[Spridgets] Bugeye/Frogeye Club..... Go Fast Rocker arms etc.

[Michael MacLean]

www.aptfast.com
Mike MacLean
 

    On Monday, August 8, 2016 10:28 AM, Lester Ewing via Spridgets <spridgets at autox.team.net> wrote:
 
 

 And where would one purchase a decent roller rocker setup?  
Thanks,

Lester

On Aug 8, 2016, at 11:08 AM, Mark Hendrix <alabmwstretch at yahoo.com> wrote:

I've run a 1.7:1 billet aluminum roller rocker set up on a stock bore and cam 1275 with a cross flow head with 40mm webers on it. It worked great. I did manage to break a single rocker by wildly over revving it and can say it wont stand 9500 rpm well. This engine is in a Morris Van with a  Toyota 5speed gearbox and a 3.70:1 rear end.    I too am building a 0.060 over 1275 with a wild cam. Its a Kent cam. I can dig up the specs if you need but I must say I will NOT be able to use the 1.7:1 rockers due to spring bind. The valves open too wide and compress coils of the valve springs against themselves. I am using heavy springs. I am not sure what I will do about this. I hope a switch to a 1.5:1 ratio rocker will cure the trouble. I will be putting this engine in my sprite with a 4.55:1 differential and a Datsun 5 speed gearbox.    These vagaries aside I am well pleased with the performance of the rockers. They are much quieter than stock and allow a lively throttle response in the mid range and upward, 2500-6500 with the stock cam in the Morris van. I got them through Mini Spares.
Good Luck, careful assembly will make it work, if all else fails throw money at it…

This is where I am now!  After spending the money for a go-fast setup…  sigh.


Happy Trails
Stretch Hendrix
80 Mini Countryman Cooper S spec63 Mini 85059 Austin Healey Sprite58 Morris Minor Panel van
__

------------------------

spridgets at autox.team.net

Donate: http://www.team.net/donate.html
Suggested annual donation: $12.75

Archive: http://www.team.net/archive
Forums: http://www.team.net/forums
Unsubscribe/Manage: http://autox.team.net/mailman/options/spridgets/rrengineer.mike@att.net


 
  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/spridgets/attachments/20160808/ea432c54/attachment.html>