So I have a GReddy supercharger, and heatsoak is a big problem. Since this forum has a much broader array of enthusiasts compared to a celica forum...I'd like some opinions from people to see if anyone has any good solutions.

I'm ordering a hondata IMG which should help keep the IM a little bit cooler. the orientation of the blower makes an intercooler not possible, and an aftercooler means a lot of custom fabrication that I want to stay away from. has anyone heard good things about a water/methanol injection kit like aquamist? I've heard that the solution can remove the finish on the turbine lobes. Any honest advice is greatly appreciated!

 

i've heard good things about the aquamist water/meth injection, dont know much about it removing the finish on the turbine lobes what kind of finish is on them to be removed

 

the lobes sorta look painted or something...I dunno...eaton mp-62 blower

 

Usually it's a type of PTFE (Teflon) coating I believe, just enough to keep the rotors from galling if they touch under thermal expension..

You need to find out where the heatsoak is coming from, it may not actually be coming from the engine, it may be completely from the compression itself, in which case the Hondata gasket isn't going to do you any good. In fact, if the supercharger is generating more heat locally than the engine, the gasket will hamper the heatsink into the engine (if the engine is cooler than the supercharger). I'm going to assume that the engine will be hotter though. Basically, find out where the heat is coming from, it should be easy to do if you poke around with a temp probe after the car has been running for a while.

Water won't hurt the lobe coating, but methanol is a totally different story. If you're doing injection after the lobes though, I don't know if that will be too big of a deal.

 

The heat is, as you (and I) assumed...coming from the engine itself. The aquamist would be injected before the lobes, so I guess the methanol could be a problem. Does anyone else know for sure?

I've looked into different heatwraps for the intake manifold and intake tube...and found this: http://www.performancepartz.com/inta...3_432_433.html or http://www.designengineering.com/pro...asp?m=sp&pid=3
Has anyone heard of this before? They make sense...but I dunno how much it would actually help. *shrug*

 

If the heat is coming from the engine, the Hondata gasket will help. If you're worried about radiant heatsoak, basically the heat from your engine bay making the intake tube, etc. hot, I would get that stuff either thermal wrapped or ceramic coated. The whole supercharger can be ceramic coated but it has to disassembled first. I wouldn't bother with those intake air coolers or fuel coolers, the warm fuel atomizes better..
Call Aquamist or Greddy and find out more about whether methanol will damage the lobe coating. Don't go on heresay alone, I don't trust most internet rumors at all. this is how it works: The methanol thing might have started out by someone asking "I wonder if methanol hurts the lobe coating" and someone reads that and tells their friend "methanol hurts the lobe coating".. and then then the friend tells his friend "methanol will blow up your supercharger".. and then he tells his friend "this guy's car blew up in a big fireball when he said the word 'methanol'.. " I've heard stuff like that, don't laugh.. lol..

 

you may be able to drill and tap the nozzle into the intake manifold right where the supercharger output is. you will have to use a solenoid or one of those check valves that open at 15psi to keep the water from drawing in by vacuum. im not really familiar with your setup, but i have used water/meth injection and it def works good, not to mention it keeps you cylinders and plugs clean of carbon which further reduces the chance of detonation.

 

The GTP guys use it and spray between the SC and throttlebody by using a 1" spacer and tapping that. They come stock with an Eaton M90 so not much difference in the manufacturing of the two. They have had no problems that I have heard and its been in use for a couple years now.

 

Water is the universal solvent. There are pictures on preludeonline.com and other places of preludes with JRSC with the same/similar coating and the coating peeling off after use of water/alc/meth injection..

Your charge temp is probably around 175-225 deg at full throttle..

Water injection will not cool the intake charge, but it will help with detonation associated with the extra heat..