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Old 04-21-2011, 12:27 AM   #1501
chudlo
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Quote:
Originally Posted by MConte05 View Post
I'm getting 27 mpg on the hwy, 24-25 normally, and 20 if I am hammering it a lot.
How is this possible? Catless and tuned, I assume.
That's really good mileage. I don't think I even got 24mpg on the stock motor when I was catless.
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Old 04-21-2011, 12:49 AM   #1502
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A properly tuned V7 or V8 JDM 2.0 motor gets 28 to 30 on the highway with the 5mt trans. If you have the JDM 6mt, THen that will Drop way down to 20 to 22 range.

The mileage really depends on the tune as this JDM ECU keeps the engine in OPen loop ALOT more then the US version. If the tune is off, mileage REALLy suffers.

C
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Old 04-21-2011, 01:38 AM   #1503
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Quote:
Originally Posted by Clark Turner View Post
A properly tuned V7 or V8 JDM 2.0 motor gets 28 to 30 on the highway with the 5mt trans. If you have the JDM 6mt, THen that will Drop way down to 20 to 22 range.

The mileage really depends on the tune as this JDM ECU keeps the engine in OPen loop ALOT more then the US version. If the tune is off, mileage REALLy suffers.

C
Doh, forgot about the 5 speed! I have the JDM 6 speed and am not tuned really. A friend used open source to get the car to be happy on US 93 octane and remove the top speed limiter.
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Old 04-21-2011, 01:49 AM   #1504
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There you go...

C
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Old 04-21-2011, 10:08 AM   #1505
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Yep I have a 5MT with type RA gears for 1st through 3rd, stock 4th and 5th. High flow catted DP. Seems to be getting a solid 24 on my daily commute, but long road trips can easily get 27-28 depending on the driving conditions.
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Old 04-21-2011, 11:11 AM   #1506
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Quote:
Originally Posted by Clark Turner View Post
The valves are a big mistake in my opinion. Leave it all stock. There is no advantage of the valves.

Clean up the heads, Check everything out and use them. Same with short block. You can get some forged pistons while you are there. stock rods are fine but if you want, Get some decent rods as they are cheap. Stock bearings are fine.

400whp is low for that turbo and E85. 450 would be easy. 500 is doable.

In short, Clean up the heads, Pistons, rods, bearings, New oil pump, Belt,tensioner and all idlers. Slap her in and enjoy

C

What pistons and rods would you recommend Clark? I definitely want to do this right and appreciate your help!

Does anyone have there ej207 set up with the tall 5 speed ppg ratios? Im wondering as there is a local transmission with this set up for cheap. It probably takes forever to get into boost i would imagine?
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Old 04-21-2011, 02:11 PM   #1507
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I've an EJ205 02 Bugeye with a 05 USDM STI 6mt. The 5mt to 6mt was really not a huge difference MPG -wise. I think it was less than a 1mpg drop. The ratios on the JDM 6mt seem drastically tighter in 5th & 6th gear (http://spda-online.ca/modules/tinyco...ite/tc_28.html)

I'm installing an EJ207 V8 hoping for 25-27 mpg on the highway with a proper tune. Though it seems that I may have similar results comparing the USDM 5mt to 6mt with fuel economy on an EJ205, can anybody with experience comment on the EJ207 setup w/ the stock catted downpipe? I've searched, but without any luck.
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Old 04-21-2011, 05:07 PM   #1508
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Quote:
Originally Posted by Clark Turner View Post
A properly tuned V7 or V8 JDM 2.0 motor gets 28 to 30 on the highway with the 5mt trans. If you have the JDM 6mt, THen that will Drop way down to 20 to 22 range.

The mileage really depends on the tune as this JDM ECU keeps the engine in OPen loop ALOT more then the US version. If the tune is off, mileage REALLy suffers.

C
Quote:
Originally Posted by llamsn View Post
I've an EJ205 02 Bugeye with a 05 USDM STI 6mt. The 5mt to 6mt was really not a huge difference MPG -wise. I think it was less than a 1mpg drop. The ratios on the JDM 6mt seem drastically tighter in 5th & 6th gear (http://spda-online.ca/modules/tinyco...ite/tc_28.html)

I'm installing an EJ207 V8 hoping for 25-27 mpg on the highway with a proper tune. Though it seems that I may have similar results comparing the USDM 5mt to 6mt with fuel economy on an EJ205, can anybody with experience comment on the EJ207 setup w/ the stock catted downpipe? I've searched, but without any luck.
So with the information above, are you guys saying that I can get somewhere between 25-30 on the 207 and the USDM 6MT?

I haven't been able to tune yet for some certain things so I may ask my tuner about setting up a mpg map.
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Old 04-21-2011, 06:14 PM   #1509
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Quote:
Originally Posted by arco View Post
So with the information above, are you guys saying that I can get somewhere between 25-30 on the 207 and the USDM 6MT?

