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      12-08-2017, 11:51 AM   #23
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Quote:
Originally Posted by SeanWRT View Post
It's been a while since I last shared my tuning progress. proTUNING Freaks and Halim@HCP stayed with me for the past few months. Thru tons of datalogs, they dialed up and dialed back, did flat load and made progressive boost. We had map that does 19psi at 7000rpm with acceptable timing. We also tried 16psi flat map that looks gonna last forever on road course. On the other side of planet, they've done all a tuner can possibly do and more. Nothing short of amazing customer service!

I very much enjoy my newest one which best serves my need. It's smooth and strong and is as far as my hardware and octane allows. I think this is going to put down strong number on dyno

BTW, ambient temp is now 50F, boost would be 1~1.5psi higher in summer (90F).
Congrats Sean cant wait to see your results.
What gear are these screenshots?
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      12-08-2017, 01:49 PM   #24
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Quote:
Originally Posted by SeanWRT View Post
It's been a while since I last shared my tuning progress. proTUNING Freaks and Halim@HCP stayed with me for the past few months. Thru tons of datalogs, they dialed up and dialed back, did flat load and made progressive boost. We had map that does 19psi at 7000rpm with acceptable timing. We also tried 16psi flat map that looks gonna last forever on road course. On the other side of planet, they've done all a tuner can possibly do and more. Nothing short of amazing customer service!

I very much enjoy my newest one which best serves my need. It's smooth and strong and is as far as my hardware and octane allows. I think this is going to put down strong number on dyno

BTW, ambient temp is now 50F, boost would be 1~1.5psi higher in summer (90F).
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      12-08-2017, 06:53 PM   #25
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Quote:
Originally Posted by FSociety View Post
Quote:
Originally Posted by SeanWRT View Post
It's been a while since I last shared my tuning progress. proTUNING Freaks and Halim@HCP stayed with me for the past few months. Thru tons of datalogs, they dialed up and dialed back, did flat load and made progressive boost. We had map that does 19psi at 7000rpm with acceptable timing. We also tried 16psi flat map that looks gonna last forever on road course. On the other side of planet, they've done all a tuner can possibly do and more. Nothing short of amazing customer service!

I very much enjoy my newest one which best serves my need. It's smooth and strong and is as far as my hardware and octane allows. I think this is going to put down strong number on dyno

BTW, ambient temp is now 50F, boost would be 1~1.5psi higher in summer (90F).
Congrats Sean cant wait to see your results.
What gear are these screenshots?
On 3th. I noticed no difference in power by gear.
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      01-06-2018, 01:17 AM   #26
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Guys I posted the dyno result on here.

http://f87.bimmerpost.com/forums/sho....php?t=1454381
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      04-03-2018, 12:09 AM   #27
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Is it your stock M2 turbo on ebay?
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      04-03-2018, 06:59 PM   #28
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SeanWRT

Is it your stock M2 turbo on ebay?
No, I keep all the stock parts.
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      04-04-2018, 04:25 PM   #29
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Quote:
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No, I keep all the stock parts.
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      03-23-2021, 01:22 PM   #30
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Seriously considering this upgrade path for my 17' M2.

A few questions...how much power do you think the stock downpipe/catalytic converter rob from this power band? Would it be seen as a requirement to use a high flow cat?

I'm running CA 91 octane as well, so I know I'm already limited but everything is relative. That said, I don't want to go through the hassle of upgrading the fueling system and want to keep this simple i.e. no meth, upgraded HPFP, PI

Thanks for being so detailed with your experiences.

-Mark
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      03-23-2021, 01:43 PM   #31
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Quote:
Originally Posted by makeitbetter View Post
Seriously considering this upgrade path for my 17' M2.



I'm running CA 91 octane as well, so I know I'm already limited but everything is relative. That said, I don't want to go through the hassle of upgrading the fueling system and want to keep this simple i.e. no meth, upgraded HPFP, PI


-Mark
I felt similarly to you as far as the fuel system goes. With the stock fuel system you're limited by octane. The best thing to do is have a switchable map like ECUTEC offers where one map is for normal pump gas and one map is for pump gas with Boostane. That way you don't have to run Boostane in every tank if you don't want to.
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      03-25-2021, 08:05 PM   #32
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Quote:
Originally Posted by cecaa850 View Post
I felt similarly to you as far as the fuel system goes. With the stock fuel system you're limited by octane. The best thing to do is have a switchable map like ECUTEC offers where one map is for normal pump gas and one map is for pump gas with Boostane. That way you don't have to run Boostane in every tank if you don't want to.
Thanks - I was doing some research on the ECUTEC and looks like a solid solution. Appreciate the help.
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      03-25-2021, 10:41 PM   #33
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Quote:
Originally Posted by makeitbetter View Post
Seriously considering this upgrade path for my 17' M2.

