|
|
May 28, 2008 16:44:42 GMT
|
Got my PPC this month and some genius has fitted a turbo to his Pug 205 by replacing the back box on the exhaust with a turbo unit and used the length of the car as a back pressure/intercooler run. Its worth getting just to read this - real R-R thinking here. I've already been under the Marina GT with a tape measure (plenty of room under the rear seats where the centre box sits....). Hmmmm..... ![;)](//storage.proboards.com/forum/images/smiley/wink.png)
|
|
Rover Metro - The TARDIS - brake problems.....Stored Rover 75 - Barge MGZTT Cdti 160+ - Winter Hack and Audi botherer... MGF - The Golden Shot...Stored Project Minion........ Can you see the theme?
|
|
|
tigran
Club Retro Rides Member
In rust we trust. Amen.
Posts: 6,444
Club RR Member Number: 142
|
|
May 28, 2008 16:51:14 GMT
|
Guy with a 700bhp-odd m5 did that in the states a couple of years back. I just don't get any advantages of it. I know the m5 had it done as the V10 took up too much space under the bonnet and there was physically no room under there.
Also could be potentially pants on a slammed car.
|
|
1964 Rover P5 i6 1987 BMW 525e - The Rusty Streak 1992 Micra K10 2001 BMW E46 316i 2002 BMW E46 330Ci 2013 BMW F31 320d 2018 BMW G31 530d
|
|
misteralz
Posted a lot
![*](//storage.proboards.com/forum/images/stars/star.png) ![*](//storage.proboards.com/forum/images/stars/star.png)
I may drive a Volkswagen, but I'm scene tax exempt!
Posts: 2,364
|
|
May 28, 2008 16:59:21 GMT
|
When I saw that on the cover a few days back I thought it'd be Will ranting in Piston Broke about those daft turbines you see on chav Corsa endcans. But no. I was quite impressed by the thinking and I'd certainly try it for a laugh. Didn't bother posting up about it, though, as I usually get it a few days before it comes out and I only ever seem to pipe up when there's RRers in it. ![:P](//storage.proboards.com/forum/images/smiley/tongue.png)
|
|
|
|
|
|
May 28, 2008 17:00:22 GMT
|
|
|
Last Edit: May 28, 2008 17:03:04 GMT by Lewis
|
|
chrisw
Part of things
![*](//storage.proboards.com/forum/images/stars/star.png)
Posts: 171
|
|
May 28, 2008 17:04:24 GMT
|
Its not a new idea, when Mugen developed the turbo for the Mrk1 CRX they 'remote' mounted it..... Biggest problem with it is the drop in pressure caused by gases cooling makes the setup a lot less efficient....
|
|
|
|
|
|
May 28, 2008 17:35:39 GMT
|
ISTR seeing this kind of install in scanned brochures from the early days of turbos too.
|
|
|
|
rtlkyuubi
Posted a lot
![*](//storage.proboards.com/forum/images/stars/star.png) ![*](//storage.proboards.com/forum/images/stars/star.png)
Low and Slow
Posts: 2,922
|
|
May 28, 2008 17:38:25 GMT
|
what about oil pressure to them? :S
|
|
|
|
|
|
May 28, 2008 17:41:42 GMT
|
You have to have a remote pump and reservoir to cool the turbocharger ![:)](//storage.proboards.com/forum/images/smiley/smiley.png) A little electric one provides enough flow to keep them in operating ranges ![:)](//storage.proboards.com/forum/images/smiley/smiley.png) You can see one in the 2nd picture of my post quite clearly - the braided lines running from turbo to a little cylindrical pump in the middle
|
|
|
|
qwerty
Club Retro Rides Member
Posts: 2,410
Club RR Member Number: 52
|
|
May 28, 2008 17:42:34 GMT
|
I bought the magazine this afternoon and thought this was pure genius!! Saves space and weight over front axle reduces under bonnet temps and reduces costs or time spent making a turbo exhaust manifold!! Might go and bolt one to the cinq...... maybe instead of the middle box ;D
|
|
|
|
10mpg
Club Retro Rides Member
Posts: 4,253
Club RR Member Number: 204
|
|
May 28, 2008 18:02:34 GMT
|
|
|
The Internet, like all tools, if used improperly, can make a complete bo**cks of even the simplest jobs...
|
|
|
|
|
May 28, 2008 18:49:51 GMT
|
Why?! I don't see how welding turbo exhaust flanges onto straight pipe at the back is any easier than welding flanges onto bends for an exhaust manifold in the engine bay. And what about lag? surely the response of the turbo spooling would be worse having it so far away?
