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> STANG KILLA SS goes "racin"
Steve91T
post Apr 25 2017, 02:26 PM
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I think anytime you let hot air out and bring fresh air in, you're doing good.

Clean install!
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mikedamageinc
post Apr 25 2017, 03:20 PM
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QUOTE (CrashTestDummy @ Apr 25 2017, 09:38 AM) *
I know other LS* engines actually have a plastic 'faux intake' looking cover on them, perhaps the C7 does too, so there is some protection there, but I'd think the heat would still be there. But if the extractor is pulling heat out, the engine compartment may just be a whole lot cooler to begin with.

This needs instrumentation!! (IMG:http://www.frrax.com/rrforum/style_emoticons/default/2thumbs.gif)



Yes!! We need someone to put heat sensors everywhere under the hood and do some extensive before after testing!

I've been reading about the LS engine covers and the general concensus is that they hold heat. Not sure if it is any significant amount but looking at the early LS vette style, they would hold the most heat over the fuel rails which would not be desirable.

This post has been edited by mikedamageinc: Apr 25 2017, 03:21 PM
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CrashTestDummy
post Apr 25 2017, 04:36 PM
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Well the fuel is cycled through there pretty quickly, and pre-warming the fuel before it hits the intake port might be a planned thing. As might the whole insulation capability of the cover. I think the cover also quiets a lot of injector noise that some may be concerned about.
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STANG KILLA SS
post May 9 2017, 11:37 PM
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well before buying it, i had heard alot that the C6 seats were crap, and after doing some track time in them they were right.
ive been eyeing some cheap race seats on ebay for a few months, i wanted fixed position fiberglass seats. but sadly when i was finally ready to buy the ones i wanted(NRG) were sold out everywhere.
but these "Invictus" seats poped up that hadnt shown up in any of my previous searches. the shoulder area was a little narrower than i would have preferred. these also came with the side mounts which i wanted. most of the side mounts i saw sold separately were in the $125+ range per seat
i liked what i saw and the dimensions fit so i offered them $175 per seat and they immediately accepted.
when they came in i was happy with the quality.
(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/Z06/SEAT%20RAILS%202_zpsz2gboooz.jpg)

i took some measurements and drew up a design in CAD for the mounting rails. i kept them low as possible as id read helmet/roof room was an issue.
(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/Z06/SEAT%20RAILS%201_zpsrpejarbi.jpg)

picked up some 2" X 1/8" steel and after two evenings had the rails made.
(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/Z06/SEAT%20RAILS%203_zpsidqm54x7.jpg)

kept the rails super low. the rail and bolt head actually touch the carpet. mounted with grade 8s.
(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/Z06/SEAT%20RAILS%204_zpskf6vcaf5.jpg)

painted
(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/Z06/SEAT%20RAILS%205_zps3uqr3nz5.jpg)

mounted
(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/Z06/SEAT%20RAILS%206_zps4qba6xr2.jpg)

i was out of time and money before the next track weekend, so didnt go to harness's yet. picked up these seatbelt extenders to use as buckles to bolt to the cars floor.
(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/Z06/SEAT%20RAILS%207_zpsutggtv9i.jpg)

unfortunatly when i tried to bend the hardened steel male buckle it snapped when i went past 35-40 degrees. so i welded them up at about 50-55 degrees to clear the seat rails. bolted them to the floor and worked perfect!
(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/Z06/SEAT%20RAILS%208_zpsz5wknwb0.jpg)

in! after these pics i unbolted the shoulder harness and ran it threw the upper harness hole. i didnt like not feeling the strap on my shoulder.
(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/Z06/SEAT%20RAILS%209_zpsmfvqul1b.jpg)

(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/Z06/SEAT%20RAILS%2010_zps17nfc6vx.jpg)

best news is i got no dash lights or chimes with the stock buckles and electrical connections no longer existing. i was worried about that. i do have an airbag light from the missing/unpluged seat airbags.
also i have a good 1-2" of helmet clearance with the roof.

Weights:
Stock driver seat with air bag, motor, and rails : 49lbs
stock passenger seat with airbag and rails : 39 lbs
Invictus seat with homemade rails : 22 lbs
total weight savings : 44 lbs
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Blainefab
post May 10 2017, 01:24 AM
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That flat bar will just bend if pushed on, weld some gussets all along the sides of the rails, from front to rear mounting studs.

Add washers on the oval holes.

Toss the welded buckles - high carbon steel is brittle - that's why it snapped when you bent it. The weld is brittle too, they will break in the HAZ.
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CrashTestDummy
post May 10 2017, 02:10 AM
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And route the belts THROUGH the belt slots. Where they are can be damaging to you in an accident.
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trackbird
post May 10 2017, 11:00 AM
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QUOTE (Blainefab @ May 9 2017, 09:24 PM) *
That flat bar will just bend if pushed on, weld some gussets all along the sides of the rails, from front to rear mounting studs.

