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Old 08-03-2011, 10:12 PM   #1
fxt05
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Default Robs 550 tune checklist.

I'm considering upgrading to Rob's 500cc tune and I'm wanting everyone's advice that has gone this route. I have a 95 sti type ra EJ20G with built bottom end.

First question is about the ECU. I already have a rob tuned ECU and what I'm hoping for is that I can just request a new chip and install it myself because my car is my DD. Is it possible to do this or is it necessary to send him my ecu again to perform the tune?

Second, are there any how to's on installing the injectors. I saw the thread about the 800cc injectors, I assume its similar only I wont be doing any modifying to fit such a big injector and instead it should be as simple as just swapping the injectors?

Third, all supporting mods:

I want a better flowing downpipe, right now I have a stock JDM downpipe and fujitsubo catback. Are there any good JDM length downpipes or am I better off buying a new turboback?

Larger TMIC? are there any or is my only option an ebay FMIC or custom FMIC? I really don't want to hack up my v2 bumper but will if its necessary. I assume I would loose my fogs so where could I get STI fog covers?

Intake, what are the options? I've read that a lot of people use apexi, what are everyone's opinions on this intake?

Boost control, Do I just buy a manual boost controller and a boost gauge and set it and forget it? what amount of pressure is safe for the 550 tune? I assume the MAF is the limiting factor here.

Any help would be greatly appreciated. Thanks in advanced everyone.
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Old 08-04-2011, 12:52 AM   #2
marshal.
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im in the same boat as you, and literally just asked the very same questions.

I currently have the fmic, and didnt require me to loose my foglights. Very little trimming was required of my bumper.
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Old 08-04-2011, 12:01 PM   #3
Jarrod164
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When you say you already have a rob tuned ecu, do you mean you have the 440 tune? If you want the 550 tune you'll have to send it back to him and pay another $100 or whatever he charges. I may have snagged the last spare ECU he had so you'd have to wait until mine gets back to him so that he'll have a spare to send out again with a deposit so you have no downtime.

I haven't seen an injector how to myself, will be looking more thoroughly soon though.

I don't know where you'd buy a jdm downpipe? ebay? Downpipes and cat backs for 02-07 subaru's are relatively cheap.

You don't need a FMIC for the tune.

Everyone loves the apexi, I just dropped the bottom half of the air box and strap the filter up.

Yes you need an MBC, $25 on ebay (lookup voodoo III). The tune is set for 18psi I believe.

Hope that helps (PS I don't have the tune haha so enter a disclaimer here for not being responsible for anything =P )
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Old 08-04-2011, 04:30 PM   #4
fxt05
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Haha, I like your disclaimer. thanks for the info. I might try to modify my catback to fit a usdm downpipe because I like how quite it is and looks fairly stock. The other option is maddad whisper back and thats $$$. also yes, I have the 440 tune already. Thanks again.
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Old 08-04-2011, 10:44 PM   #5
cmyles
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Quote:
Originally Posted by fxt05 View Post
Haha, I like your disclaimer. thanks for the info. I might try to modify my catback to fit a usdm downpipe because I like how quite it is and looks fairly stock. The other option is maddad whisper back and thats $$$. also yes, I have the 440 tune already. Thanks again.

You don't have a MBC and your running a 440 tune? How does that work?

I am going for the 440 tune and have gotten this checklist to make sure the car will perform to the best of its abilities.

- 02+ Coilpack Conversion (Waiting to go in)
- 04 Sti Fuel Pump (Looking for one)
- Intake (I have an ARC)
- Upgrade TMIC / FMIC
- Turboback Exhaust (On Its Way)

Don't know if its necessary to upgrade header, apparently its pretty decently flowing, the stock that is.
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Old 08-04-2011, 11:30 PM   #6
fxt05
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Honestly I dont know if I have a MBC. I'll have to look for one. I just bought this car a few months ago and dont know for sure what its using for boost control. I thought the 440 tune could be ran with stock boost control but I could be wrong.
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Old 08-05-2011, 01:17 AM   #7
blkgm8
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"also yes, I have the 440 tune already. Thanks again."

I do believe you will not need to send your ecu to Rob again. It should already be socketed and ready to accept his 550 tune chip. If you already are using his 440 tune, then you should be of the best opinion of his work. I have spoken to him several times and can tell you first hand from someone who knows a lot about tuning ecu's that he definitely knows his ish.
I also have seen excellent results from his and another member on here using the 550 tune. If I werent ditching my TD05 and going bigger, I would definitely have gone that route, because he can basically help you get just about all you will out of that turbo with a stock maf.
Excellent choice for anyone looking for a sweet bump in hp, while keeping it simple and on a budget.

As for the 550 injectors you have a couple of choices. You can use these adapters with usdm sti yellow sidefeeds which are known as phase 2 ( http://www.carldavey.co.uk/product.php?id=2 )

Or you can just run some phase 1 or 1.5 sti yellows from an early gc8 sti which bolt right in without modification. Some will call them 440 injectors, but if they are yellow those are the ones you want. You can tell them apart because these will have a longer tip that goes into the intake as opposed to the us sti ones which have much shorter tip area.
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Old 08-11-2011, 09:46 AM   #8
tobyjr
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You may want to send the ECU back to him just to be on the cautious side. I also have the 440 tune and will be sending mine back for the upgrade a little later.

