1998 sti type r. comments welcome.

 

What turbo fella?

 

what mods you got m8

 

1.5 bar ... is it the wifes car

TX.

 

hoping to see similar figures on Saturday but my up-pipe is blowing so if I see 320+ i'll be pleased.

Nice figures chap, VF35?

 

vf48,i have to say,its a better tubo than the vf35.
car spec is..

2004 jdm sti short engine
v4 type r heads
walbro
vf48
h&s dei wrapped sports cat downpipe
2.5 straight through centre section
h&s backbox
hybrid fmic
rcm induction
walbro pump
apexi power fc
oe 440 injectors
oe headers
exedy pink clutch
6kg billet steel flywheel
dccd short ratio type r gearbox.
with a set of 550s it will see 360 bhp. engine capable of 450/450
going to leave it at this power(for now) as i cant afford six speed.
it drives and sounds superb.

 

 

your 440s must be running flat out to be getting 338bhp, what fuel pressure are you running,.

 

I doubt it will see 360 tbho from the one I see dyno'd a month ago especially when your already at 1.5 bar,although it did spool very well!!
The torque is a bit low when compared to the 34/35 though,that said it will make for a very nice road car that spools well to boot,well done chap.

 

yes,thats the limiting factor..injectors are at 96%.

 

with a set of 550s and some meth mix it will do 360 or close to it.
still on oe headers etc.
the vf48 is a great turbo and delivers the power very smoothly.
a vf48 will make more power and torque than a vf35 with all suporting mods.
i had a vf35 old my 99 wagon and it only made 303lb ft.
cant praise the vf48 enough,it feels miles better than my vf35 did.

 

with meth it will reach 360

 

i know,but dont want to break my 5 speed just yet.

 

Now he mentions meth lol,yes with meth it will make that sort of figure.
The 34 I had made 339lbs ft at 1.4 bar so I'm going off that mate,that's why I mentioned low torque really.
Like I said I was impressed with the spool

 

i opted for the vf48 over a 34 as its a much newer turbo and delivers power more smoothly,im very considerate to my 5 speed box.

 

Completely agree there mate,not so much of a wallop in the back/gearbox lol

 

nice but a little laggy.. exhaust headers or uppipe leak maybe?

power is good

 

i think the vf34 and vf48 a fairly similar in power/torque potential,the 48 feels much more driveable than the vf24 and previous vf35.glad i opted for the 48....no regrets there.

 

laggy? it certainly dosent feel laggy!

 

1.5 bar not until 4250rpm seems a tad late ...

TX.

 

I agree John,the one I saw dyno'd hit that boost before 4k.

 

i put a 34 on my version 4 couple of weeks ago and omg what a great turbo very little lag and goes like **** i love it 34 strong turbo so ive been told

 

I'm thinking of swapping my 35 for something else as its struggling to make 300lb/ft so i'll keep a lookout for a 48.

My mate has a 34 running 360/360 but he's on a 6 speed. Strange thing is, with the added weight of the box our cars are very similar in performance on the road.

I'm hoping to add ported headers, full decat down/up pipes and a 3 port to improve spooling on my VF35, then will think about a swap to something with a smoother delivery later.

 

dont mean any offence but I would epxdect it to spool earlier..

If it feels quick now and is spooling that late, you have more fun to come

on the road what rpm in 5th do you see 1bar boost?

Alternatively it could be a dyno gearing mistake.

Simon

 

got me thinking now lol.
i fitted a new up pipe gasket.couldnt feel any leaks there.

 

My old impreza with a md321t made 1 bar at 4200rpm, 1.8bar at 4600rpm ... felt a bit laggy if caught in the wrong gear however I just dropped a cog & it flew

TX.

 

Very strong turbo and yes they do make a classic go rather well lol

 

not sure,i would need to monitor that using the commander....im led to believe that the vf48 does vary a little with mapping,different cars/specs etc seem to get quite varied power/torque/spool from a vf48?

 

I defo think its spooling a bit late mate,the one I saw spooled really fast.

 

yes well happy with mine with all my other mods completely different car had a 20g on before and was terrible