NashGTI said:Pull rod mechanism mocked up for the front
Missed this update before, but I'm loving the sheer fabrication porn.
Any concerns about overheating the shock? That's a big source of heat right beside it, and it'll probably have some work to do keeping this thing upright.
Keith Tanner said:Any concerns about overheating the shock? That's a big source of heat right beside it, and it'll probably have some work to do keeping this thing upright.
In a word, yes. Honestly heat management through the entire vehicle is a concern. The idea has to be to heat shield the shock bodies and then heat coat the exhaust. The radiator outlet will be ducted up through the hood with separate openings to try and direct airflow through the center spine of the car to try and direct heat from the exhaust through that spine section and out the rear center. The trans cooler is in the rear and the hope there is to take the high pressure air from the rear wheel wells and direct it through the cooler then joining that flow coming down the spine and into the lower pressure area behind the car.
I'll bet it is a concern! What's your preferred exhaust heat coating? I could do better on my own car.
Keith Tanner said:I'll bet it is a concern! What's your preferred exhaust heat coating? I could do better on my own car.
OK, asked the guy who did the exhaust about heat coating. He also used to build and race rock bouncers so drew experience there. His answer was he had nitro plating on his rock bouncers back in the day and liked it but it's hard to find someone to do that now. The best thing he's heard about that is readily available is called Zybar.
My personal preference is to double stuff up, whether it be Cerakote or Zybar, follow that with some of the lava wrap. End of the day though all those things are trying to slow down heat transfer from the pipe. So the engine itself is still creating heat and if you don't have airflow through the engine bay it's still going to end up with massive under good temperatures.
In reply to NashGTI :
Angry had something with the Corvair that might help here. Duct around the exhaust and then additional fans for cooling
In reply to Mr_Asa :
What the engineer in me would like to see is an outflow fan or fans at the back in the vehicle in the center tunnel to draw cooling air through it around the transmission, driveshaft, rear end, and exhaust. The designer side though wants the diff and center mounted coil overs to be visible through that same opening. In the end we will likely modify the front bumper and chin spoiler to try and scoop air into that center area to move the heat away from the important parts.
NashGTI said:Keith Tanner said:I'll bet it is a concern! What's your preferred exhaust heat coating? I could do better on my own car.
OK, asked the guy who did the exhaust about heat coating. He also used to build and race rock bouncers so drew experience there. His answer was he had nitro plating on his rock bouncers back in the day and liked it but it's hard to find someone to do that now. The best thing he's heard about that is readily available is called Zybar.
My personal preference is to double stuff up, whether it be Cerakote or Zybar, follow that with some of the lava wrap. End of the day though all those things are trying to slow down heat transfer from the pipe. So the engine itself is still creating heat and if you don't have airflow through the engine bay it's still going to end up with massive under good temperatures.
We tried Zybar on a turbine outlet casting on a turbo Miata. It unfortunately did not perform in our application. I think the problem is what you said, it might have slowed down the transfer but it ultimately didn't decrease it. We ended up with blankets and some heat shields. Airflow through our problem area is not good.
Best thing I've done for heat protection is DEI Floor and Tunnel applied to the inside of my transmission tunnel. We did build a temporary heat shield on that turbo Miata made out of the stuff and it worked very well and looked incredibly janky :)
Tahoe off the frame table
Still sitting on plastic uprights for now, aluminum we've been promised tomorrow lunchtime. So get all that on and do a quicky alignment tomorrow afternoon, the load up Wednesday morning for the show this weekend
Got enough of the aluminum to make a roller.
Tight
Day one down, the Tahoe was kind of a big deal there today
It's been a while, we've been busy with other vehicles, but there has been some wiring and plumbing done on the Tahoe.
This thing is wild. Nice work!
This will only be two seats right?
In reply to SpeedAddict502 :
Gonna have two low back RaceTech seats in the back, just haven't got there yet.
Work of art!!
NashGTI said:In reply to Mr_Asa :
What the engineer in me would like to see is an outflow fan or fans at the back in the vehicle in the center tunnel to draw cooling air through it around the transmission, driveshaft, rear end, and exhaust. The designer side though wants the diff and center mounted coil overs to be visible through that same opening. In the end we will likely modify the front bumper and chin spoiler to try and scoop air into that center area to move the heat away from the important parts.
Is it allowable to skin certain sections of the tunnel with lexan?
also
Mr_Asa said:
In reply to NashGTI :Angry had something with the Corvair that might help here. Duct around the exhaust and then additional fans for cooling
That concept came from Stafford1500's racing experience, and I executed it to the best of my rudimentary ability. Please have several drinks before you look at anything I built. 🤘🏻😳
4 seater, even better!
In reply to NashGTI :
As far as heat management, if money is no object I've heard this is who you want to send it to, but you have to send in your header and whatever else you want coated.
https://headershield.com/
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