Greetings.
Assuming a figure of 290/300 hp, having a slightly larger turbo and the support modifications, installing giant green injectors (0280155968) which FPR should be used?
Standard 3 bar or 3.8 bar?

I would like to update them, I know that the original injectors would support this setting but would work almost at the limit and after 27 years I think it does not hurt, from what I understood studying other old posts, the VXR Blue injectors (0280156280) would be too much for this or am I wrong?

Thanks

With both of those injectors the standard 3 bar regulator will be fine.

Either of those 2 injectors can be mapped to work with the Coupe, both are old designs and well known. The thing to understand is that the greatest effort and time is spent getting a larger than standard injector to work correctly on closed loop fueling - by contrast open loop is relatively straight forward.

The mapper will likely have a preference for one injector over another as they will have done the work on closed loop on one but perhaps not the other or to the same extent - they can therefore 'copy paste' the closed loop fueling data and focus on the simple open loop fueling.

Speak to the mapper you intend to use regarding injector choice.

Thank you