38 replies to this topic

[MRA]

 

1500 and 6000 would be acceptable power band, or 1500 and 7000

 

But it really depends on your driving style not anyone elses...

 

So where does this leave me in terms of cam selection?

 

And how do I determine driving style to suit a cam when the specifications are purely number based, not based on driving style? 

 

Your driving style as AC said above is key to what you want, what do you currently drive ?  do you thrash it to within an inch of it's life ?  do you simply plod around, but like to heave it in to the occasional corner, do you driver in heavy traffic, you need to write down all the different times you drive differently and maybe associate a percentage to each, ie 95% of the time I drive in traffic, and the other 5% I thrash the hell out of it along the country lanes etc....  if you pull a trailer or a car full of people, are you planning on racing in the occasional weekend "run what you brung" at your local drag strip ....

[Fordy]

 

 

1500 and 6000 would be acceptable power band, or 1500 and 7000

 

But it really depends on your driving style not anyone elses...

 

So where does this leave me in terms of cam selection?

 

And how do I determine driving style to suit a cam when the specifications are purely number based, not based on driving style? 

 

Your driving style as AC said above is key to what you want, what do you currently drive ?  do you thrash it to within an inch of it's life ?  do you simply plod around, but like to heave it in to the occasional corner, do you driver in heavy traffic, you need to write down all the different times you drive differently and maybe associate a percentage to each, ie 95% of the time I drive in traffic, and the other 5% I thrash the hell out of it along the country lanes etc....  if you pull a trailer or a car full of people, are you planning on racing in the occasional weekend "run what you brung" at your local drag strip ....

 

 

My daily driver at the minute is a Focus ST, do little mileage (2000 miles, 3000miles max a year) and next to no traffic so probably something around 70% foot down and 30% plodding about.

 

However, I wouldn't use the mini for a daily it would be for taking out on a weekend, Friday to work and something to have ongoing as a project.

 

Wouldn't be taking a car full of people in it or pulling a trailer.

 

And don't think I'll be taking it on track, but want something that can hold it's own off the mark, with a good noise.

[ACDodd]

Ok you are looking at a Kent 246, 266 or my ACD - RS for a sensible gas road motor.

Ac

[Fordy]

Ok you are looking at a Kent 246, 266 or my ACD - RS for a sensible gas road motor.

Ac

 

Thanks. I had been looking at the Kent 266 as an option, but every time I said to myself that was what I was going to go for I toyed with the idea of the 276 after watching various videos on Youtube, mainly based on noise, hard to tell performance.

 

What figures I could I be looking at with the Kent 266, modified head, standard 1275 bore, 3.44 diff, twin HS4 SU carb (currently got a single HS4 but debating a twin)

[KernowCooper]

75-80bhp and a quick fun Mini is where I'd be looking at, the cams AC suggested would do just that with the right amount of head work and compression ratio

[Fordy]

75-80bhp and a quick fun Mini is where I'd be looking at, the cams AC suggested would do just that with the right amount of head work and compression ratio

Around 80bhp would be ideal.

 

Would there be any other modifications that you would suggest to be done that the ones stated above?

[KernowCooper]

I would run a HIF 44 carb as fitted to the MG Metro as standard and a maniflow 3-2-1 manifold into a 1 3/4 system in addition to the above, good twin carbs cost a fortune, and all the cheap sets are worn out, and you'll never get the same idle twice. Thats why people say twins are all the time going out of balance, worn ones are !

[MRA]

I would doubt you will get 80bhp from a 246 or even a 266, you would with a 276, but then I have never used a 246 or a 266 in anything other than a 998....  of course it depends on the rest of the system as well, you need to mix the correct ingredients to get the best results.

[ACDodd]

On a 1275 based engine using stock rockers and a flowed head you will most certainly achieve 80+ bhp with a single hif 44 if the engine is run in correctly and tuned properly with the 246 or 266 cams.

Ac

[Fordy]

Interesting. All good knowledge for someone such as myself new to the Mini game.

So if a Kent 276 was selected would this mean more bhp, but the engine would have to be used in a high rev range and be kept at higher rev's to get the most from the cam? Reducing life and time between servicing?

[MRA]

The 276 is drivable on the road, it doesn't require high rev s to get it going, you don't have to thrash it about.

[Fordy]

Oh right ok.

So what would be the difference in performance and work required between the 266 to the 276?

[ACDodd]

276 lopey idle, 266 smother idle (like mg metro cam), 276 pulls from 2250rpm peaking around 6k. 266 pulls from 1750rpm peaking around 5.5k ACD - RS pulls from 1250rpm factory smooth idle peaking 5.5 to 5.75krpm.

Ac

[Fordy]

Thanks AC, exactly the sort of figures I was looking for. Shall be thinking over the next few days on which to go for.

How much do you charge for your cams by the way?

[MRA]

Kent 276 figures

 

http://www.kentcams....t-Road---Rally/