New here, 1970 142S exhaust question
 

Hello,
just found the forum and had a question. I apologize if this is posted in the wrong forum, and ask moderators to please move accordingly. I have a 1970 142S with a freshly rebuilt B20, D-cam, M40 gearbox, and a Weber 32/36 DGV carb. I would like to buy the 2,5 sport system from Skandix and have a local shop fit it up. I plan on adding a competition cylinder head, 4-1 exhaust header, 38/38 weber, etc. at a later date as finances permit. Has anyone have/had experience with the skandix sport system? Right now I am running the full-length stock exhaust with a straight pipe in place of the rear silencer:thumbs_up: It sounds good, a bit raspy at some rpms, but how does the skandix system sound? thanks in advance.
Mike

Hi Mike for the spec of you engine the 2.5" exhaust would be to big and cause a drop in low end power. For what you have I would go with a 2" opening out to 2.5" for the back box or 2 1/4 straight through system. The 4 branch is a good idea - not much power gain but it does stop the exhaust popping on over run. Never used the scandix stuff so no idea on quality.

I had the Simons system on my 140, I think that was 2" and followed the line of the original crossing across the back axle. Sounded better than the original marginally and went fine.

I've now got a 2.25" bespoke stainless system made up going dead straight with two boxes. Feels much more perky but that could just be the noise. Thats on a well modded engine with SU's.

Thanks for the reply, I thought the 2.5" would be too large with my current setup, but I plan on doing other modifications in about a year so is the 2" going to be too small once I add more carburation, better cylinder head, 4-1 exhaust header, etc.? Skandix offers two systems in the USA, so I'm torn between the two. I

Unfortunately, classic Volvos are not too common here in the States, so there's only a couple of choices as far as aftermarket exhaust systems. I could buy two mufflers and have a shop fit it all together, but the simons system has mandrel bent tubing which maintains inner diameter throughout the whole system. I'd love to go stainless, but that may be a little out of my budget. Thanks!

Ah!! Norfolk VIRGINIA not the East coast of England! Sorry Mike. Getting mine made from scratch from the manifold back cost just over £300UKP including fitting from a specialist exhaust shop together with skid guards. As it has a lifetime warranty, didn't seem bad value.