AAK z28

iTrader: (18)

does direct injection create more horsepower or is it just a more efficient way of getting fuel into the engine?

MeentSS02

iTrader: (11)

By itself, I don't think so, but it allows you to raise the compression ratio, and also lowers emissions.

Blackpanther99

iTrader: (8)

I always had that exact same question. I always heard people saying the direct injection equals more HP. Is it because of the higher compression ratio that lets you gain more HP?

pferris

iTrader: (2)

di lets you run higher compression do to lower temps. Higher compression gives you more tq and that is more hp.

AAK z28

iTrader: (18)

im not an engineer but lookin at the new 6.2 model at the autoshow it looks fairly simple for a cylinder head company to take a set of heads and design them for direct injection on gen 3 and gen 4 motors. but then that would also require redigning fuel rails, injectors, and an intake manifold. probably not worth it

Blackpanther99

iTrader: (8)

Agreed^ doing DI makes you start changing stuff around for the same reason. Labor for all that is also more expensive.

MeentSS02

iTrader: (11)

I think this is one of those situations where if you car didn't come with DI straight from the factory, it would probably be cost prohibitive to do a conversion, and for not very much gain at the end of the day.

AAK z28

iTrader: (18)

agreed^