18-06-2012, 11:24 AM
I reckon if your pistons are gonna be 4-6 weeks then youve got plenty of time to get things right so keep hunting for a 10mm head and in 4-6 weeks Dan! might be well enough to help you with injectors.
As for the turbo the bottom end isn't gonna want to be quite so happy revving now its got the longer throw so you need to consider that Im you might have you reign where you rev to in a little so actually having the quicker spool on the smaller could help you keep the same rev range.
Maybe go 1mm bigger on the comp as with the ceramic coated exhaust bits your gonna have hotter exhaust gas so a faster spool (as long as you dont melt anything).
Personally I reckon your gonna be aiming for much more boost so it might be worth you looking into a twin scroll exhaust housing and a quick spool valve (basically a valve that is shut at low boost so you only use one scroll of the twin scroll housing to get a fast spool) they cost big £££ for what they are but it reckon you could make one for sub £50.
Im seriously considering a twin scroll housing for my car.
As for the turbo the bottom end isn't gonna want to be quite so happy revving now its got the longer throw so you need to consider that Im you might have you reign where you rev to in a little so actually having the quicker spool on the smaller could help you keep the same rev range.
Maybe go 1mm bigger on the comp as with the ceramic coated exhaust bits your gonna have hotter exhaust gas so a faster spool (as long as you dont melt anything).
Personally I reckon your gonna be aiming for much more boost so it might be worth you looking into a twin scroll exhaust housing and a quick spool valve (basically a valve that is shut at low boost so you only use one scroll of the twin scroll housing to get a fast spool) they cost big £££ for what they are but it reckon you could make one for sub £50.
Im seriously considering a twin scroll housing for my car.