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Old 05-15-2018, 09:10 AM   #626
Eli_303
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Member#: 482725
Join Date: Feb 2018
Chapter/Region: RMIC
Location: Denver, Co
Vehicle:
2004 Impreza Wrx
Silver

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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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Member#: 490021
Join Date: Aug 2018
Location: Bend, OR
Vehicle:
2018 STI
WRB

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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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Member#: 490499
Join Date: Aug 2018
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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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Member#: 488749
Join Date: Jul 2018
Location: WA
Vehicle:
05 STi

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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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Member#: 493017
Join Date: Oct 2018
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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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Member#: 493909
Join Date: Nov 2018
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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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Member#: 462387
Join Date: Feb 2017
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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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