Steve, I think you'll find that water acts as an anti detonant, and regardless of IC efficiencies, or charge temps, can allow higher BMEP's without detonation.SteveN said:Drew, indeed your right, but unfortunatley I still dont have anywhere near enough faith in relying on W.I. to do that.
When it comes down to it, if your intercooler is doing a good enough job (ie kepping charge temps far less than 40deg) it should have no real effect anyhow, and id much prefer to have a decent intercooler setup first and foremost.
Pre-compressor injection I can see an advantage of (at least in theory) as however well the intercooler cools the charge, its still incredibly hot (and hence not very dense) pre-intercooler, somthing pre-compressor inj should help, giving an obvious advantage.
Hi Hugh,Hugh Keir said:kingsley,
I haven't grasped why you would want to inject pre compressor.
Traditionally you use the intercooler to remove as much heat from the air as possible, post intercooler inject the water / methanol and use the latent heat of evaporation to pull the temps down further.
Injecting at any time pre intercooler means that you are reducing the temperature differential at the intercooler which is kinda self defeating.