mschraider Posted September 30, 2021 Share Posted September 30, 2021 Hey Folks, I'm curious, and wondered whether anyone has any experience; is there a way of doing an RBTB conversion to a Duratec, but without cutting the bonnet ? Looking at various cars with RBTBs, it doesn't seem like it needs a lot of additional clearance, and I'm wondering whether there a set of shorter trumpets that would fit without taking a hacksaw to my paint :)TIA Link to comment Share on other sites More sharing options...
John Vine Posted September 30, 2021 Share Posted September 30, 2021 With standard RBs on an S3, I'd say no. It's not so much the trumpets (which just fit within the bonnet line) as the backplate plus filter:A smaller filter would be a no-no as there needs to be a minimum gap between the outer face and the trumpets.JV Link to comment Share on other sites More sharing options...
John Vine Posted September 30, 2021 Share Posted September 30, 2021 I should add that getting the intake out from under the bonnet and into the colder airstream is a distinct improvement performance-wise.JV Link to comment Share on other sites More sharing options...
Viblue7 Posted September 30, 2021 Share Posted September 30, 2021 #3 JV. Is using an air box assembly S3 cars CC part number 30E179C the easiest way to do it? Plus hose etc and hole in bonnet. Link to comment Share on other sites More sharing options...
John Vine Posted September 30, 2021 Share Posted September 30, 2021 Re #4:Interesting thought, but I couldn't say, I'm afraid, as I know nothing about that airbox. In fact, I'm struggling to see what's wrong with the usual bonnet hole (other than the labour involved in cutting it).JV Link to comment Share on other sites More sharing options...
mschraider Posted September 30, 2021 Author Share Posted September 30, 2021 Thanks JV, appreciate your thoughts and photos - very helpful. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now