Looking at a new exhaust for my viento with vauxhall c20xe red top and just wondered what setup would be best.
I understand a 4-2-1 gives better mid range performance and a 4-1 gives better top end.
My car is used on the road but next year i am going to get into trackdays
What are your views?
4-1 nothing looks better than the old gatling gun sticking out the side of a car!
redtops prefer 4-2-1 i'm told. i forget who told me... think it was on sbd's website?
Since your car is mainly a road/trackday car I'd go for mid-range punch every time.
If it were a hillclimber/sprinter or circuit racer it would be a harder choice.
4-2-1 gives the best all round performance, thats why most bike aftermarket systems have it.
I'm with iank on this.
Since the car is mostly used for road and track days I'd use a 4-2-1 (In fact that's what I'm gonna do on my ecotec when the build gets
that far)
If it was an out and out track/hill climb car only then would I go 4-1
4-2-1 is what my ecotec already is, and the manifold is a old racing part from a red top
4-2-1 fpr mid range power
4-1 for top end power
Is there a basic rule at what length the exhaust pipes should join or is it just plug and pray ?
4-2-1 whats the point of trying to push the cars top end, its common knowledge that the 120 - 130 mph is all you get. go for getting there faster
quote:
Originally posted by austin man
4-2-1 whats the point of trying to push the cars top end, its common knowledge that the 120 - 130 mph is all you get. go for getting there faster
not only that but if he isn't building a '7' style car it will go faster.