Can any one see any issue with fitting a walbro 450, was for another project I was doing but think I'm going to break that an concentrate on the Impreza, I use to have a 255 but power aims mention I needed something bigger so exchanged it for a 450 😁

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400's goes straight in and i can't imagine you'd need bigger than that.

 

If you do i would suggest swirl pot setup anyway

Would be totally stock bar, decay and cat back blitz nur spec

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255 would be plenty then. I'm on a walbrough 400 and not even close to maxing it out

Only reason is I have a 400 just sat

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ah right, if you dont have any plans to go higher power later then just sell it on. If it aint broke, dont fix it ;)

Well that's the thing, not sure what I may do haha got a fmic, GT3582r, fpr, external wg, motec M4 pro, and some huge injectors just sat too lol so anything could happen

Gonna need a rebuild and alot of money spent for that so fuel pump will prob be the cheapest thing you;d have to buy. Also prob into swirl pot setup at that point anyway.

 

If your happy with what you have leave it be. Can always keep the pump as a spare, although i'd sell it and buy one later if i needed one

This is very true, was just reading somewhere that at a stage 2 map it's advisable to update the pump.

(God I hate asking loads of questions, you can tell me to bogg off if u get bored of them too haha)

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not sure what a stage 2 map is tbh. a remap is a remap

dont worry about loads of questions - stage descriptions for tuning / modification can vary widely dependant on tuner / forum / model of car. If you change the flow into and out of your engine a remap will ensure the fuelling etc is tailored to the mods you have made

Cheers buddy,

My current set up(unmapped) is:

Decatted, blitz nur spec R cat back & dump valve