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Supercharger installed and Lag’s buying dinner

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Old 04-06-2004, 04:40 PM
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Tim Murphy
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Default Supercharger installed and Lag’s buying dinner

Lag bet me that there would be no way I could install my sc kit on a car, start to finish, in one day and he lost.

This past Saturday I did a complete installation on an 88 auto in 12 hours with the help of two others (Hacker-Pschorr was one). We started at 9AM and two cases of beer, two large pizzas, and a dozen donuts later we finished at 9PM (the car owner and his buddy helped with the beer). The installation went as I hoped and it was nice to get a chance to go through it one more time, which ultimately will help me guide others through the installation process. Now, we did this in one full day and I am not at all saying this is how long it will take someone to do an installation for the first time. There is a lot of work involved with this and if I had to give estimation, I would say 36-40 hours would be more realistic for a novice wrench to get it done. It is not that difficult but it just takes some time to get it all assembled into the car. I did pick up on one or two things for improvement that I will change for future kits but I was very pleased with how it went together. When we did Lag’s car I was scrambling for parts and as a result it took us 30+ hours to perform the same installation with four experienced 928 guys. This time was much nicer because I had every single part that is required accounted for before we began. Once we had everything installed, we started the car, set the fuel pressure and took it for a test drive. The car ran great with no more adjustment required. I am still amazed at how hard these cars pull with the sc installed. You couldn't slap the smile off of the owners face if you tried.

I know that the owner of this car monitors the board and maybe he will chime in with his opinion of his new ride. He appeared to be very pleased with the system and the performance gain.

Anyway, it was a fun day.


Old 04-06-2004, 04:43 PM
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dr bob
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Exactly how much beer and pizza is required? And do you mind flying in to L.A. on Midwest Express? This sounds like a reason to have a weekend tech session, if ever there was one!

Great job!
Old 04-06-2004, 04:54 PM
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hacker-pschorr
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I'm still trying to get the dirt from under my fingernails after working under the wheel well. Guess I should have worn those gloves you offered!

I can't think of another time I worked so hard and had so much fun at the same time. My wrenching experience is mostly American Iron V-8's in Corvette's and some 4-banger Honda's. It will never cease to amaze me the build quality of these auto's. Taking one apart and seeing first hand all the little details Porsche went through to make this car perfect was an incredible experience. I can say my confidence level for working on my Shark has gone through the roof.

There's nothing like working on a car for 12 hours, turning the key and hearing the motor purr on the first try! Hearing the tires lay down a patch of rubber at 9ish PM going into 2nd gear followed by the awesome sound of a SC'd shark with an RMB, is a very close second!
Old 04-06-2004, 05:04 PM
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Jim bailey - 928 International
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Very good job .......... one or two YEARS for a stroker ...... 12 hours for a blower !
Old 04-06-2004, 05:09 PM
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hacker-pschorr
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Originally posted by Jim bailey - 928 International
One or two YEARS for a stroker ...... 12 hours for a blower !
Any musicians in the house? This could make a catchy jingle for a commercial.
Old 04-06-2004, 05:19 PM
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Lagavulin
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Default Re: Supercharger installed and Lag’s buying dinner

Originally posted by Tim Murphy
Lag bet me that there would be no way I could install my sc kit on a car, start to finish, in one day and he lost.
A deal's a deal; oh well, it's for a good cause, and it'll be fun paying up.

Good job; you guys kicked some serious ***! I'm still amazed you were able to have it completely installed in 12 hours...
Old 04-06-2004, 05:20 PM
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Gretch
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"The joy is in the journey, not the destination"...........I took 60 plus hours and enjoyed the journey.........

But it turns out the joy is also in the destination............as far as Murf Supersharks go.............I am crazy about the results I got rom my 89 GT....

You Da man Murf.......................
Old 04-06-2004, 05:29 PM
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Red UFO
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Sounds like you estimated the beer ratio right. Thats one thing I know is beer, shark technology I'm a newbie.

Congrats on the supercharger, now take some video of it in action and post sound clips.
Old 04-06-2004, 05:30 PM
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heinrich
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"One small day for Murf ... One giant leap for 928kind..."
Old 04-06-2004, 05:48 PM
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That's just damn awesome....
Old 04-06-2004, 06:05 PM
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Seth W
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You guys are making me NUTS, NUTS I tell you. First, let me start with congratulating Tim on changing the face of 928 tuning and being such a great entrepeneur (sp?).

