midnight

iTrader: (10)

Techno brat I to spent days trawling through threads on this & other scooby forums regarding bahjo bolts, before i finally went to subaru uk and i gave them the reg no off my mates P1 and they printed the entire page of the turbo with oil pick up pipe & support screw,etc off for me,i then ordered the bottom banjo that goes on to the block.When i got it home and took off the one from my old td04 they were the same diameter bar the little filter. I took it back and ordered the top banjo,when this arrived it was clear to see that the hole was alot smaller than the td04 item,which is correct because as you say it is a roller bearing turbo so it needs less oil flowing to it and having the restriction at the turbo end will ease the flow.
When my mate with the P1 had his oil changed i asked him to ask the garage to clarify before they fittied the new oil and filter,and it was the same set up as i have described above. I have a td04 banjo here on my old td04,and one off a vf 28(both turbo end)i'll tryand post up the pics for all to see.

chtpcpo

iTrader: (11)

That would be useful mate, i will visit the dealer to get one, ta

chris cairns

99 v5 type r

headers, exhaust, fuel pump, panel filter,andy.f ecutec remap


333bhp/310lbft

Steve T

iTrader: (14)

I,ve had both Vf 28 and Vf 35 on my last Uk Classic. In my opinion the Vf 35 is the one to go for,power up to around 340 bhp with supporting mods ,and minimal lag.

techno_brat

iTrader: (5)

midnight- oh right, well that is odd! what was the number you ordered for the block banjo? did this have the large hole like the td04 then but with the addition of the filter? so i assume the top banjo then had a small hole? do you have the part number? like you i have been doing alot of searching lol. any pics would be helpfull

midnight

iTrader: (10)

The part numbers i have for a subaru impreza P1 are as follows:

The Banjo that goes the Block end has a the filter is 14445AA002)
The Banjo that goes the Turbo end has the small hole is 15194AA130

The banjo bolt for the turbo end of a td04 is part no: 14439AA010,which has a larger hole. The part no for the block end is different again,same diameter hole,only slightly wider bore. Hope this helps

techno_brat

iTrader: (5)

great so are you saying the only difference between the p1 block banjo and the td04 block banjo is the internal diameter and one has a filter? but the feed hole is the same? so technically all you need to fit a roller bearing vf is the 15194aa130(top banjo), i wonder why they put a different head banjo in with a filter??

midnight

iTrader: (10)

Yes mate,thats whats on mine ,and car is running fine,no idea why they put the filter in as that on its own wont restrict the oil supply.

techno_brat

iTrader: (5)

gotta love cars! lol. just out of interest what was the size of the hole in the td04 top banjo? any pics you can send me?

Lewak

iTrader: (1)

V3 STI VF23 turbo
FMIC
DECAT
INDUCTION
SIMTEK
550cc INJECTORS
1.5Bar
just shy of 400bhp


Mate has same setup just hes running a vf35 turbo at 370bhp and it eats mine alive. its so savage that second gear 25mph and floor it all 4 wheels spin. Hence why iu'm changing to a vf35 on mine. Which i have :P


Cheers

Dave

joz8968

iTrader: (13)

<400bhp on a VF23?!?!?!

WhiteWagonMan

iTrader: (34)

My thoughts exactly vf22 YES vf23 NOOOOO,never heard of anyone getting 370 from a 35 either.Dyno proven by any chance,or he says she says his mate said my mate got this and that,while necking a pint in the local snacking on peanuts at the bar figures.

BLACK V5

So anyone know if a VF29 is capable of the same sort of power as a VF28?

Scooby-doo97

iTrader: (1)

It's almost identical mate, so around the same power.

techno_brat

iTrader: (5)

whats the differences with the vf29 then?

harvey

iTrader: (48)

8400 red line ?
Are you saving for a new engine?

There is no point taking any mildly tuned Subaru engine any where near the red line whether it be WRX or STi as the power drops off so much beyond a particular point the fastest quarter mile times are achieved with upshifts usually between 6000 and 7000 rpm depending on whether WRX or STi.

