for the money it will cost to just change the rear housing injectors and tune tune tune itll be a much cheaper option then custom work for a turbo heads cams etc etc etc its like opening a can of worms i think anyway

[QUOTE=Kato;387222]Why not go for one of the other 10 billion proven 300hp combinations out there?[/QUOTE]

+1/

Dude, you either have big power - scraifice spool, or you have spool and you sacrifice power. You cant really have both.

Vf34-p20 is the cheapest simplest upgrade to net you both of these worlds...although I wouldnt call it BIG power...but great for street.
screw in 26 psi - 300hp daily easy. and no big mods requried.

think i will go down that path tode and look for a p20 rear housing what injectors should i be aiming for? and also what headers are not going to leak or is that all got to do with how well it has been coated

Trust TD06 20G kit, cams and springs so you can rev to 9k, injectors, more boost, retune

or sell it like you keep talking about and buy a scooter

[QUOTE=blue.spec;387234]think i will go down that path tode and look for a p20 rear housing what injectors should i be aiming for? and also what headers are not going to leak or is that all got to do with how well it has been coated[/QUOTE]

[url]http://forums.nasioc.com/forums/showthread.php?t=1123845&highlight=vf34+p20[/url]

injectors... decaps?

tomei headers uneqaul length... its the slip joints that leak..nothing to do with coating..

or just buy a GTPS02 - its got a upgraded comp wheel, so it gives better performance. decaps & retune... big power..

11second pass is an awesome pass for a vf34 pretty impressed

Hey, I was in a similar situation with my previous car. Had a rebuilt 02 spec C motor, GTPS01 (TD05-16G) TMIC, zaust fuel, headers, ECU etc. Got 275hp and about 350Nm.

Fitted a FMIC, retune (Diff tuner boost up from 1.3 to 1.5) and got 308hp and 380Nm. Modded the dump and ran the turbo with no boost restriction at all (cause motor could take it)...I think it was about 1.7bar and got about 320hp and dont know what the Nm was. So, its do-able.

More boost, more fuel. Have a good chat with the tuner and they will tell you whats happening and what is holding it back.

will go have a nice chat with my man sean and see what the go is i think ill do all the above injectors, headers and p20 first and see how that goes if it is still a major restriction ill sell the vf34&p20 and buy a td05-16/20g

[QUOTE=207 de;387246]Hey, I was in a similar situation with my previous car. Had a rebuilt 02 spec C motor, GTPS01 (TD05-16G) TMIC, zaust fuel, headers, ECU etc. Got 275hp and about 350Nm.

Fitted a FMIC, retune (Diff tuner boost up from 1.3 to 1.5) and got 308hp and 380Nm. Modded the dump and ran the turbo with no boost restriction at all (cause motor could take it)...I think it was about 1.7bar and got about 320hp and dont know what the Nm was. So, its do-able.

More boost, more fuel. Have a good chat with the tuner and they will tell you whats happening and what is holding it back.[/QUOTE]


Difference was though, you had Spec C cams.

This is the thing... I've seen so many GC8's with similar mods, and hardly any of them crack the 300 because the cams are holding them back.

Not saying it can't be done, but you'll just need a shitload more boost thats all.

what sort of cams should i be running joe?

272 cosworth

isn't cams an engine out job tho?

Yes Josh, to get the heads off the engine must be lifted out unless you have super dooper small hands! JDM hands YO!

Kristian I think you should have just bought Jaron's pig. Everybody here wants more :D

cams can be done with the engine still in the car. the heads don't necessarily need to come off.

i made over 450hp on stock gc cams, 2.4 bar of boost though. maybe not good for a open deck ej205.

arnt Kelford cams cheaper and the same as Cosworth?

I'm pretty sure I heard that Kelford made the early Cosworth cams. Don't think they do anymore though

[QUOTE=jEstEr?;387286]cams can be done with the engine still in the car. the heads don't necessarily need to come off.[/QUOTE]

Ive heard of the shims being done but never the cams! Matty has JDM hands...YO!? You can come do my cams when i buy some.....:D

Estimate $ on doing cams in an EJ20? Cause I'd like to do cams maybe...

Labour =
Parts =
Tuning =

[QUOTE=207 de;387310]Estimate $ on doing cams in an EJ20? Cause I'd like to do cams maybe...

Labour =
Parts =
Tuning =[/QUOTE]

well Kelford cams + springs is around $1400Aus delivered from NZ.

