MS-I v2.2 w/ MSnS-E Daughter board running fuel/spark. 3" straight-through, intake, removed emissions, ported wastegate (s4 t2), Blitz Dual SBC (not turned on until I officially tune the car).

The twinscroll system is constatnly powered/de-powered by the stock ecu to enable faster spool, but with the stock ECU removed, the valve is rendered useles. I have been driving the car around gingerly for the past couple weeks as it isnt completely tuned yet, but it does run fine.. just rich. I noticed the boost starts to climb at around 4500 - 5000 rpm, which is abit steep and unnecessary if faster spooling can be created.

I have the Twin-scroll system setup as per the emissions removal/twinscroll diagrams, etc. (ty NZConvertable) But without power.. the valve does nothing.

I came up with an idea and thought if anyone might have thought of it, used it or has any input. The idea is to use the NOS control feature on the daughter board, setting the turn nos on rpm to ~1000 (car idles between 1200-1700) having no enrichment settings, then having the max nos setting at 2700 rpm (so-called stock shutoff) causing the actuator to be closed until rpm hits 2700 or whatever setting I so desire..

I was also wondering which pin to use from the daughter board
P4 - Relays and Solenoids
Pin 9: to nitrous relay contact
Pin 10: to nitrous solenoid

Im also assuming that MS grounds the signals from P9 / P10 so the Actuator solenoid should be powered from a 12v source.

Any input / critisism is greatly appreciated.

 

4-5k boost problem fixed. Wastegate actuator arm fell off... easy fix except the ~7psi of creep from 5k-7.5k. Still no imput for the wastegate actuator though..

 

I'm just sharing my point of view and my experaince, I took my S4 turbo exhaust manifold with the scroll gate and actuator and removed everything like the S5 turbo manifold. And just had the two holes welded on the manifold. This takes care of the problem mechanicly and dont need to figure in how MS is going to handle it.

I'm a bit tired and just read what I have wrote and I think After reading it a few times you can get what I'm trying to say.

Any question let me know...

 

With the scroll gate arm off the gate it self can open and shut at will.

 

Yes, I do realise that with the twinscroll system not hooked up, the spring pushes the gate out anyways. And I also do realise that I can remove the flapper and plug the hole to remove the system completely. I'm just trying to see if I can get the stock system working and get full boost a hell of alot faster then with the system dissabled.

In theory, it should work if I can figure out which of the 2 NOS pins to use, and if they do infact ground the system. Also, the minimum for max nos rpm is 3000.