cmpequeno

in andy forrest site the wrx has 380cc injectors... bummer

Tidgy

if im honest, the vf34 isn't brilliant value for money, the vf35 is prob the better value, due to it being readily available second hand, however if your going new then its prob one of the better value

Tidgy

if its got 380's then chuck 550's at it.

gives a bit of head room

Janspeed

iTrader: (1)

But is it good the VF34 (new) or is it sh1te?

Would choose something else?

Tidgy

its crap, walk away,



nah only joking, its whats on mine , a huge improvement on the old td04. would def recomend one

Tidgy

Janspeed

iTrader: (1)

Nice!!

What was the Torque increase over the original?

Jolly Green Monster

iTrader: (4)

fmic is overkill on a vf34 or 35 etc..

sti tmic.. with the undertray from the sti bonnet and bonnet scoop etc..

Simon

New_scooby_04

iTrader: (4)

Unless you can pick a VF34 up at a comparable price, I'd go for the slightly quicker spooling VF35

Ns04

cmpequeno

Jan, listen to Ns04, I have his thread subscribed ( about his car ) and it's sweet
after reading it you will find out you don't need all those parts you mencioned before.

Janspeed

iTrader: (1)

From the States at a great price even after import.

So the VF35 is quicker at spooling up, only that?

Janspeed

iTrader: (1)

The whole idea is to have as much "spare room" as possible allowing for longer lasting parts and eventually another upgrade.

Comfort is another issue, I want to maintain the level I have now, and as such I am also looking at an upgraded clutch, quickshift and so on.....

New_scooby_04

iTrader: (4)

Ta mate.

Part two coming soon. I've just gone to an FMIC, with some rather good results out of the little ole VF35 (particularly with respect to torque). It should be noted that this is on a classic though, where the STi 8 intercooler is not as attractive an option at this level of tune as it is with the new age WRXs as Simon pointed out

Ns04

cmpequeno

what about those cheap £195 uprated IC?

Jolly Green Monster

iTrader: (4)

if you are happy doing that then check the usual suspects for vf34/35
gruppes for example

Simon

Janspeed

iTrader: (1)

Ok, to be honest I have seen some other turbos about, but they seem very expensive!

Jolly Green Monster

iTrader: (4)

the ones you have seen or gruppes?

just avoid chinese copies!

Janspeed

iTrader: (1)

No chinese stuff!!

Saw some of the equipment at ScoobyTuner.com, even for dollars worth it is not bad, considering the Euro pwns the dollar!!

Tidgy

tbh i've gone the whole hog, and the front mount does make a difference on a vf34, and i dont find it slower spooling than the 35.

the 34 is the roller bearing version of the 35, but a larger exhaust housing to produce more peak power. the larger housing mean the spools down, but the roller bearing compensates for this.

on the road i was hitting 1.4 bar at 3.1k revs, although this was admitedly just watching the defi till it went no higher.

New_scooby_04

iTrader: (4)

Yep. I'm increasingly convinced there really isn't much between the VF34/35 in terms of spool or top end power. I think the individual car/ supporting mods will make far more difference.

Ns04

Tidgy

all we need is a guinea pig lol

Janspeed

iTrader: (1)

You might be looking at him!

Tidgy

just trying to picture a guinea pig driving along in a scoob now,,,,,,,

Henrik

iTrader: (5)

IMO, the problem with FMIC's on new ages is that you almost invariably need to lose the front bar (big metal box thingy) that sits underneath the bumper... Probably not good from a crash protection point of view, and also at least my car felt more skittish once I put a FMIC on.

I know that some kits come with their own bar, but IMO they don't look anywhere near as sturdy as the OEM item.

Also, the STI pinks are 505cc (at least for the bug and blob eye UK STI specs), not 550cc (Which I also thought until Bob Rawle set me straight).

New_scooby_04

iTrader: (4)

Unfortunately, with the new age, I think you're really limited to the APS kit if you don't want to hack into the front bar. However, this kit costs over a grand IIRC. When you consider that the TMIC on the new age can accommodate over 400bhp then moving to a front mount makes less sense at lower levels of tune.

For a classic though, it's most definately worth it. I'll be posting my experiences in this respect very shortly.

ns04

Tidgy

i still don't get this compulsion to say you can acheive x amount of power using the top mount. you can get the same using no untercooler at all, for a few seconds anyway.

i know a car running 450bhp/480ftlb, its running an uprated top mount, and suffers big time from heat isssues. the owner doesn't want to change it due to it being a 22b and cutting original bumpers is a big no no.

what intercooler you have makes no difference on trying to make a peak figure, its how it affects things on hot days that is the issue.

and there is no comparision between a front and top mount, the front mount always wins, you can't alter the laws of physiscs

Henrik

iTrader: (5)

Exactly, this is why I want my crash protection bar back and going back to TMIC

dunx

iTrader: (3)

FWIW someone I know well got a big-name TMIC (cheap) and it was fine on the rollers.... but out on the road the turbo cooked it ! Swapped back to STI TMIC and the car was fine, and made the same HP. TMIC sold soon after !

HTH

DunxC

P.S. Mine has an FMIC and it's better in hot weather ! (2002 STI)

Tidgy

do you crash that often to need it? lol

sorry couldn't resist

then bring on the new question of how else could you put extra support into the front end

Henrik

iTrader: (5)

I don't plan on using it, but if I have to, I'd like it to work as intended

I suppose you could create separate custom crash bar, but I wouldn't trust myself (or most other companies) to produce one that was as good as standard (even if it looked it, it wouldnt' have been tested).

Don't get me wrong, the FMIC I have has served me well, but I just don't feel safe with it, especially as the wife drives the car more than me anyway... I don't mind so much for myself, but if I were to injure someone else due to me wanting a couple of extra bhp or whatever, I think I'd feel really quite guilty for quite some time, if you see what I mean

As NS04 says, at low levels of tune and for a street car, a FMIC makes comparably less sense than on a classic, IMO.