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TR2/3/3A TR3 Supercharger

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Perrymip

Perrymip

Jedi Hopeful
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I'm surprised not to have seen more speculation regarding Moss's release of its supercharger. The "kit" arrived yesterday. I'm relieved, that of the tools required for installation, the cut-off wheel is only needed to alter the length of the heater valve extension pipe. There are nineteen pages of installation instructions, but I have all winter to mull them over. And longer than that before I can report anything meaningful, but I admit to feeling very expectant.
 
I just recieved the Moss flyer with the supercharger. I would love to have one, but $$$$.Please let the forum know how the progress is on the installation.
 
Perry, did you actually get it. I remember you thinking about it?
 
Oh, yes. And it is pricey. The "kit" includes an alternator (to adress the space issue), carb, manifold, serpentine belt and pulleys, and an electric fuel pump. Everything looks very snazzy and very considerate, as far as provisioning the installation.
 
Interested in how the kit performs...I've used SC's in the past and the diff can be remarkable in the extreme (with Fuel injection).
Has anyone heard any feedback from other users (other Tr's, MG's etc) as to the reliability or problems?
I suspect they've improved alot because they weren't really practical/popular in the past (when our cars were newer) for destroying motors...i.e lean fuel intake leading to blown valve gear, pistons etc.
Even with FI I was always concerned with rail pressure.
How do the newer SC's fight lean detonation/blow ups?
 
I have many hours in the cockpit of a TR, I'll do the test drive if you are the least the bit concerned.
 
I'm seriously considering the kit for my 4A. Please keep us updated as you progress!
 
prb51 said:
Interested in how the kit performs...I've used SC's in the past and the diff can be remarkable in the extreme (with Fuel injection).
Has anyone heard any feedback from other users (other Tr's, MG's etc) as to the reliability or problems?
I suspect they've improved alot because they weren't really practical/popular in the past (when our cars were newer) for destroying motors...i.e lean fuel intake leading to blown valve gear, pistons etc.
Even with FI I was always concerned with rail pressure.
How do the newer SC's fight lean detonation/blow ups?
Click to expand...

I have yet to read an account of a LBC motor "grenading" due to a modern supercharger. The VIS kit for 6 cyl TRs came out in the late 1990s. Many TR6 owners are running the VIS style kit or the more recent Moss kit. The only safety devise incorporated into these kits is a sneeze valve. Sure, you could blow-up a motor by bolting supercharger to a high compression engine and/or not bother to jet your carb for proper mixture and/or having a too far advanced timing. All these conditions are easily avoided. I am running a VIS kit on a low compression engine, with a carb set-up to give the proper fuel mixture across all load conditions, timing set slightly less aggressive than normal, and use 93 octane gas. As an extra precaution, I installed an ignition boost retard box, but I know of guys who have happily run superchargers for many years without that precaution. Bottom line is that if you tune according to your set-up and maintain all components in a condition so that they work as designed, you will have a reliable power plant.

Scott
 
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