Add washers on the oval holes.

Toss the welded buckles - high carbon steel is brittle - that's why it snapped when you bent it. The weld is brittle too, they will break in the HAZ.


Alan beat me to pretty much all of that.

Those seats are going to wobble around on those brackets. And the welded buckles are junk. I see a little porosity on one end and the edge isn't filled up. And the weld has that grey color you get when you weld high carbon steel (that tells me the weld is very brittle). Toss those, they will get you hurt. Put the stock seats in for the weekend and finish this part once you've refilled the fun money account and you have more time.
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79T/A
post May 13 2017, 10:12 PM
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I don't understand the cheap China seats in such an expensive, fast car. You're going to get yourself hurt doing stuff like that.
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STANG KILLA SS
post May 15 2017, 11:37 PM
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headed back to the track last weekend and got to try the latest round of mods. hood vent and seats.

hood vent:
the vent did work and helped a bit with cooling but not a huge difference. at when stopped you can defiantly see the heat pouring out of it. it took a tad longer to get to the uncomfortable water/oil temps. and allowed me to run at the top of that range a bit longer, but im guessing no more than a 5-10 degree difference in MAX temps before i did a cool down lap. conditions were identical at 85 ambient before and after. not sure if the cooling effects would be more pronounced on a 100* day. i do fell like it helped with the front end aero lift though. between the hood vent, and removing the air dam i really didnt feel the dancing i was getting before from the front end at top speed.

seats:
seats and mounts did great. super solid. the lower portion of the seat really held me in place very well. but as i suspected the narrower (than most race seats) shoulder width didnt hold my upper body as good as i would have liked in hard cornering. better than stock, but i still had to hang on pretty good, and my shoulders were sore as hell from it.

the place was more packed than id ever seen it. with lots of new cars. including this Superlite SL-C. must have been a new car shake down because he was off pace all weekend. i thought the nitto Envos were an odd choice for such a high end car. LS3 powered.

(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/20170506_081316_zps0rpylpgz.jpg)

(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/20170506_081426_zpsmzs1kwpc.jpg)

(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/20170506_081335_zpswbgrshc9.jpg)

(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/20170506_081440_zps7vg4sgja.jpg)

this guy also showed up. i think he was lost (IMG:http://www.frrax.com/rrforum/style_emoticons/default/biggrin.gif)
(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/20170506_090011_zpsga6cgfnx.jpg)

Lap times:
with my previous issues with the lap timer, i moved my phone to a suction mount in the windshield. this seemed to solve the issues, i was getting consistent lap times/gps signal.
Saturday it said i was running fastest of 1:57s, and by sunday my tires were gone, this was there 4th and final weekend. but it said sunday i was running bests of 1:58s. i was really have to tip toe exits sunday. felt like it would spin at any time applying power.
however when i came home to look threw all the gopro footage i was only seeing bests of 1:59s. i think it may be time for an external gps sensor.
however there was one lap showing a 4 second difference in the start/finish times on the gopro so i ran it threw my editing program and did frame by frame start and finish and it said i ran a 1:56!
(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/lap%20time_zpsca0ltjzk.jpg)
i couldnt believe it. thats 4 seconds faster than my best ever in the camaro.
i don't have it confirmed by gps timer, but at this point i have more faith in the footage than the timer. sadly the timer wasnt running during this session.

this is that lap.
https://www.youtube.com/watch?v=afKO9xDhMoE

and for the first time ever the vette lasted the entire weekend without breaking anything! super stoked about that. shes finally getting there. had a blast.

1 weekend of fun = 3 hours of rubber scrubbing....
(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/2017-05-07-16-25-30_zpskicpwr0t.jpg)
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CrashTestDummy
post May 16 2017, 12:31 PM
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A friend with a '15 1LE kept having troubles getting his external GPS sensor to get a signal when velcroed to the dash of the car. He finally broke down and built a suction-cup mount for the thing, and now mounts it on the roof of the car. He says he's had zero issues since with a GPS signal, and the blue-tooth sensor has had zero issues connecting to his tablet he runs Solo Storm on. He's even run the car at standing mile competitions, do no issues with the sensor disappearing in the wind.

Just a thought.
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STANG KILLA SS
post May 16 2017, 01:27 PM
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thanks, ill look into that.
there was another C6Z i met and he was running Harrys lap timer with external gps on dash. quite a bit forward.
i had also thought about suction cupping to the underside of the rear hatch glass in the middle.
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CrashTestDummy
post May 16 2017, 01:37 PM
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That might work, too. The defroster grill may be an issue, though.

