FP Manifold Heatsheilds

[prove_it]

Heat sheild for Fp race manifold

Read about these a while back. Guy on tuners designed it and now JNZ is stocking em. Looks great, spendy but very nice design.

 

[jnava]

Now that's definitely sweet. Underhood temps is our car's natural enemy. I think shelling this out for this piece is worth it. The manifold Curtis sold me had a DEI wrap. Amber, went and informed me that the likelihood of having a wrapped manifold would lead to an increase chance of cracking the manifold. She is the expert and I obliged. I think this is perfect for those rocking an FP mani.

 

[Street Surgeon]

Definitely a slick design, I have one of the old discontinued JMFab SS units but might trade up for that!

 

[JNR]

Good to see some options although im going to ceramic coat mine as id hate to cover it up since its a beautiful manifold for cast.

This cover looks nice just not $150 nice...hopefully it works decent but if all it's doing is mounting over it I doubt itll be super functional...iirc one of the runners sits higher than the rest so better yet would be to put something like silica in between...believe it or not with my evo iii i put some alum foil between the man and the oem heatshield and it helped. now that i have an ir thermo id like to compare it with numbers tho.

Its good to keep some of the radiant heat from getting into the engine bay and all but better yet would be to insulate the runners so you better reduce it from escaping (eng bay) but better yet keep the heat energy inside to spin the turbine more efficiently...

Anyhow like i said its good to see an option for folks who want to run this but too bad its not realistically priced...forgot who made the older ss unit but i picked one up but then sold it as it wasnt that nice enough and not as functional as my oem (for the 3) plus iirc was not designed properly for people running larger ic tubing coming out of the compressor...hopefully this one is

 

[GSX_TC]

Haha cool! Took long enough /ubbthreads/images/graemlins/grin.gif

 

[theevozero]

Amber is no expert. I would be more inclined to ask anyone else at FP. My money is on Runt, Scotty, Robert or Brian.

 

[G]

I like the chimney idea better than this which just pushes the heat to other parts of the engine bay.

 

[Barnes]

Regardless of where any generated hot air goes, this shield should significantly reduce heat transfer into the engine bay via radiative heat transfer. This in turn reduces the total heat transferred into the engine bay.

 

[jnava]

Lmao....your crazy Kyle.



Quoting theevozero:
Amber is no expert. I would be more inclined to ask anyone else at FP. My money is on Runt, Scotty, Robert or Brian.

 

[G]

I think a good coating would do a better job than this unit.

 

[ade]

click

 

[MellowVR4]

Im gonna purchase ^ seems like its good quality

 

[turbowop]

I wonder if both could be used at the same time. Because that sheetmetal shield looks pretty nice...

 

[MellowVR4]

I was thinking the same thing.

 

[ade]

ill be trying the blanket and sock. if i saw this before i put together my ic piping, i would so get the hard piece. will this car ever detach from my wallet?

 

[G]

Oh man, how about coating > sock > shield ! Mind blowing.

 

[se7enine]

Don't forget a hood vent /ubbthreads/images/graemlins/ooo.gif

 

[Barnes]

</font><blockquote><font class="small">Quoting G:</font><hr />
I think a good coating would do a better job than this unit.

<hr /></blockquote><font class="post">

I was actually really surprised that after running the numbers, ceramic coating reduces radiative heat transfer about the same, or slightly more than the heat shield in question. I did a simplified check, but it should be about right. One coating company said surface temperature reduction is typically 33%. Since radiative heat transfer rate is based on temperatures raised to the 4th power, I realized cooler surface temps could have a BIG impact on total radiative heat transfer.

Right off the bat you can credit the heat shield with reducing radiative heat transfer by 50%. In reality it is probably more.

Running the numbers with a ceramic coating that provides 30% reduction in surface temperature results in a radiative heat transfer reduction of ~50%. Given an uncoated manifold is 500°F, the coated manifold would transfer half as much heat radiatively. At an uncoated manifold temperature of 1500°F, the transfer rate is reduced by 65%!

So moral of the story is that ceramic coatings are badass. Given things are equal, I think coating would be the clear choice.

The heat shield still probably has certain advantages such as cost, downtime, and keeping air flow off the manifold. But like anything there are pros and cons.

I think after running the numbers the sweet spot is ceramic coating + SS heat shield. <img src="/ubbthreads/images/graemlins/grin.gif" alt="" />

 

[turbowop]

My problem with coatings is that a lot of people have issues with them eventually wearing or flaking off. Even high-end coatings like those from Swaintech. I'd rather go with something like the blanket and shield.

 

[cheekychimp]

I wonder if that shield would clear a DNP tubular header as well?