CamT's build thread

In my blog post #46 I had some detailed discussion regarding my rear view monitor. I've gotten around to mounting the rear camera - it was a PITA. The camera needs to be mounted upside down - why they made this the default and why they didn't make it so the user could rotate the camera is beyond me. So to get the camera mounted in the best location (on the roof) I had to fabricate my own housing.

Here's the orientation the camera needs to be mounted in:



I used a bunch of clay to capture the camera and rough out a shape for the housing:



The idea was to use the clay to capture the camera in place, building up a shell around it.

After curing, here's what I ended up with:



And viewing down into the camera "pocket":



Of course it wouldn't be complete without a little carbon ...





Add a few buttons and it looks like a computer mouse! The camera housing is secured to the roof via screws installed from underneath. I used a thin sheet of rubber to make a sealing gasket.

The Auto Vox X2 I purchased for rear monitor work has a built in dashcam feature. It's OK but I don't think it's up to snuff when compared to the "real" dash cams out on the market. I've got PTSD over an incident from a few years ago and I run a high quality dashcam in all my cars. For the SLC, I've got a Blackvue DR650S-truck. The "truck" version means the rear camera is water/weather resistant and designed to be installed outside the vehicle. I originally went with the truck version because I had intended to mount the camera inside the engine bay. I figured it would get hot and wet and dirty so any as-designed protection would be a good thing. It turns out if you mount a camera inside the engine bay it can have issues with white balance - my camera tried to focus on the interior of the engine bay, making things outside the car appear very washed out. My B plan was to mount the camera near my license plate.



There's a newer version of this dashcam, the DR750S-truck which upgrades the system to a 60fps front and 1080p rear. When I was making this decision 2 years ago I opted to go with the Thinkware dash cams for my normal cars and the Blackvue for the SLC - the Blackvue is the only system I know of that has this external rear camera feature - but at the time the Thinkware cameras were superior, IMHO. I'm sure everyone's got newer and better systems out now so it really pays to NOT buy your electronics until you really need to.

You'll notice there's a third camera just between my two license plate lights. That's a low resolution backup camera I'll be using when inching into parking spaces. It's aimed lower toward the ground and the image it sees will be displayed on my Alpine head unit. Between the low resolution camera, the Auto Vox backup camera, and my two side mirrors I should have enough imaging to back up! I also have a low resolution camera mounted to my front splitter for pulling into spaces - don't want to smash that splitter into parking bumpers!

To display the low resolution cameras I purchased an electronic blackbox gizmo from China that takes the two image feeds, combines them, then spits them out into a single video feed which goes to my Alpine head unit (it only has 1 input). The image is pretty fuzzy but it gets the job done.



More discussion and photos on my blog.

47. I see what you did there
 

Johan

Member
GT40s Supporter
Very nice Cam, is it ok to have the camera mounted that far aft in the shell? How are you going to mount the shell? 3 tubes through the roof tunnel?
 

PeteB

Member
GT40s Supporter
Pete - do you have any shots showing what the dip looked like inside the doors? I assume you painted the car with the bodywork in place - how/where did you mask for overspray and what did it look like in the jamb area? I'm trying to figure out the best way to mask - my first dip will be with the body off the car, but I'd like to know how the spray penetrates the various body gaps and what kind of masking will be needed for future spray jobs.
I taped off behind the body gaps. Just one strip of 2” wide tape was sufficient.
 
Johan - actually you want the camera mounted as far back as possible. If you shift the camera forward the included angle of the FOV shifts forward so the hole you cut has to grow (otherwise you will see the edges of the housing). The shell is mounted via 3 screws; I bonded threaded inserts into the shell and drill 3 thru holes in my roof (inserts visible in the photos above). I have a rubber gasket to prevent water intrusion. There is a 4th hole through the roof so I can pass the wire - it's laid out in more detail on my blog.

Typing up the blog and repeating everything here would be too much so I keep the details here a little lighter ;)

Thanks Pete
 
Not a very exciting update today.

I'm just about finished closing out all the work on the front end. Wiring all bundled up. Time to put my radiator exit duct back in place; I made a mesh covering for the exit. I used an aluminum piece from McMaster - I'm not too impressed by it. It's a bit flimsy, I should have gone with the steel piece maybe. I'm sure at some point in the future I'll be redoing this - perhaps then I'll get the same material and use the process MSetter used when making his mesh covers - they're super nice. But here's what I got ...



I also fabricated a duct piece for my oil cooler. The side vent and my oil cooler are separated by a good distance and I think having the vent just dump right onto the oil cooler probably isn't very efficient. The duct will focus most of the flow right at/through the oil cooler. Unfortunately I didn't plan the cooler positioning very well and the duct piece I made had to be sectioned into two just so I could get it in place. Each half is positioned one at a time, then the two are joined together before being bolted to the body.

Big jump;



From this view you can see that most of the incoming air would likely just flow above, below, and around the oil cooler, rather than through it.



The rough piece - made using foam core poster board.



After a whole lot of clean up ...



Test fitting:





I painted the duct black and made a mesh cover for the intake as well. With the intake in place it's tough to make out the details of the duct - good, cause it's not very pretty!



A few more photos and details on my blog.

48. Duct, duct, goose!
 
If you add some 3D forms to the mesh, it will really stiffen it up and make it what you need. I've never tried it but I imagine you could run the mesh through a bead roller.
 
Thanks for the suggestion. Mark Setter has a really neat technique of using a couple of wood forms and his lift to draw the mesh through to create the 3D geometry. It’s on my list of eventual to-dos, just don’t have the time at the moment.

For the mcmaster material however, I’m not sure it would do much for the large flat expanse in the middle. Maybe if I ran a bead roller through as you suggest but not sure I would like that look.
 
Some more work on my interior; the a-pillar covers were due for installation and finishing. Thankfully the still fit after having installed the windshield. I took a little time to do some things for fun, not because they were critical path.

I installed the a-pillar mounted tweeters - I now have sound to go with my radio! It sounds pretty terrible, just the tweeters ... but at least I now know my head unit isn't a dud :). Before installing the a-pillars I added some rubber trim to the forward edge. The a-pillar covers hide the front roll hoop from the inside, but the bar is clearly visible when looking into the windshield from the outside. I used McMaster PN 1120A868 which has a 1" strip that extends far enough to cover the roll hoop and is flexible enough to go over the bar as the a-pillar trim piece is being positioned.

Here it is in cross-section:



Installed:



It gives this area a much nicer finished look.

I also installed my driver's seat and harness. It was pretty awesome strapping myself in and finally getting a really good feel for what it'll be like when I'm driving the car - can't wait!!



The interior is nearly complete - need to flesh out the passenger side and add a few more details.



I've already added a ton of sound and heat blocker to the rest of the car and the doors are no different. In fact the doors are a bit unique in that they're actually a 4-sided tube on either side of the cabin - a great tube for making noise. Even better when you stick a speaker in them. So I'm putting a lot of effort into this area in particular. If you're really into this subject follow the link below to my blog for more details.

Now that the interior's getting pretty well sorted it was time to throw my body panels back onto the car - boy does this car look awesome! The feel is completely different now that it's out of gel coat and primered. I'm really digging this storm trooper look!



With the doors back on the car I took a few minutes to throw my carbon door trim on - is there such thing as too much carbon? I don't know, if there is ... I'm probably skirting it ... just barely ...





The red really stands out when the lighting hits it right.



As always, more photos and discussion on my blog.

49. Working from the inside out
 
Double post, oh my! I'm on a roll ...

... but this subject isn't too interesting though it's one that's been on my mind for a while. I've danced back and forth on whether I would frit my windows. Unfortunately I had some paint issues which made it necessary. Dan did a great job summarizing his experiments with fritting. I ended up using the Rustoleum 2X rattle can instead of the Fusion he recommends. Not because I'm trying to be different, but because they didn't have any Fusion available and I was really in the mood to frit!



Adding the frit really does a nice job to clean up the borders and makes a much stronger contrast between bodywork and glass. Frit. Do it.



I'm using mechanical fasteners to attach all my polycarbonate pieces. I also plan to use some type of weatherstripping to seal the edges - more info on these later as my frits are curing. The can says 5-7 days to achieve full adhesion/hardness so I'm paying heed.

If, as it was for me, fritting has you a bit nervous, follow the link below for more details on how to proceed. It's a seemingly simple process but you've only got one shot at doing it right. If you're installing the rear window louvers the two large side pieces you hack off the back glass are good practice material. If not, good luck!

50. What the frit
 
The car is coming together so well with all the custom work Cam, too many items to compliment but a shout out specifically on your dash design, I like the way you centered the stack by shifting it over.
 
