pani_k

iTrader: (1)

Hi people,

Just wondering here, got me some Stage 2 Comp cams to go in my focus and was wondering whether I can get them fitted and run them on standard timing and bluefin map or whether I should do a remap and adjust them with verniers at the same time? Would it run decent enough on just the cams fitted and the bluefin on stock timing? It's just that I don't think I'll be able to put the money together to have it all done in one go and was thinking should I just get them in there first and worry about remap and adjust later?

Thanks!

pdfbt40

How deep is your wallet, and how much time do you spend in the pub......

Why do you think a remap will give you a cost effective, significant, change in performance, especially given your previously stated aims for mid-range cruising as a priority. If you haven't any significant induction system or head work I really can't see the point.

I've a focus engine that ran 180bhp/154lbf.ft on Bluefin 'generic' remap, and is still running well 2 years later.

Martin

pa_sjo

Waste of time running cams like this unless the head and inlet tract can flow the air!

pani_k

iTrader: (1)

Why shouldn't it? Plenty of people run zetec turbo'd lumps without headwork?

pa_sjo

Because having a big turbo forcing air in and the engine sucking it in at atmospheric pressures are two completely different things.

pdfbt40

Most of the time, on the road, a turbo engine is sucking.......

Stage 2 cams aren't exactly radical, and the Focus Blacktop head flows quite well without being touched ^^^^. (Sorry inside knowledge of what pani_k drives as he never bothers to say). The 'plastic' manifold is mildly restrictive, more from inlet tract length than anything else, as a road engine. The '98 one is what I use with mild clean-up. At least Europe never got the American 'late' one!

The only other comment I'd make, is also on the suck/blow issue of turbo engines, when on load. N/A cams usually make use of the momentum of the gases flowing to increase the gas flow by overlapping the exhaust and inlet opening. This doesn't work very well with a pressure on the inlet passages. If your lucky you just blow unburnt mixture down the exhaust....

Anyway, what are your views on the topic, pa_sjo, is a remap necessary when fitting Stage 2 cams to a Blacktop Zetec?

Martin

pa_sjo

Who knows. Stick a wideband on it and go for a drive. If the fuelling is wildly out, then remap it!