9 replies to this topic

[rik_t]

I've been enjoying my first couple of journeys out in my 1993 Mini 1275. I think it has stage1 kit and HS4 carb with K&N filter. Just wondering what things I can look towards in the future to improve performance? 

 

Thanks

[rally1380]

HIF44 carb and a decent cylinder head for a start. Then a cam change. Also consider better exhaust system if not already fitted.

[minilee94]

As said above really depends how much you spend

Or you can get your head worked on ( polished ported bigger valves etc )

[AVV IT]

A 1993 1275 would have had a HIF38 as standard, so are you sure it's an HS4? Either way, you'll need a HIF44 or similar if you're planning any further mods.

As above though, an upgraded head would be the next stage if you've already got a stage 1 kit, ideally with a warmer cam in order to get the most from it. I believe that the non cooper Rover 1275's at that time were fitted with low compression engines, producing around 10bhp less than a standard 1275. I seem to recall that this was achieved by using different pistons, so you should find that you could gain that power back by replacing the pistons with standard items.

[Cooperman]

First of all decide what you want to use the car for.

Then read through the many, many threads on here discussing performance up-grades.

Then decide how much you can afford to spend.

From that you can develop a specification and post it on here and we'll all discuss it with you.

[rik_t]

This is the carb, have I put the wrong one down?

 

[Stevie W]

Hi,

To confirm that's an HIF type carb as should be fitted!

Cheers, Steve

[HarrysMini]

Yep, that's a HIF carb.

The next step for tuning, after a 'stage 1' kit, is to get a better flowing head. This involves enlarging and polishing (gas flowing) the ports, and possibly fitting bigger valves.
Then you'll want I consider a cam change (engine out job).
You could also raise the CR.

[rik_t]

Thanks guys. Forever learning lol

[Kam]

Nothing wrong with learning, it all helps you at the end of the day

 

Check out a FAQ on here, its in the engine dept in the contents sticky along with some others 

 

http://www.theminifo...showtopic=18761