vf43

[keithmoilanen]

found one for a good price. should i get it and will it be fine to put into my car? or get a twin scrolled vf 37? or buy a td05? i have a td04 that i was thinking to put in?

[kimokalihi]

Just use your td04. You're getting ahead of yourself here. Any bigger and you need supporting mods. Injectors, engine management, dohc heads or performance cams, upgraded fuel pump, wideband o2 sensor and gauge, intercooler (even with td04), exhaust, etc. Seems you have a lot of research to do on these cars. Maybe suspension mods are a better choice for added fun in handling. Cheaper and sometimes more noticeable and safer. New performance tires too and brakes can't hurt or new performance pads and new rotors. Upgrade brake lines. Lightweight wheels are a good mod. Lightened flywheel or pulleys. Lots of ideas. Just realize if its more power you want its gonna cost a lot of money. Estimate a total and multiply that by 3 and you may be in the ballpark of what you wind up spending in the end.

[wtdash]

Estimate a total and multiply that by 3 and you may be in the ballpark of what you wind up spending in the end.

Agreed.



If you get the VF43 - a good turbo for spool and top end- get the Rob Tuned ECU and supporting mods.

Put the TD04 in now, presumably w/an IC and run that to see if you want "MORE".

Td

[keithmoilanen]

i have a tmic already and exhaust so i guess i should just install the tdo4.

[keithmoilanen]

kimo what suspension set up should i go with i have 17in rims. and go off road a lot.

[MikeyMeyagi]

i ran a vf39 on stock management with a fmic and dohc heads, ran good, made decent power. kept it under boost cut and my afr's were fine.

[keithmoilanen]

so i should find some heads swap in turbo then work on suspension

[keithmoilanen]

is a vf11 the size smaller than the tdo4

[wtdash]

is a vf11 the size smaller than the tdo4

Yes.

And for future reference the #'s after a VFxx such as VF11, VF43, etc. refer to the chronological order /age, NOT the size.

For the US STi there is the VF39, VF43 and VF48 from '04-'12 (last I read) - they are all very similar in size.

The largest turbo in the VF series is the VF22 (IIRC), which was used back in the late 90's on the WRX/STi.

TD

[keithmoilanen]

thanks very much i love this site people are so helpful i am learning so much. what part of idaho are you in i am around the boise area.

[MikeyMeyagi]

get yourself a set of 97-99 dohc 2.5 heads and the intake manifold. huge improvement over the 2.2 heads with their dinky ports and valves.

[keithmoilanen]

Where should I look for them.

[matt00rs25]

nasioc or rs25

[92ColoradoTurbo]

get yourself a set of 97-99 dohc 2.5 heads and the intake manifold. huge improvement over the 2.2 heads with their dinky ports and valves.

Does this require any other supporting mods? or do they just slap right on like legos?

[kimokalihi]

You have to drill and tap the passenger side head for coolant and oil for the turbo. Pretty easy to do before you install them.

[Someperson]

timing covers, coolant crossover pipe

[92ss satinsvoice]

Don't forget the oil dip stick pipe. The stock one will not bolt up the the dohc heads . Plus you don't have to tap the head for waterline for the turbo. Just hook them up with the heater core. But tap the oil return though, that's a must.

[cj91legss]

Don't forget the oil dip stick pipe. The stock one will not bolt up the the dohc heads . Plus you don't have to tap the head for waterline for the turbo. Just hook them up with the heater core. But tap the oil return though, that's a must.

That's a great way to get hotter heat to your blower motor!!!!!