Hi there, pretty new to the scooby's, need some tuning advise, ive got a 01 impreza wrx which i would like to get more power out of, currently has s/s decat, middle and rear exhaust, sti top mount intercooler and baileys bov,would like some advise on whats best for power next? was thinking sti pink injectors and a td05 turbo? is this the right way or should i take a different approach? any ideas??

 

I'd go for a cold air intake and a remap with a good, experienced tuner/mapper... It all depends on how much power you want and what you're willing to spend really...

 

All mods as you describe are ideal for wrx, also panel filter and an uprated fuel pump.
Then get it to a good mapper and it wil be yeehaaaa

 

Yea cold air feed sounds good, any certain brands to look out for? would like to be around the 300bhp mark really, would the standard engine be ok if i replaced the turbo or would i be putting 2 much strain on it?

 

upto 330 bhp will be fine for your internals and transmission

consider a TD04H from andy forrest , like yours but the hybrid version, works very well by all acounts , or a vf34/35 or TD05/16g

deffo fuel pump ,panel filter (STi or green) and remap as well though

AndyForrestPerformance

 

nicked from andys website

290-310 bhp

Full Decat or Sportscat exhaust from turbo back 2.5 or 3” bore.
Decat uppipe Pre turbo
Walbro 255 l/hr uprated fuel pump
K+N panel filter
Ecutek Custom ECU recalibration
Twin boost set up for high/low power switchable in-car
AFP 04-H custom ported hybrid turbo
High Flow multi spray fuel injectors 550cc (380cc as std)
Uprated turbo to intercooler 'Y' pipe
NGK PFR 7B uprated spark plugs



300-320 bhp

Substitute VF34/35 or TD05-16G turbo in place of AFP04H for additional 10-20bhp but with slightly later turbo spool up.



i was right then

 

IMHO you can't beat the VF34 for bang for buck performance..
With the mods listed above substitute the uppipe only for a set of Lateral Performance or Roger Clark tubular headers , pop a front mount on with a CAIK and you should see 340 - 360 bhp....



From a 2004 car but you get the picture....

Previous graph from the same car on a stock TD04 which listed our chosen mods...

 

Is the front mount really necessary if he has an STI8 TMIC already? Especially considering most FMIC's I've seen so far require cutting of the crash impact bar at the front?

I've got a FMIC on my WRX, but I'm going back to an STI TMIC this year (350 odd bhp on a td05-20g), due to the fact that the car now doesn't feel as stiff at the front end (with the cut bar) and the fact that in an impact the bar may well save the passengers / engine.

 

i got the same car. but only done zorst (for looks)
how hard is it to fit a TMIC? what price did you pay?
does a fuel pump help if i only use 95ron

 

A TMIC from a newage STI should fit straight on (but you may need the pipe from the intercooler outlet to the throttle body) as the WRX one might be too short (I think this depends on what year the intercooler comes from, however).

 

Think im gona get the injectors and uprated fuel pump and a re-map, any one know of the best place to get the re-map done, pref in the south east london area?

 

simon roe - jolly green monster on here
paul blamire - zen performance on here

 

www.JollyGreenMonster.com - Engine management specialist

Zen Performance - Performance upgrade solutions for Japanese cars

 

Re Crash bar, we've had an improved version made, using two square box sections welded together. It gives room for the FMIC, but still bolts stiffly across the front, doubling up as a hanger for the intercooler.

 

In my opinion, a front mount is a backward step on a newage car if it is already fitted with an Sti 8 TMIC and aiming for circa 350bhp. It may even make it slower despite possibly showing a few more bhp under steady load on the rollers.

Andy.

 

the STi8 intercooler is ace.. as Andy says... especially if aiming for that power.

 

How about if it was a 2.5 with a 20g?

Edit: thread hi-jack warning

 

Ideal

I still use an Sti TMIC on my 2.5 Sti RA with a 321T running over 450bhp.
That includes track use, 20 laps of knockhill the other weekend and it was fine.

 

did someone say VF34??

also would prob get a bit more on uprated headers,

 

you can go round bends ?

 

Only in White cars, not Blue ones

 

What benefit will a Hyperflow TMIC give over the STI TMIC?

 

what are the benefits from using an APS top mount over an STI top mount?

 

unfortunatly often the undertray is less efficent at sealing air flow through the intercooler once the tmic is changed and it works no better and sometimes worse than the sti8 intercooler which is very good.

Simon

 

IIRC the Hyper Flow TMIC has not got any bigger surface area but deeper/taller and with a little gentle trimming of the undertray seal to accomadate the deeper/taller I/C, works better than the STi8 I/C. The internal machining/design on the Hyper Flow is better than the STi8 allowing the Hyper Flow to, err, flow better than the STi8 and the Hyper Flow has Welded tank ends, not crimped like the STi8 I/C, so can handle more boost if your turbo can make it

STi8 I/C is a great top mount intercooler dont get me wrong, but IMO its not the best.

APS TMIC has a lot larger surface area, which as Simon says, is useless when the seal on the under tray stops air getting to the extra surface area.