--> OH MY GOD! (dribble dribble) TSL's Carbon fibre Bonnet <--
22 September 2003, 06:02 PM
#33
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Had my carbon bonnet on for about a week now and it looks better than standard (again a black car). Didnt buy it at TSL though - didnt know they were making them. doh.
Anyway, have to agree the that the scoop looks to big for the classic but i guess its different. Fair play for going different.
Ive got carbon bonnet, carbon scoop and carbon 22b vents. Looks good. I did put bonnet pins on mine. Wasnt sure at first but quite like them now.
Have you had over 100 in it? I reckon it will still flap so might be worth thinking about it.
A pen probably weighs more than mine. pmsl
Anyway, have to agree the that the scoop looks to big for the classic but i guess its different. Fair play for going different.
Ive got carbon bonnet, carbon scoop and carbon 22b vents. Looks good. I did put bonnet pins on mine. Wasnt sure at first but quite like them now.
Have you had over 100 in it? I reckon it will still flap so might be worth thinking about it.
A pen probably weighs more than mine. pmsl
22 September 2003, 07:08 PM
#36
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Alot of criticism going on on this thread. Carbon is very difficult to work with and that is an EXCELENT moulding. Cant realy see how you can fault it.
If you dont like the shape of the scoop then fair enough, I do.
Nice one Dan.
(btw, I have nothing to do with the bonnets or TSL)
If you dont like the shape of the scoop then fair enough, I do.
Nice one Dan.
(btw, I have nothing to do with the bonnets or TSL)
22 September 2003, 07:27 PM
#37
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Carbon may have benefits but unless it is colour coded I don't like it. Looks a bit like you have had a front end and have yet to respray the second hand bonnet.
Just my thoughts though.
Just my thoughts though.
22 September 2003, 10:15 PM
#41
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can try and organise a group buy on the company i got my bonet from if there is significant interest..... will look into it if u like. I got mine cheap though coz my m8 works for fedex so shipping was nigh on free
22 September 2003, 10:23 PM
#43
I think the carbon bonnet look is hideous. But each to their own. 
As to the comments on scoop eficiency, my charge temps dont go over 40 degrees C when driving flat out at 150MPH at the nurburgring with a standard STi5 scoop/intercooler and 25 degrees ambiant, thats no diferent from when its driven hard at a UK circuit at 120MPH, so i would say its still being cooled. Heat soak alone from sitting in traffic jams takes it over 70 degrees charge temp.
As to the comments on scoop eficiency, my charge temps dont go over 40 degrees C when driving flat out at 150MPH at the nurburgring with a standard STi5 scoop/intercooler and 25 degrees ambiant, thats no diferent from when its driven hard at a UK circuit at 120MPH, so i would say its still being cooled. Heat soak alone from sitting in traffic jams takes it over 70 degrees charge temp.
23 September 2003, 12:23 AM
#44
I remember buying a slightly damaged alloy bonnet about a year ago from a breakers for £25 
Shame it was the wrong year for my car, had i known the value i would have repaired and sold it 
IMO Unpainted carbon bonnets look the dogz
Id have one 2moro if i had the spare cash!
Shame it was the wrong year for my car, had i known the value i would have repaired and sold it IMO Unpainted carbon bonnets look the dogz
Id have one 2moro if i had the spare cash!
23 September 2003, 12:55 AM
#45
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Dan, I think your next useful mod will be a packet of toothpicks to straighten out the fins on your intercooler!!! Can't be good for your air flow with half of them flat 
23 September 2003, 10:23 AM
#46
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BTW.. also have 01-02 carbon bonnets IN STOCK.. well two anyway
these are the same quality (ie bloody thick!!) but come with an OE WRX scoop in carbon instead.
I have a pic but sadly am baffled by these new fangled photo hosties
.. will mail to someone clever though if you so wish Cheers
Paul
TSL
23 September 2003, 10:52 AM
#48
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Hanslow: Yep, I've done that too many times before. It is VERY boring The fins aren't flat, they are just not at precisely the same angle as the other one. A low flying sparrow was sucked up by the scoop on the way back down the A1....