Kelford 264/264 10mm lift, with valve spring set version - Wrx 5-6 Non AVCS - $1200

From Vision R in O'connor, under Kelford cams

[URL="http://www.visionr.com.au/"]http://www.visionr.com.au/[/URL]

Technical info:
[URL="http://www.camshaftshop.co.nz/index.php/EJ20-Non-AVCS-Version-5-6/199-C-Camshaft/camshaftshop_view.tpl.html"]Kelford 264[/URL]

[URL="http://www.camshaftshop.co.nz/index.php/EJ20-Non-AVCS-Version-5-6/199-E-Camshaft/camshaftshop_view.tpl.html"]Kelford 272[/URL]

Yeah I vote Kelford 272 cams, and I'd get them from NZ, free freight plus under $1000 Australian so there isn't that tax on them.
EDIT: Oh the ones from Vision R come with the valve springs too, I'd go there :D

Any plans to do up clutch n gear box with power in excess of 300 hp? how much could a standard gear box and lets say, a subaru heavy duty clutch handle?

[QUOTE=QUINNER;387357]Any plans to do up clutch n gear box with power in excess of 300 hp? how much could a standard gear box and lets say, a subaru heavy duty clutch handle?[/QUOTE]

He has a doggie anyway but a stock box can handle plenty if it driven with some mechanical sympathy............i.e slip launched and never clutch dumped.......there's plenty that are happy with 250+ at the hubs.

[QUOTE=tuna;387287]i made over 450hp on stock gc cams, 2.4 bar of boost though. maybe not good for a open deck ej205.[/QUOTE]

a lifetime ago on an andrew jordan tune, my totally unopened MY98 ej205k with stock heads/cams made close to 400hp atw's on the hubble telescope @ 1.8bar :eek:

on the subject of cams, it was suggested by previous owner of my car that cams be the next step in the quest for more power, how restrictive are RA cams? much difference to GC STi cams or even standard GC cams?

end jack :p

Just did a quick search mate, not sure if that will help but here you are

WRX & STi EJ20G A/B C AND RA
IN 242 EX246

STi EJ20K Ver3
IN 246 EX 248

Remember these are USDM so this info might mean nothing to you :P

[QUOTE=Elrico;387395]Just did a quick search mate, not sure if that will help but here you are

WRX & STi EJ20G A/B C AND RA
IN 242 EX246

STi EJ20K Ver3
IN 246 EX 248

Remember these are USDM so many this info means nothing to you :P[/QUOTE]

cheers for the assist eric, just on numerical difference i guess there is a bit of difference to say 272 cams....i shall investigate further :)

Cosworth cams are awesome.

[QUOTE=207 de;387310]Estimate $ on doing cams in an EJ20? Cause I'd like to do cams maybe...

Labour =
Parts =
Tuning =[/QUOTE]

cams/springs and head job 2-3k
tuning 500 - 1k

or buy the whole thing already all done by cosworth and bolt them up, easy peasy japanesey (americanesey).

[QUOTE=LegacyRS;387360]He has a doggie anyway but a stock box can handle plenty if it driven with some mechanical sympathy............i.e slip launched and never clutch dumped.......there's plenty that are happy with 250+ at the hubs.[/QUOTE]

Yeah mines happy on 300 @ the hubs. would like to go more but prolli wait till i get the turbo upgrade.


+ 1 for cosworth cams

ok, so allow $1200 for parts. $500 to $1000 for tuning...

Its the labour at 80-100$ an hour that Im interested in. 8 hour job?

[QUOTE=B4GT;387421]cams/springs and [B]head job 2-3k[/B]
tuning 500 - 1k[/QUOTE]

2-3k for a headjob! :eek:

Hope she'd swallow for that price.

im going to go for the p20 injectors and tune and see how i go without the headers and cam then that will be step two

Speaking of injectors. What's the headfuck with putting a GD inlet manifold on? That would obviously allow decaps which could be a cheaper option?

didnt you have to relocate coils or wire them in?

[QUOTE=Josh;387561]Speaking of injectors. What's the headfuck with putting a GD inlet manifold on? That would obviously allow decaps which could be a cheaper option?[/QUOTE]

ill go over it one more time in case the previous times got brushed over.

you loose idle up valve control which isn't a problem if you run rotational idle all the time. if you don't you loose boost control function which again isn't a problem if you have a stand alone ebc. then the coil pack has to be relocated and leads extended or individual ones wired up to take its place. changing the injectors pins from the wiring harness to new ones to accept the top feeds and lastly issue with the throttle body so its not for the faint hearted! if your going to so much trouble, ideally you would want a spec c delete manifold and reverse this....or upgrade to a tmic :cool: