I may be mad..........

bazza2541 · October 22, 2008, 11:43:11 PM

I was thinking about the engine in my 165 and what to do with the one I bought off Paul when I had an idear.
I want to use a holset HX35 but there isn't enough room, so hows about mounting it behind the back bumper?

paul_gt4 · October 22, 2008, 11:44:40 PM

you've more money than sense

bazza2541 · October 22, 2008, 11:45:26 PM

They do it in Yankeeland to those corvette-thingys.

bazza2541 · October 22, 2008, 11:46:45 PM

The way I sees it, the exhaust gasses will be cooled down a good bit by the time they reach the turbine and so won't meltify the diesel turbo?

bazza2541 · October 22, 2008, 11:49:04 PM

Like this (a bit)

bazza2541 · October 22, 2008, 11:53:02 PM

And if I fuel it with LPG, I can run a 12.1 CR.

bazza2541 · October 22, 2008, 11:56:26 PM

On the plus side you get
*Reduced under bonnet temperatures.
*Cooling effect of under-car airflow on exhaust gasses.
*Cooling effect of under-car airflow on oil pipes.
*Marginally increased turbo lag (hopefully).
*Cooler running turbo.

On the minus side you get
*Nuthin comes to mind.

paul_gt4 · October 22, 2008, 11:59:44 PM

guy in the states done that style of set up on a new M5 with mad power, that would be some serious work and a serious amount of cash to fund it

bazza2541 · October 23, 2008, 12:02:18 AM

Nah, it would need some lengthened oil feed and return lines, longer intercooler piping and some mounting brackets. Those lorry turbos are cheap as chips.

nev520 · October 23, 2008, 09:55:56 AM

go for it matey, i can't wait to see the finished beast

flyingtele · October 23, 2008, 10:00:35 AM

yes, the idea of the rear mounted turbo is intriguing. would definitely prolong the life of the tubby but serious lag could be an issue

peterp1per · October 23, 2008, 09:41:51 PM

how does the oil return work on a setup like that?

i always thought that a minimum 30 degrees angle of the dangle was needed between the tubby drain and the sump?

being gravity drained the oil wont run along horizontal lines all the way to the engine?

paul_gt4 · October 23, 2008, 09:44:41 PM

probably an inline feed and return pump could settle that issue peter

bazza2541 · October 23, 2008, 11:24:47 PM

Quote from: paul_gt4 on October 23, 2008, 09:44:41 PM
probably an inline feed and return pump could settle that issue peter

Yeah a supplementary pump is the way to go, acts like a turbo timer too.

paul_gt4 · October 24, 2008, 12:58:52 AM

http://www.ststurbo.com/

have a look here, might help you with a few ideas

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I may be mad..........