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Old 07-17-2012, 12:20 AM   #3701
mrxr250rider
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The one hill in particular is a long steep grade. Start off at 1st from the bottom and work my way up to about 50plus. Hard to do without boosting and I find it annoying. I try to stay out of boost as much as possible when crusing around. I adverage 22-23 and highway is 25-27 for mpg.
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Last edited by mrxr250rider; 07-17-2012 at 12:30 AM.
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Old 07-17-2012, 12:47 AM   #3702
Geek Guy
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Can any fellow v7 STi 207 owners give me *definitive* answers on what coils they are running that came with their motor?

Are they running FK0186 or FK0140 coils?

Please reply promptly - need to know if I need to source new coils prior to my tuning session in a week.

Thanks!
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Old 07-17-2012, 08:24 AM   #3703
mrxr250rider
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Black coils from an ej205 are the same. I bought a set of grey ej257 coils and switched the boots from my old coils(257 boots are longer). It works flawless.
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Old 07-17-2012, 12:15 PM   #3704
Mosting3
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Its true about VF30, i got full spool at 3800!! even i think its from AVCS! fixed my timing belt issue and the full spool is nearly at 3750.
Am installing ATP 3071 with new HKS headers, and bigger downpipe and 1000cc injectors, will report the results in a month enshalla.
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Old 07-17-2012, 01:02 PM   #3705
Clark Turner
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Its a 2.0 motor. It will never have low end power. Rev the crap out of it and stop lugging the thing around town

C
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Old 07-17-2012, 01:10 PM   #3706
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Quote:
Originally Posted by Clark Turner
Its a 2.0 motor. It will never have low end power. Rev the crap out of it and stop lugging the thing around town

C
Seriously people think about it...

Ej205 you spool at 3500-4k and rev to 7k

Ej207 you spool at 3500-4k and rev to 8k-8500...

The 207 is the opposite of the 257, no low end but plenty of highend. The 205 is well do what ya gotta do to be as efficent as possible
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Old 07-17-2012, 02:27 PM   #3707
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Quote:
Originally Posted by mrxr250rider View Post
Black coils from an ej205 are the same. I bought a set of grey ej257 coils and switched the boots from my old coils(257 boots are longer). It works flawless.
The dwell is different between the 2.0L and 2.5L coils.
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Old 07-17-2012, 03:41 PM   #3708
WhiteBgeye02
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Quote:
Originally Posted by Clark Turner View Post
Its a 2.0 motor. It will never have low end power. Rev the crap out of it and stop lugging the thing around town

C
AGREED you can tune it for a bit more cruising power but if your at a dam stop and need to get up to 50 up the hill then your going to go into boost or have to drive it like a granny. i personally shift at 3000-3500 rpms all around town. maybe a bit higher in fourth getting onto the highway so the car doesnt have to do any work in fifth to continue to accelerate up to speed.

as I mentioned already get a ej257 if you want torque to get u up the hill w/o going into positive pressure. even then whats the fun of that. the non turbo 2.5 is kinda fun for around town if you want to be efficient on gas and have plenty of torque as well. dont expect huge acceleration though lol
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Old 07-17-2012, 03:42 PM   #3709
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Quote:
Originally Posted by scby rex View Post
This may be a dumb question in here, but wheres a GOOD place to find a bare 207? I really just need a good pair of block halves.
search the for sale section for blown ej207's or contact a vendor and maybe they can help you find one or get one sent over. no idea how the cylinder condition might be though since it could have been sitting...
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Old 07-17-2012, 03:58 PM   #3710
mrxr250rider
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Quote:
Originally Posted by Fierysun

The dwell is different between the 2.0L and 2.5L coils.
Didn't cause any issues for me. I was retuned a month later for more boost anyways. But yeah guys you have a point. I'm just expecting too much out of my 2.0l
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Old 07-17-2012, 04:05 PM   #3711
scby rex
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Outfront Motorsports seems to be the only place that is reputable enough.
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Old 07-17-2012, 04:16 PM   #3712
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Quote:
Originally Posted by scby rex View Post
Outfront Motorsports seems to be the only place that is reputable enough.
oh well how much they want for a bare block these days?
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Old 07-17-2012, 04:33 PM   #3713
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i could care less about driving up a hill lol
i manage just fine by doing something so basic called a downshift :P
i like the high reving factor of the motor and love how it sounds and feels in its sweet spot rpm's
just trying to improve responsiveness and eliminate turbo lag to have a more fun feeling car and for more power coming out of corners
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Old 07-17-2012, 04:39 PM   #3714
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Quote:
Originally Posted by scby rex View Post
Outfront Motorsports seems to be the only place that is reputable enough.
I've been to Outfront and they have a ton of Subaru parts and engines in horrendous condition stacked on top of each other over 3 feet high. You'll want to get pic's of the part you wish to buy from them before hand. Otherwise, who knows what you'll be getting in the end.
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Old 07-17-2012, 07:00 PM   #3715
mrxr250rider
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Quote:
Originally Posted by mattrubywrx
i could care less about driving up a hill lol
i manage just fine by doing something so basic called a downshift :P
i like the high reving factor of the motor and love how it sounds and feels in its sweet spot rpm's
just trying to improve responsiveness and eliminate turbo lag to have a more fun feeling car and for more power coming out of corners
That would def be nice. Look into turbos and see which one will spool fast and give you 350+whp. Get it done and post results! Only other thing that would help would be lower gearing or a 6spd to make it easier to get to the sweet spot.
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Old 07-17-2012, 07:54 PM   #3716
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spool is relative. a 6mt will rev the engine faster and hit into the sweet spot faster but hit peak boost later than that of a 5mt. the engine is loaded less with the 6mt and thus it can rev faster and the exh gas velocity cant overcome the fast revs as fast as the 5mt in the same car. the 6mt would be better for autox though. 5mt esp built ones are great for drags. They was a reason they put 3 and 4 speed trans in those old cars. they had the power to pull those gears and the longer they are in the gear the faster they will be going when entering the next gear.

