My view of the SL-C

Earlier this week I took the opportunity to drive up to the Detroit area and visit Fran at RCR. I came away with a few impressions as a result.


First off let me thank Fran for giving me so much of his time. Even in the morning while he was tied up he Jason personally escort me around and answer my questions. In all I was there 3+ hours looking, photographing, analyzing and questioning.


Here a list of my impressions.


First this is a busy shop. There were at least 4 SL-C's in various stages. A like number of Gt-40's and couple of P4's. There were several other projects in process as well. The Cadi roadster, SL-r's including electric SL-R's, and the new budget racer. There were parts being fabricated to projects I was not even aware RCR was involved in.


The crew there are not mechanics they are craftsman. They do not come from an automotive JC, but rather from places like Saleen, Wheel to Wheel and the OEMs. The shop as a whole is involved in much more then we generally realize. They even have a Saleen S7 twin turbo coming into to receive some RCR treatment. I realize saying all of this might be a disservice to Fran as some might complain that their own personal projects should be receiving more exclusive attention. First let me say as a home builder I am all too aware how inaction is often interpreted as neglect or apathy. Not the case I assure you. Secondly I would much prefer to buy a car that I plan to push the speed of sound in from someone who is connected to the industry at many levels. Someone who has cultivated ties and resources across the spectrum of the automotive community and is plugged into the emerging technologies and techniques. I frankly do not know of any other manufacturer in this genre who can say the same. The cadi show car was the final piece that sold me 100%.


I spent most of my time looking at and talking about suspensions. I have said before that virtually every part of a car is fixable. Bad aesthetics can be painted or molded. Spring rates changed shocks adjusted or swapped. Power is the easiest of all. But bad suspension geometry is for life. I know one of the other cars I really like and nearly bought is a mid engined car based on a C5's geometry. Aside from being a twelve year old design, non-adjustable and optimized for a front engined car whose primary focus is street commuting, that is a good compromise to the effort and expense of developing ones own suspension from a blank slate. BUT IT IS A COMPROMISE.


I wanted to hold it and measure it and talk about the design brief. I wanted to hear the thoughts that went into the design and what was used to bench mark it. I have surmised that some component car builders see the suspension as nothing more then attachment points for wheels. Fortunately not Fran. He has access to some of the better suspension design software and some very experienced suspension design minds. Both of which were utilized. In the end the suspension draws its closest resemblance to that of a Ford GT. A pretty good place to start as that was designed to beat the F360, which it does. Heck even Jeremy Clarkson who hates most things American loves and owns a GT. The A arms on the SL-C are in fact with in 3% of the Ford GT's. I know this to be true as there was a Ford GT suspension at the shop that I could lay to the SL-Cs to compare. While I am at it the suspension arms on the roadster are a work of art. They look just like Formula 1 bits.


I did sit in the black SL-C track car. Man is It low and as with most of these kind of cars you need to find your own method of smoothly accessing and egressing. What is surprising is being inside seems to open up some sort of extra dimensional space. It is much roomier inside then it looks from the outside. I barely fit in a GT40. My head was going to need a gurney bubble but the SL-C was spacious. Drivers position was a bit laid back for me but that is subject to change. There was indeed tons of head room. I can further comit to the fact that there is ample space in the cabin besides the seats and in the passenger foot well (which is cavernous) for several overnight bags. I believe two can comfortable travel with a weekends worth of gear. Well not if one is my wife. :)


Ultimately I came away convinced that this is a world class machine that if the mind was set could undo every record Ultima has claimed. It is clearly in a league of its own and if you are track focused (though require it to be everyday livable) I am hard pressed to rationalize how you could buy anything else.


http://i268.photobucket.com/albums/jj39/NorthShoreCabinets/Carshow005.jpg?t=1232743831

http://i268.photobucket.com/albums/jj39/NorthShoreCabinets/Carshow008.jpg?t=1232743905
http://i268.photobucket.com/albums/jj39/NorthShoreCabinets/Carshow007.jpg?t=1232744043

http://i268.photobucket.com/albums/jj39/NorthShoreCabinets/Carshow006.jpg?t=1232743849

http://i268.photobucket.com/albums/jj39/NorthShoreCabinets/Carshow018.jpg?t=1232744011
 
FYI: "Clarkson owned a Ferrari 355 Spyder, but sold it to purchase a Mercedes-Benz SL 55 AMG. He also owns a Mercedes-Benz SLK 55 AMG. He purchased 1 of 28 Ford GT's that were imported to England, but eventually sold it for a Lamborghini Gallardo Spyder."
 
Thanks for your insight on the SL-C. I am torn between it and the Ultima. While in theory I believe the SL-C to be a superior vehicle, I am still waiting for some real world track data before I make a decision. The Ultima is laying down some pretty good numbers these days. I am very curious to see what the SL-C can do in similar trim.
 
