5 replies to this topic

[A.Bateman]

The child in the family needs a new engine unfortunately, I was going down the 1275 route but been offered a low milage running 998 for a very very good price. So with that in mind I already know to put a different cam in but I don't know which one. I also have a 1275 head that I shall put on but what else can I do to up the power?

Thanks

[Turbo Phil]

A decent (Minispares) stage one kit is the first thing to fit. If it's a fairly budget road motor don't go wild on the cam, you're not looking for peak figures you want a decent spread of power. AC Dodd on here does a good range of cams, otherwise the 997 Cooper cam responds really well in the smallbore.
A properly ported 998 head with bigger valves will give more "punch" low down than the 1275 head, due to better port sizing.

Phil.

[A.Bateman]

Good to know, so I'd be better off with the 998 head but size valves are we talking? Also what about different carbs? I already have a stage 2 manifold and slight pipe for the car. Anything to consider for a better intake

[Turbo Phil]

You may see better peak figures with the 1275 head, but you'll lose out on torque low down. This is where a 998 head with a better port size will deliver, so better suited to a nippy road car.
I'm presuming it's for road use and not a race car ? Otherwise that changes everything ..
What's your budget to ?

Phil.

[A.Bateman]

Yeah it's a road car, I haven't really got a budget to be honest. It's an on going project. I don't mind spending a fair bit on the engine because I've already got a standard 998 on the road at the moment so after something more special. I'd be happy around the £500 mark but don't mind putting more in if it's worth the money

[gazza82]

A 1275 head may also need to have pockets cut into the block as the valves overlap the edges of the bores ..