[F430] DIY Header Install Question

I'm going to have to disagree on both parts but it's your car. I found the opposite. Ive taken temp of the engine bay before and after. Header blankets work.
But again its your choice.

 

OK....good luck.

 

It goes out of the tailpipes...seriously; blankets make a huge difference.

 

He has it all figured out. He just spent 12 hours over 3 weeks changing his headers.. He knows what he's doing. After reading his last response, I figured it's better not to argue the fact.
I took a lesson from Mark Twain and just said "ok ...good luck"

 

Remember, header temp and compartment temp are not the same thing and are only loosely related. The thermal resistance from the hot gas to the engine bay impacts the actual temp in the engine bay, not the surface temp of the header. That only shows it's relative position in the thermal gradient.

 

I think the thread is going off course but the blankets in my 360 and now F430 made a noticeable difference in engine bay temp (Not to say the ceramic coating won’t do the same or better). I’ve just seen too many of these coatings fail over time and the blankets seemed like a more permanent solution.

Glad to see the end result was a good one though OP. Enjoy in good health.


Sent from my iPhone using FerrariChat.com mobile app

 

This is really a pretty straight forward thermodynamics problem. There are resistance layers (different thermal conductivity) stacked up in a linear fashion with exhaust gas heat on one end and engine bay on the other. You can think of it like a pipe with a bunch of narrow spaces and wide spaces in it and think about the heat as water flowing through that pipe. The wide spots change the velocity of the water in that section but they don't change the amount of water that got there or cause more water to flow through the next restriction. Each coating, blanket, air, metal, etc. layer is a section of pipe with a specific diameter. The more thermal resistance (narrower the pipe section) the less water flows. Any of the solutions will slow the rate of heat transfer, none of them stop it. SO, the engine bay MAY get to the same temp with every solution but since it is dumping heat out other places that result is unlikely. Does that make sense?

Where does the extra heat go if not the engine bay? Heat that doesn't transfer across that series of junctions goes out the tail pipes.

 

Ok...good luck. You will eventually learn.

 

Have you considered insulating the hand brake cables and some of The other harnesses near the manifolds? They can melt and cause you problems.


Sent from my iPhone using Tapatalk

 

I like the ceramic coating and I think combined with this it would work well.

 

Spot on they do a great job. I am reading some weird ideas on this thread about blankets not helping etc- what tosh.
I worked on Steam Turbine ships for 15 years and every pipe had the hell insulated out of it , to prevent heat loss and keep the engine room at a reasonable temp.
Ceramic coatings only drop the surface temp by a small amount, you sure would not grab hold of the manifold expecting it to be cool enough to hold.

 

My experience is the same but there are always people out there that would rather doubt than listen to other people with experience.

I was in the Navy, been in the boiler room and you see thermal blankets on every steam pipe. Zero ceramic coating. Like you said, makes the room comfortable and safe to work inside.

There are times we just need to let people find out the hard way.

Sent from my SM-G955U using Tapatalk

 

If you worked on ships, you might be interested in looking up SS Stena Queen. I used to run the engine room on that one- 45 000 hp on a single shaft. 62 bar pressure @515C superheat.. 440 000dwt- 4th biggest ship ever made at the time

 

I looked up that ship. Wow! Huge! Thanks for sharing.

Dan

 

I might know something about insulation then ?
That ship has a draught of 92 feet when loaded, burned 260 tonnes of fuel a day, about 1500 kws of electrical load at 440 volts 3 phase. General Electric MST 14 steam turbine set- HP. and LP rotors @62 bar inlet pressure.