IMHO the SL-C is far superior in design, aero, styling and ease of construction because of the mono chassis (work of art). I do like the Ultima but chose the SL-C for these reasons. Should be on the road if a few months. BTW, I have seen Ernie's SL-C run at Palm Beach Int'l Raceway here in Florida. Ernie was working on brake balance but he was running incredibly fast. Sorry I can't make any comparisons but his car really does it all very well.
 
I saw that. Seemed as though he was going to choke on the choice though.

BTW Fran asked me to pull the pictures till next week when he has something to show or announce.
 
I spent most of my time looking at and talking about suspensions. I have said before that virtually every part of a car is fixable. Bad aesthetics can be painted or molded. Spring rates changed shocks adjusted or swapped. Power is the easiest of all. But bad suspension geometry is for life. I know one of the other cars I really like and nearly bought is a mid engined car based on a C5's geometry. Aside from being a twelve year old design, non-adjustable and optimized for a front engined car whose primary focus is street commuting, that is a good compromise to the effort and expense of developing ones own suspension from a blank slate. BUT IT IS A COMPROMISE.

IMHO it would be far more cost & performance effective to change pickup points-fabricate new A-Arms if reqd to suit a particular application, than to uprate the power or throw new shocks-coils etc at a car to cure a percieved problem. Bad Geometry need not be a life sentence, all you need is the knowledge & fabrication skills to make it right. 99% of the cars racing today find that last few tenths of a second from general suspension fine tuning and its not a fixed target, it changes with weather, track surface, tire type etc.
 
Too a point but moving pick up points is an art and not easily repeated if it does not quite work out. More importantly there is a very limited amount of movement available in most applications as the chassis may not have the proper support for the pickup point in other places.

Bottom line give me the average car and say I need to go around the track 1 second faster. The easiest way will be to add horespower 95% of the time or change suspension components. The last thing I would look to would be a radical suspension face lift.

Still your point is valid and I made too sweeping a statement intially.
 
I saw that. Seemed as though he was going to choke on the choice though.

BTW Fran asked me to pull the pictures till next week when he has something to show or announce.

That's what I figured when they weren't available. Glad you had a chance to see RCR in action. I feel lucky to be very close to them, so I can pop over there easily to see what's cooking. I haven't been there in awhile. I like to keep out of Fran's way as he is very busy, which in Michigan is rare right now. I look forward to the announcement.
 

Craig Gillingham

Banned because I can't follow the forum rules.
First this is a busy shop. There were at least 4 SL-C's in various stages. A like number of Gt-40's and couple of P4's.

please make my day and tell me a RHD version chassis is at least on the rack... hehehehehe

agreed with the SLC over the ultima comments :thumbsup::thumbsup:
 
I too like the styling of the SLC many times more than the GTR. In addition, for me, it is nice to have an American option in the home built supercar market. I hope it is only a matter of time before the SLC has the same following as the GTR.

One issue that I have is the fact that the GTR path has been blazed many times before by folks much more knowledgable about these things than me. As someone commented on another recent thread it would be nice to be able to read build threads and experiences of other owner/builders as you deal with situations others have already experienced. I would feel much more comfortable taking the plunge if that were the case.

I am taking a wait and see approach in 2009 due to the economy. I hope that by the time I am ready to take the plunge in late 2009 or early 2010 others will have their SLCs running with their experiences (good or bad) posted on the web so that I can make an informed decision.

Regardless, I will have to take a field trip north before I do anything. I would certainly like to take a field trip across the pond, but that does not appear to be in the cards right now.
 
Hi and welcome!

As more SL-C's are delivered and the builds begin, more substantive build information will appear. Jack Molleur is most likely doing a build thread and has a few months of the build to go. Ernie might be able to provide build insights when time permits and he has already begun shakedown track runs/reports. I will do my best to provide photos and build logs once my baby has been delivered (medical pun intentional).

I gleen generic build information from many sources: this forum of course, FFR, Ultima, Viper, Porsche to name a few. There are "perls" out there from all sources, but you definitely have to sift through a lot of "sand".

Make it late 2009..........

Doc
 
Thanks for your write-up Girf.
Everyone who has visited Frans shop has had a good experience and seem to think the trip was worth it.

I'm about ready to take the plunge and am deciding on whether or not to pay Fran a visit at his shop and see an SL-C in person before I do. There are a few SL-C projects locally whose owners have agreed to let me inspect their cars but I'm certain I will have questions come up when I see the car for the first time that only Fran can answer in person.
 
Definately worth the visit. Fran's attention to the important details really makes a difference! The chassis alone is worth the admission price.
 
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