any ideas???

 

Turbo
Injectors
Intercooler
Fuel Pump +Regulator
Headers
Exhaust
Panel Filter

I am sure there are more things that I have forgotten, but this would be a good start

Good Luck

Martin

 

Sorry, forgot about the TEK3 remap

Martin

 

fuel rails are a good idea, otherwise cylinder 3 will go pop.

forged pistons would also be good if you intended to use it a lot.

 

Neilo

Why do you think Cylinder 3 will go pop

Also for 350bhp you dont need to go internal - that would not be necessary for that level of tune if you wanted a guaranted over 400bhp then yes maybe but not for 350..........

for 350 you'd need:

Tek map
Fully decatted exhaust/decatted up-pipe
air filter replacement
Bigger Turbo
Fuel pressure regulator and 'maybe' bigger injectors

ps - fuel rails!! - I wouldnt even consider this at 500bhp!

Turbo is the biggest restriction to reach that level of power

 

my reasoning was just that the WRX engine (newage) is not overly strong IMO, and the fact that a mates went pop (through cylinder 3) when he had 345bhp goin through one, due to uneven fuelling, which is apparently a common fault in these engines. I think (and im willing to be corrected on this of course) that if you asked anyone who had blown their engine due to inadequate fuelling which cylinder went they would say number 3.

I guess its just a case of being safe than sorry......call me a stickler if you will

For 350 you dont have to go internal on an STI, but for a WRX i think you do. IMO. i think most people who have gone over 300bhp on a WRX have uprated at least one or two components internally, be it pump, injectors, intercoolers whatever...

and i should have said "may go pop", instead of "will go pop"

 

and i believe you would definitely need bigger injectors to run over 350 reliably, the 440cc injectors, by rough calculation of 20bhp per 100cc of injectors works out at 352bhp

20 x 4.4 x 4 = 352.

Coming from people who make injectors etc, so dont ask me why!! :P

Neil.

 

If you just wanted 350bhp you could just raise the pressure a bit more....... I would agree that over 350bhp you would definately need bigger injectors though

It wouldn't be worth going internal for a misely 350bhp...... You can get around 300bhp on exhaust/filter and exutek on a wrx - add a bigger Turbo and reg and you should be nicely at say 340bhp or maybe more

Dont think I'd want to spend thousands to get that 'extra 10bhp'

On the engines that your mate had - what was the state of tune........ was it mapped properly or did it just have boost/fuel controllers or a bleed valve
(read Dawes)? - just interested. I dont yet know of anyone personally whose engine has gone bang (well one but then he was mapping the car himself!!)

 

It had the G-Force stage 3 package......if you look on the g-force website his is the dyno sheet that they use for it.

He didnt use a dawes, i do, but its not set very high at all, not even as high as a PPP car, and ive thoroughly tested it at that level with delta dash etc for knock correction and its lower than a mates tekked car in that respect...

Im not 100% what stuff they use in the g-force package as there was a fair bit.

and i agree, why would you spend 1000's for a mealy 10bhp.....once you get up to that sort of level anyway you dont notice a "vast" about of speed difference from say a 320bhp car.....to a 370bhp car all IMO though im not doubting anyone.

and we all know youve got a bloody grunty STI5 anyway measly 350....:P sounds very snobby hehe.

Out of interest i know you have atekked 04 wrx, did you decat it first? or have you just done more simple mods to that?

 

Neil

G force........ issues - Not saying anything.................................oops

wrx04:

Just has ecutek so far and nothing else. But am going the quiet route - so I have acquired an sti9 mid and rear and will be getting decatted downpipe. I have the sti air filter...... oh and need a decatted up-pipe (nasty thing)

Not going down the aftermarket airfilter route - destroyed two Turbo's with a crappy Blitz

Aint going any further - its just not worth it on a wrx - better to get a stronger sti - but the new ones - oh dear what an awfully uncomfortable seat and as I have spent circa £6k on my stereo I dont want to get rid just yet!

