PPC - Rear Mount Turbo.... GENIUS!

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.

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....

what about oil pressure to them? :S

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

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.

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

Just wrong on many many fundamental levels.....

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.