Discussion
More popular in Scandanavia, but they are most certainly good turbos. I think they are actually based in the UK ? Or have some sort of operation here ?
I recall chatting to Andy Frost on msn ages ago, ( Red Victor ) and he uses a pair of them...partly due to the backup their local facility was giving him with development etc.
I recall chatting to Andy Frost on msn ages ago, ( Red Victor ) and he uses a pair of them...partly due to the backup their local facility was giving him with development etc.
Holset's official line is that their turbos will melt if used on petrol cars due to the higher temperatures.
Anyone with a basic grasp of physics knows this is complete b*****ks, as the turbine blades in a diesel situation would then be within 1-200C of failure, and that would make them very malleable at 100,000rpm!
I presume they have no interest in the aftermarket as they're doing very nicely in OEM, thank you. I'm certainly bolting an HX35 to the side of my engine (although I'm beginning to think I may need something bigger).
They're based in Huddersfield.
Anyone with a basic grasp of physics knows this is complete b*****ks, as the turbine blades in a diesel situation would then be within 1-200C of failure, and that would make them very malleable at 100,000rpm!
I presume they have no interest in the aftermarket as they're doing very nicely in OEM, thank you. I'm certainly bolting an HX35 to the side of my engine (although I'm beginning to think I may need something bigger).
They're based in Huddersfield.
marT350T said:
G S racing i would think.
the HX40 turbo looks good for a 700 bhp turbo and the price compared to a garrett is really good.
I had actually thought GB...but yes, I'm sujre you're right. I knew it was initials with a G in it.the HX40 turbo looks good for a 700 bhp turbo and the price compared to a garrett is really good.
As I say...Red Victor runs a pair, and he said Holset were very helpful. And they are very popular in Scandanavia. SO Im sure they are very capable units.
One Finnish companies offerings.
http://www.proturbo.fi/index_en.htm
There are indeed a pair on the Victor, running inconel exhaust wheels if I remember rightly.. (Specs on http://www.redvictor1racing.co.uk )..
BB-Q said:
Holset's official line is that their turbos will melt if used on petrol cars due to the higher temperatures.
Anyone with a basic grasp of physics knows this is complete b*****ks, as the turbine blades in a diesel situation would then be within 1-200C of failure, and that would make them very malleable at 100,000rpm!
I presume they have no interest in the aftermarket as they're doing very nicely in OEM, thank you. I'm certainly bolting an HX35 to the side of my engine (although I'm beginning to think I may need something bigger).
They're based in Huddersfield.
Anyone with a basic grasp of physics knows this is complete b*****ks, as the turbine blades in a diesel situation would then be within 1-200C of failure, and that would make them very malleable at 100,000rpm!
I presume they have no interest in the aftermarket as they're doing very nicely in OEM, thank you. I'm certainly bolting an HX35 to the side of my engine (although I'm beginning to think I may need something bigger).
They're based in Huddersfield.
I used to work as a Manufacturing Engineer for Garrett, and the significance on 200 deg C should not be considered lightly. Variable nozzle turbo's just can't deal with petrol exhaust temps and all Garrett's Turbo's for Petrol cars have a water cooled centre housing for bearing survival.
)stevieturbo said:
Marf said:
Mr POD said:
Variable nozzle turbo's just can't deal with petrol exhaust temps
How do the turbos on the 911 Turbo manage the temps?But then.....
If its a turbocharged petrol car....
I doubt they'd.....
be much below.....
850C.....
Sorry..... multiple......'s are one of my bugbears
stevieturbo said:
I suspect Porsche know what they are doing though.
No doubt, and it would be interesting to know what is different materials wise in the turbo Porsche uses when compared to the VNT turbo's used in modern diesel engines.Marf said:
Mr POD said:
Variable nozzle turbo's just can't deal with petrol exhaust temps
How do the turbos on the 911 Turbo manage the temps?I'm guessing that KKK (I assume that Porsche would use a German Turbo ?) have a different more crude Variable nozzle which gets around the Garrett Patents ?
It is 9 years since I left.
Mr POD said:
It is 9 years since I left.
Did you work for KKK?Mr POD said:
I'm guessing that KKK (I assume that Porsche would use a German Turbo ?) have a different more crude Variable nozzle which gets around the Garrett Patents ?
No idea, I cant find anything about their construction.Mr Whippy said:
Shirley you can just look at one?
I thought it used one of those push/pull type occluding shrouds that expose more or less of the turbine wheels to the gas flow!?
Dave
Dont call me Shirley I thought it used one of those push/pull type occluding shrouds that expose more or less of the turbine wheels to the gas flow!?
Dave
lolIm sure none of us have a Porsche turbo to pull out of out pockets just for a nosey.
i heard most of the problems that deisels where having with VNT turbos, some are soo bad that actually service for turbo replacements, was due to them getting 'full or dirt'. im guessing this was due to carbon build up not very high temps??
anyone know what the EGTs are for a big rig? be intresting to see how close to a petrol engine they are. also you have to remember that trucks can often sit at WOT for LONG lengths of time. this would put alot more stess on the turbo than 10 seconds WOT.
Cheers
Chris.
anyone know what the EGTs are for a big rig? be intresting to see how close to a petrol engine they are. also you have to remember that trucks can often sit at WOT for LONG lengths of time. this would put alot more stess on the turbo than 10 seconds WOT.
Cheers
Chris.
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