A few questions...how much power do you think the stock downpipe/catalytic converter rob from this power band? Would it be seen as a requirement to use a high flow cat?

I'm running CA 91 octane as well, so I know I'm already limited but everything is relative. That said, I don't want to go through the hassle of upgrading the fueling system and want to keep this simple i.e. no meth, upgraded HPFP, PI

Thanks for being so detailed with your experiences.

-Mark
Hi Mark,

Easy a little bit. CA 91 can't max out stock turbo even if you run rich with bigger pump.

You will want to reconsider the turbo upgrade idea.

Also the stock dp holds up well up to 17-18psi up top (however high boost down low doesn't matter). Stock is good actually, power wise.

However if you push hard (don't think any kind of street drive or even spiritual B road is pushing hard), you need dp for heat dissipation.

Sean
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      03-26-2021, 08:18 AM   #34
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Quote:
Originally Posted by makeitbetter View Post
Thanks - I was doing some research on the ECUTEC and looks like a solid solution. Appreciate the help.
Another benefit of going with them is that you'll have someone looking at your logs on pump fuel to make sure that you don't have any knocking issues.
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      05-23-2022, 11:24 PM   #35
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Quote:
Originally Posted by SeanWRT View Post
Hi Mark,

Easy a little bit. CA 91 can't max out stock turbo even if you run rich with bigger pump.

You will want to reconsider the turbo upgrade idea.

Also the stock dp holds up well up to 17-18psi up top (however high boost down low doesn't matter). Stock is good actually, power wise.

However if you push hard (don't think any kind of street drive or even spiritual B road is pushing hard), you need dp for heat dissipation.

Sean
Hi Sean, Im considering upgrading to the dinan/carbahn stg1 turbo. I do some track days and currently have CP/bigger intercooler, turbo inlet pipe and a catback exhaust. Im not looking for a whole lot more power I just want to have power all the way to redline and maybe make around 400whp. I'd rather not do a hpfp or additional fueling. I do have to use CA91 gas which kind of sucks but i will be getting a custom tune through ECUTEK or BM3. What guidance can you provide me for my build.
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      05-24-2022, 03:06 AM   #36
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Quote:
Originally Posted by GeraldM2 View Post
Quote:
Originally Posted by SeanWRT View Post
Hi Mark,

Easy a little bit. CA 91 can't max out stock turbo even if you run rich with bigger pump.

You will want to reconsider the turbo upgrade idea.

Also the stock dp holds up well up to 17-18psi up top (however high boost down low doesn't matter). Stock is good actually, power wise.

However if you push hard (don't think any kind of street drive or even spiritual B road is pushing hard), you need dp for heat dissipation.

Sean
Hi Sean, Im considering upgrading to the dinan/carbahn stg1 turbo. I do some track days and currently have CP/bigger intercooler, turbo inlet pipe and a catback exhaust. Im not looking for a whole lot more power I just want to have power all the way to redline and maybe make around 400whp. I'd rather not do a hpfp or additional fueling. I do have to use CA91 gas which kind of sucks but i will be getting a custom tune through ECUTEK or BM3. What guidance can you provide me for my build.
First, define 400whp. Let's benchmark stock as 340whp, that's 60whp of gain you're looking at.

Without Ethanol or meth, it would be difficult.

FBO PS2 can achieve that peak power, at too much cost of low end for just 400whp. Alternatively TTE460 is good and stock responsive, literally meeting the specification.

However, at 400whp, it's really the octane that's limiting the upper end. The turbo seems to work fine there.

I'd stick to stock and make a healthy 370-380.
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      06-08-2022, 07:43 PM   #37
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Quote:
Originally Posted by SeanWRT View Post
First, define 400whp. Let's benchmark stock as 340whp, that's 60whp of gain you're looking at.

Without Ethanol or meth, it would be difficult.

FBO PS2 can achieve that peak power, at too much cost of low end for just 400whp. Alternatively TTE460 is good and stock responsive, literally meeting the specification.

However, at 400whp, it's really the octane that's limiting the upper end. The turbo seems to work fine there.

I'd stick to stock and make a healthy 370-380.
Is it possible to still have top end power on a stock turbo? Im looking for something similar to the dyno sheets you posted in other threads. Around 380-400 hp but significantly more area under the curve. I would consider ethanol and/or meth if the car became a weekend only situation so long as it is reliable.
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      07-02-2022, 04:43 AM   #38
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