Just wondering what it would cost me if I were to buy a 2008 STI next spring to have a shop purchase and install forged rods, pistons, clutch, and all the other supporting engine parts so I could go ahead and safely run a huge turbo setup. I wouldn't plan on going top of the line Cosworth but I would use Weisco and eagle probably. It seems that in lots of budget builds people build their own engines however I do not have the space or a garage to do this work. I am trying to decide what route to go since I will have a big chunk of change saved up by next spring. I really only want 400-425 AWHP and from what I have been reading this is doable on stock internals. So maybe an engine build is not needed.
They still break easily. For 400whp I would just do Pistons & Rods, maybe some headwork too. You said big turbo setup? How big? 400whp I'm guessing GT3076R but to me thats a medium sized turbo.
It will be a daily driver, so probably GT3071R or GT3076R, they are basically the same price in the places I have been looking. It looks like the 71 spools 500rpm faster too. I would love to do the whole build for $6,000 or under but I dont know if it will happen. I wouldn't be opposed to getting some used parts if they are in good condition also.
Break easy huh? Your WRONG. To get 400whp doing head work would be a complete waste. Doing rods would be a complete waste. The only thing I would do for 425whp, is drop in some forged pistons...MAYBE. Tux, where do you get your info from? :dunno:
^ No kidding. Just because a motor is "built" does not mean it will hold up to a huge turbo. It's all in the tuning. Just like people who put down 500whp on a bone stock longblock.
yea factory rods are pretty strong, its the ring lands you have to worry about. throw in some pistons and you could safely see the power levels you are looking for... with a good tune of course
awesome, well this changes everything. 400whp with a good tune and I shouldn't be scared of blowing up the motor. you tuned yourself didnt you?
me hell no! rsmotors and phill from element. know making that power i know and am waiting for more things to go but as far as pistons and rods, i have had no problems with them
they are the same from what i know? at least the 2.5's. the 2.0s i wouldn't push. would be a waste imo
that is a given. also don't get me wrong. im not saying that you wont have problems with the stock block but its possible to make it last.
Really? I have seen photos of broken stock rods but not broken aftermarket rods? Must of just been one incident but it seems like people still change out the rods when replacing the pistons. You don't need to do that head word at all but I mean it would help reach the goal with ease. If you're going to use a GT3071 why not just buy a bolt-on turbocharger? I'm sure it takes alot more work to get a rotated setup to run so why not just buy a Green? It will make the same power.
if anything, a rotated setup make it easier not harder. plus you get the benefits of using ani-surge housings and 4inch inlets. not cramming a big wheel in a 3inch housing. the only thing difficult is the ewg stuff. and i would use a ewg on a stock mount turbo too which is even more of a pain in the ass. but some people dont want to re buy the up and down pipe so to each there own
I'll probably just buy a complete rotated kit and get everything that I need at 1 time and have RS do the install and tune.
I forget who Russ said was running over 400 (I wanna say Turbo XS) on a stock 2.0 block, IIRC Russ says they stripped 3rd or 4th ... I can't quite remember.
I know I have an apartment garage with limited tools right now, it would be hell to do the install. I would never attempt it without good light, air tools, and enough room
