Anyone here inject in between SC and IM? Currently I am injecting via TB spacer but I noticed my SC start making noise, took it apart and my needle bearings appear to be losing grease and I think the methanol is flushing it out. So the alternative is to inject via spacer between SC and IM. Anyone here inject there?

My three concerns are:
-Pulley clearance to car front bar as I also have phenolic spacer
-Belt (I have stock LSJ belt with ZZP adjustable tensioner, phenolic spacer, 2.9" pulley with ATI OD super damper)
-Mixing/atomization (will the water/meth mix for even distribution to all cylinders?)

 

The methanol is not causing your bearing to lose grease.
Methanol turns into a vapor and doesn't sit long enough inside the blower to ruin bearings.

How many miles are on the supercharger using the 2.9?
Has it ever been rebuilt?

What size nozzle are you running at the TB?

 

I bought it used from my tuner Steven Weller. From what i understood he put maybe 4 to 5,000 miles on it with 2.6" pulley. I maybe have 10,000 miles on 2.9" pulley. Never been rebuilt. That is what I am doing right now. I also got snout bearings but I don't think they need replaced yet.

Running 2X- 3gph nozzles in TB spacer.

 

Your issue isn't the methanol injection

The issue is that blower needing new case bearings because it's been used and abused.

In most cases the snout bearings are fine; it's normally the case bearings that need to be changed out after prolonged use with a smaller than stock pulley.

Wouldn't be a idea to check your S/C cuppler, and swap it out as well.

 

Mongorat427 has the tools to do the case bearings

 

By case bearings you mean the needle bearings I am showing in the picture correct?
My coupler looked fine. No need to swap it out unless the holes are wallered or worn right? You don't think the methanol has anything to do with it? Seems like a short life for SC bearings to me but if I need to change them out every 15,000 miles so be it.

Edit: If I change the coupler, it appears the ZZP upgraded coupler will work although not explicitly stated. Just wanted to double check here.
I ordered a blind hole bearing puller slide hammer tool. Hopefully it works.

 

Lets pretend this has nothing to do with my needle bearings as I am still interested in a response about the methanol mixture if I inject using ZZP's spacer between supercharger and IM. Has anyone injected there or does everyone just inject at TB?

 

I didnt even know they made a blower spacer for meth

 

https://zzperformance.com/ecotec/air...cer-plate.html

 

Spraying there is effective
Before the IM spacer was introduced; welding 2 1/4" bungs and threaded in the nozzles were a good alternative.

What are you trying to achieve? Maximum power, or lower iats, detonation control, and power?

A 50/50 mix is the ideal mixture for detonation, iat, and power.

 

I haven't decided if I will inject at TB or between SC and IM. I considered injecting between SC and IM because my needle bearings and housing looked like the grease got flushed out. Now it may not be real significant but I do think it affected it to an extent. If the benefits of mounting the nozzles pre-blower are significant enough I guess I will plan on routinely removing the blower and re-greasing the needle bearings. But according to what you have told me I will have to do that anyway and it isn't to blame on the meth. So honestly at this point I don't know which way to go. I am concerned about clearance issues along with potential belt length problems if I do use the 1/2" spacer between SC and IM.

I have been running a 50/50 mix and plan on running 50/50 mix going forward. I originally installed the injection system so I could actually make some power with 91 as E85 isn't a viable option for me. Using it for all the things you listed.

 

i injected before the Tb never had any issues on m62 or TVS.