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| Home > 998cc > Are rockers the same on 998cc's and 1275s? | |||||||
 3341 Posts Member #: 218 Post Whore Bingley, West Yorkshire |
17th Apr, 2006 at 06:46:51pm
Am i ok to use rockers from a 998cc engine?
Previous Engine: 1040cc Morespeed engine, 1275 turbo head T2 Turbo Mirage Manifolds Megajolt
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 2521 Posts Member #: 417 Post Whore Swindon |
17th Apr, 2006 at 08:01:20pm
Depends what head you are using
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 9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
17th Apr, 2006 at 08:20:12pm
The valve spacing is different between the 998 and 1275 heads, so you'll have to use thbe cortreccly spaced rockers. I'm guessing that you have a 1275 head as you say it's a turbo one.
Fastest 998 mini in the world? 13.05 1/4 mile 106mph
On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination, talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry. |
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 7765 Posts Member #: 74 I pick holes in everything.. Chief ancient post excavator |
17th Apr, 2006 at 09:40:09pm
The sintered rockers are the same, but there is a difference on the pressed steel ones. The 998 ones have round valve contact pads whereas the 1275s are oval. The oval ones are supposedly of higher lift, but I've never measured myself.
On 13th Jul, 2012 Ben H said:
Mine gets in the way a bit, but only when it is up. If it is down it does not cause a problem. |
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3341 Posts Member #: 218 Post Whore Bingley, West Yorkshire |
17th Apr, 2006 at 10:00:07pm
Nice one!!! 1275 rockers and 998 pushrods thats great!! thankyou.
Previous Engine: 1040cc Morespeed engine, 1275 turbo head T2 Turbo Mirage Manifolds Megajolt
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3341 Posts Member #: 218 Post Whore Bingley, West Yorkshire |
17th Apr, 2006 at 10:03:16pm
Heres a photo from today...
Previous Engine: 1040cc Morespeed engine, 1275 turbo head T2 Turbo Mirage Manifolds Megajolt
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 6274 Posts Member #: 509 Post Whore Isle of Man |
17th Apr, 2006 at 11:42:31pm
are the engine mounts next?
"Turbo's make torque, and torque makes fun"
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9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
18th Apr, 2006 at 07:53:31am
On 17/04/2006 22:00:07 feebleuk said:
ps, just to check, ive used the 998 head studs from that 34000 mile engine that ok? Probably, but new ones are only a few squid each. Fastest 998 mini in the world? 13.05 1/4 mile 106mph
On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination, talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry. |
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3341 Posts Member #: 218 Post Whore Bingley, West Yorkshire |
18th Apr, 2006 at 10:56:16am
nice one ill get new ones ive heard about stretching or something. Grinding the valves in today Previous Engine: 1040cc Morespeed engine, 1275 turbo head T2 Turbo Mirage Manifolds Megajolt
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