Hi guys,
As few may know I have a FWD Nissan Pulsar GTI (HN15).
I've just swapped my turbo over from a clocked S15 Journal Bearing turbo with a .64 housing
To a Pulsar GTI-R turbo with a .86 housing.
the car hasn't been mapped with either yet as I've just built the engine. But I have driven my previous engine mapped, on the .64
My question is what are the differences between the two. It doesn't seem like a massive change but I know it can make a big difference.
I assume it's just the spool RPM and powerband will be slightly later and produce more torque?
Cheers for reading.
Mike.
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