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Let's triple the HP - Rotten BRG Euro 1.6 rebirth in 42 months by noob

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Old 06-02-2021, 03:58 PM
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If I was you I would try to drive the car a little and see if the smoke clears up. It's possible the seals are shot but a lot of that smoke is probably residual oil in the exhaust. These turbos are loud they sound high pitched even out of boost so the sound might be normal. It won't sound like the 2560 which to me sounds a lot like a vacuum. The 2860 is really loud and whiney but once you get into higher boost it quiets down a lot.
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Old 06-03-2021, 10:46 AM
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Where do I start with this oil adventure...

In short form: I pulled the car, put the test pipe in and cleaned the exhaust.

I let the pictures do the talking:

Came out and found oil out the tailpipe.

That's in the tailpipe, see oil pooling right before the tip

DP oily

Back section oily

Thank you Mr. Kraken for making me a test pipe back in the day

So easy!

After a 10km drive

yummi

Oil in the tip after driving, you can even see the smoke coming out, car was turned off

I drove the car out of boost and it seemed to be fine the first few hundred meters, turbo was quite as before, stepped on it and a big cloud of smoke appeared behind me.
The turbo only manages to build up 4-5psi, that's it, after that it's just even more smoke. In the middle of the test drive, I took a look under the hood and the turbo was oily outside, heatshield oily, it's just stupid.

Can't be that much residue, it's dead

Yesterday my neighbor told me, I have to get out of the garage on saturday... I'm going to drive it to an underground garage at work so it doesn't sit outside in the thunder storms we are having right now.

Fun times
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Old 06-03-2021, 03:43 PM
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Do you have an oil restrictor on the oil feed? There are two piston ring type seals one behind the compressor and one behind the turbine wheel and it doesn't take a lot of pressure to blow past them. I think its recommended to run a 1mm restrictor but i drilled mine to 1.5 ish for a bit more lubrication. If you have it you could order new seals and even a bearing cartridge and you're gonna have a fully rebuilt turbo.
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Old 06-03-2021, 04:04 PM
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By the looks of it the oil still isn't draining through the turbo so if i were you i would take out the bearing cartridge out to see whats going on in there.
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Old 06-04-2021, 04:24 AM
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Thank you for your response.

Oil restrictor is in (1mm) and it's all the same hardware I used with the 2560R, that's a direct drop in replacement, NEVER had a single puff or oil leak with that.
Oil dran is a 19mm hose straight to the pan.

I've never rebuilt a CHRA, actually watched a video of someone rebuilding a 2560R (which is basically the same) and it wasn't too bad, maybe I can buy the Pulsar rebuild kit for 150€ and try to do it myself?
I don't want to pull it the 4th time and 5th time

edit: Delivery is expected between June 21. and July 5. :( Complete CHRA is 4-8 days standard and 2-4 express.. mhmmm

Last edited by der_vierte; 06-04-2021 at 05:39 AM.
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Old 06-08-2021, 05:14 PM
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Okay, I did a thing... I don't like to buy knock offs in general, but it was just too tempting.
The Pulsar turbos have been very reliable for some guys out there and I couldn't find any bad reviews about them. There is a guy in Scotland, who swears by them and also sells them.
The dude is making big power with these and for 300$ I think it's worth a try. If it fails on me, I know there is absolutely no option to a real Garrett CHRA, but we will see.

That's what I bought:

This is a 2860RS replacement CHRA and I SHOULD be able to put my GTX2860R Gen2 wheel on it, maybe I have to change the turbo seal plate/compressor housing carrier and put my Garrett one in for the compressor housing to fit.
I have looked after specs and the ID of the seal plates is the same for every GT25-35R turbos, so it should be okay. After swapping my wheel in, I'll let someone balance the whole CHRA just to be sure, that the turbo and manufacturer have the best shot possible. Would be stupid not to balance the CHRA and blame the turbo for it, I want it to be as fair as possible.

Shipping is surprisingly via "UPS Express Saver", which is cool as shipping was free! Expected delivery is 22.6-08.07, but UPS say on their website, that this method only takes 3-5 days, which would be awesome!

I'll let you guys know whats up and when it's here. Maybe start another thread dedicated to the Pulsar turbo
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Old 06-09-2021, 08:00 AM
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Fingers crossed my friend. I think I’d have been tempted to just buy the pulsar GTX 2860R Gen2 instead. Hope it works out for you.

