928 Turbo
#31
Nordschleife Master
Very cool updates today, thanks!
The headlights look like Fiat Coupe? They look like they work pretty well with projector lights.
That is one huge turbo in the engine bay. I can't see wrap etc. - what are under-bonnet temperatures like?
The headlights look like Fiat Coupe? They look like they work pretty well with projector lights.
That is one huge turbo in the engine bay. I can't see wrap etc. - what are under-bonnet temperatures like?
#32
Nordschleife Master
#34
Administrator - "Tyson"
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#35
Three Wheelin'
Touche
I have heard about inconel's properties. They use it in alloys for valves too. I would still go with a coating just for the clean aesthetics though.
I have heard about inconel's properties. They use it in alloys for valves too. I would still go with a coating just for the clean aesthetics though.
#36
Advanced
Thread Starter
Thanks!
The splitter is own design (from 2 small splitters) and Fiat coupe is correct. The turbo is aircooled by a own design scoop under car with a sheild against engine. But I will have a temp gauge in enginebay...
Just to be sure.
The turbo is from a middlesized Volvotruck and has inlet 4" and outlet 2,5" twinscroll T4. I do not have the spec on it today but the spoolup was quick. I raced a 928 gt 91 same day and my car is so light in comparison... In the first gear anyhow...
Do anyone have a perfect solution for crankcase ventilation? I would like to have good air passage....
/Jonas
The splitter is own design (from 2 small splitters) and Fiat coupe is correct. The turbo is aircooled by a own design scoop under car with a sheild against engine. But I will have a temp gauge in enginebay...
Just to be sure.
The turbo is from a middlesized Volvotruck and has inlet 4" and outlet 2,5" twinscroll T4. I do not have the spec on it today but the spoolup was quick. I raced a 928 gt 91 same day and my car is so light in comparison... In the first gear anyhow...
Do anyone have a perfect solution for crankcase ventilation? I would like to have good air passage....
/Jonas
#37
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Any ceramic coating would still be so hot your skin would melt off.
Compairng a ceramic coating to a purpose made covering like the two I posted, would be like comparing sunscreen to the suits a firemen wears.
#38
Three Wheelin'
What a nicely finished project. Good work!
Here's a recent thread about crankcase venting:
Precision Motorwerks ventilation Kitl
928 Specialists may also have something. Either of them are top notch suppliers. You've done some amazing work and deserve top quality parts to go with what you have.
How is that Pugeot steering to install and drive?
Here's a recent thread about crankcase venting:
Precision Motorwerks ventilation Kitl
928 Specialists may also have something. Either of them are top notch suppliers. You've done some amazing work and deserve top quality parts to go with what you have.
How is that Pugeot steering to install and drive?
#40
Advanced
Thread Starter
Crankcase ventialtion
Edit: Oil filler neck in picture... Not filter.
Thanks both!
Steering origin - I cannot remember more than Peugeut today but I can have a look and get back to you.
It works fantastic!! Better than imagined and I just connected hoses to ordinary steering rack. Sounds a lot and cool to....eeeeeuuueeeeeuuu
20Amp fuse
I will sure look at your suggested ventilation.
My crankcase solution is as pictured today - I do not think my design will work with good move of air/oil mixture with this if I do not have valves that is leaking boost though...
I made it 2005 ~ish....
/Jonas
Thanks both!
Steering origin - I cannot remember more than Peugeut today but I can have a look and get back to you.
It works fantastic!! Better than imagined and I just connected hoses to ordinary steering rack. Sounds a lot and cool to....eeeeeuuueeeeeuuu
20Amp fuse
I will sure look at your suggested ventilation.
My crankcase solution is as pictured today - I do not think my design will work with good move of air/oil mixture with this if I do not have valves that is leaking boost though...
I made it 2005 ~ish....
/Jonas
Last edited by Gulpilen; 07-30-2012 at 06:23 PM. Reason: Spelling in picture
#41
Nordschleife Master
Hi Jonas -- Looks like a fun car! Have you put in on a dyno yet?
I am going to put my flame retardant suit and weigh in on the coating vs. wrappings argument. Fun, this will be like a PG-13 version of the ancient turbo vs supercharger debates, of which I've uncovered archaeological evidence! ;-)
First, can someone please find me an application in which it makes sense to put a sock on the turbine but it doesn't make sense to first ceramic coat the turbine? I don't think there exists one.
Second, we'll have to think about what's the objective here.
- If the objective is to protect the turbine itself, then sock may not be a good choice because the sock collects moisture. This used to be a big problem with the header wrappings, if the sock is designed to have an air gap between the sock and the turbine then maybe the moisture problem is not a big problem anymore. (If the moisture problem is a thing of the past, maybe I shoud run a sock on top of my coated turbines, too?)
- If the objective is to protect other components, then the sock is a good choice. However, a heat shield of any kind should work pretty well, and heat shields with an air gap don't trap moisture. The sock is a very convenient heat shield as it fits in most places where the turbo itself fits in. The ideal heat shield is not attached to the hot component, however.
- If the objective is to retain the most energy to run the turbine, I don't know whether a coating or a sock is the better choice. Does anyone have any unbiased dyno data on this? Just saying that the sock is cooler than the coated turbine doesn't prove anything from the energy perspective.
Third, I think there are a lot of differences between coatings and socks depending on who makes them. There's so much crap being sold in the "performance" market that I am sure most coatings will burn and most socks will melt on a turbo. That doesn't mean that all coatings or all socks are bad.
I think this is now the appropriate use of the following animated emoticon:
I am going to put my flame retardant suit and weigh in on the coating vs. wrappings argument. Fun, this will be like a PG-13 version of the ancient turbo vs supercharger debates, of which I've uncovered archaeological evidence! ;-)
A custom inconel wrap / blanket or turbo covering like those from DEI are significantly better than any ceramic coating.
Not trying to be a dick here, but the two options I posted work so well you can literaly put your hand on the turbo covering immedialty after coming off the track. Any ceramic coating would still be so hot your skin would melt off. Compairng a ceramic coating to a purpose made covering like the two I posted, would be like comparing sunscreen to the suits a firemen wears.
Second, we'll have to think about what's the objective here.
- If the objective is to protect the turbine itself, then sock may not be a good choice because the sock collects moisture. This used to be a big problem with the header wrappings, if the sock is designed to have an air gap between the sock and the turbine then maybe the moisture problem is not a big problem anymore. (If the moisture problem is a thing of the past, maybe I shoud run a sock on top of my coated turbines, too?)
- If the objective is to protect other components, then the sock is a good choice. However, a heat shield of any kind should work pretty well, and heat shields with an air gap don't trap moisture. The sock is a very convenient heat shield as it fits in most places where the turbo itself fits in. The ideal heat shield is not attached to the hot component, however.
- If the objective is to retain the most energy to run the turbine, I don't know whether a coating or a sock is the better choice. Does anyone have any unbiased dyno data on this? Just saying that the sock is cooler than the coated turbine doesn't prove anything from the energy perspective.
Third, I think there are a lot of differences between coatings and socks depending on who makes them. There's so much crap being sold in the "performance" market that I am sure most coatings will burn and most socks will melt on a turbo. That doesn't mean that all coatings or all socks are bad.
I think this is now the appropriate use of the following animated emoticon:
Last edited by ptuomov; 12-04-2012 at 01:37 AM.
#42
Three Wheelin'
Those look like Corvette C5 "Depo" headlights. Not a fan of them personally, but I do hear they are pretty dang light.