Cant decide if needed, so hoping for some advice Car is 93 WRX with obviously side entry TD05 at present. Aim is 320-330/310-320 ish, with gearbox preservation quite high up on the list of priorities

Can I reach the target without going F/E route? Brief spec will be:

Apexi PFC, power intake, AVC-R
HKS Headers
HKS FMIC
H&S up-pipe
550's, FSE Pump, Fuelab Reg
2 1/2 in full de-cat

 

Yes

 

Check my ' LOCATION '

 

I'll have a look for your spec on that, I'm sure I've read it somewhere before...

 

the only reason for front entry on a td05 is to fit it to a post 96 car.

my old car (95 wrx) made 419bhp on a 90 deg 05/06, to be honest i think the 90 deg actually helped as my car didn't have surge problems

 

What mods?

Nathan

 

td05/06 turbo
ion headers
front mounted intercooler
255 pump
reg
550cc injectors
full 3" exhaust
and a few other things

on a standard engine running 1.35 bar boost with optimax and NF booster

 

what RR was that on?

 

well lane

419bhp and 370 lbs of torque

 

thought it might be

 

meaning what???

 

exactly that.

 

Jesus thats i great figure, i was told around 300-350 mark bhp for my 1995 WRX running the following, will have to get on the rollers to see what it really is

HKS FMIC
550cc Denso Purple Top Injectors
Apexi Power FC ECU
Front Entry TD05 Turbo
Blitz Plugs
Hayward and Scott 3 inch wide mouth downpipe
Parallel Fuel Modification
Apexi AVCR running 1.5 bar
HKS Super Flow Induction Kit
Apexi Full Stainless 3 inch System from Turbo Back
SX Fuel Pressure Regulator
Walbro 255lt hr fuel pump

 

Your TD05 is probably a 16G and not a 20G so the figures you have been quoted are correct.

Would be good to get it on the rolling road to see where about between 300 and 350 it is.

 

What figures could a 20g give me then at 1.5 bar, may go for one of these then

 

With your mods...

Between 370 and 400 ish

 

mmm.... sounds good.

Can you pm me the mods you have done mate on your car running a 90 degree TD05?

cheers bud

 

20g not necessarily a good match for a non-STi rev limit.

Figures will depend on which RR you choose to use.

 

my mods..

blitz nur spec R decat mid & backbox.
Magnex twin dump decat downpipe. ( wrapped )
Megan headers/up-pipe ( wrapped )
Standard 90deg TD05 16g.
255lph fuel pump.
standard fuel pressure regulator.
Parallel fuel lines.
Denso 550 injectors.
VTA oil breather pipes.
Apexi induction kit with homemade heat shield.
Hybrid FMIC.
Standard DV.
Apexi PFC ecu. ( Mapped by Paul from Zenperformance )
GBE. manual boost controller. ( running 1.5bar )
NGK PFR7B plugs.
4.5KG Flywheel.

Other mods to the car but none that would effect BHP/Torque

 

BOB'5 is spot on with that comment.
The 20G is better suited to cars with an 8000rpm rev limit.
Cars with a 7000rpm rev limit are better suited to the 16/18G

Your car would still probably make the power I mentioned but would spool up later and would probably make a slower road car.

 

sorry but i don't agree at all, the spool is better on a 20G than it is on a 16G and it produces more power right through the rev range.

ask anyone that has run both turbos on the same car with the same mods!

 

Interesting comment.

Everything I have read and been told has suggested the opposite, so put me off the 20G and was thinking of getting the 18G but did not want to spend that much $$ for 30BHP.

Hope your right. but have my doubts.

 

You can't really get the 20g running big boost too early due to compressor surge so you limit the boost below 1.2bar until about 4000-4100. on a UK car this gives you too small a power band IMHO to put it to best use.

Personal choice though

Russell

ps - on a UK, TD05 18G is AWESOME, pulls like mad and no real surge issues, great for a UK car to be used as a b-road bomber

Russell

 

i am not a big believer in scoobynet folk law, i say what i see even if it does go against all the 2nd hand "knowledge"

 

Been there 1st hand , And agree ,with jonny ,

 

Just shows you how Scooby myths develop. Guys that have not done it read some crap somewhere and repeat it and it soon becomes an accepted fact for the "experts" who know more about the topic than the guys who have objective observations from personal ownership.

 

Too true about SNet fish wives tales.

Ross, David Sim (simbo on here) from Oldmeldrum had a very well specced 2.0l build and stuck with the 90 degree entry on his 20G. The last i'd heard he was in the middle of fitting an EJ257 but it may be worth catching up with him at one of the Old Mill meets?

 

Thanks Carl. Not aware of David's full spec, but did know he had a '93 with a lot of mods and an engine that went pop eventually

I'm hoping to avoid getting up to what I think may be the danger zone for the old WRX engine and gearboxes at around 340-350+. Turbo will remain at 16G for that reason.

This will have cost me very nearly £4k once its all on. I dont want to have to put on a £2k 6 speed and £2-3k rebuild on top of that

 

Quite right Ross. You're aiming for a similar stage where i got to with my last one before it just wasn't viable to go any further. What's the point in going much beyond 330bhp just so you have to blow ridiculous amounts of money on gearboxes etc?

 

I don't know why but some engines respond better to the same mods than others and somewhere between 330 and 350 bhp on a Classic with TD05 and 440 cc injectors is a very financially efficient target. Getting circa 400 bhp is another signifigant budget hike as is an uplift beyond that again.