Rod Underwood

I need the increase in value of a supercharged S4. I know this is a problem question, but it is a serious inquiry. Does anyone have any documentation on the potential increase in the selling value of a supercharged S4 over a stock version.

Personal experience based on selling, eBay documentation, etc. I need this for a "settlement" negotiation. ;-)

Yeh, I know, just give me a hand here please with some documentation.

Thanks
Rod

aggravation

Kind of a seat of the pants estimation here on my part.
I originally bought my car with a different supercharger on it and paid around $4000 more than other similar cars were selling for at the time. I didn't know much about 928's and nothing about supercharging a car so it seemed worth it to me as a total novice to the 928 world.
I since have taken that supercharger system off and replaced it with a proper system only able to reuse the Vortech blower from the old system.
So I paid $4000 for a used Vortech blower at that point I realized how stupid I was to give the additional supercharger so much value.

Now I have a well sorted 928 with a quality built supercharger system and do think it would add some value to some prospective buyers but it probably will scare away at least as many.
I figure if I sell the car I will list it two ways: with the supercharger and ask about $3000 more for it or back to stock form at the lower price and sell the supercharger kit by itself for the $3000 or best offer.

I don't know if that helps you at all...basically if I was buying another 928 I wouldn't let the supercharger hold much value in my estimate because there are so many variables related to it's installation and performance.

As for the settlement doc's I do have a hand written bill of sale where the guy I bought it from sold the car for $12,000 and on a separate hand written bill of sale he listed "performance equipment" as an additional $5000 (that particular breakdown was for property tax purposes and my credit union was loaning me $12000 to buy the car because $12000 is what the bluebook quote was).
If you had a supercharged car that is being replaced your receipts should show the investment...does that not satisfy the insurers requirements for added value?

Rod Underwood

Thnaks, This is the kind of information I need. As it turns out, this is not for an insurance documentation, but for a "divorce" settlement and she feels that the value of the car is increased by the cost of the twinscrew and it IS, but only to me.

I've read previous posts that some "purists", clearly not me, consider this addition to be a potential decrease in value over a stock version. i.e., if it has a supersharger, then it has been "beaten" and is now suspect.

Thanks, keep those cards and letters rollin' in.

Somehow it seems appropriate that I would get a response from "aggravation" under the circumstances. ;-)

Rod

ptuomov

The two of you list it on ebay with no reserve and see what you get. Give it enough time so nobody can claim potential bidders didn't know about it. Then, right before the auction ends, bid to be the highest bidder on the car and buy it yourself. This is the market price. You two split the proceeds and you keep the car.

John Speake

I think the increase in value would only amount to the price you could get if you took the s/c off the car and sold that seperately.

Many people would consider a s/c car as a negative when buying the car, and attribute a lower additional value than you would get for the s/c parts.

morganabowen

Based on what I have seen here on RL, it does not appear to me that the SC adds any monetary value to the vehicle. My guess is that unless you find that specific individual that recognizes the value of the SC and the money that has gone into the vehicle, the average joe on the street will probably discount from the value of the car. If you reside in a state that has smog checks, you have to remove the SC eveery two years as one of our members eluded to recently. Joe Dyer is selling a well made professionally upgraded 1993 GTS with an outstanding SC on the car. He has not been able to sell it and currently has it on E-bay with a starting price of $29K I mean, he probably has a hundred grand in this car IMHO if you install a SC in your car, you do it because it is something that you want, and are not doing it to increase the value of the car Just my 2 cents

Alan

Sadly for you I think Larry is correct... not only does it not add value - it scares off most potential buyers.

Alan

James Bailey

The blower is a DEDUCTION...the car is illegal (Federal law) and cannot be sold in many states where they do inspections smog checks. Also all performance modifications imply that the car was driven hard for example put a roll bar in a car and it's value goes way down. Why not list it on E-bay with a high reserve and see what the REAL value is ...what it could be sold for, what you paid is irrelevant , what you spent fixing / upgrading irrelevant , what it is worth to you irrelevant .......what matters is what it can be sold for TODAY. Let E-bay fix the price . Just like your 401k plan the value is what it can be sold for TODAY, not what it was a year ago.

Rod Underwood

Thanks, please note that I don't WANT it to increase the value of the car in this instance. In fact, since I will probably never sell any of them, I don't care. I just need this for a divorce settlement and the answers I've gotten are just fine.

Thanks
Rod

ew928

IN that case.

Dammit, Jim, er Rod.
You've ruined a perfectiy fine German GT.
No one would want it now that it can't breathe without assistance.
And not sane mechanic will touch it.
You've taken out that variable intake that took the Weissach gang so many engineering hours to perfect.


(Did I go too far.)

PS. Sorry about the divorce thing. I hear they don't always go well.

Rod Underwood

No worries as they say downunder. Everything happens for the best.

Rod

dprantl

When I bought my supercharged GT, the price was on par with a car without a supercharger. You will find that cars with supercharger kits installed will either sell for less than or the same as stock versions.

Dan
'91 928GT S/C 475hp/460lb.ft

pcar928fan

Negative to me for the most part. Unless it was a VERY, VERY well sorted and proven set up I would not touch it with a 10 foot pole! Pretty strong motors and trannies in 928's but they were never designed with boost in mind. If someone has gone in and taken the time to really tune the car at all levels so it runs smoothly on and off boost and has been proven reliable and still has good compression and leak down numbers then great. I might in that case add as much as $7k for the works.

I find that VERY FEW meet those specifications and fewer that have been run for any serious amount of time would pass on a compression and leak down test. Seems to me most folks get rid of their S/Ced or Turboed cars because they are tired of the continual tweaking just to get it to run pretty good and/or they realize the car is really a grenade with the pin removed and want out before it blows completely...

That said, there are some VERY good, VERY well sorted, VERY reliable S/Ced cars on this list...most are NOT for sale at reasonable prices.

YMMV!

Mike Frye

Rod,

Can't help with the documentation here, but in addition to what others have said, I would add that the fact that a car has ever been supercharged would in fact lower the potential value for the reasons stated above.

People who want a supercharged 928 generally want to supercharge their 928, not take over someone else's. HTH .

Rod Underwood

Everyone,

Thanks for your information. I've taken all of this to the person who appraised the vehicles originally and he's agreed and written a formal response to that effect.

You told me what I had hoped was the case. I didn't get it twinscrewed for any reason other than it would make me happy, so I personally don't care about the value, it's just a legal issue.

Thanks a million again.

Rod