Syvecs Forums

MReilly, I think I had wrongly assumed that the closed loop element of this strategy only targeted capsule pressure but I'm not experienced enough with Syvecs to easily interrogate how the normal closed loop turbo speed or MAP & PRP strategies tie in to capsule pressure in the provided example. ...

Yeah, totally get what you're saying but it's a hard one to get your head around as with both NO ports blocked, the only way it can vent is through the empty solenoid and obviously a solenoid cannot regulate pressure without flow.

Yeah, understand you wouldn't use phase antiphase with CO2. I'd never use CO2 anyway, I'd use a compressor and/or accumulator. As I understand the fill empty valves still have to have a linear phase and antiphase? For me, if I was using it with normal boosted air, normal "Phase" would be t...

Did you run the MAC valve at the same frequency?
Cheers.

How it helps is the antiphase with increasing MAP can have a run away boost effect for the same level of duty so the control is not as accurate, especially on cars where TIP or more correctly MAP/TIP is not increasing in linear fashion with RPM after MAP peaks (stays flat for example). So the idea ...

Hi, when operating a Pierburg at the recommended 35Hz what's the max/min usable duty (i.e. what's the dead zone top and bottom)?
Thanks.

Hi Stevie, it's not only drag racing, rallying too. It could be useful anywhere you need a big range of boost pressures, very accurate control and to overcome high EMAP. Only targeting dome pressure to me is a waste of time, it's essentially a glorified open loop strategy at that point. If the base ...

Ryan, is this just closed loop control of a capsule pressure target or does the PI control of capsule pressure work in addition to the primary (or primary and secondary in the case of dual MAP & PRP) closed loop boost control targeting MAP, turbo speed or PRP? I have a rough idea how it works on...

On an S6GP fitted to a Subaru, I can't see any maps/tables for automatic intercooler water spray. Should I control this using the water injection options (if so, what if you have both)? There is an auto switch in the car, I guess this needs wiring as an input and the pump as the output but what inpu...

If you're using a 'snapshot' type feature on the dyno to correlate engine speed with roller speed (i.e. hold the engine at say 4000rpm in your chosen gear and press a button to tell the dyno software you're at 4000rpm) rather than use and inductive clamp, injector signal, OBD or whatever to feed an ...