VF28 - Good for 310/320?
#1
Scooby Regular
Thread Starter
iTrader: (1)
Join Date: Jan 2011
Posts: 582
Likes: 0
Received 0 Likes
on
0 Posts
VF28 - Good for 310/320?
Was initially looking for a VF34/5 but may have the option to buy a VF28 at a good price. My plans are to aim for 320bhp max but would be happy around 310bhp. Will this turbo be suitable with all supporting mods or am I better off waiting for a VF34/5?
Also, how do they spool compared to the TD04 and VF34/5?
Also, how do they spool compared to the TD04 and VF34/5?
#5
Scooby Regular
iTrader: (2)
I have uk turbo with
VF28 (wrapped)
Ported & wrapped headers
Harvey Smith spec Up pipe
Decat down pipe
HKS Exhaust
Standard filter
Remap
STi 8 intercooler & modded under tray.
Silicon hoses
Uprated fuel pump
Helix clutch / flywheel
Makes 328bhp / 325ft/Ib torque on Dyno Dynamics at 1.2ish bar on the dyno and about 1.3 on the road, so very safe.
Am still on standard 440's and running like this for 14months now.
So yes mate 320 is very realistic.
VF28 (wrapped)
Ported & wrapped headers
Harvey Smith spec Up pipe
Decat down pipe
HKS Exhaust
Standard filter
Remap
STi 8 intercooler & modded under tray.
Silicon hoses
Uprated fuel pump
Helix clutch / flywheel
Makes 328bhp / 325ft/Ib torque on Dyno Dynamics at 1.2ish bar on the dyno and about 1.3 on the road, so very safe.
Am still on standard 440's and running like this for 14months now.
So yes mate 320 is very realistic.
#6
Scooby Regular
iTrader: (2)
My turbo spools very slightly later that TD04 but by 3300rpm the VF is pulling away.
I get 1.3 bar on the road in 5th gear at 3000rpm. When I compared the graphs the TDO4 was only pulling harder up to bout 3300. From there on the car has 45bhp more st same rpm and about 30 more torque. My TD04 was running 283 / 298 on same mods except on standard intercooler. So is a fair comparison for the VF in terms of performance gain. The car pulls so much more and for longer, however I think 34/35 would give more push in the back and if I was doing it again I probably wait for this one, however the 28 is dame good and to be honest on the 5 speed box is a safer bet.
I get 1.3 bar on the road in 5th gear at 3000rpm. When I compared the graphs the TDO4 was only pulling harder up to bout 3300. From there on the car has 45bhp more st same rpm and about 30 more torque. My TD04 was running 283 / 298 on same mods except on standard intercooler. So is a fair comparison for the VF in terms of performance gain. The car pulls so much more and for longer, however I think 34/35 would give more push in the back and if I was doing it again I probably wait for this one, however the 28 is dame good and to be honest on the 5 speed box is a safer bet.
#7
Scooby Regular
Thread Starter
iTrader: (1)
Join Date: Jan 2011
Posts: 582
Likes: 0
Received 0 Likes
on
0 Posts
My turbo spools very slightly later that TD04 but by 3300rpm the VF is pulling away.
I get 1.3 bar on the road in 5th gear at 3000rpm. When I compared the graphs the TDO4 was only pulling harder up to bout 3300. From there on the car has 45bhp more st same rpm and about 30 more torque. My TD04 was running 283 / 298 on same mods except on standard intercooler. So is a fair comparison for the VF in terms of performance gain. The car pulls so much more and for longer, however I think 34/35 would give more push in the back and if I was doing it again I probably wait for this one, however the 28 is dame good and to be honest on the 5 speed box is a safer bet.
I get 1.3 bar on the road in 5th gear at 3000rpm. When I compared the graphs the TDO4 was only pulling harder up to bout 3300. From there on the car has 45bhp more st same rpm and about 30 more torque. My TD04 was running 283 / 298 on same mods except on standard intercooler. So is a fair comparison for the VF in terms of performance gain. The car pulls so much more and for longer, however I think 34/35 would give more push in the back and if I was doing it again I probably wait for this one, however the 28 is dame good and to be honest on the 5 speed box is a safer bet.
Trending Topics
#8
Scooby Regular
iTrader: (1)
Join Date: Mar 2006
Location: Surrey
Posts: 178
Likes: 0
Received 0 Likes
on
0 Posts
VF28
Hi mate my V5 STI made 335 with a VF28, Walbro fp, full decat, FMIC and an induction kit. Was mapped by JGM. It originally made 327 with the standard STI top mount intercooler. Spools up well, Enjoy. Been running this for over 2 years so safe too.
Last edited by StiKirk; 29 February 2012 at 07:59 PM.
#12
Scooby Regular
iTrader: (10)
I have uk turbo with
VF28 (wrapped)
Ported & wrapped headers
Harvey Smith spec Up pipe
Decat down pipe
HKS Exhaust
Standard filter
Remap
STi 8 intercooler & modded under tray.
Silicon hoses
Uprated fuel pump
Helix clutch / flywheel
Makes 328bhp / 325ft/Ib torque on Dyno Dynamics at 1.2ish bar on the dyno and about 1.3 on the road, so very safe.
Am still on standard 440's and running like this for 14months now.
So yes mate 320 is very realistic.
VF28 (wrapped)
Ported & wrapped headers
Harvey Smith spec Up pipe
Decat down pipe
HKS Exhaust
Standard filter
Remap
STi 8 intercooler & modded under tray.
Silicon hoses
Uprated fuel pump
Helix clutch / flywheel
Makes 328bhp / 325ft/Ib torque on Dyno Dynamics at 1.2ish bar on the dyno and about 1.3 on the road, so very safe.
Am still on standard 440's and running like this for 14months now.
So yes mate 320 is very realistic.
VF28
std headers
std Up pipe
Decat down pipe(heat wrapped)
Afterburner vortex Exhaust
K& N filter
Map tweak to ecu,by bob rawle
STi6 intercooler & zero sports air splitter.
Silicon radiator top hose
Walbro fuel pump
Std clutch
Samco induction hose
3 port boost solenoid
Makes 330bhp / 326 lb/ft @ 1.35 on the road, with boost starting at 2800 rpm.
#13
Got an old vf28 bolted on my 2.5 at the moment. All mods to handle in excess of 500 bhp when I get my new turbo fitted and mapped. 28 is pushing 370 bhp and 440 odd ft/lb torque. Spools from nothing on the 2.5. Great mid range punch, but does start slowing at much over 5.5k. This is running v-power and 10% methanol.
#14
Forgot to say. I also ran the same vf28 on a 02 WRX. Basic mods being, decat from uppipe back, sports panel filter, upgraded plugs and fuel pump. Made something like 318 bhp and 330 ft/lbs torque on that 2.0. Standard injectors were maxed out at that.
Thread
Thread Starter
Forum
Replies
Last Post
Mattybr5@MB Developments
Full Cars Breaking For Spares
33
29 August 2017 07:18 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
20
22 October 2015 06:12 AM