my build

[jef]

got this build going on in a uk tutbo shell

what would people expect this to make, power wise or any other relevant info.

as follows, and due to be finished build early to mid september, but still to run in and final mapping by legend Mr F,

Subaru EJ 21 Turbo steel / forged build

Closed deck block

STi Crankshaft Nitrided type

APi custom steel conrods Cosworth stroker

APi custom forged pistons Cosworth stroker

NPR piston rings

ACL race bearings 2 sets required

Gasket seal kit Cosworth sump baffle

APi uprated oil pump

APi custom Nimonic valve set [ 16 ]

APi custom titanium valve retainers

APi custom dual valve springs

Kevlar timing belt

APi custom head stud set 11mm parallel

Cam pulleys and belt idler set

Modified oil pan with return system for catch can

Cam belt covers - inner and outer

Bosch 7 bar competition in tank fuel pump

Twisted turbo exhaust pipes set

Tial wastegate

Air bleed valves for wastegate control included

3 bar Map sensor

Garrett GT35 or similar billet twisted turbo .63 housing

APi / Mocal oil cooler kit fitted

APi custom return-to-sump catch can kit

APi JIC type parallel fuel rail kit

Inlet spacers to suit Vers 5 heads

Oil

Coolant

Spark plugs

Rotated inlet complete Vers 5 inlet manifold

Injectors 1000cc

550 hp clutch Comp clutch twin paddle set up

Blue samco radiator hoses

Samco inlet for turbo.

so anyone care to hazard a guess?

i know the figure i want and itll be on a simtek and v-power only

cheers

Edited August 2, 2011 by jef

[ciaranrb5]

With a GT35 probably mid to high 500's if not more, put it this way your clutch will be on the limit

What gearbox will you be running?

Edited August 3, 2011 by ciaranrb5

[jef]

thanks, yeah im aiming mid 500s im hoping for

just a factory 6 speed box, i think its a uk box.

cant wait to get it back lol.

hope the rest of it holds together, for a while at least

[fai17]

Mid 500 to 600 but a billet 30 would be my option for a 2.1 build.

Youll need a twin plater or a act clutch like Andy.

[scooby222]

with my limited knowledge i was thinkinng a 35 would be pretty laggy on a 2.1 - but depends what your using it for?

[jef]

think the turbos got a .63 housing which is small enough to help keep lag to a minimum?

but open to suggestions?

good to here some differing opinions , thanks

yeah twin plate clutch is sorted.

already got the RCM gt spec 2 headers and up-pipe, full exhaust heat wrapped

anyone running same turbo as me, on a 2.1 and hows lag - if similar set up?

cheers

[ciaranrb5]

6 speed will be fine

GT30 billet would be better, you will most likely not see full boost till 5k revs onwards

[colin_ross]

Would expect 600 plus on that spec.

Best to chose a turbo size after you've chosen what the car will be used for (road, track, drag etc).

[jef]

cairanrb5

is that right revs wise?

didnt think would be that late.

obv ill be maintaining the engine in the best way, with oil changes ect.

what would you think would be a safe-max rev limit on that spec?

dont like the idea of taking it over 6.5 - 7k rpm tbh

wont be driving it like that all the time but obv going to be driven fairly hard now and then on road, and hard on the occasioanl 1/4 mile, RR sessions, possibly a few track days per year.

my builder has definatley advised that turbo with the given spec

[jef]

spoke to builder tody, sid with a good mapper and with the smaller exhast housing wont be overly laggy atall.

his words were we buid these engines day in day out and with a very good mapper, can be made to have minimal lag - not totally elimiate it obviously but shouldnt be an issue on this specced engine.

so im happy with that tbh, so i have a recommended running in procedure - anyone reply how they would run it in, including oil types, milage ect.

not trying to catch people out, but just gathering information and differing opinions - to help give the widest overall veiwpoint. from there i can use the information.

appreciate anyones input

cheers

[ciaranrb5]

I think you will struggle to get 600bhp on a .63 housing going from experience. I stick the fact you won'y get full boost till about

5k rpm though. I get full boost on a 2.1 equipped TD05 20g at about 4k rpm and it is alot smaller than even my GT30R

[jef]

cheer mate

no the build was started and set around my requested target of 550bhp mate

600bhp was never mentioned by me or my mapper, altho ive seen a few mentions above.

just to clarify that,

any info on running that engine in?

[scooby222]

who's building and mapping for you? just out of curiosity - if your quite happy with running that turbo then thats the important thing, andy forrest that maps most of the imprezas round here recomends the smallest turbo for your hp aims thats all.

running in i believe is a thin oil for 50 miles, then slightly thicker for the next 950 miles, avoiding boost but not sitting at one speed or revs for any prolonged period, runs up and down the bears varying engine speed between 1500 - 3500/4000 rpm in your case at a guess. change to full fat oil at 1k then supposedly gradually increase revs in stages - ive just gone for broke after 1k and its never done any harm but that was standard engines

[ciaranrb5]

Here is the opinion on running in of a few people who are in the know

http://bbs.22b.com/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=11;t=000843

[jef]

great link there mate thanks!!

ill just go with my builders/mappers advice i think

1k mineral 10w40, drop oil an filter,

2k on semi-synthetic 10w40

then fully synth from then on,

i bought this, 10w40, for normal raod use,

and 10w50 fully synthtic for tarck use

.

[scooby222]

take it from the spec list its api building and mapping for you? they have a good reputation, cant imagine david steering you wrong mate

[jef]

ok guys

anyone care to guess what the best 1/4 mile time would be on this set up?

eliminate driver error and ultr slow reactions, and what roughly the best it could go

fully trimmed btw.

i am btw a very inexperienced track/and 1/4 mile driver so wont be hitting the cars best, but itd be nice to see how far i am from the cars true potential.

got a feeling next year it could be going on a diet lol

[ciaranrb5]

I managed 11.68 with 400ish BHP so you should manage low 11's if not a 10

[fai17]

550 in a classic should see 10s with a good driver. A bad driver in the same car might do it in 13s.

[jef]

fully expect to be 13-14 on my first day up there, with hopefully improvents as i clock up some runs

would ultimatley love a ten second car - that would be me truly happy and satisfied, my lifes goal met and settle at that

or far more likley, hit a ten if its in me or the car, then decide - "its only another second to knock off" lol

wheres my builder lol

[fai17]

Who is building the engine and what turbo are you finally going for.

You are to be looking into fuel pump swirl pot set up too.

[jef]

would be quite surprised if a fully trimmed uk with my spec with a good driver could hit a ten in that, more likley a low 11 i think

but never know.

fai 17 pm me mate - i tried to pm you and something wasnt right?

cheers

[jef]

fai 17, you cannot receive pm's

i dont know why but it wont let me send any to you, sorry bud

[fai17]

I acn't pm you either...how strange?

[jef]

were destined to never communicate! its a conspiracy!!!