Help with turbo choice

[a s b]

Hi , I am about to buy this week a new turbo and have it down to either a vf35 or a vf34 but would like some feedback on which would be the best with current mods car is a classic v4 wrx
Spec is
Full decat 2.5 inch with custom up pipe
Walbro 255 pump
3 port boost solenoid
440 cc injectors
Newage wrx intercooler with matching undertray
Samco intercooler y pipe
Ngk pfr7b plugs
K&N panel filter
Turbo will have a turbo blanket fitted
any advice would be great thanks

Edited by a s b on Monday 4th January 19:08

[a s b]

Hi thanks for reply , for a classic I have read the spool is the other way round , the vf35 spooling quicker than the vf34 but the vf35 running out of puff higher up the Rev range , I have seen a vf34 for sale which has only done 1000 miles , or looking at buying a reconditioned vf35 from central turbos possibly with a billet wheel , I think I'm going to go for quicker spool so I don't lose the drive ability the car currently has with a td04 mapped to 290 bhp

[a s b]

Hi thanks , yes I was initially looking at a td04 hybrid as the quick spool up sounds good , but I'm after a bit more of a power increase I was hoping for around 330 bhp with my current mods at the moment I'm leaning towards the vf35 . I waited ages to get esl fitted now I'm bored of the td04 so looking forward to a bit more power

[a s b]

Thanks fatjon , I was thinking of upgrading the injectors to 550cc before I got the 440cc but after doing a search on scoobynet I have seen plenty of people running 320 plus bhp with them so thought they would be ok

[a s b]

Thank you vixpy1 , I have just sent my 440s off to be cleaned and flow tested to make sure they are running at there best

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Antilagc8 thanks and I will let you know once I have it all sorted . Fatjon wow that is some very interesting reading thank you , looks like you are right and it would be best for me to go larger than 440s , I will be selling my phase 1.5 and buying some phase 2 injectors , then sending them to lateral performance to be flow tested and modified , I will need the adaptor kit to fit them ,the car will road mapped when everything is bolted on , I have narrowed the turbo down to a vf34 or a td05 big 16g with a Evo 3 billet wheel , the vf34 has covered 1000 miles and the td05 will be a reconditioned one any thoughts

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Little update , I've gone with fatjon's advice , I now have a set of phase 2 440 s that will be getting flow tested and modified to a higher cc , once I gather all the parts I will speak to my mapper to see what size injectors he recommends