have tried to point out in the various threads about this subject, with a properly designed cam, the high point of the lifter travel is independent of the cam lift. It is the lifter drop that varies with the cam lift. The nose of any properly designed cam will be just a few thousandths below the journal radius. THe base circle of a high lift cam is smaller, so if you want to make a point about high lift cams you should show how much of the lifter flat is above your plate when on the base circle.

Good point. You can see in the video that the lifter is still completely held from rotating when on the base circle of this .400 lobe lift cam. You should check out the latest short video about how the lifter self aligns.
https://www.facebook.com/randy.repp....20571751861803

[GoatZillaRacing]

One area you don't hear about with the drop in Hyd Roller Lifters is the lifter body going below the oil feed hole in the lifter bore. The measurement is 2.000 from the base circle of the roller cam to the top of the oil feed hole in the lifter bore. This measurement is based on a 1.080 base circle cam.
Using our big .400 lobe lift cams, the Gaterman 1012 lifters still have a little room to spare as pictured in the first two pictures. The Sealed Power HT2148 lifters will expose the oil hole and spurt oil when the cam is on the base circle.
Our .377 lobe lift cams have a 1.135 base circle and work fine with either lifter.
Test your setup prior to firing it up by installing the cam and just placing the lifters in the bores. Keep the valley pan off and use your oil priming tool to prelube the engine and you'll see if it's losing oil. Some oil seepage around the lifter body is to be expected but if it looks like the Clampet's striking oil on the Beverly Hillbillies, you're asking for a rod or main bearing failure.
The key is to use a Hyd Roller cam with a 1.135 base circle or larger on a HT2148 lifter. Let me be clear, it will run regardless but at continued high RPM it will pump the oil to the top and bearings are going to suffer.
For anyone who has built an engine with these lifters and a large hyd roller cam, IF you don't know your cams base circle dimension, call your cam manufacturer and find out.
The hobby can't afford any more Pontiac blocks being destroyed.
Pics on our page at facebook.com/pontiacspeedshop

[1980 TA]

Will these lifters clear the factory valley pan?

[Murf]

Originally Posted by 1980 TA

Will these lifters clear the factory valley pan?

I haven’t used them yet but I can’t see how they’d have a problem. There is no link bar. They are way shorter than the retrofit style.

Murf


Sent from my iPhone using Tapatalk Pro

[P@blo]

Originally Posted by GoatZillaRacing

One area you don't hear about with the drop in Hyd Roller Lifters is the lifter body going below the oil feed hole in the lifter bore. The measurement is 2.000 from the base circle of the roller cam to the top of the oil feed hole in the lifter bore. This measurement is based on a 1.080 base circle cam.
Using our big .400 lobe lift cams, the Gaterman 1012 lifters still have a little room to spare as pictured in the first two pictures. The Sealed Power HT2148 lifters will expose the oil hole and spurt oil when the cam is on the base circle.
Our .377 lobe lift cams have a 1.135 base circle and work fine with either lifter.
Test your setup prior to firing it up by installing the cam and just placing the lifters in the bores. Keep the valley pan off and use your oil priming tool to prelube the engine and you'll see if it's losing oil. Some oil seepage around the lifter body is to be expected but if it looks like the Clampet's striking oil on the Beverly Hillbillies, you're asking for a rod or main bearing failure.
The key is to use a Hyd Roller cam with a 1.135 base circle or larger on a HT2148 lifter. Let me be clear, it will run regardless but at continued high RPM it will pump the oil to the top and bearings are going to suffer.
For anyone who has built an engine with these lifters and a large hyd roller cam, IF you don't know your cams base circle dimension, call your cam manufacturer and find out.
The hobby can't afford any more Pontiac blocks being destroyed.
Pics on our page at facebook.com/pontiacspeedshop

Thanks for posting this information Randy!

[1968GTO421]

Can anyone explain or show me how this plate retention system works? I look at the plates in the photos in post #34 and my engineering imgination is so weak I cannot envision how this would work.
Thanks.

[78w72]

Originally Posted by 1968GTO421

Can anyone explain or show me how this plate retention system works? I look at the plates in the photos in post #34 and my engineering imgination is so weak I cannot envision how this would work.
Thanks.

vids are in post #45.

https://www.facebook.com/randy.repp....20566326806180
https://www.facebook.com/randy.repp....20566339326493

[Scarebird]

links broken.

[78w72]

Originally Posted by Scarebird

links broken.

i might have messed up copying & pasting them... the original links in post #45 work, just clicked it & watched the vid.

[Tom McQueen]

I went with the Morel .903" hydraulic roller setup. These are a .120" travel, .810" roller wheel and work fine up to 7500 RPM.
Designed for use with seat pressures in the 100-225 pound range and open pressures of 350-550 pounds.
Straub Technologies sell them.

[cgeise]

would like to see a rolled lip on the edge that contacts the lifter --- just saying

[rohrt]

Anyone running this setup yet?

[Murf]

I tried to. I ordered it but he was having the hardware redesigned. I ordered it the first of March, got a refund the end of May. I couldn’t wait any longer.
I think it’s a good idea. I may try it in the future. I have a new set of lifters for that set up I need to do something with.

Just one of those deals.

Murf


Sent from my iPhone using Tapatalk Pro

[GoatZillaRacing]

After many months of waiting, we fired the other guys and bought the machinery to make the Custom Injuneered Hardware for our Roller Lifter Guide Plate System in house. All backorders will be filled and plenty of extras ready for The Pontiac Nationals and INJUN WARS.
https://pontiacspeedshop.com/valvetr...-plate-system/