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T. Turbo is back



Matt Cup

ClioSport Club Member
  Leon Cupra, 172 Cup
What’s with the twin wastegates? I know nothing about them but is one not enough?
 

Brigsy

ClioSport Club Member
  T.Turbo
What’s with the twin wastegates? I know nothing about them but is one not enough?
Twin scroll turbo so one wastegate for each scroll on the turbo, with 2x exhaust ports feeding each side. In theory one large gate would work but thats how Nortech set it up.

It does spool quite fast for a low comp engine and large turbo, so overall it works decent. All in around 3800rpm from memory. Boost control is rock solid hits whatever level its set at, and holds it right to the 7800rpm rev limiter.
 

Brigsy

ClioSport Club Member
  T.Turbo
Quick wash before work this morning. It wasnt really mucky being honest, but any excuse to use my new di resin water filter :ROFLMAO:

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In other news, it has a date booked in very soon to see a man about some more horses. Hopefully the power gods will anlign and we will see a good figure this time🤞
 

Brigsy

ClioSport Club Member
  T.Turbo
Done a bit on this yesterday.

Its in for mapping this week and nothing like a good short deadline to get projects moving. Made a start trying to get a couple of jobs done that ive put off for ages. These are non essential/nice to have so doesnt really matter if completed or not but be nice.

Wheel speed. I need vss to work on driven wheels for boost by gear. Dont want to tap into abs, actually not sure if it works but no light on dash so whatever, leave it be..

Brainstorming last week on how to fit a hall sensor to read off abs ring and dug a spare hub out to mock up. There is 3 random holes on the 182 hubs for whatever reason, maybe they planned on fitting a s**t guard behind disc at one point. These look like holes full of rust but actually m6 threaded when you look closely. Chased the hole out with a tap, one l shaped bracket made and it looks like a goer.
20250914_093945.jpg

Cleaned up the setop and transferred to the car.
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Bit of wiring.
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Ran the car up on axle stands. Did it read? Did it f**k😅 messed about with pullup settings no joy.

After a bit of digging id ordered the wrong sensor, this is supposed to be 2wire hall (i think its reluctor anyway) and requires a magnet installed to read off. Prob could make it work if i moved sensor/installed magnets.

Ive ordered a 3 wire hall sensor that doesnt need magnet and will read off ferrous toothed ring to replace. Not holding my breath as feel like abs ring may have too many teeth but we will see. The legwork is done now so its simply swap out sensor and fit new one adding a 12v supply wire.

One bonus is i got a shorter sensor so more clearance on rcl kit as the current one is tight. I done a bit of sniffing round and the recommended sensors are the cherry red ones at £80+ from most places. It turns out its just a bog standard zf hall sensor that Rs components sell for £30ish. So not too bothered if it doesnt work.

Took it out for a quick run as not moved in weeks. All good nothing to report.
 

Brigsy

ClioSport Club Member
  T.Turbo
whats the plan for the mapping, time to go balls out and start pushing things or just a little tidy up?

Full send if fuel system allows mate, All in. Max out the turbo if all goes well. Tidy up a few bits as flywheel is lighter etc.

Ive advised Chris that we might need to do some fuel system diag as ive gone as far as i can with it really.
 


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