Had a pretty sweet day today - drove the car a few times around the block! It started out kind of sucky - my HP fuel pump was dead and the car wouldn't start. After swapping for a replacement things started clicking and I was able to get the car under its own power.

This is a straight copy from my blog -

Second round of initial thoughts? Hard to say. Once again, I really wasn't in the mindset to do a critical walk-thru of everything I was experiencing, I was just kind of experiencing it.

Here's what I can say so far:

  • The steering wheel feels a bit low. I'd already raised it about 0.5" from the highest factory setting but it feels like it could be even higher. This might be exacerbated by my seating position.
  • I'm sitting pretty close up on the wheel. It almost feels like the wheel is at my chest. I chose this seating distance because I felt I needed to get right up on the wheel for no/slow speed maneuvering. It's true - at a stop, it takes a LOT of effort to turn the wheel (at least for me). Once you get the car rolling, even at a snail's pace, steering effort drops off dramatically - almost too much maybe. I need to get the car up to real speeds but at the 30-ish MPH I was hitting steering effort is lower than I'm used to.
  • Coupled with my seating position - my right elbow is too close to my center console. I made my console high so I could have a storage pocket there but that may have been a mistake. Pushing the seat further back moves my elbow further away so maybe that's the solution - or I make a new console. When turning right, it seemed I would tend to grab the wheel at 12 o'clock to initiate my turn because I didn't want my elbow fouling the center console.
  • The car feels soft. I've got front and rear suspension set at 10 clicks of compression and rebound. Even at this setting the car feels soft - almost zero harshness at all. That's not to say the suspension doesn't feel precise, it's just not beating me up like I'd expect it to. Not enough transitions to get a good feel, but the car felt FLAT. No body roll. It's weird to feel the car turning and remain flat, and yet be soft at the same time.
  • Initial alignment seems OK. Vehicle was tracking just fine and the car didn't pull on braking.
  • Brakes don't have much bite. I didn't get on them too hard - no panic stops, just smooth, consistent pressure from 30/40ish down to 0. But there's no initial bite like there is in my German cars. Brake pedal is firm. It's going to take some time to get used to the new pedals. Heel/toe was easy to do - I had tried the maneuver a few times in the garage and wasn't sure I'd be comfortable doing it but it felt very natural while driving.
  • Shifter is awesome. I didn't even think about it while driving. Shifting felt a bit clunky in the garage with the engine off but with power and under motion the transmission shifts like it was lubed in 10 lbs of butter. Smooth. Not notchy like I expected. Reverse is easy to engage and feels natural (for someone who's never had to engage a lockout before).
  • The seat feels good. I'm a pretty small guy and the bolsters feel good. Not overly large and didn't try to crack one of my ribs. The harness also feels good. I'm on the small end of the spectrum when it comes to what Schroth had designed for - my belt adjustments are almost maxed out. None of the belts felt like they were digging - I was originally a bit worried about the 2 crotch belts but I think their loop design works to give the crotch belts more articulation and less surface area.
  • Acoustics are OK - thankfully. I had a pretty terrible time in JBurer/Allan's #17 car. The acoustics in the car were giving me a headache after a short drive. Lots of echo and ringing in the car. Jury is still out on my car but I didn't feel like my ears were getting smacked on from all sides. It'll be different once the windows are installed so fingers crossed the acoustics will still be acceptable once that happens. The cabin isn't quiet by any stretch of the imagination, but all the sounds are good. Engine and exhaust come in nicely but aren't too overbearing. Downshifts and exhaust pops sound pretty bad ass.
  • The car feels light (to me). Keep in mind my daily drivers are an electronics laden S5 and Q5, neither of which are dainty. But this car feels super-light ;). Power feels good for now, though I haven't really driven it in anger. I probably haven't gone past 50% throttle - trying to keep things responsible for now and not break things ;). I'm excited to see how it feels on the road, at speed, and with traffic.
  • Transmission gearing - yeah, feels short. Not too short just yet but I've been floating near the 2/3 shift point at relatively low speeds and the engine's revving a bit on the high side. Normally I'd lug my engines a bit more and keep the RPMs lower before shifting. Jury's still out on gearing.
  • Engine - hasn't broken a sweat yet. The cam is pretty lumpy; it's not as bad as my Mustang was - that got to be such a pain in the butt to drive I hated starting it up. As lumpy as this LS376/525 is, it seems tolerable for the street. I think a tune is mandatory. It needs to get smoothed out and I'd even be OK bumping the idle speed a bit if it meant holding a steadier speed at idle. This engine seems to like to rev. As I said, it hasn't broken a sweat and I haven't mashed the go-pedal yet but it spins seemingly effortlessly.
  • Forward view - actually pretty darn good. I thought the thick a-pillars were going to be annoying but they're in such a place that it doesn't cut down on my side and forward view enough to be annoying. At least not yet.
  • You sit really low to the ground. Really low. Without having driven in traffic yet it's hard to get an appreciation for how different the perspective is with other cars around. I can tell this is going to take some adjustment.
  • AutoVox mirror - works pretty darn good. I'm super happy with it. Resolution and clarity/sharpness is good. Awesome that you can adjust vertical imaging with your finger. No issues with vibration. Compatible with polarized lenses.
Excuse the terrible editing - I didn't try to make this a nice video.