Moi........snobby - first time I've heard that - but I've been messing with the Scoob for ages - had an Escort Cossie previously - within a few months it had 420bhp with NO lag (2.2 Engine Nice - and over £10k pocket change!)......... But with the Scoob Jeez I've had to wait - no-one in the early days (read 1999-2002) had the faintest idea

Will be at G Force 4 September and Turbo's are not at there best in the heat so I'll be hoping for at least 450bhp/390lbs - if not then its stage 2 = 2.33 litre, with nitrous and a large Turbo............. and say **** it - if it dont get over 600bhp then I'm buying a modded Skyline!!

 

yeah im aware there is a bit of hoo-har at g-force at the mo with chris leaving, i "should" be there on the 4th as well, depending on where i am at the time....

I agree with not trying to max out any sort of huge power on the WRX, which is why i am going a nice safe route myself, uprated turbo, and loose the cats, although sports cat is still an option. Im just looking for 300bhp and 290-300lb, its my daily driver after all.

 

Neilo, just what Im going for. When I had mine mapped by Bob he said 300+ was safe.. the gearbox and clutch will go before internals

TSL said 300+ was a no go

its all down to how much you trust your mapper as at the end of the day he's the one who tells the car how /when to use the engine ( having watched the results of mappers on our cars I would never go anywhere else but Br developments or Pat .. these guys have seen very little or no complaints and if there was problems they always seem to sort it out)

where clutch and gear box , will depend on how much you want to keep up with those STi's

I ve got to do my brakes first ( they are really crap std,, I can see me ending up in a bush soon, a couple of tight corners in a row and they fade badly and become very spungy)

think Im going down the sti top mount + turbo next but this will be Chistmas

 

im still waiting for my brake kit.......been waiting over a month now im in the same boat as you!

 

im sure martin is forgetting he got 352bhp from an sti tmic and were they standard injectors as well

 

Hi people thought i would add a few bits, i have a 2001 wrx which has the following mods done to it

Tec3
Panel Filter
Uprated fuel Pump
vf30 turbo
sti7 injectors

i have had three engine rebuilds the last one being caused by feuliing and detonation probs which caused number three to go again !!!!

when i was running a tdo4 and standard injectors i produced 283bhp on ul fuel which is a good figure for the standard turbo.

Ill let you know how it goes at the next RR day !!!!




Tony

 

its interesting to see someone backing up my cylinder 3 point from higher up the thread!! have you taken any steps to avoid that again?

 

I have replaced the standard piston again !!!!! but this time i will be a little easier on my engine ( too many high speed runs ) The problem i had was i never remapped when i changed turbos and i did not have the injectors fitted at the same time which ment my fueling was all shot to ****e !!

Pat Hearn will be mapping it which i hope will sort out the fueling then ill add a bigger oil sump as soon as funds allow. I wanted to take the car to 350bhp but i think with my driving style this is always going to be a problem .

Like i say i will keep you all posted ill be getting the car back hopefully on Monday



Tony

 

3 engine rebuild's , think I would have sold up

how do you find the car now compared to 280 bhp... think there's quite a few of us at this state of tune who are thinking about upgrading

Rich

 

 

Loony tune

Who did yer mapping in the 1st place - for an engine to go is dire...... would be shocked if this happended if u had had advice from Bob or pat (the regarded experts)


Neil

Talk to me if you make the 4th - I dont know the names but will recognise the faces - I should have grey sti5 and wrx04 Blue that day

 

will do.....ill be in the silver 03 with the prodrive spoiler, easy to spot.

Neil.

 

The new vf30 turbo is alot better much the same as the Td004 unit until 3000rpm then it hits like a boot up the **** right up until red line. It makes a lot of difference although i think the gearing on the standard gear box could do with changing im looking at maybe putting in a type r unit as the gearing is shorter thus giving me better accerlaration.

The car is more responsive through the gears too third and fourth are absolutly mind blowing it just pulls and pulls until you change up even in fifth it just wants to keep going. Might even change to a TD05 unit in the near future


tony

 

Original map was done at TSL but Richard, then the bottom end gave up ,then i fried a piston had the engine rebuilt and had 5000 trouble free miles then put the bigger turbo on and not had it mapped so it went pop again lol my fault i will never learn.



whats happening on the fourth?

tony


PS you are right Pat is the expert and he has mapped the car several times now and is doing it hopefully on Monday agin .