Why not Garrett?
I've used loads of different turbos on 4cyl cars, and a good one vs a bad one can be night and day difference everywhere. Now that doesnt always equate to the most expensive being the best, although generally most are all BB units simply because they are better and do perform better than even similar JB turbos.
And saying an extra 200lbft is not achievable at 3000rpm is as silly as saying a PD blower could not generate an additional 200lbft at the same vs another build.
A good well matched turbo vs a bad one, should easily beat that bad turbo everywhere. Little different than most modern turbos far exceeding the designs from say 20 years ago of similar sizes.
Modern smaller units spool far earlier, make more power everywhere than their older counterparts.
But near $3k+ each for a turbo is a hell of a price to pay. Garrett or others would need to offer pretty good data to convince people they are worth it.
Although some of the Gen2 Precisions, and of course the BW EFR's are all similar prices and they do perform very well.
But so do cheaper JB units too.
As said, someone convince someone who does testing to run some back to backs with about $30-40k worth of turbo lol
And saying an extra 200lbft is not achievable at 3000rpm is as silly as saying a PD blower could not generate an additional 200lbft at the same vs another build.
A good well matched turbo vs a bad one, should easily beat that bad turbo everywhere. Little different than most modern turbos far exceeding the designs from say 20 years ago of similar sizes.
Modern smaller units spool far earlier, make more power everywhere than their older counterparts.
But near $3k+ each for a turbo is a hell of a price to pay. Garrett or others would need to offer pretty good data to convince people they are worth it.
Although some of the Gen2 Precisions, and of course the BW EFR's are all similar prices and they do perform very well.
But so do cheaper JB units too.
As said, someone convince someone who does testing to run some back to backs with about $30-40k worth of turbo lol
PS .....NOT a diesel.
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From: Norn Iron
Because the PD reference is because it would be easy to have a turbo setup making plenty of boost at 3k....as OEM's do. Even if most are happy with much laggier setups
And where did I say it was common ? I said it was very achievable. No different than the same difference at 4000, 5000, 6000, 7000, 8000, 9000, whatever.
Get me the turbos and buy me a dyno and I'll test whatever you want lol
And where did I say it was common ? I said it was very achievable. No different than the same difference at 4000, 5000, 6000, 7000, 8000, 9000, whatever.
Get me the turbos and buy me a dyno and I'll test whatever you want lol
Because the PD reference is because it would be easy to have a turbo setup making plenty of boost at 3k....as OEM's do. Even if most are happy with much laggier setups
And where did I say it was common ? I said it was very achievable. No different than the same difference at 4000, 5000, 6000, 7000, 8000, 9000, whatever.
Get me the turbos and buy me a dyno and I'll test whatever you want lol
And where did I say it was common ? I said it was very achievable. No different than the same difference at 4000, 5000, 6000, 7000, 8000, 9000, whatever.
Get me the turbos and buy me a dyno and I'll test whatever you want lol
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From: Norn Iron
Don't change the goal posts now. It is COMPLETELY different than 5/6/7/8000 rpms because nobody runs a turbo so small that has a boost threshold that low on a turbo setup to pick up 200ftlbs at 3000rpms. That's why your argument doesn't hold weight. You keep saying outside of WOT and low rpm. You're not swapping the SAME SIZE turbo from name brand to chinesium and picking up 200ftlbs at 3000 rpms at the same boost. Post a graph.
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From: Norn Iron
But it would make a very good test. Although a friend is building a car with a pair of G3-900's on a 7.0 LS....so that should be equally interesting. More so as it will only weigh around 1800lbs
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From: Little Austin
Andrew
I'm not against name brand turbos at all if the need/build calls for it. This new series of Garrett's do look interesting. I just don't like that people assume the setup is trash because someone isn't using brand XYZ turbo.
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From: Little Austin
Andrew
I think the real problem with the G25-660 besides being $2500 a piece which is silly for a turbo this small, is the 49/54mm turbine wheel. I ran Garrett 58/55's (55/60mm turbine) as well as some others and didn't have stellar results so I cant imagine something smaller would be any better as the only real claim they state for the G25 over a GTX is the compressor flows 10lb/min more which doesn't help if your turbine can't flow enough to support it.
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From: Norn Iron
That isnt to say an external gate may not work better though
But a G25 really is a little turbine, still don't know of anyone using any of them yet, even on 4cyl cars.
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2 x Garrett GTX3071R with 0.61 A/R Double V-banded Ceramic Coated Turbine Housings (856801-5039S) - $4085.38
2 x Reverse Rotation Garrett GTX3071R with 0.61 A/R Double V-banded Ceramic Coated Turbine Housings (856802-5004S) - $4321.94
Subtotal: $8407.32
Tax, Shipping/Handling - $738.51
Total: 9,145 nopes.
Pretty safe to say that I'll very likely just end up spending (ironically) $1320 for 4x Chinese Billet GT30X /w 0.63 A/R T3 turbine housings and no reverse rotation.
2 x Reverse Rotation Garrett GTX3071R with 0.61 A/R Double V-banded Ceramic Coated Turbine Housings (856802-5004S) - $4321.94
Subtotal: $8407.32
Tax, Shipping/Handling - $738.51
Total: 9,145 nopes.
Pretty safe to say that I'll very likely just end up spending (ironically) $1320 for 4x Chinese Billet GT30X /w 0.63 A/R T3 turbine housings and no reverse rotation.
2 x Garrett GTX3071R with 0.61 A/R Double V-banded Ceramic Coated Turbine Housings (856801-5039S) - $4085.38
2 x Reverse Rotation Garrett GTX3071R with 0.61 A/R Double V-banded Ceramic Coated Turbine Housings (856802-5004S) - $4321.94
Subtotal: $8407.32
Tax, Shipping/Handling - $738.51
Total: 9,145 nopes.
Pretty safe to say that I'll very likely just end up spending (ironically) $1320 for 4x Chinese Billet GT30X /w 0.63 A/R T3 turbine housings and no reverse rotation.
2 x Reverse Rotation Garrett GTX3071R with 0.61 A/R Double V-banded Ceramic Coated Turbine Housings (856802-5004S) - $4321.94
Subtotal: $8407.32
Tax, Shipping/Handling - $738.51
Total: 9,145 nopes.
Pretty safe to say that I'll very likely just end up spending (ironically) $1320 for 4x Chinese Billet GT30X /w 0.63 A/R T3 turbine housings and no reverse rotation.
TECH Fanatic
Joined: Dec 2019
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