Extractors Glowing Red

TieNN89 · Postby **TieNN89** » Thu Jan 01, 2009 10:08 pm

Should I be worried?

I went up Mt Cootha (for those that know) thru the back where Channel 10 ABC is not the lookout way

Anyway I went up Mt Cootha in 3rd gear doing erh cough speed limit around the 4000-5000rpm if i recall correctly

stopped infront of ABC had a look under my bonnet and i noticed a bit of the extractor was glowing red

not the whole extractor but where the extractors go from 4 to 2

Should I be Worried?

My factory water temp gauge was sitting where i usually sits

TieNN89 · Postby **TieNN89** » Thu Jan 01, 2009 10:22 pm

Heres the bits where I saw it go red tonight not much went red tho

greenMachine · Postby **greenMachine** » Thu Jan 01, 2009 10:57 pm

Just keep that aircon line away from it.

Ask me how I know :oops:

, or, better still, don't... :lol:

TieNN89 · Postby **TieNN89** » Thu Jan 01, 2009 11:04 pm

greenMachine wrote:Just keep that aircon line away from it.

Ask me how I know , or, better still, don't...

mmm not asking how you know but what was the results

any tips on how to keep the aircon line away?

RG.net · Postby **RG.net** » Fri Jan 02, 2009 12:00 am

AZNTieN wrote:
greenMachine wrote:Just keep that aircon line away from it.

Ask me how I know , or, better still, don't...

mmm not asking how you know but what was the results

any tips on how to keep the aircon line away?

take it out

NMX516 · Postby **NMX516** » Fri Jan 02, 2009 12:49 am

AZNTieN wrote:Anyway I went up Mt Cootha in 3rd gear doing erh cough speed limit around the 4000-5000rpm if i recall correctly

4-5000rpm in 3rd equates to 50km/hr??!! :shock:

You must have one very low diff ratio there!! :lol:

TieNN89 · Postby **TieNN89** » Fri Jan 02, 2009 1:05 am

wait it might even be second lol

adamjp · Postby **adamjp** » Fri Jan 02, 2009 3:36 pm

No problem.....glowing red is normal when you work the engine hard at, er, cough, legal speeds, cough.

There is a classic advert from the very early seventies of the E49 Hemi six pack (245cubes with 3 x 45mm Webers) on the dyno in italy as they tuned the webers and the extractors were bright red. They only made 140 E49s, try finding one now.

Hellmun · Postby **Hellmun** » Fri Jan 02, 2009 5:48 pm

See I'd expect it on a turbo car or on a dyno when there's no airflow at all. However going up a hill on just 4000-5000rpm. I've ran the car for 20 minutes at a time on the track and not seen any glow. That's never going below 4500rpm the whole time either. Usually the glowing infers a turbulent spot I thought.....

TieNN89 · Postby **TieNN89** » Fri Jan 02, 2009 7:05 pm

i'll make sure i bring my camera next time and take a snap while its glowing red

ben wilson · Postby **ben wilson** » Fri Jan 02, 2009 8:51 pm

Hellmun wrote:See I'd expect it on a turbo car or on a dyno when there's no airflow at all. However going up a hill on just 4000-5000rpm. I've ran the car for 20 minutes at a time on the track and not seen any glow. That's never going below 4500rpm the whole time either. Usually the glowing infers a turbulent spot I thought.....

At a track you tend to be doing higher speeds for the revs than on a mountain. High revs + low airspeed = hot. Probably nothing to worry about.

Fuzzlet · Postby **Fuzzlet** » Fri Jan 02, 2009 8:57 pm

I was able to get the dump pipe and rear housing to glow on my NA (Running an SP manifold + turbo)

madboy · Postby **madboy** » Sat Jan 03, 2009 12:51 am

headers are wrapped, if the heat can't dissipate then its going to get allot hotter, unless they are stainless i wouldn't be to worried

TieNN89 · Postby **TieNN89** » Sat Jan 03, 2009 1:49 am

yep there wrapped with DEI branded stuff

there mild steel

when i got my exhaust done the exhaust shop said he doesn't recommend stainless on extractors because they crack due to heat etc etc

so i went the mild steel and stainless the rest

i shoulda HPCed it :[

anyone know how much it cost

i just don't like the down time :[