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Old 01-18-2021, 02:34 AM   #1
WRX_mattb
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Default Questions on finishing up my build

So my STi has been built for a little over a year now and has been awesome! Currently sitting at 450whp with id1050ís and aem 340lph pump. Here is a list of my current build before I get into my questions so everyone knows and isnít wondering.

2012 STi
-outfront v4 closed deck
-Manley platinum forged pistons
-Manley I beam turbo tuff rods
-new sti crank
-acl main and rod bearings
-arp 1/2 inch head studs
-kelford 272 cams
-super tech valvetrain
-killerb pick up
-killerb pan and baffle
-iag tgv deletes
-iag v2 fuel rails
-turboxs rotated turbo kit with Garrett gtx3582
-invidia q300 catback
-act xtreme clutch kit
-iag aos
-turboxs fmic

Pretty sure thatís about it. Iím sure Iím missing some small things. The car was built by Andrewtech. I have been talking with them for plans for make 600+ whp and have started compiling parts. I have been in touch with Andrewtech about my plans and they are saying 650-700whp on e85.

But a couple questions came to mind this weekend that I canít get out of my head and figured Iíd ask here to get peoples input. I do plan on calling ata this week to get confirmation. But like seeing others opinions as well.

So as of now this is what we have came up with to finish up my build and get the power I want.
-killerb holy header
-id1700
-radium dual pump hanger with dual 450 pumps
-Cobb flex fuel sensor
-Id f750 fuel filter
-Cobb 4 bar map sensor
-aeromotive a1000 FPR

Now what Iíve been thinking about the last day or so is adding a dampening crank pulley like the ATI or fuidampr. Is this needed for a 650(ish)whp build?

Also I am still running stock engine mounts. Iím looking at the torque solutions mounts thinking that I better upgrade those while Iím there as well. Iím not opposed to running solid mounts if needed. What would you guys suggest? Something the like torque solutions polyurethane mounts, or solid, and why?

Thanks for the input!
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Old 01-18-2021, 08:18 AM   #2
BlackFighter
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Building a closed deck myself by TiC for 500whp and was told to use a brand new oem pully or aftermarket like fuidampr. Not sure about solid or not for eng mounts myself yet but deff anything over stock.

How did the turboxs rotated kit fit?

Last edited by BlackFighter; 01-18-2021 at 09:25 AM.
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Old 01-18-2021, 08:50 AM   #3
snow_bound26
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Built engine or stock, something like Fluidampr or an ATI crank pulley are good options. Been using Fluidampr for several years now and I noticed a difference in how smooth the engine felt. Had a GS lightweight pulley before that and won't go back to any of the lightweight pulleys again.
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Old 01-18-2021, 09:12 AM   #4
KillerBMotorsport
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As others have said, a dampener is a great idea on a build like this.

Our header will broaden the power curve and add ultimate power as well. It will wake things up for sure.

Double check the fueling for the ID1700s, we ran 2000s at that power level. With good supporting mods you should definitely be +650whp on E.

As an option to the dual pump hanger, check out Visconti's fuel pump setups. I've used them a couple of times now and I don't think I'll go with a dual pump setup again, just because this setup is pretty easy and seems to be rock steady reliable.

I like the urethane motor mounts. More tolerable on long drives IMO. Other parts look good too!
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Old 01-18-2021, 10:30 AM   #5
BlackFighter
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Quote:
As an option to the dual pump hanger, check out Visconti's fuel pump setups.
Are you using this in a stock fuel tank or a cell?
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Old 01-18-2021, 12:33 PM   #6
Scuby04STi
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If you are looking into engine mounts I highly recommend the Perrin mounts, the use a bolt rather than a stud so you can drop the engine onto the cradle and just slide it back into the trans. I pull my engine alone and not messing with the trans hight helps a LOT with making it quick and simple.
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Old 01-18-2021, 02:17 PM   #7
WRX_mattb
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Quote:
Originally Posted by BlackFighter View Post
Building a closed deck myself by TiC for 500whp and was told to use a brand new oem pully or aftermarket like fuidampr. Not sure about solid or not for eng mounts myself yet but deff anything over stock.

