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Old 05-06-2008, 01:10 PM   #21
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Quote:
Originally Posted by y8s View Post
isn't the tater's compressor a T3?
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Old 05-06-2008, 01:35 PM   #22
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yep. 47.2mm in 60mm ex. same wheel as my t3 super iirc. Plus i have an equvialant a/r and larger diameter turbine.
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Old 05-06-2008, 02:14 PM   #23
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Originally Posted by Savington View Post
Won't someone please do a 2871 so we can see what the thing will do

OK. I'll have a chat with Tim.

Last edited by paul; 05-06-2008 at 02:32 PM.
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Old 05-06-2008, 02:22 PM   #24
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Originally Posted by MX5-4me View Post
I'm at 180 WHP Dyno Dynamics numbers at 7-8 PSI at the manifold. from what folks have told me that is around 210 whp Dynojet numbers.

Try doing that on a GT2560.. ain't gunna happen.. i'm running a T3 Housing .63 A/R with an external gate so it's a bit different but shouldn't be THAT much different.

What are your plans for the car? are you planning on Autox or track time?

The only thing I might change is your exhaust housing.. switch to the smaller A/R.

am i reading this wrong? 7-8psi on a 2560 ain't gonna make 210hp on a dyno jet? i guess that means 8.99psi on a 2560 wouldn't make 246hp on a dynojet either
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Old 05-06-2008, 02:25 PM   #25
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Quote:
Originally Posted by paul View Post
am i reading this wrong? 7-8psi on a 2560 ain't gonna make 210hp on a dyno jet? i guess that means 8.99psi on a 2560 wouldn't make 246hp on a dynojet either
stop bragging
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Old 05-06-2008, 02:25 PM   #26
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I have the GT2860Rs .86AR and love it. It spools up very well with the AVC-R controlling the wastegate; 5+ psi by 3,000 rpm. A little over 3,500 and it's fully spooled to 12psi.

It was spooling a little better with a heavier spring in the wastegate, but I have to run a 4 pounder until BEGI sorts out the boost creep issue I'm having.
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Old 05-06-2008, 02:40 PM   #27
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Quote:
Originally Posted by paul View Post
am i reading this wrong? 7-8psi on a 2560 ain't gonna make 210hp on a dyno jet? i guess that means 8.99psi on a 2560 wouldn't make 246hp on a dynojet either
Not with his set up no..Find a Dyno plot on a Dynojet with no correction factor making those numbers using a BEGi Log mani.
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Old 05-06-2008, 02:43 PM   #28
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Is that what the BEGi S5 manifold you're using is?
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Old 05-06-2008, 02:47 PM   #29
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Quote:
Originally Posted by paul View Post
Is that was the BEGi S5 manifold you're using is?
Yes.

all the Dynojet plots i've seen use a correction factor for crank HP.
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Old 05-06-2008, 02:52 PM   #30
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then I stand corrected. I guess you will not see nearly as much power as I make with an inferior exhaust manifold using the gt2560r.
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Old 05-06-2008, 03:00 PM   #31
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then I stand corrected.
Just like your dyno numbers.

Put that thing on a Dyno Dynamics with no correction and find out what you really have.
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Old 05-06-2008, 03:14 PM   #32
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Quote:
Originally Posted by pschmidt View Post
I have the GT2860Rs .86AR and love it. It spools up very well with the AVC-R controlling the wastegate; 5+ psi by 3,000 rpm. A little over 3,500 and it's fully spooled to 12psi.

It was spooling a little better with a heavier spring in the wastegate, but I have to run a 4 pounder until BEGI sorts out the boost creep issue I'm having.
12psi at 3500rpm is ******* perfect. I don't see how anyone could ask anymore from a turbocharger. If you're expecting tire smoke at 2500rpm, you're a moron. My turbo on the corrado spooled at 4000rpm, and it drove just fine. I had no complaints.

What motor?
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Old 05-06-2008, 03:15 PM   #33
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I have a 2560 with 10,000kms @8-9psi which I would be willing to trade+cash. Let me know if you are interested in making a deal as I am about to install a Megasquirt and maybe a built engine eventually.
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Old 05-06-2008, 03:21 PM   #34
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like I said, I'm going to try it out first.
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Old 05-06-2008, 03:29 PM   #35
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Quote:
Originally Posted by MX5-4me View Post
Just like your dyno numbers.

Put that thing on a Dyno Dynamics with no correction and find out what you really have.
it'll be going on a set of dynapacks next if i get my way
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Old 05-06-2008, 03:31 PM   #36
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Quote:
Originally Posted by pschmidt View Post
I have the GT2860Rs .86AR and love it. It spools up very well with the AVC-R controlling the wastegate; 5+ psi by 3,000 rpm. A little over 3,500 and it's fully spooled to 12psi.

It was spooling a little better with a heavier spring in the wastegate, but I have to run a 4 pounder until BEGI sorts out the boost creep issue I'm having.
That's pretty amazing. Makes me want to go EBC right now i'm just using the small red spring in a 38mm Tial and creeping to ~7.5 PSI.

What Mani are you running?
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Old 05-06-2008, 03:37 PM   #37
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Originally Posted by paul View Post
it'll be going on a set of dynapacks next if i get my way

Cool at least you will have two system to compare.. Make sure they aren't trying to pull wool over your eyes with a tricky correction.
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Old 05-06-2008, 03:43 PM   #38
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this correction you speak of on the dynojet. is this a setting in the hardware of in the software to read it? the program i have has correction factor settings. is that it? i think it's called winpep7
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Old 05-06-2008, 03:55 PM   #39
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Originally Posted by paul View Post
this correction you speak of on the dynojet. is this a setting in the hardware of in the software to read it? the program i have has correction factor settings. is that it? i think it's called winpep7
The correction factor is done on the software that is run on the PC (or whatever the system) at the place that has the dyno during the pull.

Most places will tell you what correction factor they use if you ask.

What i'm not sure about is if you get the the file from the dyno if it has the correction factor embedded in the data or if it's only within the application itself.
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Old 05-06-2008, 04:09 PM   #40
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dynojet records raw data and test conditions and you can pick whatever correction factor you want in the software.
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