mack mhe9 Posted April 15, 2010 Share Posted April 15, 2010 getting ready to redo my exhuast manifolds on a e9. going to biger turbo and more fuel. has anyone extrude honed and jethot coated them. is there any gain in hp or cooler exhaust temp. this truck is used everyday its not a pull truck so im looking for durability. thanks Quote Link to comment https://www.bigmacktrucks.com/topic/13444-e9-exhaust/ Share on other sites More sharing options...
ducky698 Posted April 15, 2010 Share Posted April 15, 2010 getting ready to redo my exhuast manifolds on a e9. going to biger turbo and more fuel. has anyone extrude honed and jethot coated them. is there any gain in hp or cooler exhaust temp. this truck is used everyday its not a pull truck so im looking for durability. thanksHello, i have used a similar coating to this on some extractors I made for the Tumbler Bat car I built, I found the coating to work well and keep them cooler, also use the redline water wetter in cooling system to pull the temp down as much as possible.Grant Quote Link to comment https://www.bigmacktrucks.com/topic/13444-e9-exhaust/#findComment-53126 Share on other sites More sharing options...
mack mhe9 Posted April 18, 2010 Author Share Posted April 18, 2010 Hello, i have used a similar coating to this on some extractors I made for the Tumbler Bat car I built, I found the coating to work well and keep them cooler, also use the redline water wetter in cooling system to pull the temp down as much as possible.Grantthanks. Quote Link to comment https://www.bigmacktrucks.com/topic/13444-e9-exhaust/#findComment-53361 Share on other sites More sharing options...
bubbamobilin Posted May 8, 2010 Share Posted May 8, 2010 thanks.I have a friend that ceramic coated his exhaust manifolds all the way to the turbo. He noticed cooler pyro temps but no noticable increase in boost or horsepower. If anything it is good insurance to do this to help things run cooler. Quote Link to comment https://www.bigmacktrucks.com/topic/13444-e9-exhaust/#findComment-54668 Share on other sites More sharing options...
vision386 Posted May 8, 2010 Share Posted May 8, 2010 getting ready to redo my exhuast manifolds on a e9. going to biger turbo and more fuel. has anyone extrude honed and jethot coated them. is there any gain in hp or cooler exhaust temp. this truck is used everyday its not a pull truck so im looking for durability. thanksI have an E-7 460 in a 01' CX-613, and have had my exaust manifold jet-hot coated since 2006, i initially did it for looks truthfully, but as another poster noted, i did see a noticeable drop in pyrometer temp. but no noticeable increase in horsepower/pulling power. mark Quote Mack Truck literate. Computer illiterate. Link to comment https://www.bigmacktrucks.com/topic/13444-e9-exhaust/#findComment-54669 Share on other sites More sharing options...
mack mhe9 Posted May 8, 2010 Author Share Posted May 8, 2010 thanks for the info. and nice rides. Quote Link to comment https://www.bigmacktrucks.com/topic/13444-e9-exhaust/#findComment-54685 Share on other sites More sharing options...
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