How did the turboxs rotated kit fit?
No issues with the turboxs kit!



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Old 01-18-2021, 02:47 PM   #8
BlackFighter
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Is this the kit?

https://www.furiouscustoms.com/turbo...ubaru-wrx-sti/

Is yours a 2 pcs uppipe?

Last edited by BlackFighter; 01-18-2021 at 02:52 PM.
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Old 01-18-2021, 02:52 PM   #9
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Originally Posted by BlackFighter View Post
That says 02-07. But looks similar. My external wastegate is plumbed back into the downpipe just like that.
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Old 01-18-2021, 03:06 PM   #10
WRX_mattb
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Quote:
Originally Posted by BlackFighter View Post
Is this the kit?

https://www.furiouscustoms.com/turbo...ubaru-wrx-sti/

Is yours a 2 pcs uppipe?
My uppipe is one piece.
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Old 01-18-2021, 03:08 PM   #11
WRX_mattb
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Quote:
Originally Posted by KillerBMotorsport View Post
As others have said, a dampener is a great idea on a build like this.

Our header will broaden the power curve and add ultimate power as well. It will wake things up for sure.

Double check the fueling for the ID1700s, we ran 2000s at that power level. With good supporting mods you should definitely be +650whp on E.

As an option to the dual pump hanger, check out Visconti's fuel pump setups. I've used them a couple of times now and I don't think I'll go with a dual pump setup again, just because this setup is pretty easy and seems to be rock steady reliable.

I like the urethane motor mounts. More tolerable on long drives IMO. Other parts look good too!
Me and my shop/tuner were discussing the Visconti basket with the 525 hellcat pump. They are more comfortable with radium dual hanger and dual walbro 450ís. They install them all the time and will give me head room with my pumps for more power on the future if I want it.
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Old 01-18-2021, 08:32 PM   #12
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Quote:
Originally Posted by WRX_mattb View Post
Me and my shop/tuner were discussing the Visconti basket with the 525 hellcat pump. They are more comfortable with radium dual hanger and dual walbro 450's. They install them all the time and will give me head room with my pumps for more power on the future if I want it.
I currently have 45,000 miles on my AEM in-tank pump and dual Radium 450 Walbros with surge tank. Rock solid reliability

GroupN mounts are great, work well for me from 500-800whp
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Old 01-19-2021, 03:15 PM   #13
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Here is another question for you guys. Ive been wanting the killer b holy header since it came out and has been a part of my build plan forever. However, Ive read a few threads and things on the internet about ETSs v2 manifold actually making more power. What is everyones thoughts on the new ets vs killer b?

In my head Im leaning hard killer b. The holy header has been proven time and time again. Not to mention killer b uses 321 stainless compared to ets using 304.

Thoughts?
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Old 01-19-2021, 04:40 PM   #14
Scuby04STi
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Quote:
Originally Posted by WRX_mattb View Post
Here is another question for you guys. Ive been wanting the killer b holy header since it came out and has been a part of my build plan forever. However, Ive read a few threads and things on the internet about ETSs v2 manifold actually making more power. What is everyones thoughts on the new ets vs killer b?

In my head Im leaning hard killer b. The holy header has been proven time and time again. Not to mention killer b uses 321 stainless compared to ets using 304.

Thoughts?
From what user posted in proven power the peak looks like a wash and the ETS picked up slightly quicker. I wasn't there so have no clue how similar the pulls where.

I have helped test a few products and when it involves a dyno the amount of effort to have the same temp, humidity, header temp, ect was a LOT of work and I don't see many people show that they go to those lengths in customer reviews. Just something to keep in mind.
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Old 01-19-2021, 08:10 PM   #15
KillerBMotorsport
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Quote:
Originally Posted by BlackFighter View Post
Are you using this in a stock fuel tank or a cell?
Stock VA basket. never had an issue and surprisingly quiet.

