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Old 08-13-2008, 03:44 PM   #1
smurfwrx
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Default 18G'd WRX owners - please read

I need your help fella's. I had an interesting discussion with one of the 2 tuners I'm considering tuning me for my 18g when the build is complete. The guy claims it's too laggy and boost wouldn't come on until 4k+ RPM. I know I've seen some of your graphs showing quite the contrary so if you've got 'em, post 'em. He says it would be wretched on the street.

He also claims they wouldn't even want to touch my car with an 18g running more than 18psi. again....? How much boost are guys running on stock internals? I plan to build out the motor eventually, but seems like I've seen so many of you running this turbo with a significant amount of boost w/o issue.

Let's get this party started. Please, if you have an 18g 2.0, comment and give me whatever you've got.

thanks!

EDIT: Brandon, you can play too since you're "savvy."
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Old 08-13-2008, 04:07 PM   #2
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Your tuner sounds like an idiot. I personally know someone running a 3076r rotated kit on his bone stock engine 2.0

18G will spool a lot closer to 3k than 4k

Cliff notes: Find a new tuner
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Old 08-13-2008, 04:09 PM   #3
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i have a bad exhaust leak i've gotta fix and even then i'm hitting boost by 4200 its not bad at all on the street btw i am running 24 psi on meth... i ahve a verry conservative tune and am making 330whp .... i say go somewhere else for your tune....
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Old 08-13-2008, 04:12 PM   #4
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Full boost should come on well under 4k with the stock exhaust manifold. Even with headers, My turbo (ALMOST an 18G) sees full boost at 3200 on a cool night. If you're going EWG (I think you are, aren't you?) then it should come on even quicker. Full boost around 3500 should not be out of the question.

Also, what kind of fuel are you going to use? Here in California, we get 91 piss gas, and even then I'm running 20.5 PSI, the only thing being pushed are the 565 injectors at 93% IDC.

Don't go by a certain boost level though, as it depends on your car and what the tuner feels is safe. But for him to set a limit before ever seeing the car, and telling you not to expect full boost until after 4k, he sounds like an idiot.
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Old 08-13-2008, 04:16 PM   #5
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Alright, I'll let the cat out of the bag....... all along I've been considering TopSpeed in Atl. Recently, someone told me I should consider someone else in NC. (*I really don't want to bash anyone. I'll ask locally.)

They claim to be "THE best tuner in the SE and probably the best in the country." I called him out about the late boost thing and when he told me they've blown up the 2.0 running more than 18ish psi, I pretty much made my mind up on TopSpeed.

savvy, yeah, I'm going the distance.... ewg for sure! And I get 93oct.

Anyone want to post graphs, etc.? I want to validate or completely debunk this guy's claims.

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Last edited by smurfwrx; 08-13-2008 at 09:22 PM.
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Old 08-13-2008, 04:27 PM   #6
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Testes1010(I think that's it) hits full boost on his 20g at 3700. PM him and I bet he'd be glad to prove it to you.
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Old 08-13-2008, 04:50 PM   #7
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Quote:
Originally Posted by Audiosavvy View Post
Testes1010(I think that's it) hits full boost on his 20g at 3700. PM him and I bet he'd be glad to prove it to you.
PM'd him, thanks.
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Old 08-13-2008, 05:48 PM   #8
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Quote:
Originally Posted by Audiosavvy View Post
Testes1010(I think that's it) hits full boost on his 20g at 3700. PM him and I bet he'd be glad to prove it to you.
my TD05H-20G-7cm^2, Hyperflow TMIC, p&p&c'd manifolds reaching 24psi by ~3700rpm.


My TD05H-20G-7cm^2 Meth vs 93 octane both @ 24psi to redline.