I haven't been able to tune yet for some certain things so I may ask my tuner about setting up a mpg map.

That's what I'm hoping for. My mileage dropped about 1 mpg doing 70-75 on the highway after swapping in a USDM 6mt. I want to say that I'm just over 3000 rpms at around 75 mph.
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Old 04-22-2011, 01:44 AM   #1510
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w/my EJ205, I averaged 22-24 mpg. w/my 207, I'm averaging around 19 mpg.
Most of miles are highway miles, but I spend more time driving regular local roads.
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Old 04-22-2011, 02:55 AM   #1511
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K.Linchpin,

Are these the figures with a 5mt or did you switch to a JDM 6mt with your ej207 swap? Did your driving style also change then, so now you're driving in more traffic?

I think that with the 5mt I would average 24 mpg under my "normal" driving conditions which probably means 65% highway and 35% in-town. If I drove on highways for extend periods, 27 mpg was fairly common as long as I was staying south of 80 mph.

I installed the 6mt in January. I was in the midwest for a good part of winter, so I played in a lot of ice and snow which skews my fuel economy. I also lose at least 10% efficiency with winter blend fuel. I've really not been able to gauge well what I'm getting for fuel economy. I've barely driven since I've been home, with the exception of some dense Charlotte driving (=> gas mileage really tanks!), but the closest measurement that I've come to was ~23 mpg* and I'm on the oem map.

*-since I had the fuel line recall "corrected" by the dealership on my car, I developed an instant pre-cat exhaust leak while simultaneously losing my AC. I'm not sure what I'm losing mileage-wise due to an exhaust leak.

I've an EJ207 waiting for me up north, so I'm going to drive this weekend to go do a swap. I'll then get a decent gauge as to what my current economy is on my EJ205 and then what an EJ207 is capable of.

Last edited by llamsn; 04-22-2011 at 03:00 AM.
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Old 04-22-2011, 10:13 AM   #1512
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Quote:
Originally Posted by llamsn View Post
*-since I had the fuel line recall "corrected" by the dealership on my car, I developed an instant pre-cat exhaust leak while simultaneously losing my AC. I'm not sure what I'm losing mileage-wise due to an exhaust leak.
Fuel line recall for the 02's? Nobody told me
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Old 04-22-2011, 12:23 PM   #1513
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I used to soak a towel with ether and then put it down on the floorboard by the accelerator, so the fumes would rise up in my face. Once I found that I had a cold temp fuel leak, I would just run the fresh air in the cab and enjoy the ride.

The funny thing about that was the dealership in Columbus had my car for 3 days and I took 2 colleagues with me to pick the car up because we were heading out to dinner. One saw my car, took a pic, sent a text, and said that her boyfriend had an 02 white wrx wagon and she didn't want to talk about it!
However, he then did learn about the recall and so he scheduled an appointment within 15 minutes in Portland, OR.
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Old 04-22-2011, 01:03 PM   #1514
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Guys,What do you think of installing Grimmspeed EWG on stock VF30 ??
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Old 04-22-2011, 02:32 PM   #1515
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Quote:
Originally Posted by arco View Post
So with the information above, are you guys saying that I can get somewhere between 25-30 on the 207 and the USDM 6MT?

I haven't been able to tune yet for some certain things so I may ask my tuner about setting up a mpg map.
I have a 207 with a US M6 and the best I've ever seen (all highway @ 65) was 24mpg.

Mixed driving is the same. Wish I could score 30.
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Old 04-22-2011, 06:10 PM   #1516
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Just started a new thread to compare the different twin scroll options. I'm having a tough time deciding.

http://forums.nasioc.com/forums/show...1#post33930491
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Old 04-22-2011, 06:17 PM   #1517
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Hope someone can help...

Ver8 swap---USDM STi 6 speed

I got the NPS and reverse sensor for a 2004.

On the transmission the NPS and reverse sensor are top dead center and out of reach without dropping the tranny.

+

The harness is different for the two sensors from what im running.

What to do?
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Old 04-23-2011, 04:18 AM   #1518
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I ran into the solution a while back but I don't recall. I think I was able to find it in this thread or by searching "nps", or "neutral position sensor"
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Old 04-23-2011, 05:11 AM   #1519
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loosen the bolts holding the x-member, it will lower the tranny and you should have enough room to get to those sensors
I don't understand why you are putting the sensors AFTER you put the transmission...
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Old 04-23-2011, 08:26 AM   #1520
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Quote:
Originally Posted by arco View Post
I ran into the solution a while back but I don't recall. I think I was able to find it in this thread or by searching "nps", or "neutral position sensor"
I did search and I found your post about inverting the NPS on the rom?

It was very vague. I PMd the person you said that helped you and got no response.

Quote:
Originally Posted by Hyper View Post
loosen the bolts holding the x-member, it will lower the tranny and you should have enough room to get to those sensors
I don't understand why you are putting the sensors AFTER you put the transmission...
The transmission has been in the car for a year. The motor went in last weekend. The diagram that I found that shows how to replace the sensors shows that they are located on the side of the tranny not the top.

