safricwrx

-01 bugeye wrx,considering replacing standard td04 turbo with larger td-05 16g, wondered what problems if any will i encounter by simply swapping one for the other? what will need to be done to resolve any problems? any help is much appreciated.

johnnyroper

first off you will need to make sure it is front entry,if not you can chop the snorkel off trim down and get welded back on to cover just make sure cover is removed to do this to avoid distorting it.that is what i did.

you will need to make sure the steel pipes come with the td05 as the td04's will not fit.
nothing else springs to mind as being a problem except getting the oil drain pipe back on when fitting turbo,it can be a pain in the @rse.

safricwrx

will car need rolling roaded /remmapped?

johnnyroper

it will need a remap after.

best off doing some other supporting mods to get best out of the td05,for example.

decat uppipe,full decat on downpipe and centre or fit 1 sport cat.

standard injectors are 380cc so adviseable to get some sti pinks fitted that are 550cc

sti8 top mount intercooler as the wrx will be maxing out and finally a decent panel filter i.e k&n or green

obviously this is depending on what sort of power you want to achieve.

safricwrx

ive seen a lot of modified subarus running walbro fuel pumps, do u think this would help? with all the above mods what sort ov bhp would i be looking at?

johnnyroper

walbro is certainly worth fitting if modding.

not sure on power would guess around the 300bhp mark best to ask a mapper to see what they think.

safricwrx

thank you for ur advice really helpful, i hav been told u need a new ecu to remap a subaru as they cant be altered, is this true?

saiklon

Have you considered just doing a remap and staying with your current turbo? You'll see a big increase in power just from that. You would want to change turbos after your current turbo stops being adequate for your power needs.

I recently made a change from a TD05 16g to a tiny VF11. The reason I'm happy with the change is that the boost threshold is so low now. I don't have to drop down a gear anymore to get boost. For a road car drivability is improved by having your power down low.

You might want to find someone running a TD05 so that you can compare the characteristics of the turbos before you decide.

saiklon

A bugeye ECU map can be altered, you don't need to buy a new one

Tidgy

yeah you've told a load of rusbbish about the ecu being unmappable.

bug eyes can be mapped.

personally i'd go for eitehr a vf35 or a vf34, they will be direct fits so no worries in that sence.

550 injectors
walbrough 255 fuelpump
pannel filter, or cold air induction kit
full decat
remap