Doesn't it just... I used to fill up at the pump on the apron back when I was an apprentice. Was very bent out of shape when the company sold the pumps to another crowd and they put stop to it.
On weekends there was a queue of Porsches, Ferraris and various boats and bikes waiting to fill up.
Then the Taxman put the brakes on that one...... bah!!
I dream of roller rockers and a roller cam... Can these be obtained in the uk?? Do you think it is this that made all the difference?? Lift velocity so much higher I suppose. And they look so good:-)
I've got a set of the Kenne Bell roller rockers,with the heavy duty shafts and steel posts with outriggers !
They look so sexy,I should have glass rocker covers !
Hi
To do a roller cam on a rover he easiest and cheapest way over here is to use Chevy aftermarker roller tappets (link bar type), chevy push rods, a Buick 215 blank (in steel) with a suitable cam profile ground on it (from someone like Comp cams or Iskydine in the states) and you need to do something about the timming chain. Valve springs are just a case of finding the right ones in someones catalog.
On one of the american rover V8 sites they are keen of using modified chevy "dog bone" type lifters. . Hovever that is because in the states they have scrap yards full of the things in Chevy vortec engines and they go for pennies used. If you want to go that route then you end up buying new and as the shipping is the same for both sorts, the factory lifters new and not very much cheeper you then eng up having to have the "dog bones" made and end up spending about the same money for an inferior set up.
Best regards
Mike
I have chevy hydraulic lifters in the Escort so i guess the lifter diameter is the same as Rover ??
Perry Stephenson
MGB GT + Rover V8
9.62 @ 137.37mph
Now looking for 8 seconds with a SBC engine
http://www.youtube.com/watch?v=nVscbPHgue0&list=UUqIlXfSAoiZ--GyG4tfRrjw
mgbv8 wrote:I have chevy hydraulic lifters in the Escort so i guess the lifter diameter is the same as Rover ??
It's not the .842" lifter bore thats the problem, its the spacing between the lifters and the lift that defines the link bar length & slot length. If they are not correct the articulation will not allow you to fit the lifters in pairs.
mgbv8 wrote:I have chevy hydraulic lifters in the Escort so i guess the lifter diameter is the same as Rover ??
It's not the .842" lifter bore thats the problem, its the spacing between the lifters and the lift that defines the link bar length & slot length. If they are not correct the articulation will not allow you to fit the lifters in pairs.
OK!
You mean those funny bars that Kiwi has on the Slingshot engine
I understand now !
Perry Stephenson
MGB GT + Rover V8
9.62 @ 137.37mph
Now looking for 8 seconds with a SBC engine
http://www.youtube.com/watch?v=nVscbPHgue0&list=UUqIlXfSAoiZ--GyG4tfRrjw
Hi
When I had my engine apart the time before last Reg (r2d2hp) borrowed a pair of lifters and tried them in his Rover block, I am pretty sure they fitted ok (Link bar wise, I know the bores are the same!)
Best regards
Mike
From my untrained eye they looked fine to me. There was no binding of the link bar so to use we would have to have a roller cam made and work out some mechanism to apply some pressure to hold them against the cam.
If Phil is getting a custom cam ground for supercharger use the maybe we could look at getting several done to reduce the cost.
Don’t you have some sort offspring assembly that hold the roller followers against the cam. You would not want then bouncing when using adjustable rockers and tappet gaps.
Guess an option would be to use hydraulic roller followers
You sometimes see springs between the underside of the head and the lifter, that's old technology, called a rev kit in the days when modern valve springs weren't available, also known as a helper spring. You don't want to float the valves with a roller follower but nowadays they just run a whole bunch of spring pressure up top to achieve the same result.
