|
|
LinkBack | Thread Tools | Display Modes |
#681
|
||||
|
||||
Jezza... I just want reliable mid 300-400 so rods pistons studs gets you there safe from what I understand after chatting to the shop, maybe sleeving too, I may be wrong and the builder will know better when I get there on Tuesday. If he says the bottom end is fine in its current form then I'll only to the top end as suggested.
__________________
06 STi: 337hp @23psi on E85... 06 STi: 309hp @22psi on 98ron... |
#682
|
||||
|
||||
Thinking Blouch 2.5xtr with 8cm housing....maybe 1.5xtr depending on the differences between the two, will have to speak to Troy....all depending on how much build costs are on Tuesday.
I agree with Nick here....forge it now that its getting opened, don't want to only do head gasket then in a few months time pop a cadbury piston
__________________
06 STi: 337hp @23psi on E85... 06 STi: 309hp @22psi on 98ron... Last edited by RJ999; 25-04-2015 at 10:18 AM. |
#683
|
||||
|
||||
No need to sleeve for that power.
To be fair I wouldn't even sleeve it. Especially given the trouble my engine has had in previous hands. The pics below were from my 2 Door GC8 which made 450KW. It was just pinned with standard bores. The block is still going strong some 5 years later. It's had one refresh in that time as It's done about 50K since I originally had it pinned. I would recommend the ARP 625 studs as a bare minimum though. |
The Following User Says Thank You to dazdavies For This Useful Post: | ||
RJ999 (25-04-2015) |
#684
|
||||
|
||||
This is the research I did, I ended up with a Zage GT2871 (Garrett Japan) with billet 11 blade wheel (bigger tip than 12 blade) 8cm for $1750. Good for 350whp and 500wtq at 22 psi. Instant response at 3rd gear pull.
__________________
MY08 STI 422whp at 1.5bar on E85, built by Diversion Garage, assembled and tuned by EvoR Update from new owner: 375whp at 1.4bar on 98, at Tokyo Motorsport Last edited by s20525xxx; 25-04-2015 at 10:46 AM. |
#685
|
||||
|
||||
Quote:
Will just have it pinned, didn't realise you could do this. What are they called, are these dowel pins?
__________________
06 STi: 337hp @23psi on E85... 06 STi: 309hp @22psi on 98ron... Last edited by RJ999; 25-04-2015 at 10:58 AM. |
#686
|
||||
|
||||
Yes do this and e85
Oh quote fail meant the xtr using the Perth-WRX mobile app Last edited by Jacob92; 25-04-2015 at 11:03 AM. |
#687
|
||||
|
||||
The stock EJ257 block is good for around 450bhp at the flywheel. If you keep below that level you should only need to change Pistons and studs.
Beyond that you'll need to pin the block and swap the rods too. The block dowels in the pics are about 20mm deep and are an interference fit. The block is slightly machined for them and will need a torque plate hone and a reface afterwards. There is no reason that a pinned EJ257 built correctly shouldn't make good numbers. if you're just going to drop Pistons in you must get the block honed to suit the Pistons and to ensure you don't get future gasket problems reface heads and block too. Spend the money doing it right now rather than several builds later. Preparing the block is equally as important as the parts you use. |
The Following User Says Thank You to dazdavies For This Useful Post: | ||
RJ999 (25-04-2015) |
#688
|
||||
|
||||
Gage wasn't a direct fit Gordon. Go the either 1.5xtr with 10cm hotside or a 2.5xtr with 8cn hotside...
__________________
Wide Body GC8 WRX #217 Street Cars WA Full 04 STi drivetrain 08 JDM 207 Garrett 3076 xtr |
#689
|
||||
|
||||
Your welcome to take a spin in my betty RJ. I have the 1.5xtr 8cm on a very stock setup pulls nicely from 3600rpm and only 1.3bar for now. For my money I would take the response over the few extra hp and lag of the 10cm, just my two cents. This was also the advice from Troy at PSR. Horses for courses...
And yes, fuck Gage.
__________________
Bye bye betty blue. Hello F6. |
#690
|
||||
|
||||
Gt pumps does some good gear too I have an older s02 with a custom billet wheel fitted but they supply them like this now anyway.
using the Perth-WRX mobile app |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
FS 1999 version 6 sti | WhiteRX | For Sale (Cars Only) | 7 | 25-01-2012 06:56 PM |
SUBARU IMPREZA Version VI STI Type RA V Limited | Sik em evo4 | For Sale (Cars Only) | 14 | 18-03-2011 07:07 PM |
SOLD: GTB STI MY07 Tuned by STI Liberty OBP #136 / 300 | American Dave | For Sale (Cars Only) | 32 | 22-04-2010 03:53 PM |
Hi guys! New Subaru business check out our stock! | subiworx | Introductions | 0 | 22-09-2005 08:04 AM |