[Sniz]

This is from my e36 forum today but I thought it might help some e90/92/93 guys out as well.

The issue is my FMIC is doing a decent job (will be upgrading to a 4" core soon) BUT after the FMIC the charge piping is getting very heat soaked.

something to consider.

======================

ok boys, i wrapped all my charge piping with some rather cheap Thermo-tec adhesive heat wrap. I'll post some pics later.

Last week in mid 90's weather I was seeing IAT's in the 135-145f range. With a short burst of boost it would drop to 100-110f thanks to the meth.

Driving today in 90-96f ambient today with the a/c on full blast I didnt see temps over 105f while cruising, IAT's would plunge down to around 80-90f with a single gear pull thanks to the meth flowing. I stopped to pick up something at the store and when I turned the car back on temps had climbed to the mid 130's. Once I was back out on the road it went downto 110-120f. Prior to stopping the temps did not go over 105f so it seems that stopping and letting the engine bay heat soak is not ideal.

So, looks like roughly 15-25f reduction in IAT from wrapping the charge piping AND reducing my coolant temps from 200-220 down to 194f by replacing the fan clutch.

I'll post updates as I test it more.

Pictures from the work today. The large piece is my cold side charge pipe. the 2 small ones make up the intake pipe from the compressor housing to the filter. The piece that comes with the TT kit is made of steel of some sort and rests against the exhaust manifold, cant be good for IATs. I pulled the underpanel and splitter to do this and looked all around and did not see a way to run the intake pipe to behind the passenger foglight like I have been planning. I guess removing the a/c would allow that but that is 100% not happening.







This will show you just how close my charge pipe comes to the upper radiator hose. There is no doubt it was soaking up a bunch of heat here.

[uniter]

You replaced a faulty fan clutch at the same time? Any reason to suspect that your now better cooled engine is also running the turbos cooler?

Or were you measuring FMIC HOT to TB temps using two gauges?

Install looks clean

[Sniz]

Originally Posted by uniter

You replaced a faulty fan clutch at the same time? Any reason to suspect that your now better cooled engine is also running the turbos cooler?

Or were you measuring FMIC HOT to TB temps using two gauges?

Install looks clean

no the fan clutch was swapped last week. that also helped keep temps down.

[uniter]

Ahh ok. I'll definitely be doing this when I repipe my car.
I wish I had an easy to DIY for the plastic plumbing, I'd wrap that shit too.

[Jeff@TopGearSolutions]

Every little bit helps! Let me know if you ever sell that car as is, it's super clean.

[redefined]

This seems like a good idea. Maybe I should do this when I install mine. Do you have your dp wrapped as well?

[Sniz]

Originally Posted by Jeff@topgearsolutions

Every little bit helps! Let me know if you ever sell that car as is, it's super clean.

not a chance in hell, I think.

[Sniz]

Originally Posted by redefined

This seems like a good idea. Maybe I should do this when I install mine. Do you have your dp wrapped as well?

not yet, it will be done though. I wish I had wrapped my exhaust mani when I had it off awhile ago.

[redefined]

Maybe I should pick some header wrap and other wrap before I install mine. Much easier when out of the car I'd assume, haha!

[uniter]

Thanks to Sniz for the inspiration.
DEI Titanium wrap:

ETS Up pipe, STETT Charge Pipe and Raceland DPs

[brusk]

I've seen testing done on other forums and think the consensus wasn't noticeably different in the before and after temps. Due to the time that the air goes from the IC to the TB and the Intake temps vs under hood temps not being that far apart. I'd rather have a nice looking CP vs one that looks like crap and lowers the temps by 1 degree.

[#Tee]

Ive done this to previous cars and noticed nothing. Keep in mind rather keeping heat out youre also holding heat in. The placebo effect in full force here.

[uniter]

I'm very skeptical of seeing any gains from this exercise. That said, while I have the pipes out, why not wrap everything on the cold side, aside from the perceived detrimental aesthetic effects

[neilvosko]

+1
plus you are stressing the components with the wrap (heat + moisture) deteriorate the parts rather than evaporate.

[Sniz]

well way what you want, but keeping the heat from the radiator house off the charge pipe has made a measurable difference.

it all helps

[brusk]

I probably would have looked into a different hose or hard pipe or a slight relocation for that.

[Ilma]

Anyone think about heat wrapping the radiatior pipe

Might reduce the amount of heat being radiated from it.

Just a thought.

[brusk]

Originally Posted by Ilma

Anyone think about heat wrapping the radiatior pipe

Might reduce the amount of heat being radiated from it.

Just a thought.

You could be honestly the way BMW has the hood sealed so tight and not much airflow through there it's going to turn into an oven anyway. I would think the best way is a vented hood or lose some of the seals. When I was into older Toyota's the community did alot of under hood temp testing and found that just by removing the rear hood seal temps went down about 5 degrees then they got carried away and the trend of using washers to jack up the rear of the hood started which got a few more degrees. So until all that hot air has someplace to go wrapping things probably won't help.

[Sniz]

Originally Posted by brusk

You could be honestly the way BMW has the hood sealed so tight and not much airflow through there it's going to turn into an oven anyway. I would think the best way is a vented hood or lose some of the seals. When I was into older Toyota's the community did alot of under hood temp testing and found that just by removing the rear hood seal temps went down about 5 degrees then they got carried away and the trend of using washers to jack up the rear of the hood started which got a few more degrees. So until all that hot air has someplace to go wrapping things probably won't help.

Yup removing the rear seal on the hood makes a difference on ours too, helps to get that hot air OUT

[nitehawk]

Man your ride is clean. So much room in that engine bay compared to the 335i haha