13-01-2017, 11:01 AM
I'd be really interested to see realistically what difference a manifold would make on these... From my experience:
A. We're talking low levels of power here - ~250hp tops.
B. Low engine speed - the effects of pulse tuning are negligible anyway as pulses are so spread apart, the primary length has to be so long it's barely worth bothering with.
C. It's an HDi - soon as you've a bigger turbo on, you're invariably limited by fuel supply in a decent window rather than more air in the engine.
D. The money spent £/hp or £/cfm improvement in gas flow through the engine will be so low from a log manifold to a perfectly tuned length beautiful manifold that it's just not worth it. That money is far, far better spent on getting some big injectors in, or a bigger CR pump.
E. If Piggy finds find that there's serious issues with getting gas in/out the engine, it can be changed - that can go down on paper as something discovered... Why is getting things wrong and learning a huge issue?! It's just because it's not what you're "supposed" to do when making a manifold - it does look agricultural at best, but meh?! It's also a diesel Peugeot 306...
F. It's more than most of the rest of the forum have actually done - most of the above is keyboard warrior youtube comments.
G. Who cares anyway.
Of course Piggy could just have not posted it online, nobody would be any the wiser and there'd be beers all around... This forum does make me laugh.
A. We're talking low levels of power here - ~250hp tops.
B. Low engine speed - the effects of pulse tuning are negligible anyway as pulses are so spread apart, the primary length has to be so long it's barely worth bothering with.
C. It's an HDi - soon as you've a bigger turbo on, you're invariably limited by fuel supply in a decent window rather than more air in the engine.
D. The money spent £/hp or £/cfm improvement in gas flow through the engine will be so low from a log manifold to a perfectly tuned length beautiful manifold that it's just not worth it. That money is far, far better spent on getting some big injectors in, or a bigger CR pump.
E. If Piggy finds find that there's serious issues with getting gas in/out the engine, it can be changed - that can go down on paper as something discovered... Why is getting things wrong and learning a huge issue?! It's just because it's not what you're "supposed" to do when making a manifold - it does look agricultural at best, but meh?! It's also a diesel Peugeot 306...
F. It's more than most of the rest of the forum have actually done - most of the above is keyboard warrior youtube comments.
G. Who cares anyway.
Of course Piggy could just have not posted it online, nobody would be any the wiser and there'd be beers all around... This forum does make me laugh.
