rocker cover question..

[constantdreamer]

a quick question for someone.....I'm looking to buy some high lift rockers for my mpi but I'm wondering will the standard rocker cover have enough clearance for them? the only reason i ask is because I see minispares sell their own brand of rocker cover and state that it is made to fit high lift rockers.

[Merlin]

I would Greatly advise you do not put 1.5 roller rockers on an otherwise standard MPI all this will succeed in doing is wearing out you cam, I know John Cooper used it as part of his tuning kit but I have had many John cooper minis in my garage with worn out camshafts.

If your looking for more power try having the head ported and polished and fit one of the alloy throttle bodies this will increase you power and save your engine.
regards,
Paul.

[constantdreamer]

well i have stage 3 head with full maniflow system and k&n filter. I'm just looking at what to do next. You reckon the 52mm throttle body is worth it over high lift rockers?

[Merlin]

It is a wort wile modification,

the standard cam in the MPI is made from a very soft material this when coupled with double valve springs which will be on your stage 3 head and 1.5 roller rockers will wear out in no time we are only talking about a couple of 1000 miles at best ! if you want more power you will need a cam change or a displacement increase,
regards,
Paul.

[constantdreamer]

yeah I was looking at the cams from swiftune and such and they seems relatively good value, taking the engine out is a wee bit daunting though . maybe I'll give it a go next summer and change the final drive while I'm at it. anyhow cheers for the advice, I'm pretty new to tuning and mechanics in general so I need all the advice I can get,ha.

[wzd345]

To answer the original question:

Yes, the standard rocker covers will accommodate all the high lift rocker gears. The alloy aftermarket ones, including the MG Metro cover will almost all need to be relieved somewhere on the inside for full clearance.

The one on your car is always the cheapest and you can repaint, fit vent pipes or chrome it to suit yourself.

[quote="constantdreamer"]a quick question for someone.....I'm looking to buy some high lift rockers for my mpi but I'm wondering will the standard rocker cover have enough clearance for them? the only reason i ask is because I see minispares sell their own brand of rocker cover and state that it is made to fit high lift rockers.[/quote]

[constantdreamer]

cheers wzd345. I reckon I'll take Merlin's advice though and leave the rockers until I change cam.