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Old 06-09-2021, 09:16 AM
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It would have been the easier way, yes.

BUT: It was 499$ + paypal fees, + taxes/customs. AND I already have a superb wheel. Pulsar had the GT2860R CHRA listed on ebay Germany (sadly not the GTX) and I was able to pay via direct debit (saved another 32€).
All in all I can say, that I save around 120€ after paying 80€ for balancing. I'll take that. It's the exact same thing I get, but with a very high quality compressor wheel I already have.
Other people may just get the complete CHRA

Update:
Holy crap, delivery is expected on FRIDAY! I have to pull the turbo ASAP =D

Last edited by der_vierte; 06-09-2021 at 05:18 PM.
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Old 06-11-2021, 03:55 PM
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It's friday!

Pulsar turbo feels good, when spinning by hand, just as good as my other turbos. Build quality seems to be fine, doesn't look or feel cheap. Measurements are what they should be.





Lots of balancing marks!

Will pull my turbo sometime this weekend, but the wife's bday is on sunday, need to find some space in there.

Turbo will go to a shop, that balances everything you bring them, pretty cool. Not so easy here in Germany to find someone, who balances complete CHRA's...
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Old 06-22-2021, 12:29 PM
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Haven’t you got that turbo ready yet?
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Old 06-22-2021, 04:31 PM
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Pulled turbo last wednesday, put both CHRA's in the mail on thursday, havn't heard back up to now.

Hope they send it back to me on thursday, so I have a chance to get the car going again this weekend. I'm just excited to drive it again and do some street tuning.
Won't do anything with my pretty mellow timing map, as I'm on a rods only engine and I'm scared my stock pistons aren't up to the task. If I can hold my 260tq to redline, I'd be super pumped!

Let you guys know ASAP, when I'm ready, we have a freshly built piece of Autobahn here

Last edited by der_vierte; 06-23-2021 at 04:05 AM.
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Old 07-02-2021, 05:28 PM
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**** balanced and assembled again! My Pulrett... uh... Galsar.. ah, whatever, it's some China crap in Garrett housings and a quality UK cnc'd compressor wheel.

In hopes to find time tomorrow and that my arm after my first covid19 vaccination doesn't work against me too much.





Sun's out tomorrow, hopefully I can dial in the tune a little bit and show a corrected base VD
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Old 07-03-2021, 10:24 AM
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Can't finish it today, good friends birthday this evening, but tomorrow is the big day.

Sorry for letting you guys wait a little longer to see me fail again Nah, I have a good feeling this time
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Old 07-04-2021, 02:10 PM
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Does the nut on top of the comp. wheel go over enough threads on the shaft ? I don't wanna scare you or anything but the gt2860 shaft is shorter than the gtx shaft as the gtx comp. wheel is taller.
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Old 07-04-2021, 06:22 PM
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I have seen that, too, it does look bad from the pictures, but in reality the nut is about 2/3 on the shaft and they spun it up to nearly 200k rpm, so I expect it to hold.
With the left hand thread, I'm not too concerned about it loosen itself, but I'll keep an eye on it everytime I take it out the next weeks, for sure.
If it's okay for a month, I think it should be fine.

I'm just positive right now and want my car to be as good as it was, maybe even better, that's why I went trough all this

Edit:
I've had a look again and the nut from the pulsar is a little bit longer than the garrett one and it really is more like 3/4 of the nut on the shaft. If the dude at the shop was clever, he put a drop of loctite on it.
Maybe I should give him a call

Last edited by der_vierte; 07-05-2021 at 08:58 AM.
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Old 07-05-2021, 06:16 PM
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Update time.

I'll make it quick, it's late here...
Started the car after taking my time with the turbo installation, no smoke, let it idle for a few minutes, fixed the oil leak at the oil feed and went for a drive in the city, had to go a long uphill right away, turbo sound was absolutely the same as before and after a quick pull SMOKE again.
Okay, got back in the underground garage, did some mini pulls there and the smoke wasn't THAT bad, so I decided to drive to the gas station and fill her up with some 102oct fuel, smoked the crap out of it on the way there and saw the cops with emergency lights near the station.
Remember, I don't have a cat in there atm and you are a poor poor man, if you get caught without a cat in your car, really something to avoid.

