Tim Murphy

I hope this is ok to post here. I have a website in the works that should be online soon but I thought I would let everyone know that I have a couple of supercharger kits ready to ship if anyone was interested.
The kit includes everything that you would need to perform the installation right down to the fasteners and cable ties. Also included is a 38 page color illustrated installation manual. Right now the kit is only for the 87MY and later cars and will give you 8psi of intercooled boost that should result in a conservative 425rwhp. My personal car made 465rwhp at 8psi with just an OTT x-pipe. These are the first kits to be released to the public since the successful beta installations. The cost of the complete kit is $8k, shipping included.

If anyone has questions they can either email me or they can ask them publicly here so anyone who wants can follow along. If you would like to ask questions privately that is ok too and I will keep them private. I’m happy to exchange phone numbers as well.

Email: tmurf928@yahoo.com

BTW, I have not done an installation on the GTS cars yet so anyone interested with a GTS would get a 5psi kit to start with and we would take it from there.

I have other versions of the kit that will be available for modified engines with much higher HP potential but those will need to be discussed on a case by case scenario. These kits would include custom made pistons and head gaskets to start with. This is still in development and it won’t be until spring before they would get fully tested.

Thanks,

Z

I have a question!!! Will the custom made pistons work in the stock block, without any boring, block plating, sleeving, or any of that kind of stuff, and will they use the stock connectings rods, or will new rods be required with those pistons?

Tahoe Shark

Tim

Are you limiting the boost on the GTS's because of the increased compression ratio on that model, or because you have not had one of these models on the road to test yet? Will there be a pully option later that will produce 7-8 lbs of boost if it proves to be safe?

Thanks

Tim Murphy

I don't believe the higher compression on the GTS will be a problem. I have run 11-14 psi on the S4 cars and it was ok. I will admit that some other thing reared up at those levels but that's being addressed.

I have been told that some GTS's have had detonation problems in stock form, so I would just like to take it slow with them until I get a chance run the kit at a lower level and be confident that it works fine at the 5psi. My gut feeling is that there will be no problem but I want to test it first. The upgrade would be free of charge (would require a different pulley).

Tim Murphy

The 87 and most 88 cars come from the factory with the 944 turbo rods. In those cases the rods would be fine. The pistons will be custom made to my specification and will run in the stock alusil block. Because the pistons will be custom made, they can be made to a specified compression ratio and bore. If you wanted to raise the RPM or go with a stroker crank then you will have to go with custom rods, most likely Carillo in that case.

Tahoe Shark

Thanks,
I'll think about this. If I hired a competent shop mechanic, what would you estimate the installation time to be? Give me a high and low amount of hours if you can I want to estimate the labor costs.
Thanks

BarryW

Would the kit work on an '86 if the intake was upgraded to an S4 intake or does it require the knock sensors of the later models?

Jfrahm

Are these forged rods? Only the 1986 944 Turbo rods were forged, in later years they used cast rods. 1983 944 rods are also forged.

-Joel.

Tim Murphy

We did put one on in a long weekend. I was doing a lot of documentation so that took a little longer but I did know up front how it was supposed to go together. I know I'm beating aroung the bush a bit here but, I think 20 hours would get the job done, even doing it for the first time. Most of the parts you get in the kit are now pre-assembled. When we did the installation over the weekend, I had to figure out most of that and that took a lot of time. I would like to think that "I" could do the whole job in one day, although I have not done that. Is this vague enough for you?

Jim bailey - 928 International

Barry the 85-86 uses a vacuum hose to the ignition box to adjust advance but the 87> relies on knock sensors to retard the timing as needed . That is a much smarter system .

Tim Murphy

Yes, I believe it would work with the S4 intake. No, you don't need the knock sensors.

Tony

Be funny if Marc T showed up at the '04 OC with one of his NA monsters and your kit on it!

Per the Weather Channel, I heard its 32'F in HE## today

Tim Murphy

I really don't know the answer to that. I do know that the 944 turbo rods are a lot beefier looking than the later ones.

Jim bailey - 928 International

to fit an S-4 intake you must grind off a couple raised castings on the block . The intake ports are smaller on the 85-86 , all the throttle cables and trans pressure cables are different . The belt driven cooling fan must go .

Tim Murphy

Thanks Jim.
I can't give any advice as to what it would take to convert to the S4 intake although with the S4 intake you would have the required room for the intercooler. I know Marcus3.com converted his, possibly he will chime in on what he ran into. He is the only one that I know of that made the transition.