The fins aren't flat, they are just not at precisely the same angle as the other one. A low flying sparrow was sucked up by the scoop on the way back down the A1....
23 September 2003, 01:34 PM
#49
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MONEY: Sorry missed the wobble @ 100 question. The CF bonnet wobbles less than the Ali one did. But I notice the wobble more on the cf one. I think its because of the way if reflects the light, and because after fitting it I was always watching and waiting for something nasty to happen.
John F: Interesting what you say about the temperatures. Is there a thread where you discuss this further?
Where were the temp sensors placed?
Would not be better to measure AIR FLOW rather than temp? Granted, the lower the temperature of the air the better, but the MORE air you get to go through the cooler also has a benifit. In my limited physics knowledge I would bet that more air = more air to convect away heat. The temperature in the scoop may be low, but the airflow may actually be going the wrong way if a lower pressure is created at the mouth of the scoop, which would happen if the airflow passes over the top....
I hope that makes some form of twisted sense to someone
John F: Interesting what you say about the temperatures. Is there a thread where you discuss this further?
Where were the temp sensors placed?
Would not be better to measure AIR FLOW rather than temp? Granted, the lower the temperature of the air the better, but the MORE air you get to go through the cooler also has a benifit. In my limited physics knowledge I would bet that more air = more air to convect away heat. The temperature in the scoop may be low, but the airflow may actually be going the wrong way if a lower pressure is created at the mouth of the scoop, which would happen if the airflow passes over the top....
I hope that makes some form of twisted sense to someone
23 September 2003, 04:29 PM
#52
I am measuring charge air temperature. That is the temperature of the air after the intercooler entering the inlet plenum. In other words the temperature of the air the engine is using to burn with the fuel. The temperature of the air outside of the intercooler is irrelevant, it’s the air the engine uses to produce power that matters.
On cruise the charge temp is around 17 degrees C when raining, 20 degrees C when dry with the IC sprays off. On a very hot day it can run up around 27 degrees C on cruise with the IC sprays off.
On cruise the charge temp is around 17 degrees C when raining, 20 degrees C when dry with the IC sprays off. On a very hot day it can run up around 27 degrees C on cruise with the IC sprays off.
23 September 2003, 09:59 PM
#57
Dan B, thats not important. Its the charge temp that matters. The intercooler is there for one reason, to lower charge temps to acceptable levels after the air is heated by the turbo compresor. Air flow above/below/to the left/right doesnt affect engine performance, only the resultant charge temp does.
24 September 2003, 10:05 AM
#59
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Of course it does. Both the volume of, and the temperature of the air flowing through the i/c are important. Obvious: if you reduce flow to zero or increase air temperature significantly, cooling ability will be severely impacted.
John was saying that - however you get there - it's the resulting charge temp that is important. A decent flow of cool air through the i/c helps you achieve that.
John was saying that - however you get there - it's the resulting charge temp that is important. A decent flow of cool air through the i/c helps you achieve that.
24 September 2003, 10:27 AM
#60
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Well, duuuh. (sorry, I still haven't got the hang of injecting electronic sarcasm)
Translating that: There is no change in efficency from 120mph to 150mph on the STI5 setup...... even though there should be 25% more air flowing through the cooler (assuming it is efficient).
What type of temps go into the 'cooler from the turbo?
Anyway. I don't think the scoops were designed to be effective at those speeds. Only very rarely would these speeds be seen on a rally, if at all. Oh, and the WRC cars have front mounts right?
(sorry, I still haven't got the hang of injecting electronic sarcasm)
As to the comments on scoop eficiency, my charge temps dont go over 40 degrees C when driving flat out at 150MPH at the nurburgring with a standard STi5 scoop/intercooler and 25 degrees ambiant, thats no diferent from when its driven hard at a UK circuit at 120MPH, so i would say its still being cooled.
What type of temps go into the 'cooler from the turbo?
Anyway. I don't think the scoops were designed to be effective at those speeds. Only very rarely would these speeds be seen on a rally, if at all. Oh, and the WRC cars have front mounts right?