Re-tune

[RipNGrip]

should i retune my ecu after inserting a new gcg highflow after blowing my sliding performance highg flow?

[Dale FZ1]

Have you altered the boost level?

Given they are likely much the same overall in terms of mass airflow capability, unless you've fundamentally changed something (ie the mass-flow), then the ECU mapping should cope easily with a change from high flow to high flow. That is running on the assumption your existing tune is not overly lean or aggressive on the ignition.

That said, half an hour of dyno time is a cheap way of optimising for the slight spec change. Might also show you where relative strengths of one setup vs the other is.

[abu]

I think because its a completely different turbo, flows different also, probably best to get it retuned for best results or at least put on a dyno and have it checked over to make sure the tune is still safe and its not leaning out/running to rich etc

[R31Nismoid]

Different turbo

Different efficiency ranges, wheels and so on

Retune 110%

[quiksta]

geez another one. It seems theres a slide highflow popping on a weekly basis.

[joeyjoejoejuniorshabadoo]

ball bearing vs journal bearing just for a start

[RipNGrip]

Yeh the bb gcg seems faster spooling and i thinkit is a stronger turbo however ihaven't really driven it much just a quick run than home! i think i will book it in for a retune at mercury. thanks guys just annoying having to get time off work to book the car in and i have been missing boost!

[MBS206]

Yeh the bb gcg seems faster spooling and i thinkit is a stronger turbo however ihaven't really driven it much just a quick run than home! i think i will book it in for a retune at mercury. thanks guys just annoying having to get time off work to book the car in and i have been missing boost!

Go to work, ring up from work, book car in.

Drop car off one morning before work, pick car up that afternoon after work.

Where was time off?

[Beer Baron]

I say put it on the dyno and see how it's running. it may or may not need a re-tune. but a quick dyno check will tell you for sure.

[eddieeeee-ro]

u'll be able to run more boost on that gcg turbo, may aswell get a retune and more power