How Do You Get 350BHP from a 1.6? - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 07-10-2011, 09:45 AM   #21
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Quote:
Originally Posted by neogenesis2004 View Post
I'm pretty sure the first thing you need to do is perform an animal sacrifice on top of the valve cover. Something small will suffice, like a baby rabbit.
LOL

Its a T28 Garrett of a Nissan 200sx. I have the tune and will try and get it posted up now.
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File Type: msq CurrentTune.msq (78.9 KB, 56 views)
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Old 07-10-2011, 09:45 AM   #22
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Not sure if this is the tune or will work. I think it is! Let me know what you think and if it will open etc.
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Old 07-10-2011, 10:16 AM   #23
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Quote:
Originally Posted by ronniebiggs View Post
Not sure if this is the tune or will work. I think it is! Let me know what you think and if it will open etc.
You've not attached anything....
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Old 07-10-2011, 10:20 AM   #24
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It shows an attachment for me. Does this thread have it attached?
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Old 07-10-2011, 11:54 AM   #25
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I made 450+ BHP at 18 psi, lulz you're doing it wrong bro.
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Old 07-10-2011, 12:17 PM   #26
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Quote:
Originally Posted by falcon View Post
350bhp = approx 295whp. To do that on a 1.6l, you need something like a gt2871r and run 18-20psi.

350bhp = ~325rwhp
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Old 07-10-2011, 12:54 PM   #27
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Quote:
Originally Posted by ronniebiggs View Post
It shows an attachment for me. Does this thread have it attached?
got it now

and I'm not surprised you have such low power at that boost level.

9 degrees of advance FFS!
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Old 07-10-2011, 12:56 PM   #28
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I'm certainly not familiar with your setup, but your timing map could definitely use some work.



Take a look at: https://www.miataturbo.net/attachmen...1&d=1310313155, quite a few people post their timing maps. You can look for a similar setup and get an idea where your map is conservative. Also have to take fuel into consideration, not sure how UK fuel compares to US fuel.
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Old 07-10-2011, 02:20 PM   #29
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Fuel is 95 Ron to 98ron for super unleaded. I thought there would be scope to adjust. I'm slightly concerned that changing my settings to someone elses may imPact the reliability of my car. I know mine is running rich and I knew straight away that the guy didn't get anywhere near what it should be out if the car.

I will copy a setup of someone similar and see if there is any noticeable difference. I suppose it goes back to the original question on reliability on standard internals and making sure I don't over do the standard internals
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Old 07-10-2011, 02:51 PM   #30
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Are you registered on Mx5Nutz.com RonnieBiggs?

Recently we were talking about tuners in different parts of the country, I think you should try and find someone that knows what they are doing.

There isnt a huge amount of specialist around darlington (maybe some in Newcastle)

There are some if you venture down towards South Yorkshire.

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not sure how UK fuel compares to US fuel.
Well its about $1 per litre more expensive
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Old 07-10-2011, 03:37 PM   #31
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Yes I'm on nutz. I put a post on there ages ago about ms tuners in the north east. I would drive to south Yorkshire if it meant getting a good job done and going an extra 100 bhp.
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Old 07-10-2011, 03:41 PM   #32
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Re. fuel: I looked this up a while ago...

Our UK RON is roughly equivalent to US (MON?) fuel + 4.
So - our standard is 95, equivalent to US 91.
'Super unleaded' in the UK is usually 97 or 98 and is available nearly everywhere that 95 is available. So that's like your 94 in the US.
Tesco sell 99, and there are Tesco supermarkets all over the place. So that's like 95 in the US.

Super unleaded here is currently priced at 9.1 dollars per US gallon. You've got to REALLY like cars over here, ha.
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Old 07-10-2011, 04:34 PM   #33
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that timing map is crap
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Old 07-10-2011, 04:41 PM   #34
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it's more like ****.
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Old 07-10-2011, 05:39 PM   #35
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Quote:
Originally Posted by Braineack View Post
it's more like ****.
Yeah, except not where it matters (WOT+full boost). That's about what I would expect to see on pump gas with a T28.

Are you plumbed through a stock cat or something? Are you sure the dyno doesn't read low?

Your "tuner" is a hack, BTW. Never go back there.
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Old 07-10-2011, 06:11 PM   #36
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Quote:
Originally Posted by ronniebiggs View Post
Yes I'm on nutz. I put a post on there ages ago about ms tuners in the north east. I would drive to south Yorkshire if it meant getting a good job done and going an extra 100 bhp.
These people are meant to be very good with the MS. Bit of a hike for you as they're in the midlands. But if you want a good job might be worth the trip.

http://baileyperformance.co.uk/
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Old 07-10-2011, 06:39 PM   #37
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You'll find 20bhp in the tune, not 100. There are other issues in your setup, or that dyno reads low.
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Old 07-10-2011, 07:54 PM   #38
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I've gone onto cops now and at some point I'm sure I will figure out my ebc problem so that should be working. This along with trying to improve the tables will hopefully get me some decent power increases. But if I only gain 20bhp that's still only 260bhp running 17psi on a t28 turbo. No cat fitted. Any other suggestions?

Obviously first sort tables, then ebc
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Old 07-10-2011, 07:58 PM   #39
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Go take your money back from the tuner.. Maybe punch his face too..
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Old 07-10-2011, 08:11 PM   #40
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What are the turbo specs? The old T28s were just 2560Rs, weren't they? Big difference between an old T28 and a more recent aftermarket GT2860RS/2871R.

What do stock Miatas make on that dyno?
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