Glowing Manifolds and Turbos
11-02-2007, 11:54 AM
#2
DEYTUKURJERBS
err, high exhaust temps, obviously 
its normal on a turbo car, esp a tuned one, you just never normally see, as you cant generally see under the bonnet while tanking down the road at 150mph
its normal on a turbo car, esp a tuned one, you just never normally see, as you cant generally see under the bonnet while tanking down the road at 150mph
11-02-2007, 11:58 AM
#5
DEYTUKURJERBS
Originally Posted by fudgeass
i was gonna say, obviously cos its fucking hot 
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11-02-2007, 12:20 PM
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My dads exhaust was glowing red while being mapped before the work.
it caused a whole in the manifold and pulled away from the head leaving a stud there
Very rare to see it on an n/a car.
it caused a whole in the manifold and pulled away from the head leaving a stud there
Very rare to see it on an n/a car.
11-02-2007, 12:49 PM
#13
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Originally Posted by vroooom ptssssh
Isnt it also something to do with ignition timing?
too much advance causes lots of heat?
too much advance causes lots of heat?
11-02-2007, 01:29 PM
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My mates 2WD on a T3 used to glow like fook, but we used to race Evo's up and down and industrial estate till 3 in the morning so what do you expect! 
11-02-2007, 01:31 PM
#20
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Originally Posted by Dan
Originally Posted by sidewayz
BatFink Am i right by thinking your 15? (off topic i know but i dont give a shit 
)
)
11-02-2007, 02:43 PM
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when i first got my first cossie, we had ciggies, but no lighter....
soooo
laced it on motorway, pulled over, jumped out, and lit cigs on turbo.....
remember dan????
soooo
laced it on motorway, pulled over, jumped out, and lit cigs on turbo.....
remember dan????
11-02-2007, 04:17 PM
#25
Boost Builder
when i first got my first cossie, we had ciggies, but no lighter....
soooo
laced it on motorway, pulled over, jumped out, and lit cigs on turbo.....
remember dan????
soooo
laced it on motorway, pulled over, jumped out, and lit cigs on turbo.....
remember dan????
11-02-2007, 04:43 PM
#26
Originally Posted by Danny@RADesigns
when i first got my first cossie, we had ciggies, but no lighter....
soooo
laced it on motorway, pulled over, jumped out, and lit cigs on turbo.....
remember dan????
soooo
laced it on motorway, pulled over, jumped out, and lit cigs on turbo.....
remember dan????
couldnt give it large either as the roads were very slippery. Altho i did try and lighta smoke from the manifold but failed miserably
11-02-2007, 05:37 PM
#28
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Got to give them the glow test every now and again!
Simple - thrash it like fook, pull over, quickly pull the bonnet, point and giggle at the orangyness!
The cossie does a pretty good job, can get the first 18" of downpipe to glow..
Mate Scotts S1 is better.
Havent tried the quality Rover 620ti yet as its almost certain to kill it, and I havent been that bored lately!
Simple - thrash it like fook, pull over, quickly pull the bonnet, point and giggle at the orangyness!
The cossie does a pretty good job, can get the first 18" of downpipe to glow..
Mate Scotts S1 is better.
Havent tried the quality Rover 620ti yet as its almost certain to kill it, and I havent been that bored lately!
13-02-2007, 11:50 AM
#31
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Originally Posted by Maxfield
My dads exhaust was glowing red while being mapped before the work.
it caused a whole in the manifold and pulled away from the head leaving a stud there
Very rare to see it on an n/a car.
it caused a whole in the manifold and pulled away from the head leaving a stud there
Very rare to see it on an n/a car.
13-02-2007, 11:54 AM
#32
Could have been an interesting debate this on what circumstances you actually see excessive temps, like when people go for too high a compression ratio and end up with too much retard, or when you end up with a glowing turbo whilst at part throttle low boost if it runs too lean.
He might be young, but im sure he was aware there was heat involved, wouldnt it be more useful to tell him WHY there is so much heat there?
(and no answers of, cause you just burnt petrol and things get hot when they burn )
He might be young, but im sure he was aware there was heat involved, wouldnt it be more useful to tell him WHY there is so much heat there?
(and no answers of, cause you just burnt petrol and things get hot when they burn
)
13-02-2007, 02:45 PM
#35
turbo glow
Originally Posted by Carlsworth
when i first got my first cossie, we had ciggies, but no lighter....
soooo
laced it on motorway, pulled over, jumped out, and lit cigs on turbo.....
remember dan????
soooo
laced it on motorway, pulled over, jumped out, and lit cigs on turbo.....
remember dan????
Sorry that is such a pikey thing to do
Luciano
13-02-2007, 03:10 PM
#37
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Originally Posted by Chip-3Door
Could have been an interesting debate this on what circumstances you actually see excessive temps, like when people go for too high a compression ratio and end up with too much retard, or when you end up with a glowing turbo whilst at part throttle low boost if it runs too lean.
He might be young, but im sure he was aware there was heat involved, wouldnt it be more useful to tell him WHY there is so much heat there?
(and no answers of, cause you just burnt petrol and things get hot when they burn )
He might be young, but im sure he was aware there was heat involved, wouldnt it be more useful to tell him WHY there is so much heat there?
(and no answers of, cause you just burnt petrol and things get hot when they burn
)
I was more asking why a turbo engine produces more heat in that area.
Plus what to do to cool it and what sorta heat you'd expect on modded cars.
13-02-2007, 03:17 PM
#38
DEYTUKURJERBS
Originally Posted by BatFink
Plus what to do to cool it and what sorta heat you'd expect on modded cars.
And turn the antilag off
700-900deg C is pretty normal on a tuned turbo car.
1200deg C with the ALS on for a while.
13-02-2007, 03:22 PM
#39
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Originally Posted by Stavros
Originally Posted by BatFink
Plus what to do to cool it and what sorta heat you'd expect on modded cars.
And turn the antilag off
700-900deg C is pretty normal on a tuned turbo car.
1200deg C with the ALS on for a while.
13-02-2007, 03:27 PM
#40
Originally Posted by BatFink
Originally Posted by Chip-3Door
Could have been an interesting debate this on what circumstances you actually see excessive temps, like when people go for too high a compression ratio and end up with too much retard, or when you end up with a glowing turbo whilst at part throttle low boost if it runs too lean.
He might be young, but im sure he was aware there was heat involved, wouldnt it be more useful to tell him WHY there is so much heat there?
(and no answers of, cause you just burnt petrol and things get hot when they burn )
He might be young, but im sure he was aware there was heat involved, wouldnt it be more useful to tell him WHY there is so much heat there?
(and no answers of, cause you just burnt petrol and things get hot when they burn
) I was more asking why a turbo engine produces more heat in that area.
Plus what to do to cool it and what sorta heat you'd expect on modded cars.
The reason that you get this more with a turbo car, is there is a bigger mass of exhaust gas present in the exhaust manifold at any point in time than in a N/A car with an identical diameter of pipework, so essentially more exhaust gas hangs around at once, and hence gives up more heat
Ie, its not always the case that the gas itself is actually hotter, merely that 800 degrees in both cases would result in a greater rise in temp in the turbo manifold, due to the restriction of the turbo leading to a lot more exhaust gas present in there at once (if you put a map sensor in both manifolds, you would see a far greater pressure in the turbo one)