Monday, July 5, 2010
Power Up
It was time for the Lil War Machine to undergo a power change.
List is as follows:
GT28RS Garret Disco-Potato
660cc VDO Seimens pencil type injectors
Z32 AFM
DELTA Fin FMIC 600x270x75mm
Nistune ECU- soon to be WOLF V4
Nismo 255l Fuel Pump
Sard Fuel Pressure regulator
Turbosmart Boost Controller
RW output-201rwkw @15lb Boost, (was 151rwkw @15lb Boost with stock Turbo)
The boost curve comes on as stock, however when the old turbo ran out of puff at 6100rpm the new unit pushes hard until rev limit. (dyno chart to follow shortly)
Overlaying the 2 dyno graphs I was amazed at how early the uprated Turbo(GT28RS) came on. Line for line exact with the factory Turbo until 3700RPM then they separate. The old stock Turbo started to drop off shortly after the 5700RPM mark-the Disco pulls all the way up to 8000RPM.
The power is awesome.
We have had an issue controlling the Boost tho. Shortening the Boost Controller line helped(instead of running from the Plenum we now run from the inter-cooler piping close to Turbo outlet) but still have a 2lb spike to deal with instead of 5lb.
I will be installing a WOLF V4 aftermarket ECU shortly. This will eliminate the Air Flow Meter as the ECU has a 2bar MAF sensor so we can tune around any boost fluctuations which I believe to be the result of a high flowing internally gated Turbo such as the RS
This is a great MOD to do to your RB20DET
List is as follows:
GT28RS Garret Disco-Potato
660cc VDO Seimens pencil type injectors
Z32 AFM
DELTA Fin FMIC 600x270x75mm
Nistune ECU- soon to be WOLF V4
Nismo 255l Fuel Pump
Sard Fuel Pressure regulator
Turbosmart Boost Controller
RW output-201rwkw @15lb Boost, (was 151rwkw @15lb Boost with stock Turbo)
The boost curve comes on as stock, however when the old turbo ran out of puff at 6100rpm the new unit pushes hard until rev limit. (dyno chart to follow shortly)
Overlaying the 2 dyno graphs I was amazed at how early the uprated Turbo(GT28RS) came on. Line for line exact with the factory Turbo until 3700RPM then they separate. The old stock Turbo started to drop off shortly after the 5700RPM mark-the Disco pulls all the way up to 8000RPM.
The power is awesome.
We have had an issue controlling the Boost tho. Shortening the Boost Controller line helped(instead of running from the Plenum we now run from the inter-cooler piping close to Turbo outlet) but still have a 2lb spike to deal with instead of 5lb.
I will be installing a WOLF V4 aftermarket ECU shortly. This will eliminate the Air Flow Meter as the ECU has a 2bar MAF sensor so we can tune around any boost fluctuations which I believe to be the result of a high flowing internally gated Turbo such as the RS
This is a great MOD to do to your RB20DET
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