michael Posted March 16, 2004 Share Posted March 16, 2004 My turbos are being replaced at the end of next week, nothing exotic, just late spec standard UK ones (although they might not be 100% normal). Is there any benefit to be gained from me porting my turbo manifold like this? Is there an art to it or can I just dremel away? Quote Link to comment Share on other sites More sharing options...
Terminator Posted March 16, 2004 Share Posted March 16, 2004 Love the chair:p Quote Link to comment Share on other sites More sharing options...
Adam W Posted March 16, 2004 Share Posted March 16, 2004 You may need something a bit beefier than a dremel. I was out doing a bit of tidying up on my cast HKS manifold tonight and the cast iron was wearing down my grinding stones (big ones in a drill) faster than the stones were wearing down the manifold Quote Link to comment Share on other sites More sharing options...
Barry Posted March 16, 2004 Share Posted March 16, 2004 Adam, A drill doesnt spin fast enough to do grinding, no wander your wearing down your stones. You need a die grinder to get them spinning at 20k rpm+ Quote Link to comment Share on other sites More sharing options...
Adam W Posted March 17, 2004 Share Posted March 17, 2004 Yeah, I know its not ideal but I didn't have a die grinder, the stones were only £3 for a pack of 5 , and I've finished now Quote Link to comment Share on other sites More sharing options...
eyefi Posted March 17, 2004 Share Posted March 17, 2004 just b careful in the thinner areas Quote Link to comment Share on other sites More sharing options...
Terminator Posted March 17, 2004 Share Posted March 17, 2004 From my discussions with a retired tuner, who did mainly head work and manifold matching work for competition engines from across the globe, there is a real art to this and should not be undertaken lightly. If you are just doing light smoothing/ polishing the you should not have a problem, if you have the right tools. If you are trying to make significant increases to flow you have to be extremely careful, if you create a thin spot you could cause a failure in the manifold. JMHO Quote Link to comment Share on other sites More sharing options...
michael Posted March 17, 2004 Author Share Posted March 17, 2004 I was really just wondering if it was worth doing while the manifold was off - I lack the tools and skills to do it and I suspect the mechanic doing the work won't have the time to do it for me but thought it might be a nice idea Maybe we can do a bit of light polishing or something as a compromise. Quote Link to comment Share on other sites More sharing options...
Terminator Posted March 17, 2004 Share Posted March 17, 2004 The guy in question, did work on some of my cars, not the MKIV. His workshop was more like an art gallery. The precession of his work was incredible. I use to get him to balance the cylinders to get equal compression by equalising the volumes. If you can smooth the surface while the pipes are off it won’t do any harm , but it is not worth pulling the car apart for, the gains will be minimal. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.