I wish they would make it possible to be able to tune the amount of boost we can have on our cars, for instance, the 2009 Corvette ZR1 fully maxed out with twin turbos only pushes 15 lb of boost with the twin turbo option installed, I know that motor can easily handle 30+lbs of boost, because some car related YouTubers that I watch have the 09 ZR1 and they’re pushing 1200+hp while making 25-30lbs of boost, and that’s only one example that I would want to tune oh, there are a bunch of other cars that would benefit from being able to up the amount of boost
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Does the amount of boost not change with the upgrade of the turbo/charger?? Been awhile since I payed it any attention.
Yes
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Was a little curious and just checked this out… 15 boost with base engine, and, 14 boost with the 8.4L V10, using the TT on both with maxed HP.
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Boost PSI doesn’t mean anything when comparing different turbos, or superchargers for that matter.
For example an Eclipse/Evo 4g63 with a T25 vs a TD05H-16G vs an Evo III Big 16G are all going to have DRASTICALLY different boost curves and airflow even at the same designated boost pressure. Running a stock 13-15psi versus running the Evo III 16G @13-15psi is going to have probably in the ballpark of 50HP difference because of the cubic feet of air per minute.
Another example would be my twin turbo Audi. With twin K03’s @ 18psi the car made 261AWHP on a Mustang dyno. When I put a pair of billet RS6 hybrid K24 turbo’s running the same 18PSI it made 505AWHP. Granted it had a lot more than just turbos swapped but still nearly a 250 wheel horsepower difference running the same amount boost.
People don’t realize that it’s not just the boost pressure. Power is more affected by how much air the turbos are forcing into the engine.
The same concept goes for superchargers as well.
A 4-71 blower, 6-71 and 8-71 are all going to have drastically different amounts of power output even at the same PSI.
Size matters.