New turbo.....help please

[n6ray]

Basically my turbo is dying a loud and smokey death, and basically i'm contemplating getting a bigger turbo rather than just a direct replacement......

My car is pretty standard other than a trust air filter(mushroom sort), a tomei manifold, an apex turbo elbow and de-cat and a cat back blitz nur spec exhaust. It also has a baffled sump, but that shouldn't matter?! oh and the clutch I've got is an exedy organic sports.

The choice is either to replace with a standard gt2560r or get a gt2871r, but if i did go for the bigger turbo what else would i need to do?! and if i just bolted it on a left the car standard would i see much gain?!

Thanks in advance......

 

[Adam L]

You'd get away with running a GT2871R on stock injectors but it's almost pointless. It's a physically larger turbo in every way, so there will be gains but very minimal on standard boost pressure.

Put it this was, if you want to run a larger turbo, the costs don't stop once you've bought the turbo...

 

[Kango]

+1 to what Adam said. To make the most of the bigger turbo you'd need

Remapped ECU
Bigger injectors.
Z32 MAF
MHG

That's just for starters.

 

[n6ray]

Whats MHG??

 

[meddler]

Metal Head Gasket

 

[sx-si]

why does he need a headgasket on a 71r?
unless your screaming the living death out of a 2871r and pushing for 400 then maybe
but just running around 1.2 bar on a 71r then you shouldnt need one at all

also your missing a fuel pump
and a front mounted intercooler
then you shouls see a minimum of 320 at 1.2bar

 

[meddler]

How about this turbo? http://www.full-race.com/store/turbos/borgwarner-efr/borgwarner-efr-6258-turbo.html

 

[ichigo-300]

BorgWarner EFR range nice, completely re written the rule book on turbos with integral BOV and other goodies, would like to see one of these on a 15.
Just to add to sx-si list, also need an FPR and a good idea to go with a new set of braided lines for the turbo.
Now the £££ start to add up.

 

[Auss15]

If you want to keep the car lightly modified then I would consider a GT2860R/GT28RS. Its a good upgrade from the stock turbo if you don't want to change cams,injectors AFM etc.