Miata 1.6 + GT28RS BB ??
Hello.
I'm new on this forum, and my english is very bad :facepalm: So, i have a 1.6 miata turbo with this setup: -Megasquirt Pnp ECU -430cc Supra Bi-turbo Injectors -KnockSenseMS -Dyn Dual Feed Rail -AEM Wideband -Complete XTD Racing clutch kit & light flywheel -Wiseco Turbo pistons 8:5 -ARP Head Studs -Forged Connecting Rods -Mazda 323 Turbo PCV Valve -Intercooler Now i buy a new turbo: TURBO GT28RS BALL BEARING 0.60 A/R TURBINE: .86 A/R TRIM: 60 I liked your opnion about this configuration Best regards |
Opinion on what?
And what are you looking to accomplish with the car? Drag? Road race? Street car? Because that is a fairly large turbo for a 1.6, and if you're looking for quick spool or good midrange you might want to look into something smaller. |
I've driven that exact setup, down to the turbine A/R. That turbo is too big for a 1.6, IMO. You want to be looking at a 2560R, or a built 1.8 motor.
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Originally Posted by Savington
(Post 451035)
I've driven that exact setup, down to the turbine A/R. That turbo is too big for a 1.6, IMO. You want to be looking at a 2560R, or a built 1.8 motor.
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The turbo spool was pretty bad, worse than I would want to live with on the street or the track. My 2871R with the same .86 A/R turbine housing on my built 1.9 liter spools much faster. The 2860RS on the 1.6 wouldn't kick hard until after 4500rpm, and there was a serious lag in power after every shift as well. Simply too big for the motor. My 2871R with another 250cc of displacement is at full grunt by 4000rpm, and while there is a small delay between shifts, it's about half of what the 1.6/2860RS was.
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Hmmm, Im at 16psi by 4200 rpms with my 2871 on my 1.6. My turbine is a .64 though.
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Yes. Too big
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I like mine just fine. Kthnxbye.
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:noob::vash::vash:
I gona try change for a : 1º T3 . 48 A/R COMPRESSOR .60 A/R TURBINE .60 TRIM or 2º GT25 (BALL BEARING) 0.60 A/R TURBINE: .49 A/R TRIM: 55 ???? What is the best in your's opinion ? ( for the 1.6L) |
Originally Posted by nufi
(Post 451053)
:noob::vash::vash:
I gona try change for a : 1º T3 . 48 A/R COMPRESSOR .60 A/R TURBINE .60 TRIM or 2º GT25 (BALL BEARING) 0.60 A/R TURBINE: .49 A/R TRIM: 55 ???? What is the best in your's opinion ? __________________ Best Car Insurance | Auto Protection Today | FREE Trade-In Quote |
Originally Posted by levnubhin
(Post 451054)
What are your goals? What do you plan to do with the car?
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That T3 might work, although I'll let Scott comment on the exact size since I'm not a T3 guru.
You want that GT25 (.60 comp a/r = GT2560R) with a .64 turbine A/R, NOT the .49 turbine A/R. |
Originally Posted by Savington
(Post 451056)
That T3 might work, although I'll let Scott comment on the exact size since I'm not a T3 guru.
You want that GT25 (.60 comp a/r = GT2560R) with a .64 turbine A/R, NOT the .49 turbine A/R. I buy the gt28, but maybe i can speak with him to change. In your opnion, who make a better street car ? Ps. Sorry for bad english :vash: |
Here is a gt28rs .86ar hotside on a stock 1.6l
http://i295.photobucket.com/albums/m...otta-dyno1.jpg |
Originally Posted by Splitime
(Post 451065)
Here is a gt28rs .86ar hotside on a stock 1.6l
http://i295.photobucket.com/albums/m...otta-dyno1.jpg |
He's hitting full boost there at about 4400rpm and he had a damaged turbine wheel when he did that dyno.
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Originally Posted by neogenesis2004
(Post 451069)
He's hitting full boost there at about 4400rpm and he had a damaged turbine wheel when he did that dyno.
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Originally Posted by nufi
(Post 451082)
Is this car ? :bowrofl:
YouTube - WMHM8 Miotta In Car part 1 |
1 Attachment(s)
Originally Posted by Splitime
(Post 451065)
Here is a gt28rs .86ar hotside on a stock 1.6l
http://i295.photobucket.com/albums/m...otta-dyno1.jpg I rest my case. |
What case would that be exactly? Dave is running like 4lbs less than you in his dyno. Plus his damaged turbine isn't exactly helping his spool in that dyno.
Both of you have approx 180tq at redline, you just have more before that because you are running like 15 or more psi. There is not boost plot on your dyno, but it is safe to guess that you hit peak boost near peak tq because of the falloff afterward. IF that assumption is correct it looksl ike you hit peak boost around the same time as well. I think your dyno and Daves dynos would be VERY similar at the same boost. |
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