Inside would definitely be better than external though. I do believe that the GPS sensors need 'line of sight' and not 'space for signal', so even inside the hatch, right on the back glass, could still be an issue.

This post has been edited by CrashTestDummy: May 16 2017, 01:40 PM
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STANG KILLA SS
post Jun 8 2017, 11:07 PM
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was doing some research on high end coolant, and found out water is the best coolant there is. (i was embarrassed i had no clue about this) so i flushed the radiator 3-4 times to get all the orange Dex-cool out. i also fell for the commercial for the "as seen on tv" hyper lube/coolant additive. it was only $7 so i figured why not.
(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/Z06/HYPER%20LUBE_zpsryolk8ep.jpg)

i also removed the baffle under the bumper on the Z to the radiator seen here
(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/Z06/BLOCK%20OFF%20PANEL_zpsmv3jlvhd.jpg)

wanted to add some bottom breathing like an Fbody, so i picked up some aluminum sheet and got to cutting and bending. sadly i could only find .025" sheet locally. wasnt sure if it was gonna help or hurt but i was gonna find out. u can just see the rad and oil cooler
(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/Z06/SCOOP_zps9qtlvxxy.jpg)

sadly as suspected the .025" sheet aluminum stood no chance against 150mph winds. just bent back.

the good news is the radiator flush/water did some good. i saw 10-30* cooler temps depending on time of day, and how hard i pushed. ambient temps were even 5* hotter.

Took everyones advice and ran the belts (lap and shoulder) threw the seat holes. while i had them out i took the buckles to a upholstery shop and had them sewed together so there was no chance of them slipping/sliding.
(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/Z06/BELTS_zpszehx4clp.jpg)

picked up a new set of tires, which meant cleaning out the rubber inside the rims
(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/Z06/wheel_zpsg2wbuice.jpg)

headed to the track last weekend.
Saturday after lunch the brakes and tires were cooled off, i pushed hard immediately and ran twin 1:56s on my first two outlaps!
(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/Z06/RACE%20CHRONO_zpsemjjkoep.jpg)

these are those laps. i also added an external microphone to the gopro right above the license plate.
on the second lap i ran a 1:56.3. i really think im capable of a 1:55.x on that lap i got in too deep into T10 and slide the front tires and had to wait to recover, and also had to delay getting on power for the front stretch to get around a lemons car.
https://www.youtube.com/watch?v=GmuiUUiC5CE

saturday night we got major storms there. couldnt get into the track until nearly 11am sunday. tunnel had almost 3' of water in it.
(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/Z06/flooded%20tunnel_zps3wyxbsak.jpg)

(IMG:http://i28.photobucket.com/albums/c230/STANGKILLASS/Z06/flood_zpsmzd7eoz7.jpg)

sunday afternoon i had a bird fly in front of me in turn 10. couldnt see if he came out or not once i passed. well on the next lap i saw his body laying there on track. really bummed me out and has been bothering me since.
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CrashTestDummy
post Jun 9 2017, 04:02 AM
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Yep. Back in about 1964, or so, my Dad and I were in his '41 Studebaker, heading back from Lompoc. I saw a bird fly up in front of us, and then >whack< as it looked like it hit the roof of the car right above the windshield. I was devastated. I still think about that bird. I can feel your pain.
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STANG KILLA SS
post Jun 13 2017, 11:55 PM
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also while i was there, was offered a ride in a Radical SR3!
(IMG:https://cdn.shopify.com/s/files/1/1038/5980/products/radical-sr3-rs-performance-used-pre-owned-racing.jpg)

about 1300 lbs and 200 hp. (hyabusa motor)
unfortunately i didnt hit the button on the gopro hard enough so it never recorded. i did get my helmet cam footage though.

he did mention he would have to get used to my weight, adding 200 lbs to a only 1300 lb car is a huge percentage so i believe him.
there was no warm up or cool down, he just went straight to business.

no words or video can describe this damn thing. every thing i know about cars and physics went right out the window. insanely capable was an understatement. it must make as much downforce as it weighs because there were no laws of physics, centrifical force, momentum, or gravity in that damn thing. he could be fully side loaded cornering so hard, and at any time slam on the brakes or swerve in tigher and it would just stick.
Corners where im slaming on the brakes, turning in, coasting to apex, and gently apply throttle on apex, he was doing foot to the floor and just steering!
I now know why he wears a carbon fiber helmet, head restraints, and a full containment sent. i litterally could not hold my head up it corners SO damn hard, i had to hold onto my helmet and head the entire run with my arm. by the last two laps my neck was hurting pretty damn bad, but i smiled right threw it.

as any good driver the first thing i noticed he used every last inch of the track everywhere no matter what the consequences were. at the end of the straight i run 150mph, with all that down force he was toping out at 120mph. but that didnt matter he did most of the infeild damn near flat out. on a perfect lap i run 1:56, on a perfect lap he runs 1:39s! 17 seconds faster despite the 30 mph handicap on the straight.

i just cant discribe it, i didnt know that was physically possible by a machine.

heres the vid. in the last two laps(9 minute mark) i could feel he was pushing harder, and you can see us come up on two C5s and see the grip/performance difference. just insane.
https://youtu.be/_jJQ7McK3Sk
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mitchntx
post Jun 15 2017, 02:08 PM
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QUOTE (STANG KILLA SS @ Jun 8 2017, 06:07 PM) *
saturday night we got major storms there. couldnt get into the track until nearly 11am sunday. tunnel had almost 3' of water in it.


