Car Cannibal
20+ Year Contributor
- 532
- 58
- Jun 7, 2003
-
Chicago,
Illinois
Dsm-monster, you make some great points and put a lot of time into your posts.
I'll start the clock...
Now water as the sole Pre-Turbo will have these issues to keep in mind.
1) Being that water doesn't evaporate as fast as Meth, this means you run the risk of it not totally evaporating at low boost. = Comp blade damage and not the full spool up potential Meth will have being sprayed even at 0psi (can't be colder than 55 degree ambient).
2) Since water has a higher flash point (not usually described that way), you'll never be able to run a lot of it in comparison to Meth (Pre-Turbo especially). = Finding this threshold of how much water can be sprayed until droplet issues vs Meth volume needed to match waters heat absorption, would give Meth the cooling benefit at the wheel and still not cause damage. This to me is the one area that hasn't been explored with enough data. Water can only go so far, while doing a great job, before causing droplet issues due to volume. Meth could be sprayed to a volume point to out cool water and still not cause this droplet issue. We just haven't found the volumes and micron mist needed but the community is getting closer. I suspect companies like AIS are getting happy Big Block clients due to them injecting so much Meth Pre-Turbo, it's causing good drops in housing temps aside from large density gains (comp eff). They risk turbo blade erosion but they've yet to show any blade damage from droplets.
On AI spray location two, after the turbo (before intercooler), that Meth will eat the hell out of your intercooler core faster than your turbo blades. You'd want to guarantee evaporation by only using a 2gph here also to save your core from a corroded death. But this again will help density which is what we're after here with Pre-Turbo (reenact winter).
I'll start the clock...
Now water as the sole Pre-Turbo will have these issues to keep in mind.
1) Being that water doesn't evaporate as fast as Meth, this means you run the risk of it not totally evaporating at low boost. = Comp blade damage and not the full spool up potential Meth will have being sprayed even at 0psi (can't be colder than 55 degree ambient).
2) Since water has a higher flash point (not usually described that way), you'll never be able to run a lot of it in comparison to Meth (Pre-Turbo especially). = Finding this threshold of how much water can be sprayed until droplet issues vs Meth volume needed to match waters heat absorption, would give Meth the cooling benefit at the wheel and still not cause damage. This to me is the one area that hasn't been explored with enough data. Water can only go so far, while doing a great job, before causing droplet issues due to volume. Meth could be sprayed to a volume point to out cool water and still not cause this droplet issue. We just haven't found the volumes and micron mist needed but the community is getting closer. I suspect companies like AIS are getting happy Big Block clients due to them injecting so much Meth Pre-Turbo, it's causing good drops in housing temps aside from large density gains (comp eff). They risk turbo blade erosion but they've yet to show any blade damage from droplets.
On AI spray location two, after the turbo (before intercooler), that Meth will eat the hell out of your intercooler core faster than your turbo blades. You'd want to guarantee evaporation by only using a 2gph here also to save your core from a corroded death. But this again will help density which is what we're after here with Pre-Turbo (reenact winter).