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Old 09-18-2003, 11:39 AM   #1
cronic
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Default v7 ej207 with pe1820.

I am pretty sure my motor went south so i am planning on swapping it for an ej207.. My question is how will the ecu(jdm) react if i use the 1820 at 15psi and a txs tmic instead of the vf30 and sti/ic? Will the car run ok? WHat are my other options? I am debating flashing the jdm ecu but cant find a reputible tuner close to me..

Thanks
Dave
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Old 09-18-2003, 12:02 PM   #2
totoherbs
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where are you? The depending on where you are the jdm ecu might not even like the gass you have.

It may work but it would hardly be a good set up. Ask venders if they can reflash your ecu till you can get it dyno tuned, I think the guys at dyno comp have done this.
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Old 09-18-2003, 12:17 PM   #3
cronic
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Quote:
Originally posted by totoherbs
where are you? The depending on where you are the jdm ecu might not even like the gass you have.

It may work but it would hardly be a good set up. Ask venders if they can reflash your ecu till you can get it dyno tuned, I think the guys at dyno comp have done this.
I am in NY and can run 94 all the time.. That was my other thought having them flash my ecu for me.. Btw do you know what i need to make the 6pd work on my 02? i was told all i need is driveshaft,front axle's, and rear ring and pinion from early 90's turbo legacy.

Dave
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Old 09-18-2003, 12:36 PM   #4
totoherbs
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off the top of my head I dont remember... but if you seach you will find it. I think theres some places around here, im in Ma, that do ecutek reflashes....
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Old 09-19-2003, 10:57 PM   #5
WickedRydaX
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Just letting you know, the 1820 has a lot of lag, and if you only want to run 15psi I would say pick another turbo. I have one on mine 02 wrx, and man the lag is no joke. In colorado the record on a 1820 is like 13.9 @105 or so. I in fact am going to a STi block to get rid of my lagging lag. If you already knew this, then disregaurd this post.
MCL
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Old 09-19-2003, 11:14 PM   #6
Soon2Bgreat
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Yea but with the ej207 he can rev to 8k. Lag shouldn't be too big of an issue. I'm sure it would be increased over the vf30 but there's still so much usable range. As far as reputable tuners, vishnu frequents the east coast, there's a few tuners around here also, guess it all depends on what you think is reputable. You could of course go with a utec and tune it yourself for more boost. Another option is to get the prodrive package from the UK. Mines sells an ecu upgrade supposedly can be mapped for any gas, and there is also a Subaru group N replacement ecu that is, i assume, higher performance. I say run 1820 with stock ecu, and if you don't like results get an ecutek.
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Old 09-19-2003, 11:37 PM   #7
totoherbs
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Quote:
I in fact am going to a STi block to get rid of my lagging lag.
It will get rid of your percived lag but will not spoll you up faster. seach for more of an answer. And the ej207 is better then the ej257. But the ej257 can be had for half the cost and is hardly something to laugh at.


As for changing turbos... I think he alread has the 1820. Waiting for shiv is lame. Ask in the NESIC forums for ecutek places in new england I know there are some.
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Old 09-20-2003, 02:07 AM   #8
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the 1820 is not as laggy as you guys make it sound, 13.9 @ 105 shows there is much to be desired int he driving technique as you are hitting low 13 traps speeds which is about right on. and on a JDM sti motor with the AVCS the 1820 will be on boost much sooner. 15psi on the 1820 isn't really using the turbo all that much but it's a good amount of air, i would get it retuned just for safety's sake.

i've seen a PE1820 go 12.151 @ 114.03 @700ft above sea level
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Old 09-20-2003, 09:57 AM   #9
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The 2.5 will push out more spent gas, which will yelled faster spool up. That with the added pure power that 2.5 puts out over the 2.0's, will also add to fasters 60'
As for the true lag I have the turbo, my car isn't tuned too well, but the lag is real. It is as bad I said before, but when it starts pulling, it pulls hard. Someone with an 1818 pulled a 12.1 @ 110, so that shows that the lag has a lot of say in the time, not the trap speed. My traps are close to 100, but times range from low 15s to low 14s. If you are planning on using a cold shot the lag will not be bad at all.
MCL
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Old 09-20-2003, 11:33 AM   #10
HndaTch627
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12.1 @ 110 on an 1818, sounds like he was using nitrous
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Old 09-20-2003, 04:58 PM   #11
WickedRydaX
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He was, but he has posted 12.8 without it. Mind that this is also close to 6000 ft above sea level. I was posting to let cronic know that there is a fairly large ammount of lag to it, but it is a nice turbo otherwise.
MCL
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