Here's a bugeye with a TD05H-18G-7cm^2 with Hyperflow FMIC I tuned boost curve.(Complete list of mods on the car is on the graph, although it is a 7cm^2 NOT a 8cm^2 housing):
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Old 08-13-2008, 06:53 PM   #9
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I've Been Running An 18g Now For 6 Months. I Love It. Makes 18psi Peak At 20 Full Boost Comes In At 3600rpm, But We Have 91 Piss Water. Hb Speed Out Here In Cali Tunes Me, Jon Is A Great Guy. He Used To Be Out On Your Coast, I'm Sure If You Pm'd Him He Could Point You In The Right Direction For East Coast Tuners. The Guy Your Working W/sounds Like A Total Dumbass. The 18g Is A Fantastic Turbo. I Find The Power To Be Very Linear Especially Combined W/ A Shorter Gear Ratio So You Will Definetly Get The Most Out Of Your Ppg's. Good Luck And Enjoy!
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Old 08-13-2008, 06:58 PM   #10
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^^ turn off your Caps Lock
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Old 08-13-2008, 07:15 PM   #11
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^^i Am At Work. That Is A Luxurie I Do Not Have!
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Old 08-13-2008, 07:24 PM   #12
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Quote:
Originally Posted by mongoosaroo View Post
^^i Am At Work. That Is A Luxurie I Do Not Have!

You're definitely from SCIC, I know from the way you spelled LUXURY


You know what I mean
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Old 08-13-2008, 07:39 PM   #13
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Yep. I Think We Have Met. South Bay Friday Night. Sorry Op!!!
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Old 08-13-2008, 09:18 PM   #14
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thanks for the info mongoosaroo and testes.
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Old 08-14-2008, 07:52 AM   #15
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Really? Nothing since last night?
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Old 08-14-2008, 11:23 AM   #16
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Another thing I just wanted to clear up...... I told the guy I've considered the SPT intake and he said, "Oh, it's worthless. Get a COBB."

I may be wrong 'cuz it's happened before, but I thought I read that they were the EXACT same? No?
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Old 08-14-2008, 11:28 AM   #17
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the tuner you considered is probably going off the baseline that is set by most shops. I know that people have ran 26 with meth for boost but a conservative DD tune that wont hurt reliability won't peak over 18. I talked to a shop here in IL about what to run, and I'm going 18g in the spring, but I have a BD LGT so my load will be different then yours and spoil rate different...
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Old 08-14-2008, 11:30 AM   #18
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Alot Of Tuners Like The Cobb Intake. It's Easy To Tune. My Money For Power Would Definetly Go To The Spt Between Those Two.
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Old 08-14-2008, 11:34 AM   #19
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find a diff tuner. i get full spool on my 18g right around 36-3700ish. i am also running 20psi. you shouldnt have any prob running with the spt intake either.
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Old 08-14-2008, 11:49 AM   #20
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see?! I told you, this guy said the exact opposite of everything I've read and decided on. I had to re-affirm my choices and such.

any more graphs? Me likey graphs. It's kinda like being a kid again and seeing G.I. Joe and He-Man toy commercials leading up to Christmas!
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Old 08-14-2008, 12:35 PM   #21
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Quote:
Originally Posted by greenspeed View Post
a conservative DD tune that wont hurt reliability won't peak over 18.

That's not true at all. There are far too many variables to pick a certain number like that. Some cars are safer running 21PSI on pump than other cars running 17PSI on pump.

People keep talking about 'conservative' tunes and it's a bunch of BS.
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Old 08-14-2008, 01:07 PM   #22
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Quote:
Originally Posted by Audiosavvy View Post
That's not true at all. There are far too many variables to pick a certain number like that. Some cars are safer running 21PSI on pump than other cars running 17PSI on pump.

People keep talking about 'conservative' tunes and it's a bunch of BS.
From what I gather, there are only 2 things that decide what "conservative" is..... the tuner and the specific car.

** random "Jack Handy" thought...... Is it sad that I'm more particular about trusting a tuner than I am about my own physician?
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Old 08-14-2008, 01:11 PM   #23
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^^ Without your tuner, you wouldn't make it to the doctor's office to see your physician
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Old 08-14-2008, 02:22 PM   #24
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I JUST put an 18G on my '02 which has 78K on it. All cars are different; different turbo plumbing and exhausts, different intercoolers and intakes etc, different octane ratings in different states, different dynos and tuners. Given my car's age and the fact that it was heavily tracked in its youth, in order to prolong drivetrain longevity, I requested a slightly more "conservative" tune of mid 290s at the wheels.
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Old 08-14-2008, 05:10 PM   #25
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Uhhh your motor isnt old,... Do a little more homework and you will see alot of people running upwards of 150K on upgraded turbos. In fact some people say the 2.0 really doesnt start running like it is broken in until 80 or 90K.

oh and to the OP,... talk to another tuner please. Sounds like he had a problem one time and now he is scared to tune them.
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