Engine build finally underway
 

So after many months of research the engine build is finally underway.
I settled on the following

Ej207 semi closed deck case halves
2014 sti 2.5L crank for 2.1L cap
Manley rods
Weisco pistons
GDB heads with 272 kelford cams, new springs and retainers
Acl bearings
Arp 625 studs
New cam gears and belt
New gaskets

This will be mated to the following that already exists on car (V6 STi)

Autronic ecu
UEL headers (wrapped)
Process west top mount
Autronic ecu
Standard intake (stock look for mr po po)
3"dump pipe and 3" dump pipe
Sti 6 speed (long ratio)

Only thing i cant yet settle on is turbo.
Torn between blouch 20g xtr or a stock fit atp gt3071r

Im aiming for 370whp+ on 98 ron (or a high ten second pass)

I believe the top mount will be my limiting factor.

Also what injectors do people recomend for the above.

How much has the quote come in at for parts+labour? Rounded off to the nearest thousand is fine.

The engine long block (cases and heads supplied) build come to 10k square

Going to cost extra to have it fitted and tuned of course

I budgeted 25k all up to get the car reliably into the 10s.. thats gearbox conversion, clutch, engine etc etc

Good times ahead! Keep us posted with build pics, install pics, and all that jazz!!

Will do

Good luck with this build :) will be great to see another fast GC8 STI.

The TMIC might be the limiting factor but Shane's Liberty has a Cosworth EJ27, E85, GTX3076 (stock location) and a Process West TMIC... Speaking to Dan (tune at MMS) that car will be pushing big power with no hassle.

i see your going to use autronic ecu. Have you looked in the injector list in there ecu software?
It's the list of injectors autronic have already tested.

Are you going top feed conversion? or side feed injectors

Good luck with rebuild. nice set-up

[QUOTE=nwt1976;838204]i see your going to use autronic ecu. Have you looked in the injector list in there ecu software?
It's the list of injectors autronic have already tested.

Are you going top feed conversion? or side feed injectors

Good luck with rebuild. nice set-up[/QUOTE]


Where can I find this list of tested injectors please??

Buy new FMIC, sell old TMIC, profit.

download autronic ecu software from autronics web site. The program will run without ecu connected.

My v5/6 wrx runs autronic smd plug n play ecu and when i upgraded to injector dynamics 1000cc i checked the software to make sure it was tested.

download ecu software. install on computer. run smc or sm4 program. open cal file. goto M1 menu.

you will find injector menu which will have list of injectors you can select and also have user defined settings

There is not an awful lot of difference between the 20G and a 3071. The 71 has a 3mm bigger compressor wheel. My gut feeling is that with a 2.1 litre that you would get better response by going for a TD05-20G or a GT2871.

Cobb has had great results on a TD05-20G on the 257. Especially once you run e85 and higher pressure ratios.

[QUOTE=Kremer930;838210]There is not an awful lot of difference between the 20G and a 3071. The 71 has a 3mm bigger compressor wheel. My gut feeling is that with a 2.1 litre that you would get better response by going for a TD05-20G or a GT2871.

Cobb has had great results on a TD05-20G on the 257. Especially once you run e85 and higher pressure ratios.[/QUOTE]

The other thing to consider is ballbearing on the garrett and journal on the mitso. This makes a difference.

I had a blouch billet wheel td05. And replaced it with a larger blouch billet wheel dom 2.5 and it spoooled earlier and made more top end at lower boost. Id expect a similar result comparing a 20g to a 3071.

The OP sounds like he wants a pretty powerful setup. What about 3076 even. He want 370whp .


EDIT. Forget the bb vs jb comment. Just realised OP said 20g XTR not XT.

For reference my GC8 2 door weighed 1231kgs and ran 10.9


* Edited just looked back at old dyno graphs from the time 486whp it took for mine to run 10.90

High tens could be hard RS flash has one of the fastest subies in wa I believe running a 10.4 last month with 580whp that car once again won the wrx vs evo battle at the drags high 11s or low 12 with that sort of horsepower your quoting but as they say the strip never lies. Keep the updates on the engine build coming v6 STI is one of my favourite looking suby good luck with the build.

WHS ^

You really should reconsider using a top mount, and the small turbo like your considering. What your planning will be a very quick street car but the major limiting factor will top mount and turbo, If you want to run 10's you'll need at least a gtx3076 size turbo.

Also as far as a matching package goes, if your dead set on using a top mount and small turbo, using 272 cam's isn't a good fit, 264's or 8's would give much more usable power and torque.

if your after front mount intercoolers I have 2, bar and plate, the other a tube an fin, and a set of ID 1300cc near new, they where to small for my use.

[QUOTE=Rslib72;838247]High tens could be hard RS flash has one of the fastest subies in wa I believe running a 10.4 last month with 580whp that car once again won the wrx vs evo battle at the drags high 11s or low 12 with that sort of horsepower your quoting but as they say the strip never lies. Keep the updates on the engine build coming v6 STI is one of my favourite looking suby good luck with the build.[/QUOTE]


I have seen a gc8 pull 11.98 at 116mph with 290awhp.
Also a gc8 with 350whp run 11.5 something so i thought 370 plus would get me close.

Definitely want to keep top mount as the police just seem (from my experience) hassle cars with front mounts.

I may have to live with a mid to high 11 second car because i definitly dont want the attention.