And by all means you should be using some type of boost controller.
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Old 08-11-2011, 11:42 AM   #9
wagonryan
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Scribed...same engine same plan. How are you liking that car? I was watching it when it was fs, looked very nice.
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Old 08-11-2011, 11:51 AM   #10
luka
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hey Rob, quick question: what fuel pressure were you running for your 550 tune?
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Old 08-11-2011, 12:26 PM   #11
rob
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Quote:
Originally Posted by luka View Post
hey Rob, quick question: what fuel pressure were you running for your 550 tune?
Stock. 43psi differential.
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Old 08-21-2011, 04:56 PM   #12
luka
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is that with the vacuum line connected at idle, or without? I picked up an FPR and the instructions say to adjust without the vac line...

Thanks

Quote:
Originally Posted by rob View Post
Stock. 43psi differential.
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Old 09-02-2011, 02:00 AM   #13
fxt05
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Quote:
Originally Posted by wagonryan View Post
Scribed...same engine same plan. How are you liking that car? I was watching it when it was fs, looked very nice.
Sorry it took to long to reply. I freakin love this motor. It makes ok power up to 4k but after that it turns into a completly differnt beast. It freakin halls ass all the way to 7500 where i let off because i'm scared that it pulls that long and wants to keep pulling. but i'm getting used to it now and wanting more power. IDK if i want to do the rob 550 tune or go with ViPec. I wish ROB would tune in and let everyone know more about the requirements of this tune and the pros and cons of it. TUNE IN ROB! PLEASE!. otherwise i;m thinking hard about spending a lot more money on the standalone and pro tune. but i would like to hear both sides of the story. SuperDave, have you run the 550 tune? i know you run and love the ViPec ECU let everyone know what your opinions are and rob chime in too please!
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Old 09-07-2011, 03:24 PM   #14
omahasubaru
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Tons of info here on rob's tune. Pretty much all you need to know. http://bbs.legacycentral.org/viewtopic.php?f=19&t=43744
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Old 09-07-2011, 04:11 PM   #15
cmyles
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Quote:
Originally Posted by omahasubaru View Post
Tons of info here on rob's tune. Pretty much all you need to know. http://bbs.legacycentral.org/viewtopic.php?f=19&t=43744

Question for anyone running more than 12psi.
When do you hit full boost ?
I just swapped my td05 back on , and i wanna know that it's boosting properly.
I'm hitting 14-15psi around 3800 let's say
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Old 09-07-2011, 04:37 PM   #16
69subaru360
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Quote:
Originally Posted by cmyles View Post
Question for anyone running more than 12psi.
When do you hit full boost ?
I just swapped my td05 back on , and i wanna know that it's boosting properly.
I'm hitting 14-15psi around 3800 let's say
Mine has been around there too.

I recently set the wastegate tighter and backed off the boost controller. It seems a little better now. It's been raining for days and I haven't been able to make any good wot runs yet.
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Old 09-07-2011, 04:49 PM   #17
cmyles
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Originally Posted by 69subaru360 View Post
Mine has been around there too.

I recently set the wastegate tighter and backed off the boost controller. It seems a little better now. It's been raining for days and I haven't been able to make any good wot runs yet.
As in like set the wastegate so the takes more to open, so decrease the distance from the actuator to the bracket essentially?

I'm running the 440 tune and made a wot pull and popped my intercooler piping off hahaha .
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Old 09-07-2011, 04:55 PM   #18
69subaru360
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Yes, shorten the rod and back off on the boost controller. It can help spool the turbo faster. You can run into a problem where it overboosts if you go too tight, as the flap doesn't open as far. But you aren't going to run into that at 14 psi on a 16g.
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Old 09-07-2011, 08:15 PM   #19
luka
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Quote:
Originally Posted by 69subaru360 View Post
Yes, shorten the rod and back off on the boost controller. It can help spool the turbo faster. You can run into a problem where it overboosts if you go too tight, as the flap doesn't open as far. But you aren't going to run into that at 14 psi on a 16g.
I'm running a 16G @ about 17psi and it overboosts pretty bad... you're saying tossing the MBC and shortening the WG rod will help with that a bit?
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Old 09-07-2011, 08:20 PM   #20
69subaru360
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Quote:
Originally Posted by luka View Post
I'm running a 16G @ about 17psi and it overboosts pretty bad... you're saying tossing the MBC and shortening the WG rod will help with that a bit?
No, not at all. If you are overboosting with a MBC you should back off the knob on the MBC.
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Old 09-07-2011, 11:02 PM   #21
luka
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whoops.. I meant I have a bad boost spike, not overboost. my bad.
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Old 11-25-2011, 01:17 AM   #22
sneaky
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Quote:
Originally Posted by fxt05 View Post
Honestly I dont know if I have a MBC. I'll have to look for one. I just bought this car a few months ago and dont know for sure what its using for boost control. I thought the 440 tune could be ran with stock boost control but I could be wrong.
No you do not have a MBC. And you're ECU is able to accept the "chips" that rob supplies with his tune. You do not need to send him that ecu. He has already been through it. Dont guess or assume, i'll answer you're questions you know that, i'm married not dead...
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Old 12-06-2011, 02:49 AM   #23
wagonryan
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Quote:
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whoops.. I meant I have a bad boost spike, not overboost. my bad.

Shooting the Overboost
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