B-8-D
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down to one car!!
Posts: 4,038
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Sept 28, 2006 13:56:36 GMT
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any one had any experience of using a turbo orig' from a deisel on a petrol?? the reason i am asking is because they are much more plentyfull and cheeper at the local scrappy than petrol ones... ive seen project that are built using them but i don't know about the "longlivity" of this? i know that the exhaust turbine and/or housing is of a different material and that deisels have a cooler exhaust gas...... kind of a continuation on this thread: retrorides.proboards86.com/index.cgi?board=general&action=display&thread=1159393334but like i say id like to know if it has been done and does it last?? any comments helpfull many thanks si ;D |
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Last Edit: Sept 28, 2006 13:58:39 GMT by B-8-D
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Smiler
Posted a lot
I no longer own anything FWD! Or with less than 6 cylinders, or 2.5ltrs! :)
Posts: 2,492
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Sept 28, 2006 14:03:24 GMT
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Here's what I know (or have read/been told):
1) Work with lower reving engines and don't generaly provide enough boost for petrol applications.
2) The turbine blades will melt if used with a petrol engine as desiel exhaust is cooler then petrol exhaust and so the blades are made of lower spec material.
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www.Auto-tat.co.uk'96 Range Rover P38 DSE (daily driver) '71 Reliant Scimitar SE5 GTE 3.0ltr Jag V6 Conversion '79 Reliant Scimitar SE6A 3.0ltr 24valve Omega Conversion '85 Escort Cabrio 2.0 Zetec - Sold '91 BMW 525i - Sold '82 Cortina 2.9i Ghia Cosworth - Sold '72 VW Campervan - Sold '65 LandRover 88" - Sold
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B-8-D
Posted a lot
down to one car!!
Posts: 4,038
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Sept 28, 2006 14:10:19 GMT
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thanks smiler. the turbo will be going on a little baby 875cc imp engine and so the small low reving turbo i am thinking maybe a good option (there is also not many small engine petrol turbos dihatsu/5gtt/metro etc and they hold good money!  ) also the turbo will be mounted approx 24" or more away from the head and so exhaust gasses should(?) be a bit cooler by the time it "hits" the turbine blades. any one else care to comment? i know blown imp used a diesel one on his for approx 1000 miles. and seamed fine.... |
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Sept 28, 2006 14:20:23 GMT
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Does Mr_Bollox work for Garratt? It might be worth PMing him if he doesn't reply  I understand that the older the turbo, the less specialised and more likely to work on anything. Dunno if that's right though |
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B-8-D
Posted a lot
down to one car!!
Posts: 4,038
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Sept 28, 2006 14:24:04 GMT
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Does Mr_Bollox work for Garratt? It might be worth PMing him if he doesn't reply I understand that the older the turbo, the less specialised and more likely to work on anything. Dunno if that's right though ive heard that as well funnily enough..! thats interesting about mr_bollox,,, will do if ee don't..... chears si |
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Sept 28, 2006 14:31:46 GMT
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On the 480 forum, theres a guy who runs a 740 diesel T3 turbo on his 480 turbo engine. He's run it at 1.8 bar of boost and hes had it on for ages, with no problems. www.volvo-480-europe.org have a search on the forum for more info. I guess it depends more on the size and application rather than petrol or diesel! |
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Sierra - here we go again! He has an illness, it's not his fault.
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Sept 28, 2006 14:41:07 GMT
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Very true, smaller turbos spin faster and get hotter than larger turbos, so more stress in put on the components.
One thing though, diesel turbos generally produce more stock boost than petrol turbos, the BMW diesels run mega boost, something like 2.4bar!
J
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B-8-D
Posted a lot
down to one car!!
Posts: 4,038
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Sept 28, 2006 16:16:06 GMT
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ok this is all good news to me i think i will get a common "scrapyard turbo" and have a play..
ive just been resurching things and because i am going to run the turbo so far away from the head then it will be as cool if not cooler than a deisel anyway.. i think this is the way to go for me.
and blownimp thanks for that i will make sure i am not getting too much boost certainly don't want anywhere in the region or 2.4 bar!! fec thats quite abit.. prob why they go so well!!?
si
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Sept 28, 2006 16:50:16 GMT
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ok this is all good news to me i think i will get a common "scrapyard turbo" and have a play.. ive just been resurching things and because i am going to run the turbo so far away from the head then it will be as cool if not cooler than a deisel anyway.. i think this is the way to go for me. and blownimp thanks for that i will make sure i am not getting too much boost certainly don't want anywhere in the region or 2.4 bar!! fec thats quite abit.. prob why they go so well!!? si Its exhaust gas heat that is an issue not heat from the head. If you are going to run it flat out all the time, eg. if it was a race car then you would have big problems, as a road car, it shouldnt be too bad. |
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Sept 28, 2006 17:20:45 GMT
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that would depend how you drive LOL
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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 - 1994 Ford Fiesta
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Sept 29, 2006 7:51:13 GMT
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...and blownimp thanks for that i will make sure i am not getting too much boost certainly don't want anywhere in the region or 2.4 bar!! fec thats quite abit.. prob why they go so well!!? si Same with the volvo 740 one it runs like 2 bar on the diesel engine so 1.8 bar on a petrol would not cause too many problems. |
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Sierra - here we go again! He has an illness, it's not his fault.