If there's a serious space issue I can understand it, but otherwise I can't see the point. Happy to be proven wrong though.
|
|
|
|
slater
Club Retro Rides Member
Posts: 6,390
Club RR Member Number: 78
|
|
May 28, 2008 19:45:56 GMT
|
If you have got room up front your stupid to put it at the back relly. I guess theres instances where its 'easier' that way however.
|
|
|
|
|
|
May 28, 2008 20:10:29 GMT
|
talk about lag! I can see some kind of intake/engine temp idea, buit seriously, its gonna take an age for the pressure to build sufficiently in the long intake pipe runs. the further you place the turbo from the throttle butterfly the more throttle lag you get. and you not gonna be running draw through are you... also long exhaust manifold runs loose energy that could be harnessed by turbine (think lewis has covered that angle). good to try these things out I suppose, just my 2p ![:)](//storage.proboards.com/forum/images/smiley/smiley.png)
|
|
|
|
qwerty
Club Retro Rides Member
Posts: 2,410
Club RR Member Number: 52
|
|
|
Well after reading the article I still think its good idea. Standard bore exhaust causes back pressure which feeds the turbo. Straight boost pipe from turbo to TB is prolly no less efficient than the air having to run through a maze of pipes and an intercooler.
Saves space and weight in the engine bay. Iradicates heatsoak in the engine bay.......and obviously its cheaper and prolly a fair bit easier!! As the article points out your cutting out a couple of expensive components (manifold and Intercooler)
Its been mentioned that its no easier to weld a turbo flange on a manifold than it is on to the back of the exhaust, but for someone like myself it makes it a lot simpler. First of all the exhaust its self isn't cast un like the manifolg. Secondly its far easier and cheaper to get an exhaust "place" to weld one on the back if you can't welderize yourself......
I still think its a great idea and would love to experience the 205 in question to see what the Lag situation is like, although if the article is anything to go by its not bad!
Anyway those are my thoughts ;D
|
|
|
|
|
|
|
Just wrong on many many fundamental levels..... ![::)](//storage.proboards.com/forum/images/smiley/eyesroll.png)
|
|
|
|
qwerty
Club Retro Rides Member
Posts: 2,410
Club RR Member Number: 52
|
|
|
Just wrong on many many fundamental levels..... ![::)](//storage.proboards.com/forum/images/smiley/eyesroll.png) Such as? Thats not meant in an argumentative way....I am actually genuinely interested as I know very little about it..... as can be seen by my above post haha
|
|
|
|
MWF
Posted a lot
![*](//storage.proboards.com/forum/images/stars/star.png) ![*](//storage.proboards.com/forum/images/stars/star.png)
Posts: 2,945
|
|
|
It's a brilliant idea and I've always loved it. Why people try so hard not to like it I don't know.
Only thing that would bother me is in this country you would get a lot of water spray off the back wheels.
|
|
|
|
|
|
|
|
mother curse word. I managed to type out like 3 paragraphs on this on a mobile phone then clipped the wrong button with my thumb and deleted the lot. So now back on a PC so I can type it all again, FFS....
Anyway, I have seen a few of these done in recent years. Those who install and use them say there is no perceptible lag over a front mounted turbo. Hmmmm..... Well, so they say. There are also a bunch of arguements about heatsoak being reduced and less charge cooling being needed and a load of other stuff I am also going to need to be convinced on, but don't discount until I see otherwise.
The best install I have seen doing this was in a US mag on a yank tank which had been built for stealth. The twin turbos were hidden up by the fuel tank and the return pipe under pressure was sneakily hidden, running in the voids of the chassis rails or whatever until it got to the front where it then was passed uop through the heater channels or somethign into the engine bay. It then made a short hop up the back of the stock air filter housing where a pressurised cap sat on top of the carb under the old stock filter lid. Open the bonnet or make a cursery look under and you couldn't see anything which wasn't box stock factory looking. Very cool. Runs like a bat outa hell as well.
|
|
1937 Austin Street Rod - 1941 Wolseley Not Rod - 1956 Humber Hawk - 1957 Daimler Conquest - 1966 Buick LeSabre - 1968 Plymouth Sport Fury - 1968 Ford Galaxie - 1969 Ford Country Squire - 1969 Mercury Marquis - 1970 Morris Minor - 1970 Buick Skylark - 1970 Ford Galaxie - 1971 Ford Galaxie - 1976 Continental Mark IV - 1976 Ford Capri - 1976 Rover V8 - 1994 Ford Fiesta
|
|
qwerty
Club Retro Rides Member
Posts: 2,410
Club RR Member Number: 52
|
|
|
It's a brilliant idea and I've always loved it. Why people try so hard not to like it I don't know. Only thing that would bother me is in this country you would get a lot of water spray off the back wheels. Thats what I thought about as well.... The filter and turbo are low down....could cause problems. I absolutely love the idea!!! Especially as my newly purchased vehicle doesn't have much engine bay room.....
|
|
|
|
|