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Old 08-21-2007, 05:08 AM   #1
rexoutofhell
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Default what would you do if you had a sti block

I have looked and searched, but i want to know what people have done and has worked for them, that have fully built there sti block 2.5??? Which have been the best parts you use, pistons, rods, cams. everything??
Also wondering for a fully built motor which turbo would you go with gt35r .82 or 1.06? when is full boost going to come in
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Old 08-21-2007, 04:09 PM   #2
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id use it as a paper weight!

if you're gonna build it with forged internals get a gt35r for sure!!
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Old 08-21-2007, 05:58 PM   #3
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woogie boogie
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Old 08-21-2007, 05:59 PM   #4
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hah funny, dont think im a newb, i forgot my password on my other account. the turbo isnt really the problem. its just what exact parts. I dont want to go full race block, but really reliable if im planning on getting 400+whp. I have talked to a couple shops. and all said thats it up to me. didnt make since to me neither
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Old 08-22-2007, 03:38 PM   #5
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if your hp goal is 400whp,
just pick between GT30R or GT35R in 0.82 trim - easy as that
of course you'll need the supporting mods
800cc - 1000cc inj
dual Walbros or Bosch 044
etc....
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Old 08-24-2007, 04:28 AM   #6
rexoutofhell
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oh trust me that 35 is getting slapped on, i just want the best reliable supporting block mods, i have been searching for months, but you still dont know what works best without asking people that have tested it before. anyone best piston,rods,cams,etc
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Old 08-24-2007, 09:17 AM   #7
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A set of pistons will make it reliable.
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Old 08-24-2007, 10:04 AM   #8
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I'd consider rods as well. Forged rods are pretty cheap insurance in my opinion considering if they go you've pretty much trashed a block. And I have seen 2 blocks with a blown rod, 1 was un-salvageable, and the other need around $2k in machine work/parts to run again.

Last edited by ai42; 08-24-2007 at 10:34 AM.
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Old 08-25-2007, 04:32 AM   #9
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ya, but which would be better rods, pauter or crower, or etc which are the strongest. and are cp pistons the strongest or are there other. and whice cams would be the best. anyone can research. but i need proof
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Old 08-25-2007, 11:22 AM   #10
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I'm running Pauter's as do all my customers...I hate eagle...carrillo are too expensive for most. Crower's are nice too.
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Old 08-25-2007, 12:46 PM   #11
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While you are in there , I would pick up some good bearings. I have seen some forged blocks fail , and everything looked great...except a bearing.
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Old 08-25-2007, 02:31 PM   #12
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Quote:
Originally Posted by rustyzipper View Post
While you are in there , I would pick up some good bearings. I have seen some forged blocks fail , and everything looked great...except a bearing.
true that...so pistons, rods, bearings and arp headstuds for a bit more insurance as it is easy to turn up the boost on race gas but not so easy to put a headgasket back together
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Old 08-25-2007, 04:58 PM   #13
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Quote:
Originally Posted by rexoutofhell View Post
ya, but which would be better rods, pauter or crower, or etc which are the strongest. and are cp pistons the strongest or are there other. and whice cams would be the best. anyone can research. but i need proof
Does it really matter? Do you just want bragging rights? at 400whp with a ZERO Det. tune, you won't even break a stock rod. why even want to know which forged aftermarket is 'stronger'? You aren't gonna break those either.

Go to the race shops near you and talk to them. Those guys blow up motors for fun and R&D. THEY know what will handle how much/when/where/why.

You shouldn't ask the 16yr olds on here......Daddy is still paying for everything.

(Well, with the exception of Micah....dear lord I look forward to pics.....and your destruction pics too!!!! )
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Old 08-25-2007, 05:56 PM   #14
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Quote:
Originally Posted by modaddict View Post
...at 400whp with a ZERO Det. tune, you won't even break a stock rod...
According to Gadiel's research, make that 600whp. Oh, and lay off the children...someday they'll be paying into SS for you and me.
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Old 08-25-2007, 07:12 PM   #15
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Quote:
Originally Posted by modaddict View Post
(Well, with the exception of Micah....dear lord I look forward to pics.....and your destruction pics too!!!! )
trust me they will be coming...guess I could start a build pieces thread, but don't where I should put it
now I dumped the billet crank to find where the new subaru oem crank will die (for oiling system ****s and giggles)...and that will be my excuse to run back through the block and o-ring before running the 4202R and 6-spd dogbox
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Old 08-25-2007, 09:34 PM   #16
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I'd sell it and buy a closed-deck engine .
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Old 08-26-2007, 03:56 AM   #17
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What would I do? Eactly what I just did!

USDM EJ257 block. Sleeved with heavy collar top sleeves and finished to suit 100mm bore.
CP pistons 8.5-1 comp coated skirts. Altered compression height so I can use long rods
New EJ25 crankshaft with extra oil holes.
Argo billet rods (as your in the US use the Pauters)
ACL race series bearings
12mm JDM oil pump
Block has ported internal oil passages.
Custon large capacity oil pan to eliminate chance of oil aeration
Thats what I curently have in the garage, just in the process of starting to blueprint, final machining and assembly.

Last edited by bugeyes; 08-26-2007 at 03:57 AM. Reason: Forgot to add something.........
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Old 08-26-2007, 08:46 PM   #18
rexoutofhell
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haha, i hope your not talking about me exploding my engine. but ya wow this kinda exploded, thanks for all the input. im not looking to get a certain power range obviously alot is really nice, if anyone cared i want this to be a really fast dd =). but with all my research and your guys help, its kinda coming more clear on what/not to get. im going to have to search for a closed deck engine see what there about. peace
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