Ok, here is why. I have an A4 1.8T and did the APR Stage 3 upgrade (www.goapr.com). New turbo (GT 25), new manifold, cat, fpr, injectors, you name it, start to finish all parts included. The kit cost me 3k! Yes, 3k including new software (I was an early adopter--never again). It raised the HP on my 1.8T from 150 to about 250-260 (a friend had his dynoed at all 4 at 243-but his feels stronger than mine). That said, it has been hell. I have eaten 2 cats (no cat jokes), had the bolts back out of the manifold to turbo area, had a turbo loose the ends of the hot side and had some serious software troubles. All told, the kit cost 3k and the various turbo/manifold pulls and services to keep this "track tested" kit cost me way more than that plus the heartache and time. Those who went before me had nothing but good stuff to say about the APR kit. I later learned that is b/c of some silly intense rivalry with another Audi tuner and these persons desire to claim they had the better kit. Because nobody spoke out, the kits only improved in dribs and drabs and unwary buyers like me got sucked into the mix. I spoke out--nuff said.

Now I have a damn fast A4 that I can't track (the original purpose) b/c it breaks every time I track it. Guess 25lbs boost is not optimal at 1400 EGT????

That leads me to where I am going here--(finally) Tim, there is absolutely no disrespect in this message meant at all (I really mean that) I am a blunt speaker, and writer, and you have been very open about the development of the kit. I'm just going nuts b/c I swore to myself AND MY WIFE that I would never swap positive displacement equipment on a car again (it was that specific). This seems to go a step beyond what I did last time. Put aside the potential long term effects to longevity (and my car at 56k miles has a very long life ahead of it I think) b/c I think they are very minimal. I'm worried about the daily life of the car.

Is everyone having no issues at all in driving these cars? Are these cars no more troublesome that the "average" 928, whatever that is? Am I going to be visiting my local wrench all the time? I have no time (and even less ability) to wrench myself. Is this kit for me??

I don't want to hijack this thread, so if anyone wants to email me directly with there opinions etc. that is great.

The thought of adding 150 or so RWHP to my car and smoking some serious hardware is making me crazy.
Old 04-06-2004, 06:19 PM
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BC
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Honestly, even though the 928S4 is a complex car, it is not NEARLY as complex and "finite user spectrum" built as your 1.8 Seth.

There are two very old computers in your 89GT that you can simply let operate as they always would, but then up the fuel pressure, so more volume and flow happens at the same pulse widths.

Unless you go piggy back or standalone, Tims fuel pressure solution fits the bill perfectly in the centrifugal system.

Alot of your software for the 1.8 was probably there to trick a whole bunch of sensors into doing what you wanted them to.

This is not true on the 928. I have personally taken aprt TWO 928s, every single nut and bolt, and am slowly puting the second back together (S4 5spd , 89) Other then the free standing nature of the engine bores, the whole system is bull;te proof, save some computer weakness in the soldering department By that I mean that if you control detonation with good fueling decisions, and make sure your knock sensors are NEW and hooked up, the car's basic design is perfect for boost.

Your car's status as "GT" will require LESS boost because of the compression, but Gretch sure seems happy with what he got at 8psi.
Old 04-06-2004, 06:33 PM
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Gretch
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Seth W. for what it is worth, the one worry I had about putting this kit on my car is that it would have some bad effect on the "drivability" of the car. IE, that it would go from being an extreemly well mannered super car to a complete animal, that was not suitable for use as a daily driver.

While I have not put thousande of miles on the car, I can say the concern I had proved to be unfounded. the ONLY indication that something has been done to the car is the slight whine the blower makes, and as some have indicated to me here at the list, that noise has abated as i put more miles on the car.

Other wise, driven normally, the car has had zero change in behavior....you would never know what is going on in the engine bay, UNLESS you put your foot into it. Then, and only then, is the difference manifested. The engine goes into boost induction and pulls like a locomotive......It is some very serious s*&t...........

Back out of it and you are instantly back to normal.

The kit is well designed and nothing is "micky mouse" about it. The whole install can be made to look very professional with just a little care to detail. No loose parts, (torque specs on all the bolts), nothing that "looks" out of place. I like my '89GT a great deal, maybe it is my favorite toy. I would not have gone ahead with the install if I had come to any other cnclusion about the quality of Tim's kit, irrespective of wether I spent the money or not.......

Sorry you had such a tough time with the Audi. I bought my A6 bi-turbo with the factory turbos. I am quite happy with the car, even though the turbos produce a turbo lag........

What ever you do, good luck.
Old 04-06-2004, 06:35 PM
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What about the early cars? 80-84

When is that kit ready?
Old 04-06-2004, 07:15 PM
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Originally posted by Seth W
...that I would never swap positive displacement equipment on a car again...
And there's your loophole! You aren't "swapping" positive displacement equipment. You are "adding" equipment.

That should fly with the wife (for about 3.4 nanoseconds.)

I got a ride in OldandNew's SCShark two weekends ago. The 928 was _made_ - made I tell you - for 400 rwph. It handles the extra power like the platform was designed to evolve to at least that level of power.

Not at all like the Z06 which is over-powered by a measly ~365 rwhp on anything other than a smooth road course. On the street the Z06 is like being strapped to the nose of a rocket with sticky gimbals.


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