Scooby96

Currently running at 253bhp MY93 WRX with GpN panel filter and full decat exhaust. Whats going to be the most economical, easiest and safest route to 300bhp?

wanted

If there was such a route m8 we would all have 300 horses

Scooby96

OK fair enough. So can anyone post a list of mods and confirm the an approx inc in bhp from that mod?

alcazar

iTrader: (2)

Pink STi badge= 10bhp
Clear indicators= 14bhp
Clear side repeaters= 11bhp
Larger spoiler= 20bhp
Different (22B) bonnet scoops= 8bhp:

got 'em all myself, and boy does my car go?
Alcazar

wanted

Have you enquired about scooby ecu from David Wallis, should see you with 20/30bhp more, and at about £100 it's the best mod you can get for the money.

7 Foot

Dawes device, boost guage and a knocklink. Not 300bhp but a fair jump.

TonyBurns

iTrader: (3)

One of the quickest methods to get there is to change the ecu to an MY95/96 one (for a 4 door wrx if your cars a 4 door) which is 260ps on 100 ron fuel compared to 240ps.
Fuel is your biggest gain, ensure your running sul with octane booster to get the most out of the ecu, then you should be pushing around 275bhp, speak to david as stated and you should be on the road to 300 big ones

Tony

Spoon

Surely when you change over to David's map you won't add bhp onto the jap figures but start from the Uk base figure plus an increase.

This would then allow you to run on Uk fuel too.

wanted

Don't think so spoon, when i was at Davids he said that it is more noticable on a uk car but that you still get an increase on the jap models, but i could be wrong m8.

stevebt

iTrader: (8)

dont quote me but i think the ecu mods he does are for year 99 and above

alanbell

iTrader: (6)

davids better ecu s are for the classic scoobs to 1996 as far as I know, AND THAY ARE GOOD . AFAIK , lol alan cheers david.

highlander68k

rotflmfao @ alcazar

highlander68k

You may have the same problem I had, as your car is probably running the 380cc injectors. I was running 97% IDC (injector duty cycle) probably somewhere between 280 and 290bhp. This will mean you will need bigger injectors to ensure things are kept within safe limits.

You best bet to achieve your 300bhp is to source second hand parts at bargain prices. You obviously spend a fair amount of time on SN so just keep your eyes open for the recommendations that people give here.

alanbell

iTrader: (6)

soz davids mods are UP 2 1996 . thats what he tells me ???? cheers all , alan.

Dave@Jap

Hi,

We have produced many cars with well over 300 reliable bhp on the standard 380 injectors. Providing that they are cleaned regularly with a system cleaner and you use an uprated pump the standard injectors are well up to it.

I would agree with some of the other comments though a knocklink and boost gauge are essential, as is optimax/SUL and a booster.

Dave

submannz

Run alcohol and water injection, then you can advance your timing with out det.

Jay m A

iTrader: (2)

Dave@Jap

Does the OE fuel regulator handle the uprated pump OK? and so does more fuel go through? Or do you need to uprate the fuel regulator too?

To get close to 300bhp I have full decat, K+N filter, Samco IC hoses and a ScoobyECU @ 16.5psi. I have yet to run this map (well maybe the odd time ) until all plugs and fluids are changed on my impending service.

Initial thoughts are that even with OE fuel pump and regulator, running optimax and NF the AFR's, EGT's and knocklink seem quite happy @ 16.5 psi, however these are only ever short bursts. how much BHP is anyones guess, 290 I'd say.

RICH WILD

Jay,

You don't HAVE to uprate the regulator, although for bigger power you may. My 97 has the uprated pump and standard reg at the moment and fuelling is spot on which has been verified on 2 different rolling roads.

Cheers
Rich