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Dyno Results - Borg Warner 83/75 On T6


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I mentioned I'd post these, so cross posting from tbricks.

So here is my test of the Borg Warner 83/75 (60mm) turbo.

Car had some major cooling issues and I am still running out of fuel flow for some reason I need to investigate (I suspect pump voltage).

Final result was 541whp/467ftlb on very conservative (heck the car was overheating constantly!) pump gasoline with some water/meth at 22psi. Torque curve is not bad but I feel it's still a tad lazy. I will compare to a HX40 in a couple weeks.

Any thoughts?

b6e56771.jpg

Also, I forgot to add, anyone in the vancouver BC area that wants to dyno, I apbolsutely recommend SpeedPro in Surrey. They were awesome!

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Looks quite smooth, no? Drop off after 6K is due to the fueling?

Looks like you have plenty of torque even below 4,5K!

You are going to swap this one out for a (larger?) HX40?

Are you close to the limits of the suspension/rear axle on this?

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Thanks guys. Power is falling off due to the size of the turbo, it's starting to run out of steam - backpressure in the exhaust is probably getting high.

I should be fine in terms of rear end/suspension as I have a ford 8.8.

I expect the M90 may be on borrowed time now, though.

The HX40 is pretty similar in size, but I am hoping for even more low end torque. If I can make the same power and just get boost a few hundred rpm sooner I'll be very very happy. The HX40 is known for having a very good turbine wheel and the borg warner is known for having a mediocre turbine wheel, so maybe I'll pick up some top end as well.

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Looks very smooth indeed. Holsets are known to spool as quick as the Garrett ball bearings or similar. Spool looks similar to what mine is right now and boy is it laggy. I hope once I get my VVT controllers in it will be more driveable.

Congrats on the numbers. Looking forward to see the HX40 (I'm looking for a HX35).

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Wow...

Very impressive, as others have noted appears to be a very smooth power curve, and good luck with the HX40. I hear a lot of people are blown away by that turbo, simply cause they don't cost that much to begin with, seem to take the abuse, and are normally a big surprise (pleasant), in the power delivery dept.

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Nice torque curve Kenny!

How much do you think the stock sleeves will take?

*knocks on wood madly*

Don't even mention the sleeves you bastard!! They might hear you! LOL.

I'm not sure about the sleeves, but but if yesterday's dyno is any indication, they can certainly take a beating if the motor is tuned ok, it would seem. The motor was getting HOT on these runs, like coolant temps up to 230 degrees at the end of some runs. I'm pretty impressed.

My theory, based on not much of anything, is that they get iffy around 100whp/cylinder. I'm not after any more power than that. I'd like to have a 600whp dyno sheet but that's just for vanity's sake. :lol: I don't need that much power for trips to starbucks and work. 500 or so is ok for that. :lol:

Thanks for the kind words guys. It is pretty nice to drive and it didn't take much playing with the tune at all to get things nice and smooth. Wide open throttle from 4000-4500 it does still kick a bit hard though, you definitely need to be paying attention. lol.

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*knocks on wood madly*

Don't even mention the sleeves you bastard!! They might hear you! LOL.

I'm not sure about the sleeves, but but if yesterday's dyno is any indication, they can certainly take a beating if the motor is tuned ok, it would seem. The motor was getting HOT on these runs, like coolant temps up to 230 degrees at the end of some runs. I'm pretty impressed.

My theory, based on not much of anything, is that they get iffy around 100whp/cylinder. I'm not after any more power than that. I'd like to have a 600whp dyno sheet but that's just for vanity's sake. :lol: I don't need that much power for trips to starbucks and work. 500 or so is ok for that. :lol:

Thanks for the kind words guys. It is pretty nice to drive and it didn't take much playing with the tune at all to get things nice and smooth. Wide open throttle from 4000-4500 it does still kick a bit hard though, you definitely need to be paying attention. lol.

:lol:

What's your EBR like with these setups?

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Any vids? The graph looks pretty nice. Are you running WMI to help with the heat.

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I haven't measured EBR with this setup, my guess is it's getting high at 20psi+, especially on the top end, as the car used to make power right to 7600, and the only change is the turbo. You're right though, I wish I had. That would have been good comparative data. I must remember to set it up for the HX40. The overheating issues got me a bit flustered, after the first pull and it shot coolant everywhere I thought the car would be heading home on a tow truck. :lol: I didn't actually expect to make any numbers so I wasn't as prepared as I could have been. lol.

My buddy took some vids but he's just left for holidays, and the shop too some vids too, not sure when they'll post them. I will post up anything I get though, there are some vids around, in theory.

Also for anyone who missed it, keep in mind these are T6numbers, I have an extra cylinder which is part of the reason for the power vs. boost level. I think there are a couple guys on here making similar numbers if you factor that in. This was on pump gas and yeah I do use W/M injection as well. The smoothness of the chart is due to having a standalone management system.

On race that number would be more like 560-570, the car picks up huge power if you lean it out from 11.8-12.0 to 12.8 or so, but on pump gas and stock pistons I am scared. :lol: I had a few lean spike at lower boost levels and the power gain is phenomenal.

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