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Old 09-08-2010, 04:41 PM   #1
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Default Trade your GT2860 or 71 for my 76?

I only need the compressor housing and CHRA. I'll be keeping my .64 A/R turbine housing with the welded-shut wastegate flapper.

the short version:
Since I sold off all my built motor goodies and want the car to be more of a streeter/daily car, I dont need headroom for 350 rwhp. Or even 300.

I want to see how the 2860 and 2871 perform with the .64 turbine housing on a stock 01 with the VVT working.

Who's up for a trade or a "let me try it out" then trade?

Cmon, I know there are those of you out there who wish they got something bigger.

here's how the 2876 spools in my car with cam retarded 3 degrees:




here is VVT at full 12 degrees retard (worst case scenario):



Stock intake cam advance, say on a 99-00 car, would probably put you fairly close to the first graph--or an adjustable cam gear on the intake would get you exactly there.

takers?
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Old 09-08-2010, 04:44 PM   #2
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If you ever decide you want the bigger turbine housing I'll trade you your little .64 to hold my pens at work, rather than my current .86.
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Old 09-08-2010, 06:09 PM   #3
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If you want a random turbine housing to hold pens at work, I have a CT-26 hotside from my old celica alltrac.
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Old 09-08-2010, 07:53 PM   #4
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how many miles on said turbo?
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Old 09-08-2010, 08:36 PM   #5
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Lots.

but pretty light boost. not above about 10 psi and not for a lot of time. the turbo's only been to one track day and an autocross or two. i can check shaft play. it still takes a long time to stop spinning after shutting the car down from idle.
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Old 09-08-2010, 08:39 PM   #6
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I'm going to have a 2860 for sale here in a few weeks if you want to buy one straight out.
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Old 09-08-2010, 09:15 PM   #7
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Quote:
Originally Posted by pschmidt View Post
I'm going to have a 2860 for sale here in a few weeks if you want to buy one straight out.
Sounds good. My budget is zero.
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Old 09-08-2010, 09:53 PM   #8
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Quote:
Originally Posted by y8s View Post
Lots.

but pretty light boost. not above about 10 psi and not for a lot of time. the turbo's only been to one track day and an autocross or two. i can check shaft play. it still takes a long time to stop spinning after shutting the car down from idle.
Ditto, mine has about 30k miles on it. Its a little dirty, but nothing some carb clean couldn't take care of. Do you have the compact compressor housing on yours or the full size? The full size will make the "turbo not hit block!" hit the block.
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Old 09-08-2010, 10:38 PM   #9
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the turbo itself:
http://gallery.y8s.com/miata/turbo/gt25/

installed:
http://gallery.y8s.com/miata/turbo

I'm guessing that's the full size? Turbo not hit nothing on my car. Except that tingly spot in my loins?
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Old 09-08-2010, 10:59 PM   #10
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Quote:
Originally Posted by y8s View Post
I'm guessing that's the full size? Turbo not hit nothing on my car. Except that tingly spot in my loins?
Turbo not hit block?
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Old 09-08-2010, 11:18 PM   #11
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I'm using a s4 style manifold. Pretty sure this will not fit in my car.
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Old 09-09-2010, 09:15 AM   #12
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ahh damn I'd like to have that turbo, but the 2860rs I have is brandy new, I can't trade straight up :(
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Old 09-09-2010, 11:59 AM   #13
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Quote:
Originally Posted by TurboTim View Post
ahh damn I'd like to have that turbo, but the 2860rs I have is brandy new, I can't trade straight up :(
make me a reasonable offer. at some point early october I can start doing more digging into the condition of mine.
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Old 09-10-2010, 02:14 AM   #14
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Quote:
Originally Posted by pschmidt View Post
I'm going to have a 2860 for sale here in a few weeks if you want to buy one straight out.
What a/r?
Standard miata-world hot and coldside inlets and outlets?
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Old 09-10-2010, 01:08 PM   #15
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Quote:
Originally Posted by JasonC SBB View Post
What a/r?
Standard miata-world hot and coldside inlets and outlets?
.86 AR 3" in and 2 out, I believe.




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