Cam's Superlite SLC - 2nd road test (Youtube link)

... and a few photos ...















If you want the long and (not) sordid story click below for my blog!

51. Failure to launch
 
I had an awesome day today! I've completed the next step of climbing the rungs to register the SLC. Just 1 more hurdle (emissions) and my car will be street legal!

I drove the car about ~20 miles and had an absolute blast, first experience being in traffic. Some more driving impressions (copied from my blog).

More impressions of the SLC:
  • Again, it's surprisingly comfortable. The suspension on 10 clicks compression/rebound at all four corners is still very soft on smooth roads. Apparently the roads around Bob's house are very smooth. On the more broken roads I experienced today that familiar harshness came back - the kind I'm used to on my S5 when I've got the suspension in sport mode. The harshness isn't jarring, but it's there and it leads to some neck fatigue, at least it did for me. I think if I'll be daily driving this car I'd back down on the shock settings a few clicks.
  • The Tillett B5 seats are very comfortable - for seats that have 0.5" thick pads, that is. You're going to be sore after a 10-hour road trip, but the seats are generously curved and it doesn't feel like you're sitting on straight boards and the seats aren't pushing up on the backs of your thighs. The bolsters aren't excessively wrapped - resting my elbow on the center console is quite comfortable. I pushed my seat back a few clicks and the farther seating stretches my arms just a tad, enough so my elbow isn't fouling on the console like it was the other day.
  • I was worried about my feet getting screwed up with the Tillton pedals - it looked to me like the pedals were too tightly spaced - but the clutch, brake, and gas pedal feel fine once you're used to their positions. I have a small dead pedal located just next to, and in-line, with my clutch pedal - it's a nice place to rest your left foot when not actively shifting. I was worried about heel/toe downshifting but the more I got used to the pedals the smoother my inputs were. Downshifting the Audi shifter is just as fun as rowing through the gears.
  • Visibility is surprisingly good. I thought it would be total crap. So maybe my low expectations have led to a delightful surprise. Forward visibility is good, though the driver side a-pillar did become noticeable at times. The 6-point harness makes shoulder checking out the driver side window difficult. Between the rear view monitor, the side mirrors, and looking out the windows, it doesn't seem like there's any blind spot - a very pleasant surprise.
  • The APR GT3 side mirrors are decent. They're stable at speed and they provide a pretty good view. They're not convex and I think that's OK. Convex mirrors would give you a wider view, but I've always felt the distorted view screwed the image up too much to be useful to me - details get lost. I'd rather have the narrower viewing angle but no distortion.
  • I'm very pleased with the Auto Vox X2 - the rear image is usable and its size is just right.
  • I said it before, but it's really driven home once you're in traffic - you sit low! You can't see the driver in the car to your left. All you can see is their passenger side door.
  • I always thought cable shifters were sloppy. Not true with the Audi shifter mech and Graziano transaxle. I think having the gate and forcing the stick to move in the h-pattern leads to this feeling that everything is super precise. It doesn't feel like you're cable shifting. It feels very mechanical while at the same time being smooth - as opposed to the very mechanical but jittery feel of the T5 in my old mustang.
  • I didn't do any crazy turns or slaloms with the car, but again, it's amazing how FLAT the car turns. I don't think the car needs a stabilizer bar for anything but the most serious of driving.
  • The LS376/525 is an awesome engine. It doesn't feellike a big, heavy American V8. It revs seemingly effortlessly. It seems to be just as happy at 4500RPM as it does at 2200RPM - it has a max recommended speed of 6600RPM! My engine is running on the factory tune - no tweaks so far other than to run a Dakota Digital GPS unit to feed the VSS. Incidentally I didn't have any off-throttle engine fade/engine stalls, something the DD GPS is supposed to mitigate. It idles at about 950-1050RPM and bounces back and forth at a pretty rhythmic pace. I wouldn't call this a lopey cam. I had installed a Ford Racing cam in my mustang and THAT engine had a lopey idle! Bur-burp, bur-burp, bur-burp! I hated the idle after that cam was installed, it always seemed like the car was on the edge of stalling out. The LS376/525 ASA cam purrs like a Singer sewing machine in comparison. It's not rock solid steady, but the difference between its high and low points are close enough it doesn't sound lopey to me IMHO.
  • The factory V8 Graziano gearing feels short. Still up to debate whether I feel the drop gear change is required, but I think it would make daily driving just a touch easier.
  • No WOT excursions for me today or anything more than 50-70% WOT but this engine/trans combo makes the car move like it's superlight(see what I did there? ;)). I know my car's going to be a porker in comparison to most SLCs but the power to weight ratio of this particular car is much better than probably anything else I've ever driven. As one other builder put it - "I wouldn't want more power, but I wouldn't want less either".
  • The car doesn't feel frantic or nervous. As a package, the suspension doesn't feel like it's for an all-out race car. The interior doesn't feel like it's for an all-out race car. The ergonomics don't feel like it's an all-out race car. It doesn't feel like you're driving a race car - it just feels like you're driving a really neat sports car. Of course this is my opinion, based on the car I've built, but it's in line with my expectations.
  • I'm super happy with all the sound and heat materials I've put into the car. With the windows installed I think the cabin will be very reasonable. It was 85-90F today and I wasn't running AC - in fact, I was running the heater to help bleed my heater core in! Cabin temps were toasty insofar as ambient temps were warm, but that's it. I put my hand on several areas throughout the cabin and they remained cool to the touch even after heat soaking.
I snapped this pic at the Highway Patrol office.



