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The 1.3 Turbo Battle####

Bad found myself back in bed. Need to get the daily put back together. I will attack it when the coffe has been drunketh


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Right so Tuesday I am going up to fusion motor sports to get the ecu in and injectors + maf in. Woop. Base map too. Then hopefully Wednesday is mapping rolling road if we lucky if not hours day? Cutting close. Cutting close
 
Fingers crossed mate I'm going abroad tomorrow night but ill try and stay upto date if I can nab some wifi ;)


LEEEEEAVVVEEE ITTTTT YEAHH!!!
 
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ghetto pedal limit

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Frank you reckon I could have caused det knocking with that much boost at 10btdc?

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thats the telltale breather mate, every time i detted pistons that would spray oilmist out (like a spraygun at full chat when i detted all 4 pistons :D)
 
Okay well why was she lumpy this morning.... 5w-50 oil... It was very cold this morning.

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have you checked your tubby oilflow yet chris ? here,s mine flowing 1 litre/12 minutes @ idle



i have been running the banjo bolt with the big hole till now (on the right) which flowed 1 litre/2.5 minutes.
the one on the left is the 12 minute one, and with some trial and error (using self tappers with a flat ground onto one side) settled for a 5 minute/L flowrate :)

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frank said:
have you checked your tubby oilflow yet chris ? here,s mine flowing 1 litre/12 minutes @ idle



i have been running the banjo bolt with the big hole till now (on the right) which flowed 1 litre/2.5 minutes.
the one on the left is the 12 minute one, and with some trial and error (using self tappers with a flat ground onto one side) settled for a 5 minute/L flowrate :)

View attachment 25366

View attachment 25367
Click to expand...

SirChris said:
yqyhahe7.jpg
@enuo

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Click to expand...
Enuo said:
Forgot to explain this.
Ok, so the first load of results are to calculate the flow rate of oil out of the turbo return feed over the whole rev range. We calculated the time to collect 0.25ml of oil and then calculated flow rate from that. The first set of results were for a 1mm restrictor. We found that the oil pressure is as Noddy said not linear, however I'm guessing there is an oil relief valve near the pump to prevent hydrolocking that might explain that...
Anyway, a 1mm restrictor gave roughly 0.625l/m at 6k rpm, about half what we wanted. I didn't want to go higher though, as there was evidence of cavitation at those revs, possibly because the oil was in the top of the engine/in our collector and not at the oil pickup?
We decided to open the oil restricter up to 1.5mm, measured again at 6k rpm only this time, as 1.5mm has roughly double the cross sectional area as 1mm. We got a calculated flow rate of 0.83l/m this time. Hmm...
Tried once more with a 2mm restrictor at 6k rpm, calculated bang on 1.0l/m flow rate, and cavitation seemed less, so we think air was mixing with the oil as it sloshed down the oil return pipe... case for a swirl pot?
We were happy with 1l/m, as there was no smoke out of the exhaust and it seemed close enough, openening up the restrictor seemed to be giving diminishing returns... and would have just been one step closer to turbo flooding again.
Click to expand...
 
Right I checked compression... I got 230 240 odd across all the pistons... I may be talking out my bum I can't remeber either way I did it and I thought my god that's high.

@frank

Sorry for the late reply. Yes we hit around 1lpmin odd. I reckon once its flowi g round we would be near that 1.2l figure when the oil is continually drained back in to the sump. Keeping the levels correct at all times.

Me and any had a science hour on the drive. Those were his results previously.

Either way we look at it.. She was getting to much oil. So this should do it.

Update all. About to put inside plastic arches on. Tomorrow we get nistune in and basemap with 370 injectors and maf wired in. Also front wheel alignment ready for dyno wed-thurs. ed is sorting that date today. So trip up probs early Thursday or after noon not sure yet.

ImageUploadedByTapatalk HD1378736252.099717.jpg
the results from the injector test
 

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