Post by
darinz »
https://forums.nicoclub.com/darinz-u47224.html
Mon Dec 01, 2008 1:34 pm
The funny thing is if I did it again I'd go with twins instead of the single. I'd go with 2 internal w/g turbo's and get rid of the external w/g and associated plumbing. Mine is a little different due to the mud etc it has to deal with but external wastegates create almost the same headaces as a second turbo.With a twin turbo I'd have basically the same exhuast as the external waste gate I have has a 2" pipe from it and is plumbed back so twin 3" with no external waste gate would fit just as easy. Plumbing the waste gate into the exhuast before the muffler actually helped boost control as the 50mm w/g was borderline to control boost untill plumbed in. Where it joins is 3" just before muffler and then exits to 4" so provides a bit of back pressure on the turbo at high flow but sweet for quick spool.
My plans for the next evolution have the turbo's in the same place as above but with an laminova tyoe I/C in the inlet manifold. Simpler intake as effectively no I/C, 2 smaller turbo's as the T04z I have isn't really needed as I'm not going to try for more than 600hp anyway.
So I might just sell the complete turbo, wastegate, I/C stup I have and start again, soon! I am a mortgage broker after all so money isn't exactly flowing at present!!!!!!!