All, what's the max BHP a Vf43- VF48 can achieve ?

BR

 

380-393/ 420 ftlbs with supporting mods
360-370 is easily achievable

 

Ok that's, roughly what I had in mind. Running a VF35 on my hawkeye but she will struggle to make 330. Just contemplating my options moving forward.

 

VF43 on my hawk STi with Full de-cat exhaust, air filter, FMIC, ecutek remap, re-circ valve made 377bhp 412lb/ft

 

Mapped a stock engined 2 litre STi8 recently that made in excess of 370bhp on Vpower and over 410bhp on a meth mix using a ported VF43.

 

Good result to say the least
What was peak torque on the 2ltr platform Martyn ?

 

That's an impressive torque figure mate

 

https://www.scoobynet.com/scoobynet-...n-my-vf43.html
Have a look for yourself.

 

I have vf35 and been told by many people good for 360ish

 

Top result on a 43 for sure
Happy man blocks85

 

VF35 on the 2.5 engine isn't as good as the 2.0 for BHP figures. I've not seen many getting 360 on a VF35 unless ported.

 

354bhp on my non-ported vf35 on sti8 engine with rcm headers

 

Good result on the 2.0 motor mate. Don't think that be possible on the 2.5.. What torque figures did you achieve?

 

370+

 

That's amazing figures for an unported vf35. What psi boost you running at? 22?

 

1.45 matey

actually the torque figure was 365 i think

heres the graph

http://s36.photobucket.com/user/bigs...ml?sort=3&o=36

 

Very impressive mate

 

cheers matey,that was with standard wrx heads with 100k on them,its probably a little more now i have the sti 8 engine

going for 400bhp soon

 

Good luck mate. I've just had a forged motor put in and will look to push it in the next 6 months to the 400bhp mark. Will need a new FMIC, Turbo and uprated clutch beforehand though.

 

Evening all.
As Martyn said it was my car that he mapped with the ported 43 on.
2.0 Sti blob
Made 380/390 on v
412/412 on v + 20%meth.
Top mark to Martyn again @ ET, EXCELLENT service!
He is the graphs

 

But your never happy with what you got, Always looking for more unfortunatly!!!

I like the way my VF43 performs on the 2.5, but I really need to get it forged before I think of anymore engine mods, Was thinking getting it forged, new clutch and re-mapped again, and see if I can push the VF43 to as close to 400bhp, should make the perfect road car!!!

Can the VF43 be ported like the VF35???? Did this to my old car with ported headers and upipe and noticed a difference in how quick the turbo spooled up,

 

I think a forged and mapped 2.5 is hard to beat as a fast road car. It just has power everywhere in the rev range. I also think tuned to 400 ish would make it a perfect street car.

 

Just thinking once my car is forged would I get slightly more torque???

Is your car forged using the VF43??? I see you have a black hawk(rb320) in your avatar???

 

Yup mines forged and pinned. You will not get more torque by forging but you will be able to mod further for more power and torque.

 

What sort of power you running??? and what mods you got????

Always looking for idea's!!!

 

Mine is quite standard apart from the forged pinned lump, K&N panel filter ,3 port boost solinoid, japspeed exhaust with 100 cell sport cat and ecutek racerom. Not really sure about true power as i've not had her on the rollers but im running 1.65 bar of boost on the vf43.
I'm now starting to consider a 20% meth map. just weighing up the pro's and cons.

 

Meant to say my vf43 is heavily ported.
Did the same to my vf35 that I took off and was producing this-

 

352hp/ 360 torque @ 1.3 bar

 

Just for a bit of reference peeps, Martyn did get the vf43 to this on straight v power but he said the map was too lean especially as I do a lot of hard track use with the car.
Cheers Chris

 

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Thats some good power on a VF43, id be happy with 390bhp!!

Think I might port the VF43 and port the headers when I need a little more power, Cost nothing apart from your time and obviously get it re-mapped(when ive forged it)!!!