1600 240 bhp and no charging!

[andy97]

zxc23 said:

The UK 1600 mk1 race cars are getting 145hp (flywheel) with just a standard skimed head, recut valve seats, 0.5 stock pistons, advanced ignition timing and some tuning of the air mass.

So with big cams and throttle bodies 180-200 would be feasible.

Are they? Really? With standard induction, valve sizes, exhaust manifold, fuel system and cams, and no porting or polishing allowed?

[youngsyr]

andy97 said:

zxc23 said:

The UK 1600 mk1 race cars are getting 145hp (flywheel) with just a standard skimed head, recut valve seats, 0.5 stock pistons, advanced ignition timing and some tuning of the air mass.

So with big cams and throttle bodies 180-200 would be feasible.

Are they? Really? With standard induction, valve sizes, exhaust manifold, fuel system and cams, and no porting or polishing allowed?

I also doubt you could hit anywhere near 200 bhp with just bigger cams and throttle bodies, unless you were tuning entirely for the top end peak power figure and making an engine that produced little torque below 5,000 rpm and only hit peak power at 8,000+ rpm

[VladD]

Changing tack slightly, Caterham could get 230 bhp out of a 1.8 Rover K-Series. I'm assuming that would be possible therefore out of the Mazda 1.8, but how much would it cost? I'm thinking that would be a high maintenance engine though.

BOFI have options for engine building on their web-site, but I'm not knowledgeable enough to understand all of the options an iterations, and it certainly doesn't look cheap.