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Old 08-23-2017, 01:33 AM   #1
Enviedsvt
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Default VF48+supporting mods on 2.0L

My 03 wagon is getting some love some with the addition of a VF48 supported with,

Tial 38mm EWG W/ GS up pipe
ID 1050X
perrin inlet
cobb maf inlet
cobb panel filter
walbro fuel pump
GS EBC
STI top mount
Cobb turboback exhaust

NOW, with the questions I am curious about to get people that have experience from the set up. Do I NEED a EWG set up with a VF48 on the 2.0? I know the VF series turbo's don't have the best iwg.
Also, Is it smart to keep the stock air intake box vs going with a cobb intake with the box

I only ask because my tuner has totally kept it up to me for the EWG for "safety" as well as the intake ( stock VS cobb)

MY goals are pretty conservative. It's my DD car that has 100k miles. looking to have it tuned to 17-18 psi

Thanks guys!
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Old 08-23-2017, 01:52 AM   #2
CarmelValleyWRX
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im running a vf48 on my 2005. stock exhaust with sti up pipe and shorty down pipe. i did port the exhaust housing on the the turbo though. no boost creep. runs strong.
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Old 08-24-2017, 01:38 AM   #3
jdm05
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I had a vf48 on my 2.0 with your typical upgrades and all. Was fun to drive just wanted more after a little bit like 2 years lol. You would be ok without ewg, and I had the oem intake box too. If have the money upgrade if like but I'd say you'd be ok keeping it oem. Motor ran strong too for me just wanted more so upgraded it all. Gl
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Old 08-24-2017, 02:15 AM   #4
hondaeater69
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vf wastegates are fine. doing an EWG at that power level is more for noise than anything. little extra noise for a lot more money. intake is pretty much a waste of money at that power level also. just my 2cents.
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Old 08-24-2017, 07:48 AM   #5
Titter
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Default VF48+supporting mods on 2.0L

do you plan on running E85?

if not, 1000cc injectors are WAY too big for a VF turbo on a 2.0L

an EWG at those power levels is not "needed" but getting one doesnt hurt either.
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Old 08-25-2017, 02:42 PM   #6
CarmelValleyWRX
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im running 550 cc on mine for gas. runs great and i still get 26-27 highway mileage. the vf48 is not a huge step up from td04 (although it is good fun) so most of the stock parts are fine other than injectors and fuel pump. im running an sti tMic but the stock one worked for a while. the only things on your list worth the money IMO are the EBCS, fuel pump, and TMIC. everything else is flash.
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Old 08-28-2017, 12:05 PM   #7
Enviedsvt
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Thanks for the opinions guys!!

Going to take your guy's advice as well as the tuner and back off too iwg, 565cc dark blue injectors (15' STI)

Thank you!!!
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Old 09-03-2017, 01:57 AM   #8
Enviedsvt
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Possibly changing my mind last minute before the install/dyno..

Anybody else install ewg with 565cc injectors? Or would I want more?
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Old 09-03-2017, 07:56 AM   #9
jon7009
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pink or blue top feed injectors are fine for a 2.0l and VF turbo.
id1000s aren't too big, but will be more than you need unless going e85. regardless of size of turbo or peak airflow, id1000s will operate just fine at idle and beyond up to max idc on pump gas, so having headroom isn't a problem, but id1000s new are about twice as expensive as used pinks.

ewg won't hurt your setup, but isn't necessary. VF turbo internal wastegates causing boost creep is more of a 2.5L issue.
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Old 09-03-2017, 12:57 PM   #10
Enviedsvt
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Quote:
Originally Posted by jon7009 View Post
pink or blue top feed injectors are fine for a 2.0l and VF turbo.
id1000s aren't too big, but will be more than you need unless going e85. regardless of size of turbo or peak airflow, id1000s will operate just fine at idle and beyond up to max idc on pump gas, so having headroom isn't a problem, but id1000s new are about twice as expensive as used pinks.

ewg won't hurt your setup, but isn't necessary. VF turbo internal wastegates causing boost creep is more of a 2.5L issue.
Yeah especially since I'm running stock intake and catted down pipe. I have id1050x and the ewg in my closet, but honestly thought about selling for $$. Trying to figure if iwg/dark blue injectors are as safe as ewg ID's..

Sounds like it is
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Old 09-04-2017, 04:08 PM   #11
CarmelValleyWRX
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Quote:
Originally Posted by Enviedsvt View Post
Thanks for the opinions guys!!

Going to take your guy's advice as well as the tuner and back off too iwg, 565cc dark blue injectors (15' STI)


Thank you!!!
the dark blue injectors should be from a 2006-2007 wrx. i think the sti has side feed. although it might have changed along the way and maybe you can use the 15' sti ones.


Quote:
Originally Posted by Enviedsvt View Post
Possibly changing my mind last minute before the install/dyno..

Anybody else install ewg with 565cc injectors? Or would I want more?
Quote:
Originally Posted by Enviedsvt View Post
Yeah especially since I'm running stock intake and catted down pipe. I have id1050x and the ewg in my closet, but honestly thought about selling for $$. Trying to figure if iwg/dark blue injectors are as safe as ewg ID's..

Sounds like it is
injector size and EWG/IWG are not related at all. injectors need to be sized to the power output/fuel type. EWG is used for some turbos that dont have an IWG or if you want to sound like a semi with a jake-brake for some reason.
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Old 09-04-2017, 10:24 PM   #12
mrsaturn7085
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Quote:
Originally Posted by CarmelValleyWRX View Post
the dark blue injectors should be from a 2006-2007 wrx. i think the sti has side feed. although it might have changed along the way and maybe you can use the 15' sti ones.
Literally all non-DI injectors from the 06+ WRX and 07+ STI are the same 565 cc dark blue models. This is true all the way out to 2018 models.

On a 2.0, you'll have a little room with a VF48 and 565 cc injectors but the 1000 cc ID units will also work fine. Changing injectors effectively means a re-tune, so you might as well just install the 1000 cc units now. The low pulse width data provided by ID will allow your tuner to linearize them better than the OEM injectors.
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Old 09-05-2017, 08:37 PM   #13
Enviedsvt
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Quote:
Originally Posted by mrsaturn7085 View Post
Literally all non-DI injectors from the 06+ WRX and 07+ STI are the same 565 cc dark blue models. This is true all the way out to 2018 models.

On a 2.0, you'll have a little room with a VF48 and 565 cc injectors but the 1000 cc ID units will also work fine. Changing injectors effectively means a re-tune, so you might as well just install the 1000 cc units now. The low pulse width data provided by ID will allow your tuner to linearize them better than the OEM injectors.
Good to know. Little room, you mean wgdc will be maxed out near higher psi conditions? If it's safer, I might as well install the ID's over the 565's. Need to get a iwg GS up pipe. Just thought I could get a few bucks back with the ID's and ewg up pipe kit resold. But, if it's truely safer then I can deal with that.
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Old 09-05-2017, 08:41 PM   #14
mrsaturn7085
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The injector duty will be above 90% with the 565 cc injectors in no time. I would highly recommend just using the 1000 cc injectors - there's absolutely no reason not to given the data ID provides.
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Old 09-09-2017, 12:43 PM   #15
Enviedsvt
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All parts are installed and will be getting a dyno tune today!! Will be updating with #'s to follow up with how well it responded to mods.
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Old 09-09-2017, 07:49 PM   #16
Enviedsvt
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Awesome, tuning didn't happen today.

During the pre dyno inspection, they did the smoke test and at 3lbs of pressure their was a constant leak on the passenger side valve cover gasket 😑.

Dyno rescheduled for end of October
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