45 replies to this topic

[Daze]

Hi guys,

I'm trying to decide on what bits to buy for my engine build. Let me give you a quick run down so far...

Its a 1275 Mg metro block & head, the head has been modified slightly - standard size valves, but gas-flowed, etc. Its having a SCCR gearbox on the bottom and SC drop gears too, as well as an AP racing clutch kit. Finally, it's also going to have a 45 DCOE on the back. That spec is what I've decided on, for sure, so far...

However, I am really tempted to change the cam for something hotter. A Kent 286 springs to mind, I've driven a couple of Mini's with this cam and its awesome. I love the lumpy idle too!

But, would that cam be too hot for my standard-ish Mg metro head? Would it be going to waste and actually losing torque & bhp?

I don't care about fuel consumption, noise, or the fact it'll be difficult to drive in traffic. Infact, that's a good thing - a challenge! However, I don't want to spend out too much more money on other things (eg, better head, overbore, etc)

Thanks in advance.

[Guess-Works.com]

You'll be fine with a 286... and with the webber very nice indeed...

[Udo]

Seconded

[Jordie]

my 286 sounds lovely, need to bleed the clutch before i can drive it.

[E.L.M.O]

what sort of power do you think dazes engine will produce?

i have all those parts spread out in a couple of engines and in spares, i might build one to similar spec

[Daze]

Good stuff! Thanks guys!

Yep, I'll also be interested in BHP/torque figures. Anyone fancy giving a rough guess?

[E.L.M.O]

would 90bhp be a feasible figure?

[Guess-Works.com]

With the right setup on the carb ( which will be the key ) yes, 90 at the fly should be well within range... you're realy only talking about a 25% increase on power over a std mg metro.

[E.L.M.O]

25% isnt bad though. 90bhp will be nippy

[icklemini]

hmmm
i'd prefer the sw10 and a decent SU on a road car. not a big fan of webbers on a roadie either....

sw10 is far more up to date design - like the 286 but better.., less lift at overlap gives a smoother idle, better economy (if used with a SU), and delivers the torque.

really: high hp figures are nothing if the torque curve is pants...

imho,
Dave

[E.L.M.O]

hmmm u got a point. but the other way is alot cheaper?

[icklemini]

hmmm u got a point. but the other way is alot cheaper?

other way?

[E.L.M.O]

really? i thught the su etc wuld be pricey? this not the carse?

[icklemini]

really? i thught the su etc wuld be pricey? this not the carse?

nar a single hif44 would work - twin 1 1/2 will be pricey but would be marginally better.. SUs have a lot of tuning potential, and sadly not often utilised.

webers are ok, but not variable choke so its more of a 'compromise' setup...

ttfn,
Dave

[E.L.M.O]

ok. well i got a 1275 mg engine. how best can i get 90bhp out of it and how much would it cost?

sorry for hi jacking this thread :S