Just wondering are you mocking this up with a big alternator (G/H body) or regular (W body) one?
The fuel rails - are you saying the fuel rail posts on the LIM are totally unusable like they're covered up by the adapter?
Also where would you look around for a TVS for this setup?
I attached a pdf flyer for a contact I'm trying to get in touch with at edelbrock about their universal tvs units to get info. I want to see how big that 1740 is for fitment purposes. I'm sure they won't be cheap but if it works out really nice I can't say what'll happen..
I mocked this up on a 2002 SSEi, so presumably the "big" alternator. The camera on my phone is broken and only takes fuzzy pics, but there is no way, no how that the TVS 2300 will fit with an alternator...the body of the TVS extends nearly 4" past where the M90 stops. It's not just a little bit into the alternator, it's a lotta bit. It would possibly fit with a ZZP relocation kit if you cut one of the mounting points off the supercharger and possibly clearance the housing and/or alternator and/or relocation bracket. To demonstrate how much of a problem it is, I did this while changing coolant elbows, so I had the alternator bracket completely unbolted and with it out of the way as far as it would move with the heater hoses and alternator wires still hooked up, I could barely get the TVS pulley into line still.
To answer your second question, the fuel rail mounting studs will have to be removed, otherwise there's no plate to thread into for a couple or more of the M122/TVS mounting holes. They just happen to line up in a few places from my preliminary mock-up. And I found my M122 takeoff on ebay, they have tons of TVSs on there too. Personally, I snagged my TVS from a salvage yard that had a GT500 that had been on fire. Got the sucker for $600 shipped and it's beautiful inside and underneath, just blackened on the exterior and needs blasted or something.
A smaller TVS would absolutely clear the alternator, but if you're having to buy them new, it defeats the purpose because they are stupid expensive and you're definitely stepping into turbo territory as far as total kit cost. This plate would really be more for M122 conversions, I was only fitting it up with the TVS because the M122 is on my car right now. I just shop ebay for take-offs. The TVS take-offs go anywhere from about 1200-2200 depending on what all comes with it and how many miles. The M122s are $500 all day long on ebay. I have seen them go from $350 to around $1000 asking price for ported/pulleyed ones...but there are usually at least a couple on there for a $450-550 buy it now.
I don't know how much less displacement you would have to go with to not have alternator issues, but suffice it to say it would be a lot closer to a stock size. 1740 might do it, since m90s are what, 1474 or so?What changes on these with more displacement is the length of the rotors...overall length is pretty much identical. So bigger displacement blowers have longer rotors and shorter snouts. Think about it...if there are clearance issues with big alternator cars and a Gen V, you know there are going to be issues with 3-4" more of the supercharger housing sticking out in that direction. I do not know if the rate of increase is different in TVS blowers vs the lower helix ones.
Like I discussed before, this problem can be solved by a forward offset of the supercharger, but it has other disadvantages and issues because it would be a significant offset. I had to go around a full inch on my car, in addition to an alternator relocation kit...and even with that, if you wanted to not clearance the supercharger and chop off one of the mount points (a critical one, in my opinion...as it's right at the corner of the outlet and very close to where the belt will be torquing on the supercharger snout), then the plate would run into clearance issues with any traditional alternator relocation bracket you can dream up, or possibly even with the stock alternator bracket itself. As a secondary problem, at 1" of forward offset (which is where my supercharger is currently) you end up with clearance issues with the front fuel rail itself, as well as probably the coils (I don't have them on my car so I can't say for sure...my COP coils are mounted on the valve covers, LS-style). You also end up with more hood clearance issues because the hood slopes down as you come towards the front of the engine bay, especially with respect to the intake elbow/throttle body area.
In other words, the simplest and most workable solution in my opinion, is to move the alternator. I think it will have to move approximately 2" towards the rear of the engine, alternately, you could cut one mount point off the supercharger, and clearance a bit and fit it with just a ZZP alternator relocation bracket. This is what I will be doing on my setup (despite the fact I think it's about as critical of a bolt as there is on that supercharger...I have tensionable 1/4" aircraft cable straps over the top of mine on both ends, so between that and the silicone, I'm not too worried about lifting the snout).
We might be looking at some $$$ for special bolts, especially on the lower, but possibly on both ends depending on what is available locally. The lower will definitely require low clearance allen drive or something to that effect, and the upper will only have 1/2" of threads to fasten into, so the stock supercharger bolts may end up being a little bit too long. Some of the potential solutions I have been looking at are some $3 each, so if we applied that cost to all 20 fasteners involved, we're talking $60.
It has a decent amount of bolt on's that will go well with a bigger blower.
