external wastegate control

This section is dedicated to discussion of DTA engine control units such as the DTA E48 EXP, P8 Pro, DTA S40, S60, S80, and S100, as well as all things ECU related.
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pule333
Posts: 22
Joined: Sun Jul 15, 2018 1:28 pm
ECU Model: S60 Pro
Distributor: EFI Parts

external wastegate control

Post by pule333 »

Hi everyone.
i have S60pro on my clio. planing to go bigger turbo now.
wondering if S60 can control wastegate directly and all i need is Turbo Wastegate control valve?
also, what size would people recommend for 2000cc engine with around 350bhp?
44mm?

ps. thumbs up to DTA for their ECU and NT-Dash
works really well :)


thank you!
Alex DTA
Posts: 1622
Joined: Fri Feb 28, 2014 1:03 pm
ECU Model: S40 Pro
Distributor: DTA
Firmware Version: 79

Re: external wastegate control

Post by Alex DTA »

Yes, the ECU can control them directly. We recommend and sell the MAC valves, but Chris can also supply them.

You won't need 44mm for that power level, 38mm will be plenty.
Vitesse
Posts: 25
Joined: Wed Apr 22, 2015 9:26 am
ECU Model: S60 Pro

Re: external wastegate control

Post by Vitesse »

What power level is normally the change over point to 44mm?
katana
Posts: 455
Joined: Sun Jan 27, 2013 6:08 pm
ECU Model: S60 Pro
Firmware Version: 29

Re: external wastegate control

Post by katana »

Maybe 500+ - i'm still internally gated @370hp!
Alex DTA
Posts: 1622
Joined: Fri Feb 28, 2014 1:03 pm
ECU Model: S40 Pro
Distributor: DTA
Firmware Version: 79

Re: external wastegate control

Post by Alex DTA »

I ran internally gated on my last car, at around 350bhp as well. That was a 2.0L turbo.

A lot of boost creep blamed on waste gates is actually due to the boost control valve.
The VW ones we used were good up to about 400, but couldn't cope above that, so we now sell the MAC valves.
To be fair we never played around with frequencies to see if we could make them work better, but as the MAC valves are so good and significantly cheaper, it made sense to swap anyway
Vitesse
Posts: 25
Joined: Wed Apr 22, 2015 9:26 am
ECU Model: S60 Pro

Re: external wastegate control

Post by Vitesse »

Sounds logical, my turbo is internal wastegate and rated about 500hp max although I am only at around 310hp but planning an external wastegate manifold for the next engine. I just fitted a MAC valve too so good to know it is most preferred.
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