How can my 1275cc rev to?

[vrooom]

i got stage 1 kit with hif38 carb.. and i got myself a smith rev 0-8k counter from ebay for £20.

And i wonder how can my mini engine rev to ? 5500rpm ?

how can you make it rev higher ? How do you know you can safetly push the engine to the highest part of rev?

Jay

[Buzzin' Hornet]

The main problem with the mini engine in standard form is it's inability to breath in and out. You may have fitted a stage 1 kit but the main problem is the cylinder head itself. The easiest solution is to find an MG metro engine. They produce about 70-75 hp I think and have improved breathing allowing you to rev a bit more. Make sure you get the carb as well as it is larger.

[Cooperman]

You should be OK to rev a slightly improved 1275 'A'+ lump to 6500. However, you won't gain much at those revs unless you fit a better head to improve the breathing, as already stated, and a better cam to get max benefit from the head/carb combination.
They sound a bit harsh when revved, but don't usually blow up unless you use over 6700 rpm regularly.
Ask Dodgy Dave what my 1293 cc rally car sounds like at 7000!

[sausagepilot]

If you look on my "is 998 great" post, I asked similar questions as I am keen to get a higher revving engine for my 1275 mini and didn't know where to start (I was considering a 998, Don't ask! ). Some people have given me some good advice on cam choice, so it might be worth you having a read.