Noob Alert - Turbosmart Boost Controller

[Jip]

Hi,

Found out my stock RB25DE turbo NEO is running flat 12PSI. After a reading a bit on here people are saying not to go above 10 PSI on the stock series 1 turbos due to reliability concerns. I'm enjoying the RB symphony during a weekend morning cruise with the odd squirt.

This car I've purchased has a manual dual turbosmart boost controller, thinking of turning the low boost setting down to factory. To do this could I just turn the low boost dial on the controller down and it will return to factory boost? Will this impact anything else eg will I have to get the car retuned? Couldnt find much information about this scenario on the net. Planning on leaving the high boost setting as it is.

Looking to learn about these things so could someone give me an idea. Being an import I dont have any other history on the car eg if its been tuned etc.

[Duncan]

I'm not familiar with how those are set, but conceptually yes, if the low boost setting is stock then the car will be happy as long as it was never tuned for higher boost in the first place (ie, it is still an unmolested standard computer)

Alternatively, you could keep running and enjoying the car at 12psi, it is not an automatic death sentence for the turbo, just riskier. If it goes there are reasonably cheap high flow bolt on turbos you could replace it with

[GTSBoy]

Turbo should be fine on 12 psi. The 10psi limit is less about the turbo than the ECU going too rich and retarded. You can't have the standard DET ECU (can you?), so you shouldn't have that problem.

The turbo itself should be fine at 12 or 13 psi forever (barring bad luck).

[Jip]

Thanks for the insights.

If the turbo does let go is it much of a headache with collateral damage/cleaning bits up?

[Duncan]

No issue really, it just stops going whoosh and will be off the road until you replace the turbo (a high flow standard turbo is the quickest)