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Originally Posted by Richard L
Subaru sti is the most tuned car on this planet - avaiable in the UK for six to seven years (2L) and US for the last two years (2.5L).
There are more than just a few tuners in the US using various tools and they all get pretty impressive results. It would be nice to know how you have arrived on this particular route. A good introduction to your specific car would set the scene for the discussions to follow. It will be particularly interesting for me because water injection is being considered.
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thanks for your interest richard. my current mods:
'04 b/g: ap stg 2/93, typhoon, perrin c pulley, kw v3 coilovrs, krtby ss, cobb: tbe, f&r ar bars, ss b lines, hotchkis endlks, rep f strut brace, pagid blues, all motuls fluids, w'line diff/steer bsh
this is a brief recap of the planning process as posted in the sti forums. you'll notice i referenced this site as well:
shortblock - buy all accounts, crawford builds a great shortblock that is more than capable of supporting the kind of whp this engine will produce and the extra displacement will give me a bit more low end grunt.
turbo - i considered the usual list of turbo options. if i had any thoughts about the sr55, ese's experience completely purged that thought from my consciousness. kingpin's gt35r project (
http://forums.nasioc.com/forums/showthread.php?t=705831) really caught my attention and it got me to consider something other than a stock mounted turbo. when i discussed it with quirt crawford, he thought the gt35 was too much turbo and suggested the gt30r. that argument was countered by mike at kingpin and phil at element, who both convinced me the gt30r is too small and sold me on the gt35r. they were both certain that the slightly longer spoolup of the 35 would be a non-issue; further offsetted by the additional low end torque of the 2.6. i'm sticking with the stock header (port matched and heat wrapped) for this reason, also.
i put off deciding exactly which gt35r kit i would get until i settled on engine management.
engine management - i ordered cobb's st long before this plan started to crystalize. i received one of first one's shipped and promptly returned it as totally inadequate for a project that is this ambitious. again, i considered all of the piggyback options, including a blend of ecutek and utek. then i started looking closely at hydra (
http://elementtuning.com/technical/element_ems.htm), which put me in conversation with phil grabow. this proved to be a pivitol moment because phil is clearly an orchestra conductor who is about to assemble his own parts orchestra.
as luck would have it, element is in pre-production with their own gt35r kit. the advantages of having phil tune his own kit with his own standalone ecu is pretty obvious. the decision to take the car to maryland to have him tune it was a no-brainer. then i started looking into water injection.
water injection - first, cudo's to bboy who has been the biggest provider of useful information and an advocate of water injection in this forum. i started researching everything i could at nasioc on the subject and found this forum dedicated to it (
http://www.aquamist.co.uk/phpBB2/index.php). for those who may be less familiar with it, like race gas, wi keeps the combustion temps cooler so you can use more aggressive timing and higher a/f ratios. think race gas at the price of water,
i raised the subject of an aquamist system with phil, already knowing that hydra is designed to accommodate water injection, with safeguards for the risks associated with it. not only is wi within hydra's/phil's capabilities, phil is right now working with aquamist (the company) to develope a hydra-specific wi system, which, as luck would have it, will be available at about the same time that element's gt35r kit will be ready. spooky, eh?
in summary - a lot of this project will be resting on phil grabow's shoulders. i think he can handle it.