Turned out to be an escorted heavy haulage and they normally do them after 10pm. I can tell you, I nearly **** my pants and the cat was laying in the passenger footwell Okay, 500m to the Autobahn and just burn that thing free. Still smoked like crazy, but I kept going on the Autobahn and just boosted like crazy. Smoke went away after 15minutes of driving hard. Maybe the old turbo was okay, idk, but now I have a new one and it's running good.

I don't like the fact, that there is a 5-6psi spring in the WG, havn't had time to fiddle with the tune, so my AFRs were RICH and my old OL EBC table was only enough for 13-14psi. Need to fix fueling, EBC and wastegate base pressure.
That's a 4th gear pull on a 6speed with only 30% duty at 2500rpm and with low timing and shitty fueling:


Single digit AFRs Couldn't rev it all out, but at 9,5:1...

Turbo feels like my 2560R, maybe a hair slower transient response, but I'll try to optimize the whole setup, it's just not good right now. Much room for improvement. Hope the smoke stays away

Last edited by der_vierte; 07-07-2021 at 05:54 AM.
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Old 07-07-2021, 07:00 AM
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I'm calling out @andyfloyd Andy, pls...

Regarding the sound: It really IS kinda loud out of boost, there was a dude with his girlfriend right when I left the underground garage, who filmed me both times I went by him I just asked "Everything good?" and he asked in broken German: "Is it Turbo? I can hear, but smell oil".
HAHA! Never had someone film my car, because it sounds cool I think about building an air box with some kind of isolation, I suspect you can hear it from far away, attracts too much attention from the wrong people.

Want to drive it this evening, trying to get more preload on the gate, put my cat in, adjust fueling a little bit, more boost duty... I believe the flapper gets pushed open, even when the WG doesn't get a signal
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Old 07-12-2021, 05:01 PM
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Went for another little tuning session this evening, rest of the week is going to be rainy, so I went for a drive.
That's what we came up with:


When going full tilt, my rpm signal is jumping around a good bit, I'm curious if my non shielded extension on the CAS wiring has something to do with it. Can't be that much timing belt slap, I had it pretty firm.

Anyways, that's 7psi right off the gate and 16psi on the EBC. I ported the wastegate decently, but there is still some creep at 6k+ in low boost, which makes it a SUPER FLAT supercharger powerband Hit some untuned cells at the end.

Sadly I can't get it to hold more than 16psi, when it's fully heat soaked, just overshoot a little and then it settles at ~16psi. Need more preload on the wastegate itself or maybe an aftermarket one, don't know. The spring is so damn light!

I can now say, the GTX2860R Gen2 is a good turbo. It's not the holy grail of the turboworld, but it's a good match to the BP. Getting it to spool from say 2000rpm up, the 2560R was juuust a little bit quicker.
Maybe that changes with more preload, but I don't think so. It's good, but maybe not EFR good. Do I expect too much? 200tq at 3500rpm in 3rd gear sounds very good and then it really takes off from there...

Next thing is a better intercooler! I'm switching to a FMIC.EU intercooler, they have a very nice internal design and I'm hitting 25°C above ambient with the GTX and my current Toyosports. Seems like the GTX is producing more heat...
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Old 07-13-2021, 06:51 AM
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Looks like you're making progress!

FMIC.EU intercooler is great. I run one as part of Kraken's intercooler kit. My intake temps barely get above ambient so long as the car is moving and has air flow/isn't heat soaked. It's not an especially hot climate in the UK, though.

Here's a log from 27th June 2021. Ambient air temp was ~19 Celsius (66 Fahrenheit) at time of log.





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Old 07-13-2021, 07:53 AM
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That's what I'm looking for! Thank you very much! Kraken had the toyosports in their first batch of IC and it was the easy route for me that time. Bigger goals, bigger/better coolers I suppose.
I went for the larger 550x180x63mm core, shouldn't have cooling issues in the future. I accept that it will have a tiny little bit more lag due to the size,but when my charge temps are in check even at 20psi, I'm happy.
These go for like 100€, I ordered matt black, that was 117€ as an option, but I don't like silver IC, the black one right now really is impossible to see for someone not really inspecting the car.

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