The VF28 is a very good choice, reasonable spool and good power and I had one which did 353 bhp, perhaps on an optimistic rolling road and know of a couple of others at the 350 mark but that is beyond its efficient power performance area but they are happy at 330-335 bhp with all supporting mods done.

BLACK V5

So harvey would those sort of figures apply to a VF29?

Turbovin

iTrader: (2)

I got 348 hp last year on a rototest (very precise, calculated with 16% loss) with VF28, fmic, silicone intake pipe, exhaust and Ecutek.

This year same spec but with Simtek I only got 331 hp on the same dyno, however the temperature was about 8-10 degrees celsius higher that day.

harvey

iTrader: (48)

Very similar for a VF29. Another good turbo.
4 deg.C. ACT = 1% power.
If you want to brag about power output from a VF28, in my early days with the STi 6 Wagon I had 370 bhp with everything done. We changed to an Ion turbo, went back to the same rolling road a very short while afterwards on a rolling road day and produced 417 bhp.
I didn't think a VF28 was capable of 370 bhp and I don't think that turbo would have lasted long at that boost level and I guess the turbine was well over speed. Like I said above they are genuine 330-340 bhp turbos and some of them do a bit more.

Turbovin

iTrader: (2)

Has anyone used E85 with a VF28? I have some problems with my Simtek and will need a full remap so I figured that I might try to use E85 to get max power from it (together with bigger injectors)

Turbovin

iTrader: (2)

I got 370 hp with E85 and about 347 hp with Vpower now with 740cc injectors, 1,5 bar boost pressure. There was an error in my Simtek map so therefore it only made 331 hp earlier this year.

harvey

iTrader: (48)

Good figures. Is the air colder in Sweden?

NEILB1

iTrader: (9)

what is this banjo thing ? would i need one to swop my turbo for a 28 or a 35?

joz8968

iTrader: (13)

You need to get a miniature George Formby...

NEILB1

iTrader: (9)

hmmm ok anyone else

midnight

iTrader: (10)

If you read the post at the top of the page(2), it will tell you what the banjo thing is it also depends on what turbo you have fitted to your car now if it is a td 04/05 then yes you will need to change the banjo if you fit a vf 23/28. However a vf35 may not require a different banjo as it is not a rollerbearing turbo.

Myles

iTrader: (40)

I know the guy that Lewak is referring to, not been dynoed yet but ran an 11.8 at 111mph, 60ft was 1.71s, eighth mile was 7.5s @ 93mph. He hopes to get it on the rolling rd soon so we will see then.

Lewak

iTrader: (1)

Well if its less than 370bhp fine(i know he will have a smile on his face if it less) but still was 4th on the list a santapod against cars with 400-600bhp. Not all about. Also down to how its delievered me thinks

Big 'D'

As soon as I get it on the dyno I will let you know the power/torque figures, I agree that it is not heard of getting much more than 340bhp from a VF35 but my last dyno prior to fitting 550cc injectors, parallel fuel rail, fpr and simtek was 350bhp (@ linden, wellingborough) with similar torque and it ran 12.2 @ 110mph at Japshow Finale last year, now its running 11.80 @ 111mph with only 1.4 BAR boost pressure, std gearbox/clutch and engine internals. So regardless of the power output (the lower the better if you ask me ) it is a seriously good little turbo that can be complimented to achieve monumental speed/acceleration .

And for those who think these are just bar figures:

My second run against the Hyabusa turbo Bond Bug @ USC 2010 (not my PB run but a storming 11.87 all the same)
http://www.youtube.com/watch?v=3aih8Ny9J0E

Here is a link to the Class 'D' RWYB table from USC 2010 my race number was D11. Not a bad time for a sub 400bhp Impreza
http://www.ultimatestreetcar.co.uk/r...es.php?Class=D



Cheers Iain

Big 'D'

Out of interest what is the most power anyone has seen from a VF35.

Cheers Iain