Whats the MAX bhp my scooby can take
14 June 2005, 08:17 AM
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Wayne,
I'm not sure there is actually an answer to your question, as the maximum bhp could quickly lead to the destruction of your engine.
The max power you can SAFELY get out of your engine depends on 'how big your wallet is' and how far you are prepared to push the engine to the detriment of reliability.
With the right supporting mods (including changing the turbo, intercooler, injectors, exhaust etc. etc.) your engine could push 400bhp.
Read what AndyF is doing with his MY03 WRX in the Scooby Magazine for ideas.
Good Luck
Martin
I'm not sure there is actually an answer to your question, as the maximum bhp could quickly lead to the destruction of your engine.
The max power you can SAFELY get out of your engine depends on 'how big your wallet is' and how far you are prepared to push the engine to the detriment of reliability.
With the right supporting mods (including changing the turbo, intercooler, injectors, exhaust etc. etc.) your engine could push 400bhp.
Read what AndyF is doing with his MY03 WRX in the Scooby Magazine for ideas.
Good Luck
Martin
14 June 2005, 09:42 AM
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the pistons are widely regarded to be made of chocolate.....i have the same car as you and im about to experiement with nitrous (which admittedly is a kind of cheat method) but my car is more than happy running at just over 300 on standard internals (apart from injectors)
14 June 2005, 10:09 PM
#7
It depends whether you build an engine with plenty of safety margin or stress everything to the hilt to achieve 400BHP. A lazy 400 will outlast a maxed out, on the egde car of course.
So, how much can a standard internalled 2003 wrx take? If you want a faily reliable car that will last many 1000's of miles then 300bhp is reasonable, with the right mods. 350BHP will need a bit more thought and care to run for a long time and will depend on your driving style (will need a better gearbox). 400bhp will be stretching reliability and I wouldn't expect a hard driven car to last without constant attention IMO.
F
So, how much can a standard internalled 2003 wrx take? If you want a faily reliable car that will last many 1000's of miles then 300bhp is reasonable, with the right mods. 350BHP will need a bit more thought and care to run for a long time and will depend on your driving style (will need a better gearbox). 400bhp will be stretching reliability and I wouldn't expect a hard driven car to last without constant attention IMO.
F
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15 June 2005, 05:15 PM
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if he raises fuel fressure then no, but if not then the standard ones will be running well over 100% duty to get over 300....thats why i changed mine?
still 380cc in the 03...
still 380cc in the 03...
15 June 2005, 05:27 PM
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Sorry to hi-jack thread but it made sense as I was going to post a similar question! What is the difference between a JDM WRX and a UK version (03 that is) - what will I need to get to 300 bhp - I was just going to add boost controller and get it set up on an RR - is this feasible?
16 June 2005, 03:44 PM
#15
Originally Posted by Neilo
if he raises fuel fressure then no, but if not then the standard ones will be running well over 100% duty to get over 300....thats why i changed mine?
still 380cc in the 03...
still 380cc in the 03...
I would have probably changed them too if I was you
Bob
19 June 2005, 10:06 AM
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329 bhp on my 03WRX on std injectors, std pump, std fuel pressure........ but only just ! They will run to circa 350bhp with uprated pump/reg.
There will however be production tolerance differences between cars so I would recommend 300bhp as a safe maximum on the 380's at std pressure.
As a general rule on Subarus, the std turbo will not outflow the std fuel system.
(may still need remapped to suit though)
Andy
There will however be production tolerance differences between cars so I would recommend 300bhp as a safe maximum on the 380's at std pressure.
As a general rule on Subarus, the std turbo will not outflow the std fuel system.
(may still need remapped to suit though)
Andy
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