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best ways to gain hp on impreza wrx

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Old 27 February 2012, 09:02 PM
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lau2908
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Default best ways to gain hp on impreza wrx

Hi

Ive recently got a bug eye wrx and i am wanting to know the best ways to gain horsepower.

I was thinking yellow/pink injectors? I dont know much about either at all so any advice is welcomed.

Car is standard apart from 3" exhaust system...

Just bought a walbro fuel pump for it.

If i was simply to get some pink/yellow injectors and a remap, what kind of gains would i see and is there anything else i would have to upgrade also.

I think its the standard turbo still however i will double check this tomorrow.

Something at the back of my head is telling me that something has been done to the car , as standard its only 215bhp, and it feels miles faster than my megane r26, and i mean hugely different.

I will report back when i get my brother whos a mechanic check out the injectors and turbo etc.

But lets base it on the fact if it is standard, whats the best route to take

thanks in advance guys
Old 27 February 2012, 09:07 PM
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Remap is the easiest way, your standard injectors will be 380cc, good enough for what you want, and if the R26 were running correctly, it would be quite a bit quicker than a standard(ish) bug (it would feel less powerful due to it being twin scroll and having far smoother power delivery).
I would also look at doing something with the brakes on your car, they really are bad

Tony
Old 27 February 2012, 09:11 PM
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lau2908
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thanks Tony

Whats the max bhp the standard injectors can handle? if I was to get a remap as it stands today, what kind of gains would i be looking at? 40ish odd bhp?
Old 27 February 2012, 09:13 PM
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obviously basing it on the fact that the car is standard
Old 27 February 2012, 09:24 PM
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Looking at around 270-280bhp on the turbo, that will be your first restriction, the injectors would be there shortly after that.

Tony
Old 27 February 2012, 09:28 PM
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what kind of upgrades then if i wanted to take it further? to say more 320/330 ish mark

thanks in advance appreciate your help!
Old 27 February 2012, 09:57 PM
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Originally Posted by lau2908
what kind of upgrades then if i wanted to take it further? to say more 320/330 ish mark

thanks in advance appreciate your help!
upgraded turbo, injectors, bigger tmic, 3 port boost solenoid etc
Old 27 February 2012, 10:27 PM
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go for td05 16 g (2nd hand ones pop up here all the time), 440's and a remap. job done

i had the same setup on my blob and saw 324 and plenty of fun. I've since gone the classic route for lightweight raw appeal since.

going for the above setup can be done for less than £1k (assuming you don't already have ecutek licence)
Old 27 February 2012, 11:32 PM
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watch that 5 spd box man 1 wrong move and its gone !!! i found that out first hand
Old 28 February 2012, 03:01 PM
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how much can the 5spd handle safety ?
Old 28 February 2012, 03:09 PM
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depends how its driven mate ?? its not bhp that does it , its torque !! mine had 322lbs ft of torque and 4 people in the car when i gave it a bit too much right foot !! there was no warning signs what so ever either it just went bang in a second
Old 28 February 2012, 03:19 PM
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Originally Posted by initialD
depends how its driven mate ?? its not bhp that does it , its torque !! mine had 322lbs ft of torque and 4 people in the car when i gave it a bit too much right foot !! there was no warning signs what so ever either it just went bang in a second
Id be devastated

out of curiosity what bhp did the car have?
Old 28 February 2012, 03:26 PM
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is the ihi vf24 turbo any good? or would this not be suitable?
Old 28 February 2012, 03:35 PM
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I've got an 01 bug waggon, just had...

Full de-cat 3" exhaust
de-cat up pipe
remap

All at Scoobyclinic

267BHP and 270 ftLb torque plus the best sound in the world.
Old 28 February 2012, 03:45 PM
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Originally Posted by lau2908
Id be devastated

out of curiosity what bhp did the car have?

i am absolutely devastated , the car has been nothing but trouble since i got it its one thing after another in my case !! it was nearly finished for show season and time to enjoy it , then it done this !! so thats why im selling as parts and moving on to something easier to run and live with . engine made 360.1bhp but rolling road did need adjusting slightly . i would imagine somewhere between 340-350?
Old 28 February 2012, 04:00 PM
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Chase those numbers billy!

Seriously, suspension and brakes, THEN engine .... thats the way to a quick car!
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