HOW TO: TOP MOUNT TURBO SET UP!!

[spnkr21]

Once you up the boost it won't creep .

[dougefresh_]

Originally Posted by spnkr21 Once you up the boost it won't creep .

Well, I plan on running the ebcs to bring boost on sooner... I hit 16psi at like 3,500 (depends when I dip in), and then slowly creep to 21. I want to run looow ass wgdc, and have them descending (following the creep), so I hit and hold 21psi. I may tune the ebcs to 23 psi, or I may use an MBC to bump it up a bit. IDK yet. I should really put in a softer spring, but I really don't feel like fucking with that ewg again. Plus, I gotta hit the books asap.

[Dano]

MBC on my setup = instaboost so that will drop your spool time dramatically. It also caused BPV flutter anytime you do a partial throttle lift...didn't like it.

if you are going to safely run 23 PSI [have the limit tables work] you need the MAP upgrade if you don't already have it.

[rfinkle2]

Originally Posted by Dano2010 MBC on my setup = instaboost so that will drop your spool time dramatically. It also caused BPV flutter anytime you do a partial throttle lift...didn't like it. if you are going to safely run 23 PSI [have the limit tables work] you need the MAP upgrade if you don't already have it.

Or @Lex needs to bring his overboost valve to market...

[djuosnteisn]

Originally Posted by dougefresh_ Tial 44mm should fix the creep. You can also get that mani w/ dual ewg's as well .

I have a twin gated top mount mani in my garage, and i'm not sure the second wastegate will clear the alternator, so there may be some issues with the twin gate.

One of these days when i get time, i'll bolt it up to my spare block and do some more formal test fitments, and if there is a clearance issue, i'll figure out how to rework em.

We'll cross that bridge when we get there.


Doug, i probably missed it, but how high does your boost "creep" to?

Rigor brought up an interesting concern with the coolant. He suggested that since the turbo is the new "high point" in the coolant system, a manual purge may be necessary.

I don't have a good sense on coolant setups, but if anyone cares to chime in on it, feel free. I would think the water pump would simply push any air bubbles out, but possibly not.