TE44, PT52 and PT61 Comparisons.
09-22-07, 02:35 AM
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TE44, PT52 and PT61 Comparisons.
Well I have decided on one of these turbos, because I'm not really trying to obtain sick dyno numbers, my goal is to make the *** dyno happy and leave a few people behind. I already purchased a BL stage 1 kit that comes with the 61, maybe I can return the turbo for a smaller one. Either way, does anyone have any experience with the two smaller turbos? My build will consist of a W58 with 105K and counting, RPS Max clutch (~400HP) and Fidanza Flywheel. For management I'm looking at using a wideband and SAFC. Anyone got any advice on this?
Based on MVP's site, these are the stats of the turbos:
TE44- Capable of 450rwhp full boost at 3200rpm.
PT52 Capable of 520rwhp, hits full boost at 3800rpm.
PT61 Capable of 600rwhp, hits full boost at 4800rpm.
I'd like real world advice, input much appreciated!!
Based on MVP's site, these are the stats of the turbos:
TE44- Capable of 450rwhp full boost at 3200rpm.
PT52 Capable of 520rwhp, hits full boost at 3800rpm.
PT61 Capable of 600rwhp, hits full boost at 4800rpm.
I'd like real world advice, input much appreciated!!
09-22-07, 09:31 PM
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Apparently not...Good question.
My comments are specific to staying under 450whp into the foreseeable future and that's Yuma's stated goal as well. I'm guessing you guys are all past those numbers.
Clearly the T61 has is supporters. Me, I'd like to see more power (vs boost) earlier. Specifically the *** dyno does not register boost, just torque and h.p. I'd ask what is the A/R that you guys are running?
My Turbonetics T61 has an A/R of .70 I think I would have been better off with a smaller A/R with it to bring on usable boost sooner. I'd love to know about a smaller turbo, smaller A/R, ball bearing as well as a little more modern turbo than the T61 design making hp tq way early straight to redline.
My comments are specific to staying under 450whp into the foreseeable future and that's Yuma's stated goal as well. I'm guessing you guys are all past those numbers.
Clearly the T61 has is supporters. Me, I'd like to see more power (vs boost) earlier. Specifically the *** dyno does not register boost, just torque and h.p. I'd ask what is the A/R that you guys are running?
My Turbonetics T61 has an A/R of .70 I think I would have been better off with a smaller A/R with it to bring on usable boost sooner. I'd love to know about a smaller turbo, smaller A/R, ball bearing as well as a little more modern turbo than the T61 design making hp tq way early straight to redline.
09-22-07, 10:38 PM
#6
My Turbonetics T61 has an A/R of .70 I think I would have been better off with a smaller A/R with it to bring on usable boost sooner. I'd love to know about a smaller turbo, smaller A/R, ball bearing as well as a little more modern turbo than the T61 design making hp tq way early straight to redline.
09-23-07, 04:27 AM
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At 21psi, we only made ~365rwhp with a te-44 on a 2jz-ge engine with supra tt headgasket, msd 6a ignition, AEM EMS pro tune, & NGK 6097 spark plugs at 0.026'' gap. So, I don't believe the TE-44 will hit 450rwhp on our 2jz-ge na-t setups....if I can find a dyno open tomorrow or Monday, I'll post my results to prove my hunch 
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09-23-07, 07:55 AM
#8
go with the bigger of the three... turbos will last longer if you aren't pushing them to their limits... also, the car will have a cooler intake charge as the turbo won't be working quite as hard, you will also be able to run less boost to make the same HP... the extra lag will barely be noticeable...
here's a quick first hand example...
my talon, when I first bought it years ago, 14b turbo, 19 psi and it was slow... (imo) I blew up the turbo running 19 psi - it's realistic max on pump gas... I then upgraded to a 20g... with the 20g, I could run over 20 psi on pump gas, and at its 15psi wastegate boost, it was significantly faster than the 14b... an increase in lag, but no decrease in drivability...
here's a quick first hand example...
my talon, when I first bought it years ago, 14b turbo, 19 psi and it was slow... (imo) I blew up the turbo running 19 psi - it's realistic max on pump gas... I then upgraded to a 20g... with the 20g, I could run over 20 psi on pump gas, and at its 15psi wastegate boost, it was significantly faster than the 14b... an increase in lag, but no decrease in drivability...
09-23-07, 09:24 AM
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09-24-07, 02:00 PM
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Clearly the T61 has is supporters. Me, I'd like to see more power (vs boost) earlier. Specifically the *** dyno does not register boost, just torque and h.p. I'd ask what is the A/R that you guys are running?
My Turbonetics T61 has an A/R of .70 I think I would have been better off with a smaller A/R with it to bring on usable boost sooner. I'd love to know about a smaller turbo, smaller A/R, ball bearing as well as a little more modern turbo than the T61 design making hp tq way early straight to redline.
My Turbonetics T61 has an A/R of .70 I think I would have been better off with a smaller A/R with it to bring on usable boost sooner. I'd love to know about a smaller turbo, smaller A/R, ball bearing as well as a little more modern turbo than the T61 design making hp tq way early straight to redline.
Putting a smaller A/R on a T61 wouldnt be a good idea; your spool time might increase, but the airflow up top would be a lot worse. There's a lot of new research out saying you should never get an exhaust A/R lower than the compressor A/R due to airflow balancing or something like that.
And I dont think the GT3076R would be such a hot turbo. The little T3 hotside would choke the motor for sure. .63 A/R on a T3 is not the same as that on a T4. My best guess at equivalency would put it around a .50 T4 roundabouts. I wouldnt put anything on a 2jz motor with a little T3 exhaust side unless it was twins.
I dont see whats to debate about here. If your driveline can handle it and you've got the fuel, the SMALLEST turbo I'd go with would be a T61.
Last edited by Bean; 09-24-07 at 02:03 PM.
09-24-07, 02:44 PM
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Wow I wasn't expecting such a good response. From the looks of it, the T61 is my best bet overall, because if I dwarf myself with a smaller turbo, It will be harder to upgrade (if that 6speed or R154 ever finds its way to my door step). Bean made a very good point about the top end being bad, it would limit my over all potential. I'd like the faster spooling turbo, seeing as my limitation is the transmission. If I ever replace that, I'd hate to have to get a bigger turbo too. Thanks guys, carry on the thread though if there are others wanting more in depth information.
09-25-07, 12:48 AM
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Wow I wasn't expecting such a good response. From the looks of it, the T61 is my best bet overall, because if I dwarf myself with a smaller turbo, It will be harder to upgrade (if that 6speed or R154 ever finds its way to my door step). Bean made a very good point about the top end being bad, it would limit my over all potential. I'd like the faster spooling turbo, seeing as my limitation is the transmission. If I ever replace that, I'd hate to have to get a bigger turbo too. Thanks guys, carry on the thread though if there are others wanting more in depth information.
My transmission (W58 with XXXXXXXX mileage (unknown) ) is doing just fine.
But I do have a spare in my garage
