WIP Beta released Viper's Assorted Engines Pack 0.1

ViperGaming submitted a new resource:

Viper's Assorted Engines Pack - Adds iconic engines to your favorite cars! (2JZ, RB20DET, Subaru Boxer, More Soon!)

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Real 2JZ-GTE torque curve looks like this (I would recommend to ignore bit below 2500rpm as it is more of fluke from dyno)


This is how boost behaves, this is not with stock boost setting, but boost curve behaves same with stock boost, when big turbo starts getting exhaust, it causes boost to drop for a moment, which is signature of 2jz (blue line is boost):


That is under full throttle as these things always are, part throttle boost is something bit more challenging to tune.

This is what Toyota claims torque curve to be, which is just overly smoothed representation that is not much to do with reality:

They also have this in Japanese brochure, see how truth gets 'bent':


But that is not all that you need, you need turbo compressor maps, there are two turbos of different size, so you need to find out what available compressor maps would match each of them and made one combined guestimate map for it.

But there is more to turbo than just a model, like T3 turbo, there is trim, here is 40 and 60 trims of T3 which are quite different island shapes, so finding correct turbo model compressor map is not enough, one needs to find correct trim of it or then have to have information which would be close match of the original.


Then it is this section where you have to write correct rpm and psi, from map you create, above maps might not match well at all, they are just an example, you have to do research:
"pressurePSI":[
//turbineRPM, pressure(PSI)
[0, -3.5],
[30000, -1],
[60000, 2],
[90000, 8],
[150000, 11],
[200000, 15],
[250000, 19],
],

Of course pressure ratio needs to be converted to psi and numerous other things are there to challenge from engine friction to fuel consumption, but that is in short how you create something like 2JZ.

 

Does this mod add the "engine exhaust" option and the "Hood Cutout" option for the Hirochi Sunburst? I can't figure out if it came with this mod, or another