i understand this all started w/ reducing turbo lag but it kinda went two different ways i guess. reduce turbo lag by getting a ebcs! reduce acceleration in the low end for said autox turn exits by getting a 6mt. if you want to accelerate in a single gear and load the engine up good for a long time get a 5mt.
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Old 07-18-2012, 11:20 AM   #3717
mattrubywrx
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thanks for all the help and suggestions guys, does anyone have any recommendations based on first hand experience as to which ebcs to run and or good turbo upgrade options for my desired result? (350whp with minimal turbo lag)
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Old 07-18-2012, 01:01 PM   #3718
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Garret GTX3071 is probably the best option for a v7 v8 207 from what ive seen. I think most people who tune 207s recommend that or the gtx3076 for the 207
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Old 07-18-2012, 03:06 PM   #3719
mrxr250rider
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Yup that's what clark reccomended.
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Old 07-18-2012, 03:17 PM   #3720
todeswalzer
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Hey guys. Doing my research on jdm swaps now as I have a blown up usdm 05 wrx engine since Sunday. My car already has an 05 usdm sti drive train, and im running a blouch evo III 16g, ewg, pnp exhaust and intake manifolds...tgv deletes..

I have a ton of other mods to the car but these are the most pertinent to me at the moment.

does anyone have suggestions as to what route I should go? I'm looking at v8/v9 spec c engines. I've read the cam profiles are different.. just haven't found the differences yet, I'm more looking for the easiest plug and play option for an 05 wrx (concerned with ecu mostly)

My car is still dbc and I read about the NPS issues but my 05 sti 6 speed should be fine and match up with a jdm ecu correct?

I know about the iap plug n play avcs harnesses.

Also what power level is a stock spec-c engine good for? ~400whp? 450? Is it capable of handling a well put together 30r setup? Or is it gunna blow a piston/rod like a stock ej257 would? I could sell my current eiii 16g setup and the twin scroll setup and go small rotated.

I know this information is all in this thread somewhere but the phone app shows 372 pages and has an aweful search function. Any help or specific links/threads (that arnt 400 pages) to make my searching easier would be awesome!

Last edited by todeswalzer; 07-18-2012 at 04:24 PM.
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Old 07-18-2012, 04:26 PM   #3721
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Quote:
Originally Posted by mrxr250rider View Post
Yup that's what clark reccomended.
Unless i'm mistaken, the one that Clark often raves about is the stock location ATP 3071R.
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Old 07-18-2012, 04:29 PM   #3722
WhiteBgeye02
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well if you want to save 100 bucks hit me up for the avcs harness kit. i got three made up right now for sale. they had buyers so i bought the wire to make them and then the three guys disappeared. kinda usual **** for nasioc so i should have known. from what i read 400whp is a good limiting factor. over that on stock engines and your asking for something to go wrong anyways.

a engines well being relies in the maintinence** and a good quality e tune from phatbotti tuning or reputable local tuner. someone you can find talked about on this site or iwsti and no one has something bad to say about them. after that its luck of the draw since they are used engines and it could have been run with a huge turbo before you got it. put back to stock and then the car crashed. parted out. you would never know since most vendors do not check compression.

the evo3 will provide more top end flow over the vf36/37 that your engine will come with. might as well sell the TS setup since you can make like 1200 bucks easy on the turbo and headers/up pipe alone on here. turbo options are nearly unlimited for stock location single scroll subaru style turbo's. the only twin scroll turbo i know of that is popular in the US is the blouch 1.5xtr which retails for 1800 dollars.
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Old 07-18-2012, 04:34 PM   #3723
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Thanks for the info.

And yup I ran a protune from efi logics for about 2 and a half years on the ej205 threshold of 300whp before i went kaboom. Some drag trips, plenty of auto x, and general everyday wear and tear. My engine popped because I went to pass someone while running 91 octane on a 93 octane tune. Oh well.

After reading up it seems the only difference between ej205 and ej207s is the case being semi vs open.....rods piston and crank are the same, how is this able to handle more HP than a dumpy 02-05 ej205 with the same bottom end? There has to be a bigger difference
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Old 07-18-2012, 04:36 PM   #3724
WhiteBgeye02
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that will happen^ sucks but now you get to have the fun ej subaru engine!
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Old 07-18-2012, 04:41 PM   #3725
mrxr250rider
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Go v7 single scroll. Forged and should beable to handle plenty of power. My 05 wrx is v7 swapped. You can use your current turbo or the vf30 or 34 it comes with. Whichever would be better.
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