which turbo for 300ish bhp

[Philz0r]

hey guys, my car is 98k miles atm and just trying to plan for the future when my turbo pops. (could be tomorrow, could be 2 years time)

my car is currently stage 1a h-dev map (so roughly 280bhp)

im still running standard injectors and MAF but will buy the upgrades when needed.

if i stick a gt28r on, will i need another map or will it be a direct replacement with no hassle

if i go gt2871r will it be ok running at only 300bhp and around 15psi?

is it worth buying a new actuator to go with the new turbo?.


i think my overall bhp goal is 320.

just trying to get my head around potential costs.

cheers Phil

[Hosky]

you can use a gt28r for 300hp, the standard t28 phases out around 290 ish mark i think. dependant on your tubby condition

[crouchy]

If you only want 300ps then you might as well just get a T28r from an S15 as they are about £500 brand new.

Or a GT2871r which would see you around the 340ps mark with injectors, Z32 AFM and a remap

[Philz0r]

hmm, whats the differences between t28r and gt28r? just gt rated slightely higher?

[Hugh Janus]

if i stick a gt28r on, will i need another map or will it be a direct replacement with no hassle

mine got 264bhp fly on a T28R with standard injectors, then made 301bhp fly @1 bar with S15 440cc squirters

if i go gt2871r will it be ok running at only 300bhp and around 15psi?

for a short while I ran my 2871 at 1bar with an SAFC although it was mapped for previous T28r too ran fine, not the quickest of cars mind, then with HDev 3a ECU/Z32 AFM and 555cc still at 1bar made 269wbhp

is it worth buying a new actuator to go with the new turbo?

i would say its worth it, your current one is probably getting on a bit

[Philz0r]

thanks for the reply hugh, if i could get 301 bhp i would be very happy with that, obviously with the s15 injectors.

was that with standard MAF btw?

[Hugh Janus]

hmm, whats the differences between t28r and gt28r? just gt rated slightely higher?

the compressor on the 2871 is the biggest difference, although in terms of performance at full tilt there is a pretty big difference, the compressor housing are very much the same size, the turbine on the other hand looks about twice the size

[Hugh Janus]

thanks for the reply hugh, if i could get 301 bhp i would be very happy with that, obviously with the s15 injectors.

was that with standard MAF btw?

when i got 301bhp with S15 injectors that was with standard AFM

[Jordan_200sx]

I cant seem to find a decent 28 or t28r for sale

[Hugh Janus]

for comparison 2871 left, T28r right

[Philz0r]

total porn

[Philz0r]

what would be best for the ECU map,

go to a local reputable remapper garage or give h-dev a ring and trade in my stage 1a chip for a custom jobby


sorry for being a noob >.<

[Jez]

We're doing a promo for remapping this month - http://www.sxoc.com/vbb/showthread.p...00-off-mapping

[T926_S14A]

For 320 i would go for gt28rs but over that .64 gt2871r

[Philz0r]

if i can get around 300bhp, that would be magic.

thanks for the help so far and i think based on whats been said so far i think im going to go t28r/gt28r with some s15 injectors.

[T926_S14A]

Gt28r will do 300 probly need to run about 1.2 bar on it

[Hugh Janus]

Gt28r will do 300 probly need to run about 1.2 bar on it

my GT2560r did 301 at 1bar, with 440cc injectors

[T926_S14A]

Some people dont see that at 1 bar but suppose its down to map and engine condition, but 300at 1 bar is a good figure