[PRAY]

Originally Posted by ULTRAZLS1

Make sure you add these details to my IM and TB in the future

whats wrong with your converter? I thought you only had a rear end problem?

are they covering under warranty even with mods? my dealership did with my truck...

I will see what I can do with your stuff.

The converter has the same shaking deal that most people are experiencing. I am actually starting to wonder if it is even locking up. My motor seems to tq well but doesn't hp well.

Since Tim and I have now had our cars on the same dyno's on the same days twice and the testing I have done on other cars on those dyno's I am convinced I am down about 15-20rw with what ever is going on with my stuff over stock or evenly modified cars. I really don't think it is in the motor. It is in the drive train some where. I have to find some time to run a compression and leak down tests. I think it is in the rear but could possibly be in the converter now as well. Maybe a combo of both.

I am going to pull into the dealership and take the tech and service writer for a ride so there is no argument with what is going on. Then I am going to try to have them order what I need. I will then drop the car off when the stuff comes in for work. At no point do I want to leave any testing or decision making in their hands. My dealership doesn't seem to know much about anything. My old service writer quit and went to another dealership cause he didn't trust the tech's to work on the cars. But of course the number I have for him is through the dealership and they won't tell me where he went.

[JFM-jr]

Oh boy cant wait for some results

[Blk16SS]

Originally Posted by EFI Tuning

Functionally not that I'm aware of. The coating back in the LS1 days looked great new but didn't seem to hold up particularly well. I don't know if they have improved much or not. I debated this heavily when I was doing them on the C7 and decided it just wasn't worth it for me.

Tim

I aside from better looks and cooler underhood temps, coated headers do offer a performance mod in the most extreme circumstances we know of. Most if not all Top Fuel race teams utilize coatings of different temperatures as one of their many tuning aspects. Depending on the track elevation, ambient temp etc, one weekend you might see John Force's cars' sporting headers with a JetHot coated shiny look, and the next weekend you might see them in what might appear as plain black headers with no coating at all. Those black headers are coated in Cerakote 7600. I'm not at all 100% sure on the temp theory but from what I've gathered thus far is the higher the elevation, the lower the coating temp ,7600 degrees being the most extreme. Each header pipe has it's own individual pyro for data logging.This I know we all know. It's a very important part of what it takes to get those cars down the track. Inside the header the gas is still burning (expanding). The idea is to keep the gas inside the header for expansion. The more expansion, more pressure is being released towards the merge collector thus "theoretically" producing more hp. As for the ceramic part, think about that non stick ceramic pot and pan set you got on Black Friday. Ceramic is slippery and it holds heat far longer after the heat is removed from it than cast iron or stainless steel. So one could apply this to headers. As exhaust gases cool, it also slows down. So a ceramic coating acts as a temp barrier and keeps the temp much hotter, longer, inside the tube. How does this translate on the dyno? Well you're only what about 5-7 seconds per pull? So no real heat is developing for a long period of time to really show gains if any. They do glow red but its not even an 1/8 mile pass. Will it translate into ET on the track? All else being equal, I would put money on it....

[oldman]

Originally Posted by Blk16SS

I aside from better looks and cooler underhood temps, coated headers do offer a performance mod in the most extreme circumstances we know of. Most if not all Top Fuel race teams utilize coatings of different temperatures as one of their many tuning aspects. Depending on the track elevation, ambient temp etc, one weekend you might see John Force's cars' sporting headers with a JetHot coated shiny look, and the next weekend you might see them in what might appear as plain black headers with no coating at all. Those black headers are coated in Cerakote 7600. I'm not at all 100% sure on the temp theory but from what I've gathered thus far is the higher the elevation, the lower the coating temp ,7600 degrees being the most extreme. Each header pipe has it's own individual pyro for data logging.This I know we all know. It's a very important part of what it takes to get those cars down the track. Inside the header the gas is still burning (expanding). The idea is to keep the gas inside the header for expansion. The more expansion, more pressure is being released towards the merge collector thus "theoretically" producing more hp. As for the ceramic part, think about that non stick ceramic pot and pan set you got on Black Friday. Ceramic is slippery and it holds heat far longer after the heat is removed from it than cast iron or stainless steel. So one could apply this to headers. As exhaust gases cool, it also slows down. So a ceramic coating acts as a temp barrier and keeps the temp much hotter, longer, inside the tube. How does this translate on the dyno? Well you're only what about 5-7 seconds per pull? So no real heat is developing for a long period of time to really show gains if any. They do glow red but its not even an 1/8 mile pass. Will it translate into ET on the track? All else being equal, I would put money on it....

I have not got into the coating debate, I personally choose to disbelieve and am willing to risk a saving throw damage vs intellect roll on a D10.

I had a VW 16 valve come to a shop for tune dyno and forget what else, he said the car was slow from new. While checking around, and yes his car seemed slow or lazy to rev, I found that VW did not put one cam bucket in on his intake, basically he had one tiny intake valve on one cylinder...

[ModdedSS]

Curious to see the results of this, just picked up the rotofab and next on the list is y'alls ported intake manifold/throttle body combo then kooks longtubes with offroad connections then E85 tune. So definitely looking forward to seeing gains with the longtubes and offroad connection pipes

[ULTRAZLS1]

Originally Posted by ModdedSS

Curious to see the results of this, just picked up the rotofab and next on the list is y'alls ported intake manifold/throttle body combo then kooks longtubes with offroad connections then E85 tune. So definitely looking forward to seeing gains with the longtubes and offroad connection pipes

Exact setup I'll be running in the spring.

Should go at least bottom 11s

[JFM-jr]

I had Jethot coating on 2 different headers on my 4th gen and both peeled and looked like crap. Sent them to Swaintech and that stuff is like iron. Up until I sold them they looked as good as the day I got them back after coating. It was the white lightning coating I had a buddy have the hot side of his turbocharger done in this with identical results good stuff.

[oldman]

Swain on my last turbo setup.