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Old 05-15-2018, 09:10 AM   #626
Eli_303
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Thanks for the reply..
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Old 08-11-2018, 08:18 PM   #627
kchaquico
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Good read, thanks!
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Old 08-22-2018, 12:54 PM   #628
Keith Lafleur
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Default Newbie asking for help

Quote:
Originally Posted by Defiant Autospeed View Post
There are a lot of posts asking what it takes to hit a certain HP number, but almost none of them ever give the info we need to give good advice on this. There is almost never enough info, and a lot of misconceptions.



First thing you need to know is that there is no 100%, black and white, sure thing answer. All cars respond differently and what makes 300whp on one car, will only make 280 on another, and 320 on yet another. ON THE SAME DYNO.


Second thing you need to know is that all dynos read differently. So if your goal is 300whp on a dynapak, what you need to get there will be INCREDIBLY different than what you need to hit 300whp on a Mustang dyno.

Even when looking at the same type of dyno, some read lower and higher.

There is fully a 100whp difference between the highest and lowest reading dynos. So if your goal is 300whp on a Mustang, be prepared to shell out a LOT more money than if you want to hit 300whp on a dynapak. And again, even on the same model dyno, some read +/-15+whp.

Where you live makes a BIG difference, elevation severely changes power output, as does the quality of your local gas. Its a lot harder to hit a given hp level on California's 91 octane than on 93 elsewhere.


When are you doing this? In winter, 20 deg ambient temps on winter mix gas? Or in summer in 100deg temps on summer gas?


And most importantly, are you trying to make this power level at the WHEELS or at the CRANK. Take for instance an 04 STI. It makes 300hp. But only about 240hp at the WHEELS. (on an average dyno that is)



So, when you ask "what do I need to hit XXXhp" you need to give us the following information


1. HP at the WHEELS (whp) or hp at the CRANK (chp)?

2. What type of dyno are you going to be shooting for this number on?

3. If possible, tell us what shop it is. Someone may know how high or low that particular dyno reads.

4. Where do you live? If not a well known city, what is the elevation?

5. What kind of gas will you be using? (octane level)

6. Are you opposed to a FMIC? (this way we dont recommend one if you dont want it, or we DO recommend it if you DO want it and it would be beneficial to your setup/goals) (sp?)

Please note, that even with this info, while we can give you a good idea of what it will take, we cannot give you a 100% surefire recipe for making an exact number. You may make even up to 30hp more or less than your goal based on what we tell you.

However, with the above information, we can give you a pretty solid path to take to hit that goal.


But simply asking "I want XXXhp" will get you nowhere. You will get answers that on a given dyno will make WAY more or less than each other, and the cost difference between them will be huge.



The last thing to know, is that in general, people will give you answers based on an "average" reading dyno. Unless you directly state, "I want to make this power on THIS type of dyno"


Hopefully this helps some people out. I see these posts all the time, and the threads get confusing at best with the huge range of setups that people suggest.
Trying to get around 375 380 horsepower to the wheels I have put a bunch of stuff into it already including DW fuel pump, injector Dynamics 1050 injectors, GrimmSpeed top mount intercooler, GrimmSpeed electronic boost control solenoid, AEM cold air intake, tomie unequal length header with up pipe, nameless catted downpipe and full exhaust, 1 range colder spark plug and professionally tune on a Mustang dyno (ECS Tuning Connecticut) and got 313 horsepower to the wheels and 404 horsepower at the crank... .Does this sound about right can someone help me out do I need to upgrade the turbo and go to E85 to see that kind of power???
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Old 08-23-2018, 05:41 PM   #629
Chrisjdumas
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Quote:
Originally Posted by Keith Lafleur View Post
Trying to get around 375 380 horsepower to the wheels I have put a bunch of stuff into it already including DW fuel pump, injector Dynamics 1050 injectors, GrimmSpeed top mount intercooler, GrimmSpeed electronic boost control solenoid, AEM cold air intake, tomie unequal length header with up pipe, nameless catted downpipe and full exhaust, 1 range colder spark plug and professionally tune on a Mustang dyno (ECS Tuning Connecticut) and got 313 horsepower to the wheels and 404 horsepower at the crank... .Does this sound about right can someone help me out do I need to upgrade the turbo and go to E85 to see that kind of power???
In my opinion I would be considerate of the stock motor. I ran 362 wheel on a dyno dynamics on a conservative boost and timing tune and a bearing went... I would keep it in the low 300's until you can build the bottom end. After mine blew up I went all in but I used to think I was fine at 360 but I couldn't settle for a nice daily with 300 hp. I had a lot of similar parts as you have but I would be very careful testing the stock motor. You can find tons of threads about it. Some cars last a week at 300 and some last 50k miles on 400 hp. My personal experience was rod knock at 362/340 lol.
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Old 11-16-2018, 05:10 PM   #630
truexh
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Here is my #. Are they Low, High, or just about right?

MODS: ETS Turbo back exhaust, Tomei UEL Header, COBB Flex Fuel Kit, COBB Intake, Grimspeed EBCS, Cobb Fuel Pressure regulator, ID 1300 injectors, IAG AOS, AEM 320 fuel pump.

