View single post by James Wilson
 Posted: 03-05-2007 10:53 am
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James Wilson



Joined: 11-01-2006
Location: Glasgow, Scotland, United Kingdom
Posts: 34
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I'm considering getting a tubular exhaust manifold:



But I'm wondering whether the improvement is worthwhile. How much benefit is this likely going to be over the stock manifold. I'm rebuilding the engine to a high compression (10.9:1) specification with a 2.2 crank and 104/107 cams for a street car...

Other modifications will be a Lotus/Toyota 5 speed and uprated suspension (bushes, springs, shocks).

I'm inclined to pass on this... suspecting that the difference between it and the stock set up (which looks pretty good by comparison to most cars' cast iron manifolds) won't be significant for the street... 

But any comments?