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Fuel pump advice for future mods


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Hi all. I'm after a bit of advice about my fuel pump. I've got a 2005 blob wrx. When I got it I was under the impression it was standard except a prodrive exhaust. On further investigation I've noticed the car has prodrive intercooler hoses. I took the car to Plymouth to see what bhp it had and to remap if possible (soon after I got it) they told me it was at 250bhp and they remapped it to 285bhp. I've since contacted prodrive and they had no records of my car and suggested I contact Subaru uk, which I did. They phoned me and told me the same. So I'm unsure if my car had a complete ppp. My understanding of the ppp is it came with exhaust (back box and decat mid section) intercooler hoses, fuel pump upgrade and remap. I've not had the chance to check the centre cat, but it would appear that it did have a remap (before I got it). Now I'm looking to the future and if my turbo should pack up my plans are to get a bigger turbo (td05 or vf35), pink injectors, upgrade tmic,and fuel pump. But if the possible prodrive upgrade has been done, maybe I won't need to change the fuel pump. Is there a way I can tell if the pump has been changed? Any visual differences? I only have basic tools and not a trained mechanic.

My objective in the future would be to get the car over the 300hp mark.

Many thanks

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38 minutes ago, Sirspidey said:

True. Is it a difficult job to change them?

Nah... about an hours work... need to remove the back seats, remove the panel to access the top of the fuel tank, pull off the hoses, unbolt it and lift the whole unit out. Once the whole unit is out it's just a straight swap as the plug is the same. Then do the reverse and you're done!

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True. Is it a difficult job to change them?

Nah... about an hours work... need to remove the back seats, remove the panel to access the top of the fuel tank, pull off the hoses, unbolt it and lift the whole unit out. Once the whole unit is out it's just a straight swap as the plug is the same. Then do the reverse and you're done!

Sounds good. A job I can do when I change the rear shocks. Would the ecu need to be mapped for a different pump?

And many more questions to follow lol

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Ecu doesn't need to be mapped for a pump.

Excellent!

Now some of you may ask, why not just get an sti?

When I was looking for one, I didn't and still don't like the rear spoiler of an sti. Yes I could've changed it. I kinda like the 5 speed (unless anyone can convince me otherwise) and I like the 'under dog'. What I don't like is people who have a, let's say, focus and then badge it up to look like an st but it's only got a 1.6L. What's the point? I prefer, let's say, WRX and no one know what under the bonnet. Gives a bit of a surprise. Again yes I could de badge an sti. But why would you lol.

Anyway I made my choice and I'm very happy with it. Initially I wasn't looking to chase bh numbers, but there are a few quick bmw's in the area that need a lesson taught. That's my excuse lol.

So a quick question on brakes. I kinda like my standard wheels and as yet haven't experienced brake fade that I hear a lot about. But then again I don't rag it everywhere. Now with the 285bh I have and possible future 300+bh, maybe I should upgrade the brakes. Should I change wheels to 18" or stick with 17"? I've read 18" can handle the power better? If I stick with 17's is there a good upgrade from stock? Do the discs really need changing or could I just get away with changing the stock callipers?

Again thanks for all the help.

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22 hours ago, Sirspidey said:

Excellent!

Now some of you may ask, why not just get an sti?

When I was looking for one, I didn't and still don't like the rear spoiler of an sti. Yes I could've changed it. I kinda like the 5 speed (unless anyone can convince me otherwise) and I like the 'under dog'. What I don't like is people who have a, let's say, focus and then badge it up to look like an st but it's only got a 1.6L. What's the point? I prefer, let's say, WRX and no one know what under the bonnet. Gives a bit of a surprise. Again yes I could de badge an sti. But why would you lol.

Anyway I made my choice and I'm very happy with it. Initially I wasn't looking to chase bh numbers, but there are a few quick bmw's in the area that need a lesson taught. That's my excuse lol.

So a quick question on brakes. I kinda like my standard wheels and as yet haven't experienced brake fade that I hear a lot about. But then again I don't rag it everywhere. Now with the 285bh I have and possible future 300+bh, maybe I should upgrade the brakes. Should I change wheels to 18" or stick with 17"? I've read 18" can handle the power better? If I stick with 17's is there a good upgrade from stock? Do the discs really need changing or could I just get away with changing the stock callipers?

Again thanks for all the help.

 

Problem with the 5 speed is its weak, 350bhp and if you don't drive it with some mechanical sympathy it will shat itself. Can get uprated 5 speeds (PPG, Albins etc) but they are typically 3k + so more than the cost of a 6 speed conversion.

17's will handle and ride better than 18's. Standard caliper is pretty weedy so your best bet is fit a 330mm kit which fit underneath 17's, D2 or similar is a nice cheap upgrade or 330mm 4 or 6 pot Ap's are the daddy. Brembo of an sti are a funny offset so wont fit under alot of wheels. Also braided lines and decent fluid.

 

IMG_4354_zps85eb066e.jpg

 

IMG_4337_zps47945eb1.jpg

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Great info, thanks tidgy. I might just leave it at the power it's at then (unless the gearbox goes bang lol). Will look into the brakes. All these upgrade will happen when things need to be replaced. Brakes are good at the mo. Again I don't drive like a loony all the time. So should be good for a while.

Thanks again.

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I went form uprated pads, disks and lines all round, to copies of AP 6 pots and the difference was massive on a classic. Then went back to standard setup on a hawk and found it woefull, then to an AP 4 330mm setup on my type R and they are by far the best brakes i have ever had.

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Wow! Just had a quick look at the price. Gonna have to save up lol.

Now she also got me some new spark plugs. I said get ngk, which she did, but which ones are best? And I believe they don't have ht leads? Are they coil packs? Should I change these too?

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1 hour ago, Neil said:

Don't go listening to that there tidgy he's a bad un and will lead you down an expensive roads, but it's a !Removed! fun road :biggrin::biggrin::biggrin:

He's full of info and friendly to boot 

hahaha cheers :D

 

you built yours yet?

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