[Spridgets] Bugeye/Frogeye Club..... Go Fast Rocker arms etc.
Lester Ewing
oldsaabguy at comcast.net
Mon Aug 8 14:01:57 MDT 2016
Thanks all!!
Off to the inter webs I go!
Lester
On Aug 8, 2016, at 2:19 PM, Michael MacLean <rrengineer.mike at att.net> wrote:
> 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 spec
>> 63 Mini 850
>> 59 Austin Healey Sprite
>> 58 Morris Minor Panel van
>>
>> __
>
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