TSM | 2013 STi w/ DOM 1.5 396whp/407wtq

8852 Views 22 Replies 11 Participants Last post by [email protected], Apr 8, 2015

[email protected]

Discussion Starter · Aug 27, 2013

5

Just though I'd share another one with you all! After discovering the #2 & #4 piston ring lands were toast, this customer decided to start over with a TSM SS1 short block and a few additional bolt-ons...

Numbers
Dyno: Dynojet
Tuner: Doug - TopSpeed Motorsports
Wheel HP: 396
Wheel TQ: 407
Ambient Temp: 75 F
Elevation: 978 ft
Fuel: 93 OCT

Car Info
Year: 2013 STi
Engine Management: Cobb AccessPORT
Turbo: Blouch DOM1.5 XT-R
Intercooler: ETS TMIC
Meth Kit: Snow Stage 2
Injectors: TSM 980cc
Intake/Inlet: Cobb SF w/ Airbox & Perrin Inlet
Headers: Tomei EL
Uppipe: Tomei
Downpipe: Invidia Catless
CBE: Invidia Q300
Other mods: TSM 340 LPH Fuel Pump, Grimmspeed EBCS

Pump Gas, no Meth:

Pump Gas w/ Meth:

See less See more

1 - 20 of 23 Posts

Skater28

· #2 · Aug 30, 2013

How is the overall power/performance compared to a single scroll turbo with compare able WHP & torque? I'm really interested in a twin scroll turbo set up.

[email protected]

Discussion Starter · #3 · Aug 30, 2013

Skater28 said:
How is the overall power/performance compared to a single scroll turbo with compare able WHP & torque? I'm really interested in a twin scroll turbo set up.

Are you thinking a twin scroll rotated setup or factory location?

If rotated, there's really only a handful of choices out there and you're going to want to run a pretty large turbo to make it worth it; I would say something GT35 or larger.

If factory location, a twin scroll DOM 1.5 really doesn't spool much, if any, quicker than a DOM 1.5 single scroll. Ultimately you will save yourself a good amount of money just going with the single scroll DOM 1.5 vs the twin scroll and have about the same spool and power.

altspacen

· #4 · Sep 4, 2013

Looks like you guys have done your homework with your AVCS to get that quick spool power. =]

[email protected]

Discussion Starter · #5 · Sep 5, 2013

altspacen said:
Looks like you guys have done your homework with your AVCS to get that quick spool power. =]

Doug may know a thing or two...

Reactions: 1

red2012STI

· #6 · Sep 15, 2013

The customer already had a "toasted cylinders 2 and 4" already? at what mileage did this happened? I mean, we are talking about a very new car.

My STI has 13000 miles is a 2012 and has been running on E-85 since 1800 miles..I guess it boils down to how lucky you are.

GA Scooby

· #7 · Sep 15, 2013

altspacen said:
Looks like you guys have done your homework with your AVCS to get that quick spool power. =]

Not very familiar with Topspeed are you? :lol:

altspacen

· #8 · Sep 15, 2013

GA Scooby said:
Not very familiar with Topspeed are you? :lol:

Not really, no. I'm 15 minutes from IAG so my research went into their shop.

Reactions: 1

GA Scooby

· #9 · Sep 15, 2013

altspacen said:
Not really, no. I'm 15 minutes from IAG so my research went into their shop.

They are equivalent in quality and superiority for pretty much every Subaru, GTR, Evo, Porsche, BMW, or exotic in the south eastern region. If you ever find yourself living in the region then you already know your shop. :tup:

Reactions: 2

kelleyperformance

· #10 · Sep 23, 2013

nice numbers! which turbo is that? i know the OE direct replacement Blouch setups come in a few different size compressors and housings...

GA Scooby

· #11 · Sep 23, 2013

kelleyperformance said:
nice numbers! which turbo is that? i know the OE direct replacement Blouch setups come in a few different size compressors and housings...

It's in the title and in the first post. Blouch Dom 1.5xtr

deviant1

· #12 · Sep 24, 2013

What size inlet and hotside?

[email protected]

Discussion Starter · #13 · Sep 25, 2013

deviant1 said:
What size inlet and hotside?

This particular car was the 2.4" inlet and the 10cm turbine housing.

red2012STI

· #14 · Sep 29, 2013

I will repeat the same question/comment that I did on page one over two weeks ago:

The customer already had a "toasted cylinders 2 and 4" already? at what mileage did this happened? I mean, we are talking about a very new car.

My STI has 13000 miles is a 2012 and has been running on E-85 since 1800 miles..I guess it boils down to how lucky you are.

[email protected]

Discussion Starter · #15 · Oct 1, 2013

red2012STI said:
I will repeat the same question/comment that I did on page one over two weeks ago:

The customer already had a "toasted cylinders 2 and 4" already? at what mileage did this happened? I mean, we are talking about a very new car.

My STI has 13000 miles is a 2012 and has been running on E-85 since 1800 miles..I guess it boils down to how lucky you are.

Not sure how I missed your last post - sorry about that, thanks for being a good sport about it...

This car had pretty low mileage when we discovered the piston ring land failure; I believe it was about 12,000 or so. The reason these ring lands fail is due to the tolerances on the ring gap being too tight from the factory so if/when the two ends of either ring touch each other it creates a lot of pressure between the top and bottom ring, causing the ring land to fail. The only problem is it's not an exact science which cars have this issue, some are good and some simply aren't. If you modify the car you may very well run in to this issue...

tmiller1201

· #16 · Oct 6, 2013

For this setup, if you were upgrading the stock block to handle the power increase, would you recommend anything besides forged pistons/rings?

altspacen

· #17 · Oct 6, 2013

I'd like to add on to that question, does the forged motor allow you to be more aggressive with your tune to extract more whp?

Ravenous

· #18 · Sep 25, 2014

Very nice. I would love to be right around these numbers.

Reactions: 1

[email protected]

Discussion Starter · #19 · Jan 15, 2015

tmiller1201 said:
For this setup, if you were upgrading the stock block to handle the power increase, would you recommend anything besides forged pistons/rings?

altspacen said:
I'd like to add on to that question, does the forged motor allow you to be more aggressive with your tune to extract more whp?

Not quite sure how I missed these from months ago... whoops!

For this setup, there isn't really a need for aftermarket rods - we've had cars make well over 450 wtq on factory rods with no issues so they are up to the task for sure.

Something like our TSM SS1 Shortblock would be what we typically do for this setup.

A built engine definitely allows you to run more boost which will make more power.

mofoSTI

· #20 · Jan 20, 2015

I plan on running a 260 exhaust cam and 258 intake cam from Tomei. I'm hoping to get the best spool possiable with low end and midrange power in mind. My next turbo will be the Dom 1.5 being that tsm has had such great success with them.

1 - 20 of 23 Posts

This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.