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Greek Guys' Garage Roadster Build #9509 (Boig Cool Tube)
Continuing work on the cooling system, I finished the install of the lower Boig Cool Tube. I initially had some trouble figuring out how to get it aligned correctly. After trading some PM's and having a nice phone conversation with Bob Boig, he explained that he leaves the hoses long intentionally so they can be trimmed to get the best fit. Here's what the engine-side hose looked like at first. That wasn't going to work too well:
![](https://thefactoryfiveforum.com/attachment.php?attachmentid=152930&d=1630512180)
After some judicious trimming, here's how it ended up. I'm happy with the clearance to the steering shaft now:
![](https://thefactoryfiveforum.com/attachment.php?attachmentid=152925&d=1630512166)
![](https://thefactoryfiveforum.com/attachment.php?attachmentid=152924&d=1630512166)
The radiator-end hose was long on both ends and also needed some trimming to fit well. Here's how it looks now:
![](https://thefactoryfiveforum.com/attachment.php?attachmentid=152927&d=1630512166)
The middle of the tube ran pretty close to the x-brace, so I decided to take a short length of radiator hose and slip it in place and cover it with some of the abrasion guard sleeve that Ford puts on their hoses:
![](https://thefactoryfiveforum.com/attachment.php?attachmentid=152929&d=1630512180)
Here's what the whole assembly looked like after much fitting and trimming, before being installed for good:
![](https://thefactoryfiveforum.com/attachment.php?attachmentid=152928&d=1630512166)
The front bend of the metal tube still runs pretty close to the sway bar. I trimmed the rubber hose at the radiator outlet as much as I could to get the whole assembly to shift forward as much as possible, but there's not a lot of clearance there (maybe 1/16" to 1/8"). I don't think this will be an issue, but for good measure I put a section of abrasion guard sleeve over the metal tube in that area, and will keep an eye on it once I'm driving to make sure I won't have any problems down the road.
![](https://thefactoryfiveforum.com/attachment.php?attachmentid=152926&d=1630512166)
Many thanks to Bob Boig for taking the time to go over it all with me and make sure it all fits properly.
MkIV Roadster build: Gen 2 Coyote, IRS, TKO600. Ordered 10/24/18. Delivered 1/29/19. Engine installed 8/8/21. First start 9/12/21. First go-kart 9/17/21. Off to paint 4/11/22. Back from paint 12/30/22.
Build thread here.
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