Quote:
Originally Posted by WRX_mattb View Post
In my head Im leaning hard killer b.
If course I'm biased, but you won't be disappointed

If you have questions, let me know, I'm the guy who designed them.
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Old 01-19-2021, 09:40 PM   #16
user1029
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HTA86 E85 Kel272s Cos IM

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Quote:
Originally Posted by WRX_mattb View Post
Here is another question for you guys. Ive been wanting the killer b holy header since it came out and has been a part of my build plan forever. However, Ive read a few threads and things on the internet about ETSs v2 manifold actually making more power. What is everyones thoughts on the new ets vs killer b?

In my head Im leaning hard killer b. The holy header has been proven time and time again. Not to mention killer b uses 321 stainless compared to ets using 304.

Thoughts?
https://forums.nasioc.com/forums/sho....php?t=2930411
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Old 01-19-2021, 11:59 PM   #17
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Quote:
Originally Posted by user1029 View Post
No If its unclear how the data was collected.

If asked what one to give me as a gift KB all day, its got more track time and that shows structural integrity.

I don't run either header (neither is going to add enough to what I have to make a significant change), I just know most people don't realize your car makes different whp nearly every pull (some more then others). With the same tune and PARTS my car has shown to make passes between 118-123 mph (92 tune) mostly on weather. It has never made the same pull twice in a row on a dyno with no change without keeping everything the same (I mean actually the same. Not one pull then another right after). I live in Oregon so I do see a 55* to 100* swing on ambient temps when at the track throughout the year. But the point is that without a LOT of data a comparison is useless.
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Old 01-20-2021, 01:09 AM   #18
Bariga
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don't get that garbage regulator go with Fore, if you going to daily on pump gas the injectors are too big, also get radium dual brushless pump kit much more efficient pumps and wont heat up your fuel, and for the cam make sure you delete your AVCS because if AVCS freaks out a bit "and it will" you going to bend your valves, so right there deleting AVCS you will loose about 60-80 trq down low.
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Old 01-20-2021, 10:36 AM   #19
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Quote:
Originally Posted by Bariga View Post
don't get that garbage regulator go with Fore, if you going to daily on pump gas the injectors are too big
Hm, not sure about "garbage", but I would go with a fuelab regulator and FIC 1650's...
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Old 01-20-2021, 07:08 PM   #20
BlackFighter
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"don't get that garbage regulator*"

Why would you think that aeromotive is garbage? Any issues you had with them? Aeromotive have been used on Subarus for years with no major issues as of what I know.
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Old 01-20-2021, 07:57 PM   #21
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Quote:
Originally Posted by BlackFighter View Post
"don't get that garbage regulator*"

Why would you think that aeromotive is garbage? Any issues you had with them? Aeromotive have been used on Subarus for years with no major issues as of what I know.
I was wondering the same thing
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Old 01-20-2021, 11:22 PM   #22
user1029
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Iíve been running an aeromotive FPR for 140,000 miles. Iíve been daily driving the car with 2000cc injectors for 140,000 miles without any problems. Disable dual AVCS? I love the low end torque itís given me for 165,000 miles
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Old 01-21-2021, 03:43 PM   #23
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Originally Posted by user1029 View Post
Iíve been running an aeromotive FPR for 140,000 miles. Iíve been daily driving the car with 2000cc injectors for 140,000 miles without any problems. Disable dual AVCS? I love the low end torque itís given me for 165,000 miles
Agreed, no real reason to over complicate things. Aeromotive fpr and ID2k's here. No complaints. Running a Walbro 535 AND AVCS?? I must be doing everything wrong, but at least my valves are straight for now.
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Old 01-22-2021, 12:20 AM   #24
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I havent heard anything bad about the aeromotive FPR. Its what my tuner recommends. And at the end of the day he is the one tuning and knows what works. So Im comfortable with it.
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Old 01-22-2021, 12:23 AM   #25
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Quote:
Originally Posted by KillerBMotorsport View Post
If course I'm biased, but you won't be disappointed

If you have questions, let me know, I'm the guy who designed them.
I have decided to stick with the your holy header. Love killerb stuff. Already running your pick up, baffle, and pan combo on my built motor.
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