The car looks stock as a rock. Even under the bonnet

[QUOTE=Wildbill;838265]if your after front mount intercoolers I have 2, bar and plate, the other a tube an fin, and a set of ID 1300cc near new, they where to small for my use.[/QUOTE]
Mate. Im definitly interested in the injectors. Could you PM me how much you want for them and your contact details.
Im in adelaide atm but will be back next week.

How much use have they had

Power required to go from 12.5-11.9 ~ 50hp
Power required to go from 11.9-11.5 ~ 80hp
Power required to go from 11.5-10.9 ~ 150hp

See where i'm going..

Well say it's in the elevens once you get to run her down the strip that is still one hell of a fast car the vast majority of cars on the road are not that fast....

Hrmmmm... looking at maybe the ATP Gt3076.. its stock location.
Anyone had any experience with these turbos

[QUOTE=VUSSUTE;838298]Hrmmmm... looking at maybe the ATP Gt3076.. its stock location.
Anyone had any experience with these turbos[/QUOTE]

Could also look at a blouch dom 3. Its a stock location gt3076r but it has a billet wheel (kinda like a gtX3076

But i dont think either will get you into the 10s

You're not getting in the 10s with anything less than 450WHP plain and simple.

I've just looked at graphs for the power my 2 door GC8 Type R was running when I did my 10.9

This was on a concrete runway so there was plenty of grip and the car weighed 1231Kg

This was on a Front Mounted GTX35R running 1.8 bar and a 98/20%Methanol mix.

[img]http://www.scoob.co.uk/typer/dyno/dyno1.jpg[/img]
[img]http://www.scoob.co.uk/typer/dragruns/10secquartermile.jpg[/img]

[url]https://youtu.be/-WrfaZF0UlQ[/url]

Mate.. i think i may not be making myself clear enough. I am ot necessarily chasing tens... jhst want to get as close to it as possible with the gear im choosing

If i ran 11.48 @ 120mph i would be more than happy.
My biggest issue is wanting to retain a tmic and stanard mm mount turbo

[QUOTE=Bram;838299]Could also look at a blouch dom 3. Its a stock location gt3076r but it has a billet wheel (kinda like a gtX3076[/QUOTE]

Ive got a Dom3.
I cant seem to get more than 320WHP out of it on 98.

[QUOTE=Hurtenstein;838312]Ive got a Dom3.
I cant seem to get more than 320WHP out of it on 98.[/QUOTE]

Thats pretty gay. I get more from my dom 2.5. Must be something lacking with your setup for sure. Should be able to get 350 - 400whp easy enough with correct support mods on a dom3

My thoughts exactly.
Is only 98 though.

[QUOTE=VUSSUTE;838183]

Im aiming for 370whp+ on 98 ron (or a [B]high ten second pass[/B])
[/QUOTE]


Sorry mate I just read this bit.

Just didn't want you getting disappointed with unrealistic expectations.

Anything sub 12 in a road car is quicker than most and will be a hoot to drive.

I think my most favourite car that i've owned was a GC8 with around 400atw. I think it did an 11.7 and it was great to drive. I hammered it on a regular basis and it never missed a beat. I sometimes wish I'd stopped there.

I'm sure whatever you end up with will be a great combination. Don't get too obsessed on figures just enjoy it when its all done.

Yeah mate.... i think i did get to hooked on figures

I have been out of the wrc scene for nearly 13 years.....
Back then (for some strange reasons) hp readings were different.
The rigoli brothers where running 10.001 secs with 420awhp in 1 car...
11.4 with 340whp in another
And 12.0 with 270whp.

Seems hp figures are suffering inflation lol

[QUOTE=VUSSUTE;838316]Yeah mate.... i think i did get to hooked on figures

I have been out of the wrc scene for nearly 13 years.....
Back then (for some strange reasons) hp readings were different.
The rigoli brothers where running 10.001 secs with 420awhp in 1 car...
11.4 with 340whp in another
And 12.0 with 270whp.

Seems hp figures are suffering inflation lol[/QUOTE]

Or your getting HP confused with KW.....

Generall rule of thumb is to multiply the HP figure by 0.74 (3/4s) to get the KW figure. And multiply the KW figure by 1.34 (1 + 1/3) to get HP.

Nope.... hp mate..

Wierd. Because those numbers and times youve stated would make more sense if they were in KW. In HP its pretty hard to believe.

That's a bit like saying Andy Forrest runs 7's so mine should be in the nines.

IF they did manage a 10 flat with only 430whp then the car had lots of stuff cut out from it.

It would need to weigh well under 1000kgs to do that.

[QUOTE]the 96 Rex was the fastest, after that article, rigoli did some more mods and got from 443hp @ wheels to 500hp @ wheels and run a 10.01 sec pass with that car, then he sold the engine and running gear to a customer who put it in a blue rex and added a 50 shot of nitrous and run a 10.5! Go figure[/QUOTE].

Is this the 10 sec rigoli wrx you are talking about? According to this post it had 500hp when it ran 10.01.

Ahh ok guys. I stand corrected. I had a magazine from that era that stated 420awhp. May have been a typo.

At end of the day you guys know far better than me having done it yourselves.
Ill adjust my expectations

I havent done it myself. I have a forester with 340hp and the best i could manage was a flat 13. But drag racing isnt exactly my preferred use for the car. Its nice to get a number on the board. But i think there are far better things to do in car than drag racing.