CAR: 18 WRX STI
Mustang Dynamometer
91 Octane: 286 WHP, 326 WTQ
E85: 321 WHP, 387 WTQ
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Old 11-27-2018, 02:26 AM   #631
Tmack2425
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My E60 2017 WRX Made 380WHP and 370Ftlb Torque.

Full mod list.
E-60 Tune
IAG EGR delete
Pernnin TGV delete
Grimspeed 3 EBC
Mishimoto FMIC
Cobb flex fuel kit
Dw65c fuel pump
Cobb Big SF CAI
3" high flow cat 1320 DP & Mid
STI transmission & Dif
DCCD pro controller
Brembo Brakes
Megan Racing rear control arms
Raceland coilovers
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Old 12-03-2018, 10:19 PM   #632
DinoMagic
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Quote:
Originally Posted by truexh View Post
Here is my #. Are they Low, High, or just about right?

MODS: ETS Turbo back exhaust, Tomei UEL Header, COBB Flex Fuel Kit, COBB Intake, Grimspeed EBCS, Cobb Fuel Pressure regulator, ID 1300 injectors, IAG AOS, AEM 320 fuel pump.

CAR: 18 WRX STI
Mustang Dynamometer
91 Octane: 286 WHP, 326 WTQ
E85: 321 WHP, 387 WTQ


Sounds just right .. mine was very similar with this setup and stock turbo. Did you get larger injectors for future potential?
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Old 12-13-2018, 03:19 PM   #633
Roczz
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my 06 wrx hit 345 whp with a conservative tune from IAG with:

Engine: Stock
Management: Cobb AP V2
Turbo: Blouch Dom3
IAG 44mm EWG kit with TIAL 44mm EWG
Injectors: ID 1000cc
Intake: KSTech 83mm MegaMAF
Boost Control: Grimmspeed EBCS
Spark Plugs: NGK 1-Step Colder
Exhaust: HKS Exhaust w/ INVIDIA Catless Downpipe
Intercooler: TurboXS FMIC
STi header setup with Grimmspeed high flow crossover
APS 3.0" Turbo Inlet
Turbosmart Dual Port BOV
Fuel Pump: Aeromotive 340lph
Other: Air Pump Deletes, TGV Deletes
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Old 12-28-2018, 08:15 PM   #634
DinoMagic
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Quote:
Originally Posted by Roczz View Post
my 06 wrx hit 345 whp with a conservative tune from IAG with:



Engine: Stock

Management: Cobb AP V2

Turbo: Blouch Dom3

IAG 44mm EWG kit with TIAL 44mm EWG

Injectors: ID 1000cc

Intake: KSTech 83mm MegaMAF

Boost Control: Grimmspeed EBCS

Spark Plugs: NGK 1-Step Colder

Exhaust: HKS Exhaust w/ INVIDIA Catless Downpipe

Intercooler: TurboXS FMIC

STi header setup with Grimmspeed high flow crossover

APS 3.0" Turbo Inlet

Turbosmart Dual Port BOV

Fuel Pump: Aeromotive 340lph

Other: Air Pump Deletes, TGV Deletes


How much boost are you running? Also why the Dom 3 vs the 1.5
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Old 01-12-2019, 03:30 PM   #635
Scrub_Consultant_Q
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Recently rebuilt my 08 WRX hatch with the following:
  • Manley pistons
  • Stock bore just rehoned
  • King bearings
  • Cobb AP V2
  • Cobb intake
  • Cobb intake tube to turbo
  • New VF52
  • 3in catless downpipe
  • Stock exhaust but not opposed to going to a quiet catback as i'm going for a 'sleeper' build

Still breaking her in and am planning on a tune @ Precision Tuning in NJ at 1k miles. My goal is 300awhp on 93 without sacrificing drivability as I will be dailying the car to and from work and using at a grocery getter.

Is 300 to the wheels with stock exhaust achievable without sacrificing reliability with the parts listed above? If not, what should I add for 300? Injectors? Fuel Pump?
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Old 01-15-2019, 01:08 PM   #636
Christiansti
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Default Dyno

Not sure what my local shop uses
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Old 01-15-2019, 02:57 PM   #637
Eli_303
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Silver

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I could be wrong but the stock exhaust has a bit of restriction in the muffler
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Old 01-15-2019, 04:55 PM   #638
Loyale93
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2012 Triumph 1050

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Quote:
Originally Posted by Christiansti View Post
Not sure what my local shop uses
Ok... Great...

Quote:
Originally Posted by Eli_303 View Post
I could be wrong but the stock exhaust has a bit of restriction in the muffler
No. It doesn't. Not at power levels below 400hp. Above that, maybe you could argue it does, but the stock muffler is fine. May not be ideal, but think about a Stage 2 setup from Cobb. They require a downpipe only, not a full exhaust. And that's getting close to the 400 crank hp number with an OTS tune.
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Old 01-15-2019, 06:09 PM   #639
Zcypot
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Quote:
Originally Posted by Loyale93 View Post
Ok... Great...