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Smiler
Posted a lot
I no longer own anything FWD! Or with less than 6 cylinders, or 2.5ltrs! :)
Posts: 2,492
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Sept 29, 2006 11:07:18 GMT
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There was a thread a little while ago showing a turbo mounted much further back down the exhaust system under the middle of the car. This should help reduce temperatures entering the turbine. Also, tho longer run to the inlet manifold does away with as much need for an intercooler. I don't know how it effects turbo performance though or turbo lag.
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www.Auto-tat.co.uk'96 Range Rover P38 DSE (daily driver) '71 Reliant Scimitar SE5 GTE 3.0ltr Jag V6 Conversion '79 Reliant Scimitar SE6A 3.0ltr 24valve Omega Conversion '85 Escort Cabrio 2.0 Zetec - Sold '91 BMW 525i - Sold '82 Cortina 2.9i Ghia Cosworth - Sold '72 VW Campervan - Sold '65 LandRover 88" - Sold
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Sept 29, 2006 11:18:35 GMT
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There was a thread a little while ago showing a turbo mounted much further back down the exhaust system under the middle of the car. This should help reduce temperatures entering the turbine. Also, tho longer run to the inlet manifold does away with as much need for an intercooler. I don't know how it effects turbo performance though or turbo lag. I have seen that on turbochaged Ford Prodes in America, due to 2.5 V6 being a tight squeeze the turbo is mounted down behind the gear box! I would image that where would be slightly more lag mounting the turbo further done the exhaust system. Do exhaust gases losses velocity as they travel down the exhaust? |
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Sierra - here we go again! He has an illness, it's not his fault.
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B-8-D
Posted a lot
down to one car!!
Posts: 4,038
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Sept 29, 2006 11:52:58 GMT
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I'm trying to find an artical to post that i read in a freinds magazine.
its a camaro with the turbo mounted under the rear seatpan and has a oil scavenge pump to get the oil back to the sump.
apparently hardly any lag and no need for an intercooler!!
it does impressive runs on the 1/4 mile but is a road car really. it seams to have started a trend over there..
si
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B-8-D
Posted a lot
down to one car!!
Posts: 4,038
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Sept 29, 2006 12:04:20 GMT
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Last Edit: Sept 29, 2006 12:16:48 GMT by B-8-D
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Smiler
Posted a lot
I no longer own anything FWD! Or with less than 6 cylinders, or 2.5ltrs! :)
Posts: 2,492
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Sept 29, 2006 20:09:11 GMT
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That looks vaguely familiar. Maybe a pair of turbos from a couple of olg Peugeot diesels could find there way onto the ends of the down pipes on my 'tina's new V6? |
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www.Auto-tat.co.uk'96 Range Rover P38 DSE (daily driver) '71 Reliant Scimitar SE5 GTE 3.0ltr Jag V6 Conversion '79 Reliant Scimitar SE6A 3.0ltr 24valve Omega Conversion '85 Escort Cabrio 2.0 Zetec - Sold '91 BMW 525i - Sold '82 Cortina 2.9i Ghia Cosworth - Sold '72 VW Campervan - Sold '65 LandRover 88" - Sold
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B-8-D
Posted a lot
down to one car!!
Posts: 4,038
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Sept 29, 2006 21:56:39 GMT
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That looks vaguely familiar. Maybe a pair of turbos from a couple of olg Peugeot diesels could find there way onto the ends of the down pipes on my 'tina's new V6? do it/ try it... u know it makes sence..  si |
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street
Posted a lot
6.2 ft/lbs of talk
Posts: 4,662
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Sept 30, 2006 10:02:30 GMT
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This is something thats discussed a lot but i'd really like to see someone off RR do it to prove to the world once and for all its do-able...... Si, I reckon your the man for the job! ;D Sounds like it will work anyway from whats been said. Also, the rear mounted turbo we've discussed on here before too, seems such a simple solution to most turbo problems! The only thing I can see bieng a problem is the oil supply? The other end of the car is a long way to pump oil to and from....  |
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Last Edit: Sept 30, 2006 10:05:06 GMT by street
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Sept 30, 2006 11:16:40 GMT
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Use a small electric pump, circulating in a small, isolated system from turbo to cooler and back again?
*n
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Top grammar tips!
Bought = purchased. Brought = relocated
Lose = misplace/opposite of win. Loose = your mum
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street
Posted a lot
6.2 ft/lbs of talk
Posts: 4,662
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Sept 30, 2006 12:08:59 GMT
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Thats a good idea Isn't it true that the other problem with strapping a diesel turbo to a petrol engine is that diesels use thinner oil than a petrol engine, so the oil ways are smaller on a diesel turbo? Think thats right  If so a seperate circuit would solve that problem. Also though about having an oil feed off the diff, and having a small pump for it, but transmision oil may be too thin.... and thats probably a bit over complicated aswell!  |
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