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04-04-2007, 04:51 PM | #1 |
Scooby Specialist
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What does it take to make 500whp on a daily driven 07 STI??
I plan on getting the GT65 Element tuning turbo kit, Hydra EMS, Hydra mist, Turbo XS FMIC, walbro 255 fuel pump, 1000cc top feed injectors, and 1 or 2 step colder spark plugs...
Other then what is listed, what do you recommend for this car to make 425whp on meth injection ALL DAY long and 525whp on race gas on a stock motor if possible? I will be purchasing all of the mods listed once the Hydra EMS comes available for my 07 STI but I want to have my list created so I can go to town when the time comes.. Any ideas you may have will be much appreciated..
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Last edited by sean18337; 04-04-2007 at 04:58 PM. |
04-04-2007, 06:01 PM | #2 |
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Your will probably need to beef up your engine. 525whp is a lot on a stock engine.
Breaks would also be a good idea. |
04-04-2007, 06:01 PM | #3 |
Scooby Specialist
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And check in the Power Bragging section. Thats were this kind of info would be found.
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04-04-2007, 09:58 PM | #4 |
Scooby Specialist
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04-04-2007, 10:12 PM | #5 |
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Nope, no balance shafts. DSMs yes, Subarus no. Horizontally opposed motors are very well balanced by nature of their design and have no need for balance shafts.
Last edited by WhiteWoRX1; 04-04-2007 at 10:17 PM. |
04-05-2007, 08:46 AM | #6 |
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Great!! SO I guess if I do the mods that I have listed above I should be good to go! The only other thing I could think of is the TGV deletes and the air pump deletes?
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04-05-2007, 10:27 AM | #7 | |
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04-05-2007, 10:29 AM | #8 | |
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04-05-2007, 11:00 AM | #9 |
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The TGV deletes aren't going to make or break your setup. They will only allow you to squeeze a little bit extra out of it. You probably won't notice the difference.
The single Walbro may or may not be enough for what you are looking for. It should handle power levels in the 400s but many say that it is maxed out by around 490. Check out the Built Motor section under a thread titled "Fuel pumps for 525+" or something like that. There are some pretty elaborate ideas in there, but it should give you some good ideas. Maybe the in-tank Walbro + an external Aeromotive A1000 pump+ filters + fuel pressure regulator? As stated above, you might want to look into engine internals, at least pistons, for the future. I think with the proper tune that stock motor should be fine for a while. At least at the 400 power levels. |
04-05-2007, 11:17 AM | #10 |
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I would like to have 400hp on pump gas with the Hydramist all day long and as much power as I can on race gas for the track with the stock motor!! Most likely down the road I will build the motor as I do commute with this car (lots of miles) and need it to be reliable. I will tune the car very conservatively but I do not want to take any short cuts and want everything to be perfect.
I will check the built motor section for the "Fuel Pumps for 525+.. Thank you very much for the feedback. Keep it coming!!! Last edited by sean18337; 04-05-2007 at 11:40 AM. |
04-05-2007, 12:16 PM | #11 |
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If your going to put the Hydra on your STi. Why not do multiple maps. A track map, a 400 hp, and a conservative map for the work days.
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04-05-2007, 12:20 PM | #12 |
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That is what I plan on doing as soon as the EMS comes out for my car!!
Phil at Element drives his car with i believe almost 400hp when commuting! That has to be fun!!! |
04-05-2007, 01:34 PM | #13 |
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It sounds like you have planned everything out very well and know what needs to be done. Its good to hear that you are being wise with your selections and are not cutting corners!!! I have learned the hard and expensive way about cutting corners. Being young and just throwing stuff on and thinking it would work really bit me in the ass!
Good luck! |
04-05-2007, 01:52 PM | #14 |
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I think we all learned the hard way!!! The nice part about these forums is we all can share our ideas and thoughts and find out what works best!!
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08-09-2007, 04:56 PM | #15 |
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OK, the hydra is in the car.. Now its time to make some ponies!!
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02-15-2012, 02:37 PM | #16 |
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Allot!!!
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03-05-2012, 02:02 PM | #17 | |
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