When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I am trying to conclude if the coolant pipe design / adhesive is common between road GT3’s and Cups. There is a ton of info on GT3’s but very little specific info on Cup cars likely due to lesser build quantities. I am specifically interested in the 2nd Gen 3.8 which I have read may differ from the 1st gen as the adhesive was improved. The only info I found is attached which is from 2018.
My questions
1. Is the coolant line design common between 7.2 GT3 and 7.2 GT3 Cup
2. Is it recommended to have Cup coolant line modified, weld or pin
3. Do HPDE or race org require the modification
Well at over a hundred views and zero responses I will assume that I am over thinking this one.... not an issue on 7.2 Cups... unless someone says otherwise
My 997.1 cup had a failure in the epoxy after a motorsport rebuild. Caught before catastrophic failure. I had the motor pulled and welded in sharkwerks couplers.
Very few cups has suffered this fate. I would more attribute this to the lack of heat cycles for the adhesive. While a street car may see 500 heat cycles of the engine in a year it would take more like 5 to 10 years for a race car to see that many heat cycles.
Thanks
Ed
__________________ https://demonspeed.com/
Engineered Race and Track Products for your Porsche
I am trying to conclude if the coolant pipe design / adhesive is common between road GT3’s and Cups. There is a ton of info on GT3’s but very little specific info on Cup cars likely due to lesser build quantities. I am specifically interested in the 2nd Gen 3.8 which I have read may differ from the 1st gen as the adhesive was improved. The only info I found is attached which is from 2018.
My questions
1. Is the coolant line design common between 7.2 GT3 and 7.2 GT3 Cup
2. Is it recommended to have Cup coolant line modified, weld or pin
3. Do HPDE or race org require the modification
🙏
I personally would find the use of any adhesive suspect. My preference is welding. I can’t imagine why this wasn’t done in the first place.
I have been researching pinning the lines as I plan to do it myself. I stumbled on a comment by Sharkwerks that the cup cars are different and have a threaded connection (see first paragraph in the screenshot)
I have been researching pinning the lines as I plan to do it myself. I stumbled on a comment by Sharkwerks that the cup cars are different and have a threaded connection (see first paragraph in the screenshot)
My 2006 cup definitely did not have a threaded connection. I saw it disassembled before the pipes were welded and was just like my 2008 street GT3 coolant pipes.
My 2006 cup definitely did not have a threaded connection. I saw it disassembled before the pipes were welded and was just like my 2008 street GT3 coolant pipes.
Maybe I read the sentence out of context but if so the Sharkwerks blurb is a little misleading. The car arrives in 3 weeks and I am guessing based on your response (as well as other web based comments on 7.2 cup adhesive) it’s going to have the same bonded in slip fit extruded pipes. At least I now know how to pin the lines. It looks time consuming but not overly complex.
10-15-2023, 02:41 PM
997 CUP coolant pipe failure
