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Old 06-25-2009, 01:25 PM   #1
ibanez24_7
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Default Supercharging NA motor

Ok if your just going to just flame dont bother. I've spent a good deal of time reading others builds and trying to search for the info Im looking for. Hard to when half the replies are giveing the OP crap about what they are doing instead of helping. Anyway, Im going to add a SC to my 02 TS. Im only going with about 5psi boost. Being my motor just turned 100k miles what internals should I replace or do you think a low boost like that will be ok with stock interanls? I'm guessing pistons and rings along with rods. Eventually Im going to build a block to handle bigger boost but then will need to do something to the tranny and a bunch of other stuff. Thats down the road. This is my DD so I dont beat it. Do some spirited driving but never a launch or try to burn out around a corner. Just a heads up, Ive decided to go with that raptor SC kit. I plan to do a thread as a lot of people are curious about it but I have yet to see anyone on this forum get one. Someones gotta take one for the team. Thanks in advance.
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Old 06-25-2009, 01:39 PM   #2
Odyknuck
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If I had plans to build a motor later I would just Install the SC and an EMU on what you have and go for it. It will probably be fine with 5 PSI Boost. My off road car has a 100K miles on a stock 2.5. I am running 7PSI with a T-3 and a Greddy Ultimate. In my case if it blows it blows.

Last edited by Odyknuck; 06-25-2009 at 02:09 PM.
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Old 06-25-2009, 03:37 PM   #3
ibanez24_7
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Thats pretty much my plan but I dont want it to blow. Obvioulsy who does but after reading several threads where guys are adding FI to NA cars and not having any troubles on low boost it seems legiate. Engine management being the most important part ot this kind of setup, the raptor kit says it includes all that so I guess we will see in a few months.
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Old 06-26-2009, 10:43 AM   #4
NC_OBS
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Ya, the Raptor is supposed to come with a piggyback tuned for a 2.5. You really shouldn't need to exchange out any of your internals for that kinda boost as far as I've seen. Unless you just wanted to put them in now, so that they'll already be there when you crank it up later. Look around on RS25 if you haven't already, I'd say you'll have better luck there as far as getting information. Look at Skidd's and Spudchucker's threads. There's a lot of good back and forth of people asking questions and getting real answers.
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Old 06-26-2009, 01:37 PM   #5
WRX34
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I'd say ask IdentityCrisis if he's even on here anymore also. He had SC boosted his GC years back before finally giving in to turbos and dropping in a new STI setup.
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Old 06-26-2009, 02:22 PM   #6
ibanez24_7
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Ive read redevils threads and speed chuckers. Theres another thread might be speeds that recently started a SC build as well. Beign my car is on the high milage Id hate to have to open her up and change internals but could be worth it to give her some strength. Still up for debate on that. Ive worked on so many cars Im jsut gettign tired of doing things I dont have to do. Seems I'll be safe if I stay with low boost. Always wanted to build a sleeper. Even though this wont be anything crazy there are few na cars that I know of around here that are built. Im pumped about doing this either this fall or waiting til spring. Thanks for the info guys. Ill check out the RS forum and see if I can dig up more info.
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Old 07-13-2009, 04:07 AM   #7
Spudchucker
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100,000 miles? She's still young!

So far as I know, Trade's car (owns Raptor) has 125,000+ miles and it is screaming with the kit he makes at 6 psi. I made some stupid mistakes in the beginning with my own car at 5-8 psi, and it has more than held it's own, and is now approaching the point of screaming as well.. I must say, the resilience of these motors has surprised me a lot during my building/tuning. If I were in your shoes I would supercharge your car, then buy some internals while you enjoy it for a bit. When she blows up or wears out (or the most likely scenario- when you get bored lol) you'll have everything in your garage ready for the internals upgrade that you wanted to do all along anyways
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Old 08-03-2009, 01:54 PM   #8
anothernord
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5 psi with a proper TUNE should be fine. When I say tune, I mean a way to pull timing, and add fuel. If you can do this you'll be fine.
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Old 08-10-2009, 08:41 PM   #9
Tradewind
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ibanez

Mate get into it, your Subaru is crying out for SC, do it and enjoy, either make your own up or get a kit, kits exist now, bolt on and boost.
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Old 08-10-2009, 11:23 PM   #10
VIsubi
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Your car should be fine at 6 psi which from my understanding is one of the pulleys thats available fro mthem direct. As for tuning you should be fine with whatever EM they send you with the kit..but like stated above buy the kit install experiance some boost and get internals or save up for a built RS block so you ca neither turn up boost or have a fresh power plant ready to go then once thats in you can build up the stock block and have your car on the road since you say its a DD. Don't seem like you have time to keep it down then you'd have to motors ready to go..as for drivtrain change fluids in tranny and diffs and keep up with that and you'll be fine...I'm also waiting on the kit to be developed for my MY06 but don't know whats gona be the out come. At least theres one for your car I might have to go turbo and be like everyone else with boosted RS or 2.5i
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