Been there, done that ...

https://youtu.be/j2KbH9EqAVA

So we improvised a bit ....
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STANG KILLA SS
post Jun 16 2017, 01:56 AM
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haha nice!
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trackbird
post Jun 16 2017, 11:20 AM
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QUOTE (STANG KILLA SS @ Jun 8 2017, 07:07 PM) *
sunday afternoon i had a bird fly in front of me in turn 10. couldnt see if he came out or not once i passed. well on the next lap i saw his body laying there on track. really bummed me out and has been bothering me since.


I've had bad luck with birds.

When I was 16, I was learning to drive with Dad in his Datsun 510 (4 speed manual) and I hit one on the freeway at 65 mph. We heard it hit the ground after I hit it (no AC, had the windows down).

When I was 17-18, I had a 1987 Escort EXP. A bird hit the Ford emblem right at the front of the hood and went "straight up". I was doing 75-ish when I hit that one.

About age 23, I was in my '89 Formula Firebird. A bird swooped down behind a tractor trailer (I was in the other lane) and it hit my windshield in front of the passenger seat. It didn't break the windshield, though I hit it at about 80 or so.

Driving my 2002 Camaro on a back road one day, the birds were in the middle of the street eating something. As I got close, all of them took off except one. I kept waiting and thinking it would fly...it never did. As I looked in the mirror, there were just feathers all over.

One day doing an oil change on the 2006 Mazdaspeed 6 that I had, I found a dead bird in the lower scoop area up against the radiator (the car had a couple rectangle openings at the bottom of the radiator opening, a bird was ingested there). It was also dead.

I have no idea why I've hit so many birds. It's been quite a few years since the last one. Heck, I've only hit one deer and all of those birds. That seems really odd.
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79T/A
post Jun 16 2017, 03:58 PM
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Birds are no problem, ever see what happens when a deer runs out on track? Vaporized. A lot of our tracks on the east coast have deer run out, especially Summit Point.
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CrashTestDummy
post Jun 16 2017, 07:18 PM
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QUOTE (trackbird @ Jun 16 2017, 06:20 AM) *
QUOTE (STANG KILLA SS @ Jun 8 2017, 07:07 PM) *
sunday afternoon i had a bird fly in front of me in turn 10. couldnt see if he came out or not once i passed. well on the next lap i saw his body laying there on track. really bummed me out and has been bothering me since.


I've had bad luck with birds.

When I was 16, I was learning to drive with Dad in his Datsun 510 (4 speed manual) and I hit one on the freeway at 65 mph. We heard it hit the ground after I hit it (no AC, had the windows down).

When I was 17-18, I had a 1987 Escort EXP. A bird hit the Ford emblem right at the front of the hood and went "straight up". I was doing 75-ish when I hit that one.

About age 23, I was in my '89 Formula Firebird. A bird swooped down behind a tractor trailer (I was in the other lane) and it hit my windshield in front of the passenger seat. It didn't break the windshield, though I hit it at about 80 or so.

Driving my 2002 Camaro on a back road one day, the birds were in the middle of the street eating something. As I got close, all of them took off except one. I kept waiting and thinking it would fly...it never did. As I looked in the mirror, there were just feathers all over.

One day doing an oil change on the 2006 Mazdaspeed 6 that I had, I found a dead bird in the lower scoop area up against the radiator (the car had a couple rectangle openings at the bottom of the radiator opening, a bird was ingested there). It was also dead.

I have no idea why I've hit so many birds. It's been quite a few years since the last one. Heck, I've only hit one deer and all of those birds. That seems really odd.


My Dad hit a seagull in a C-47! He was in the left seat, and the co-pilot got up to to relieve himself, or get more coffee, or something. The bird came through the right windshield and went >POOF!< against the back of the co-pilot's seat. Good thing he had to leave the 'pit for a moment! (IMG:http://www.frrax.com/rrforum/style_emoticons/default/blink.gif)

So, yeah, my Dad has had bad luck with birds in moving vehicles, too. Luckily, that didn't rub off on me.

This post has been edited by CrashTestDummy: Jun 16 2017, 07:19 PM
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