Exaust and backpressure

[GoLfMan]

With my 1976 3 door golf which i am doing up to race, i was thinking of a 2 1/4inch stainless steel engine to outlet system. does anyone know what the 'right' kind of exaust and back pressure is needed for best performance

[Golf Loon]

That sounds quite large. What size engine is it? If you dont have enough backpressure, you`ll lose heaps of go. I`m thinking 2.5inch for my 2L 16v
That size with a 1.6 would be no good though.

[Anonymous]

yeh sorry i forgot to say... its a 1600 carby.... yeh i think ill just leave the stock piping in there and put on a new muffler... do you think that will work at all?

[GoLfMan]

yeh sorry i forgot to say... its a 1600 carby.... yeh i think ill just leave the stock piping in there and put on a new muffler... do you think that will work at all?

that again is my post i keep forgettting to log in

[Golf Loon]

Has it got extractors? They make the 1600s howl, especially if you drill out the main jet in the carby, or replace it with an auto one.

[GoLfMan]

no i havent got extractors atm... stock as a block . but i have a carby that i got off my renault 15 (which is going to wreckers tommorow cos it has so much rust) and the carby is a double barrel (both barrels 41mm ) webber. but the manifold bolt pattern doesnt match up. will i be able to fit this carbi on?
i was wanting extractors

[Golf Loon]

If you can cut and weld up a golf inlet manifold, you might be able to make it fit. i think its alloy though, hard to weld.
I`ve got some brand new extractors, which dont fit my 16v. 200bucks never been on a car.

[GoLfMan]

well ill take my car to Volkspower to see what they can do, and to see if the carbi is worth putting on. im a Melbourne man. extractors you say? would they fit a mk1?

[Golf Loon]

The extractors are made for a Mk1. I paid 300 for them, but have now got a 16v, so dont fit my car. Bargain $200 postage $40approx

[GoLfMan]

Ill think about it .... thanks