burt2000

iTrader: (1)

Just wondering if anyone has done this, kept the standard backbox and decatted the rest of the exhaust and downpipe....i got a V6 type R yesterday and although i like the silent standard system i would like to release some of the scooby burble

i had a full decat magnex and H&S downpipe on my previous turbo 2000 and it sounded great on boost

would there be any restrictions in the standard sti back box or would i be better just going with a full system again? I dont like anything thats too loud though, any suggestuions lads?

cheers

Barry

STIV5_Wagon

iTrader: (2)

Hi Barry,

I Run a RCM Decat Downpipe (3" --> 2.5"), Decar Magnex Center (2.5") and standard STI backbox.

Sounds ok on boost, but Im changing mine, as its too quiet for me, plus it feels like its a tad restricted on the STI backbox now.

Hope this helps

Peter

burt2000

iTrader: (1)

Thats a great help peter i think i will just go with the same set up that i had on my last impreza H&S downpipe and a full decatted magnex as it sounded awesome when on boost...

im planning a remap and possibly bigger injectors and larger IC down the line so as you mentioned the sti backbox will probably become restrictive

its doesnt half go well as standard though! :-)

STIV5_Wagon

iTrader: (2)

Glad to be of help.

Next on the list for me is
FMIC
GT Headers + uppipe
Magnex 6x4 Rear box

Then a remap, should be seeing 340 bhp by then

P

burt2000

iTrader: (1)

are you keeping the standard VF28 Peter? what power/boost are they good for and does anyone know what boost a standard type R runs on the VF28?

Thanks

Barry

STIV5_Wagon

iTrader: (2)

I will be for the forseable future, i think it will be pretty maxed out after the remap, I dont know what max boost they are capeable of safely.
I know that mine boosts at 17psi (1.1Bar) Standard, and I believe yours should boost the same.

Im looking to go down either The VF22 OR TD05-20G, as with the air filter, full st.st headers, uppipe, decat downpipe and straight through system will give me around 380 - 390BHP with remap maybe more

peter

burt2000

iTrader: (1)

sounds very similar to what i would plan to do in the future also Peter, i was looking on the Andy F website and the sti's and type R's seem to be able to take up to stage 3 no problem

Level 3 370-400 bhp

Full Decat turbo back 3” bore exhaust system
Tubular exhaust headers and flow matched uppipe
Walbro 255 l/hr uprated fuel pump
Fuel Lab turbo specification fuel pressure regulator with fitting kit & gauge
High Flow multi spray fuel injectors 550cc (440cc std)
STI V7/8 TMIC & matching undertray
0r
Front mount intercooler
AFP 05-20G custom ported turbocharger.
Stand alone fully mappable SimTek ECU with twin maps, permitting use of different fuels or octane booster and elimating the MAF sensor
Apexi Induction system
NGK PFR 7B uprated spark plugs

Note The MAF (mass air flow sensor) on this model is particularly fragile, sensor failure can cause considerable engine damage on Level 3 and above.
The Simtek ECU does not use the MAF, eliminating the requirement to change this sensor regularly.


370-380bhp with those short ratios would make it a pretty sharp motor

STIV5_Wagon

iTrader: (2)

Yep, on paper, its as easy as that. Lol.

It hurts the wallet though.

P

TonyBurns

iTrader: (3)

I wouldn't recommend going above 350bhp on the standard internals on a type R, its been a while since looking at andy's website but you may find it says for the stage 3 and 4 upgraded internals are required on certain models, as the jdm sti's have very similar rods to the rest of the classic range (ie the same) they need changing unless you want a piston hole in your block

Tony's version 5 type R mods.

VF22 hybrid (MD series turbo)
550cc injectors
FMIC (HKS)
Uprated bitch of a paddle clutch
Full 3 inch decat, H and S headers and up pipe (wrapped with the good stuff ) and by the looks (and quality) a 4 inch H and S backbox
HKS filter (soon to go and replace with original box system as don't need silly power )
Undecided whether to stay with ecutek or go simtek, though car use to have water injection (not needed for what I want and Link ECU ).
Plus there are a few other bits, knock and lambda link, KS3 going on next week along with the AP 330mm godspeed kit
The more you change, the more you need to protect the car, hence items like the KS3 and AP brakes
Oh and a 20G will be laggy as hell and you will need a clutch and new gearbox

Tony

burt2000

iTrader: (1)

would an 18g be a good compromise? id like a real 360bhp think ill save the extra and get the simtek along with 550's, walbro and a V7/8 STI top mount

TonyBurns

iTrader: (3)

The VF35 would be cheaper and just as good, you won't need much with the shortened gear ratio's, plus the DCCD will make life interesting for you (plus lack of abs).
340-350 will make a fast road car out of a type R without straining the internals.

Tony

burt2000

iTrader: (1)

I had a vf35 on my last subaru Tony and to be honest the VF28 on the type r feels alot stronger in terms of the power delivery,and is definitely a quicker car

I thought the vf35 ran out of puff before the vf28 would? maybe it was just that my turbo 2000 had a very mild map due to our 97 ron fuel but it also had a v7 sti top mount, walbro,FPR, full decat and apexi power fc but the type r would kill the uk car even though andy reckoned it was around 300bhp.....it must be the gear ratios in the type r or sumthin

TonyBurns

iTrader: (3)

The VF28 is a smaller turbo than the VF35, the 35 goes about 20bhp more than the 28, though if you want you could go for a VF34, slightly less down below but more up top over the 35 (as in it pulls harder to the red line )

The gear ratio's are far better than the UK cars, 5th is about 12mph shorter to the top end, they are good still not indestructable though

Tony

burt2000

iTrader: (1)

i take it thats what makes the type r'ss so snappy, i was always under the impression the lower the VF number the bigger the turbo and the vf35 was quite small but spooled up very quickly.
My uk car was running 1.35 bar boost on the VF35 with supporting mods, but having driven the type r now a few days i know it would easily be faster than the previous uk car but is supposed to be only around the 280bhp mark(im running it on v power btw)...but unfortunately when that tank runs out ill have to use SUL and NF octane booster as we dont get V power in N.I which really pisses me off :-(