Jay Cartay

iTrader: (3)

I've been looking a bit today for something to go alongside our 2012 STI and it is going to get some serious track abuse. I'm after a Blob as the Mrs doesn't like the bugs, but I'd be very interested to know if there's any significant advantages to buying a JDM Blobeye WRX over a UK car?

Also does the Bug STI have any decent selling points that might be worth a shot to change the Mrs' mind?

I'd quite like a Blob STI, pre widetrack of course, and would push to £6k for one. I do think I'd take a well specced enthusiast owned and built WRX up to about £5k over a standard £6k STI though. i.e. if it had decent brand coilovers, mapped by someone reputable and was ready to go straight on track, spec wise.

Which newages have and haven't got forged pistons?

Cheers folks. I appreciate some of this stuff will have been answered before but I'm about to leave work so wrote this in the hope I'd have some decent answers by the time I get home

cookstar

iTrader: (6)

If it's for track a bug STI is far better than a blob WRX

better

engine
brakes
suspension
gearbox
turbo


etc

cookstar

iTrader: (6)

No newages have fuly forged pistons either.

The Pink Ninja

iTrader: (23)

Echo the above for track use

Decent brakes
Stronger gearbox
Stronger engine
Same power as a modded wrx but a lot stronger

The Pink Ninja

iTrader: (23)

Apart from the JDM bug STi

cookstar

iTrader: (6)

I said fully forged.

jayallen

iTrader: (31)

Which are the same pistons as the UK bug STi

cookstar

iTrader: (6)

The bug STI front seats are also more supportive than the blobs by all accounts.

cookstar

iTrader: (6)

Hypereutectic (sp) iirc

TypeR99

iTrader: (2)

Theres a few cheap classic RA's kicking about at the moment for that price, good base for a track car and significant weight advantage to a newage. Doesnt take much power in an RA for it to be entertaining.

plenty

iTrader: (13)

V7 (bug) JDM and UK pistons were forged.
V8 (non widetrack blob) pistons were forged on UK cars and hypereutectic on JDM cars.
All V9 (widetrack blob) and V10 (hawk) pistons are hypereutectic.

johno01

hi mate...are you sure thats correct?? the uk non widetracks blobs have forged pistons??

jayallen

iTrader: (31)

The UK blob STI has hypereutectic pistons.

johno01

cheers pal...i didnt think they were forged

Jay Cartay

iTrader: (3)

So Bug is the better engine then by the sounds of it? Out of the box at least. Interesting, thank you guys.

When did JDM STIs get twin scroll turbos?

johno01

sorry to go off topic but do these hypereutectic pistons make piston slap like forged ones aswell??

cookstar

iTrader: (6)

2003 onward (blob)

jayallen

iTrader: (31)

I standard corrected, Plenty is correct.

Looking at Subarus own part numbers the part number for the UK Bug STI piston is the same as the Uk blob STI....So it would appear they are forged and not hypereutectic.

plenty

iTrader: (13)

Yes - there was a long debate about this on nasioc.com - with the conclusion summarised by John Felstead here.

Also substantiated by Zen Performance here.

TBH it's moot anyway, as even the hypereutectic pistons are proven to be reliable up to 450 bhp.

domino46

Would consider selling my classic 99 RA 555 for 5k , very clean original spec apart from exhaust and coilovers and great base for a track car

johno01

nice one pal

bustaMOVEs

iTrader: (31)

From what I know as we had this discussion with Luke and all non twinscroll ej207 have true forged Pistons including the jdm.
The twinscroll got the hypereuctic pistons.

jayallen

iTrader: (31)

Subarus own part numbers suggest otherwise.

bustaMOVEs

iTrader: (31)

For which one? Widetrack?

jayallen

iTrader: (31)

Uk bug STI, JDM Bug STI and UK Blob Sti upto 05 all share the same piston part number.

The JDM MY03/MY04/MY05 have a different piston part number than above.

bustaMOVEs

iTrader: (31)

That's basically what I said, all non twinscroll ej207s (newage of course) have forged Pistons the jdm 03/04/05 are twinscroll
part numbers for bug, blob
Grade A 12006AB430
Grade B 12006AB440
2001 to 2005

And I'd think the widetrack comes into this too?

jayallen

iTrader: (31)

AB430 for the forged and AC430 for the hypereutectic.

cookstar

iTrader: (6)

I stand corrected too.

bustaMOVEs

iTrader: (31)

I quoted part number for bug and blob just for reference