Power differences. Crazy high outputs around here.

[Sql_RS4]

Lately I've been thinking - how on earth do you guys achieve so high outputs with so little mods?

I keep on reading how remap and catback with gutted precats gives you 440-450 hp. But how?

Here in Poland I know a couple of B5s that have been checked at dyno and OEM output is usually at around 330-360 hp.

My car with a remap showed 398 hp, when it should be at around 420 at so called Stg 1.

It is still really fast and I can race e92 M3s and B7 RS4s and win.

One company in Poland is working on a project than consists of FMIC, K04 Hybrids, custom 2.5" exhaust, custom 3" downpipe, K&N Intake, custom remap and it all gave just a bit above 435 hp, please see pics of the car and dyno slip below:







So why so much difference? Is it something with different dyno setup? I just don't get it. Above car measured on your dynos would probably show 470-480 hp....

Please let me know what you think...

[easto]

Is it because the figures your talking about are at the wheels?
From reading on here over past year I think the '460' hp ones make about 390-400 on the dyno, allowing for the losses. Someone with MUCH more knowledge and experience in RR's may correct...
435 seems really low for that spec unless at the wheels...

[Blue_Thunder]

Perhaps the fuel in Poland is a lower grade than the stuff we get here in the UK.

[jimbo1234567]

a lot depends on the mapping. what boost and timing is that car running and like scott above said what quality is the fuel over there