If you're into self torture and want the long version of how my day went, click below!

52. What is it?
 
It is a bit intimidating the first few times driving a car like yours on the freeway. Looking over at truck wheel hubs right by your side window, wondering if the driver knows that you're down here...
 

Randy V

Member
Admin
Lifetime Supporter
It is a bit intimidating the first few times driving a car like yours on the freeway. Looking over at truck wheel hubs right by your side window, wondering if the driver knows that you're down here...
I was thinking the same thing when I was building my GT40.. Thought about putting offroad flags on it!
 

Howard Jones

Member
GT40s Supporter
I had a couple of comments from other drivers at the track. Something like " I saw you way back there and then you were gone. I was thinking you went into the pits. Then I saw the big ass wing and I knew you were there, right behind me! All could see was that big wing!

These were comments from guys driving Porsches and Camaros! Not big F250s or mini vans. Drive like you are on a sport bike, I.E. nobody knows you are there.
 
Another milestone (sort of) today! I lucked out and there was an available slot at a local BAR referee; in reading others' experiences it seemed like it took weeks to get on the books so I considered myself lucky to get in so soon after my CHP verification was completed.

The good news is I passed!!

The bad news is the printer that prints the emissions sticker was DOA. I've got to return to finalize everything and get my emissions sticker once the machine gets fixed. Hopefully that'll happen in the next day or two so I can sneak down to the DMV and get my registration completed by next week!!



I've still got a few more things to deck before I break out the plastidip but that's coming up very shortly.

I forgot to mention one other thing from my last driving impressions but it made me giggle today. The exhaust. The exhaust on this car sounds so damn awesome. There's a lot of snap, crackle, and popping going on back there. Downshifts are a joy. Throttle lift produces a nice throaty backfire. There's so much awesome noise back there - you really don't need a stereo in this thing.

Also loving the LS376/525. It has a super flat torque curve, not peaky at all. When laying on the throttle a little heavier today the car just kept going faster and faster. No "push" like you get in a turbo car where the acceleration builds as the turbos spool up. This thing just keeps going faster and faster. No drama. I still haven't gone WOT, hit redline, or exceeded the posted speed limits (by much) :D
 
Cam;

I was looking back through your build photos and saw your oil cooler mounting. Aren't you concerned about the cooler being damaged by stones & dirt being thrown off the rear tires at speed?
 
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