If the NPS can be inverted on the ecu: problem solved.
I cant get anyone to give a difinitive answer on that.

Loosening the crossmember only solves the problem of getting to the sensors and not the fact that when the sensors changed so did the harness.

There are a ton of people running 05+ trannys. Someone has to have run into the same issue.
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Old 04-23-2011, 09:44 AM   #1521
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NPS can be inverted
if you have V8/9 ROM, I can do it, send it to me
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Old 04-23-2011, 12:52 PM   #1522
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Quote:
Originally Posted by langsbr View Post
I have a 207 with a US M6 and the best I've ever seen (all highway @ 65) was 24mpg.

Mixed driving is the same. Wish I could score 30.
Langsbr,

Are you running the jdm downpipe and has your motor been tuned? Are you running avcs and what version motor?
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Old 04-23-2011, 02:15 PM   #1523
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I think I found somewhat of an answer to my own mpg question!

So, I was wondering "Though it seems that I may have similar results comparing the USDM 5mt to 6mt with fuel economy on an EJ205, can anybody with experience comment on the EJ207 setup w/ the stock catted downpipe?"

Clark mentioned that "A properly tuned V7 or V8 JDM 2.0 motor gets 28 to 30 on the highway with the 5mt trans. If you have the JDM 6mt, THen that will Drop way down to 20 to 22 range.

The mileage really depends on the tune as this JDM ECU keeps the engine in OPen loop ALOT more then the US version. If the tune is off, mileage REALLy suffers
."

I went back to search rpm's and mph on the 5mt and 6mt. If the following is relatively accurate and Clark was talking about the 02-05 5mt, then i think that a properly tuned EJ207 USDM 6mt can hit the upper 20's at 70-75 mph.

This is kpluiten on Nasioc (referring to USDM transmissions) :

"I had an 06 5spd. I then bought an 05 6spd. The highway cruising on the 06 5MT was better than the 6MT (RPM was lower for better mileage on the 06 5MT). For the 02-05, the 5MT in top gear is virtually identical to the 6MT at a highway cruising speed."

Example (Tire size is the same for all calculations):

02-05 WRX in 5th @3000RPM = 77.1 mph
06-07 WRX in 5th @3000RPM = 81.3 mph
04-06 STi in 6th @3000RPM = 75.1 mph
07+ STi in 6th @3000RPM = 75.1 mph

or look at it this way:

02-05 WRX in 5th @75mph = 2918 rpm
06-07 WRX in 5th @75mph = 2767 rpm
04-06 STi in 6th @75mph = 2988 rpm
07+ STi in 6th @75mph = 2988 rpm


and...

Though this is on a Legacy, the drive ratio is the same. This is from HAMMER DOWN on legacygt.com :

The MPH in 1-6 gears @ 2000 RPM & 3000 RPM.

05 STi 6MT in 05 GT, 3.90 final drive, 24.6" tires (215-45\17)
............................MPH @ RPM.........................
Gear..........RPM...........................RPM... ...........
................2000..........................3000 ..............
...1..............5............................... .15...............
...2.............16............................... 22...............
...3.............22............................... 26...............
...4.............24............................... 41...............
...5.............39............................... 58...............
...6.............45............................... 73...............

Last edited by llamsn; 04-23-2011 at 06:47 PM.
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Old 04-23-2011, 03:52 PM   #1524
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Quote:
Originally Posted by llamsn View Post
Langsbr,

Are you running the jdm downpipe and has your motor been tuned? Are you running avcs and what version motor?

I've got a V7 STI motor with an afermarket downpipe and exhaust. I do have working AVCS and it's been tuned for 93.

It makes ok power, but I guess I was expecting more - perhaps its a bit of 207 hype, but Ive also seen quite a few in PPB that make a good bit more.
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Old 04-23-2011, 03:58 PM   #1525
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Quote:
Originally Posted by llamsn View Post

Example (Tire size is the same for all calculations):

02-05 WRX in 5th @3000RPM = 77.1 mph
06-07 WRX in 5th @3000RPM = 81.3 mph
04-06 STi in 6th @3000RPM = 75.1 mph
07+ STi in 6th @3000RPM = 75.1 mph

or look at it this way:

02-05 WRX in 5th @75mph = 2918 rpm
06-07 WRX in 5th @75mph = 2767 rpm
04-06 STi in 6th @75mph = 2988 rpm
07+ STi in 6th @75mph = 2988 rpm
I got an 02 wrx wagon w/ ej205 that is hitting 3.5 at 70. if it's a matter of getting a tune I'll do that instead of swaping the trans. I'm at almost an extra 100hp from stock, maybe more. Next mod is replacing the stock header with a one piece, and I can definitely afford a tuning with that.

Thanks
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