PrimeKos

iTrader: (1)

Hi All,

I have recently purchased a GB270 Wagon no17. Car is going in to Subaru4u on monday for a VF35 install and Ecutek remap. I am not sure what BHP I am expecting but 280-300BHP would be a nice achievement. My car has done 52000 miles and has a FSSH.

One of the things that is causing me concern is the standard 5 speed gearbox. I have read some horror stories about the 5 speed gearbox not being of the best quality and just wondered if there was a way to make the gearbox more robust without throwing stupid money at a 6 speed conversion.

List of mods being done during VF35 install.

Cosworth panel filter
NGK iridium plug install.
3 port solenoid
Walbro fuel pump
Ecutek remap
Centre section straight through pipe

Car is used as my daily drive so realibilty is key for me. I am sure many will tell me I should keep it standard then. Good point however I just fancied something a little quicker. Yes I know the STI would of been better but I really do love the rarerity of the GB270 Wagon.

Any suggestions on the gearbox would be greatly appreciated.

BR
Dale

BoozyDave

iTrader: (8)

you should get over 300bhp easily, std turbos have been known to do 290bhp+. the vf35 will do 340bhp+ with correct supporting mods.

the std 5 speed will cope with 340bhp, then it's just down to luck. but it's the torque that causes problems. a mate is running 340bhp 370lb/ft and he hasn't had a problem.

one main consideration is - mechanical sympathy
a car with 320bhp that launches from a standing start often probably won't last long, but a car with 350bhp that sets off fast (but not silly) should last longer.

BoozyDave

iTrader: (8)

if you want to upgrade the 5 speed box, you can get replacement PPG cogs. cost will be about £1800 though

PrimeKos

iTrader: (1)

Thanks for the reply mate. I am not the type for thrashing cars around and certainly would'nt see myself launching the car at every set of traffic lights. I generally only put my foot down in 2nd and 3rd gear so figure myself as being some what kind on the gearbox.

PrimeKos

iTrader: (1)

Thanks, does that price include the labour costs as well?

sunnyjones003

iTrader: (12)

Im running over 450bhp in my wrx with. My car has a hammering everytime i use it BUT never launched. Just a quick start. The box has never missed a beat.

Its pot luck really it all depends on previous wear and tear, and how you treat it.

RA Dunk

I think the gearbox already fitted to your GB 270 will be fine, it's just the earlier classics had had sh1te gearboxes..

scooby1929

iTrader: (1)

The hawk gearbox is the best of the 5 speeds. I would only worry about it if it goes bang

I have had no probs with mine 350 lbs / ft torque

Norman Dog

iTrader: (1)

What's the spec of your car?

PrimeKos

iTrader: (1)

Thanks all, much appreciated

sunnyjones003

iTrader: (12)

Bugeye wrx with supporting mods.