No. It doesn't. Not at power levels below 400hp. Above that, maybe you could argue it does, but the stock muffler is fine. May not be ideal, but think about a Stage 2 setup from Cobb. They require a downpipe only, not a full exhaust. And that's getting close to the 400 crank hp number with an OTS tune.
I had stock mufflers and it didnt seem to affect power when I was "stage 2"

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Old 01-15-2019, 06:44 PM   #640
Charlie-III
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I don't normally do turbo anything.

I will say.......

What is your altitude (high like Denver will yield lower numbers compared to sea level)?
What dyno? Some read higher or lower than others.
What is the calibration on THAT dyno? There are MANY things that can affect the final readings.
What is your fuel? Arizona, California and Nevada tend to suck (part of why COBB has ACN maps for their AP). Summer fuel vs. winter fuel (NY metro is an example) makes a difference.

To me, a dyno is fine for "before/after" mod runs. Basically, I had this, dyno said this, did that, dyno said that.
Compare to others (sorta) from the same dyno.
Do NOT compare to ANY other dyno in any other location.
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Old 02-13-2019, 02:48 PM   #641
dud3tt3
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Default I made 390whp/360wtq with my set up. I expected more?

Hey everyone,

I'm really just looking for some opinions. I recently finished my built motor and dyno tuned up in southern pa on a dyno jet. I only made 390whp/360twq and ran into some issues while tuning and wanted to know your thoughts.

Here's what I have:

Engine:

Built 2.7 Hydra by Element Tuning
100mm Manley pistons
Manley rods
GSC 272 Cams
Stock Crank
TGV Deletes
Super Tech Valvesprings
ARP Head studs
IAT Visconti
AEM 3.5 MAP Sensor
Grimmspeed 3 port EBC
Aeromotive Fuel Rails
Deatschwerks 340LPH Fuel Pump
Injector Dynamics 1050X (1065cc) Injectors
NGK Iridium Spark plugs
Speed Density on Cobb Access Port

Turbo smart BOV

Blouch 1.5 XT-R (Twinscroll)-IWG
3inch Inlet & 10cm hot side

Tomei Expreme Equal Length Headers & Up-pipe (Twinscroll)

Perrin FMIC

ACT Heavy Duty Street Performance Clutch
OEM Fly wheel

(I may be forgetting some things)

Located in Northern Va but tuned up at PSI Proformance in Lansdale PA.

Final Dyno pull on a Dynojet (Jan. 17, 2019)
4th gear 387whp/360tq @ 21PSI on 93 pump

When I first finished this project my goal was to break 400 to the wheels. I was confident with this set up to at least break 400whp and have torque right around the same, even on 93 pump. If I had to actually ballpark it, I expected to make around 420-430whp and 440-450tq.

Down the road, I do want to eventually go with a cobb flex fuel kit to have the ability to run E85, but it's not a necessity at this time.

While tuning we discovered that the IWG was opening up too soon. We also saw on that last pull that my clutch was starting to slip which pretty much concluded my dyno tune. Granted my clutch is relatively new, I have a friend who ran into this same issue with the same clutch. They are supposed to be rated 515tq to the crank, so I was quite surprised to see it not hold any more than 360 to the wheels.

"Wastegate duty cycles were mid 30's on hit to full boost (according to my tuner). The issue he ran into was he was 50-60% up and the turbo was tapering more than usual. If the spring was off it would have a slow PID to full boost. We had the opposite issue. The turbo was tapering more up top than usual, dropping power a tad even when hitting it with lots of WGDCs."

^(I know absolutely nothing when it comes to tuning so I don't fully understand what he's referring to in all of this tuning lingo.)

Now, knowing what I know, I have been contemplating converting to EWG's and knowing that I am twin scroll, I would need a dual ewg set up. It's rather a complex project to complete a dual ewg on a stock location turbo with this setup. A pretty penny is required (as usual with Subarus imo) to fabricate my current up pipe or have one completely fabricated from scratch to accommodate this. I also plan to invest (unfortunately) in yet another clutch that hopefully doesn't give out on me. I might just throw a 6puck disc in and call it a day, but I may also consider switching out to a lightweight flywheel as well.

Curious what are some of your opinions or thoughts on this and I'm open to suggestions on alternative solutions.

Thanks!

Last edited by dud3tt3; 02-13-2019 at 02:58 PM.
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Old 05-17-2019, 11:29 PM   #642
Nitrousspeed
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Chapter/Region: South East
Location: Atlanta, GA
Vehicle:
2019 STI
World Rally Blue

Default 2019 STI (337.2whp/378.6wtq)


2019 Subaru WRX STI
Modifications List:
- Cobb SF Intake
- APS Dual Vent Blow Off Valve
- GrimmSpeed EBCS
- Turbo XS Downpipe
- Turbo XS Test Pipe
- Remark Blue Tip Exhaust
- Cobb Accessport (V3)
- Protune <- Best thing ever!
- Dialed Mount Accessport Mount
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Old 05-20-2019, 02:01 PM   #643
nvtive_b
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2018 Subaru STI
Pure Red

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Love this build. looks solid! Makes me wanna start power modding mine!
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