Member Since: 29 Jan 2013
Location: Aberdeenshire
Posts: 2294
Well good news, got the oil pump changed and the sump ( rusty) changed yesterday, good news is no partials in the sump at all so the bottom end is in good nick, so turbo conversion moving forward.
System update
Found that land rover like to do everything backwards and they use a vacuum to open the actuators on the turbo system valves, so not a standard method just fit as I hoped, but I have a vacuum pump from a previous system which with a reservoir will work fine.
Have to most likely change the D3 fuel filter system to a D4, as ned to room for the second exhaust pipe to route through, this is a bit of a pain but never mind.
Integration of the air ducts and a dump valve just in case is coming together nicely.
With most likely some of these bits due arrival.
Last edited by robbo770 on 12th Aug 2014 9:00 am. Edited 1 time in total
12th Aug 2014 8:50 am
Martin Site Admin and Owner
Member Since: 06 Nov 2004
Location: Hook Norton
Posts: 18457
Use of vacuum for device actuation is common on engines 06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
Any issues with the site let me know!
12th Aug 2014 8:57 am
Marc98
Member Since: 18 Jul 2011
Location: Monaco
Posts: 40
Syd wrote:
Robbo,
Have you looked at the Jag 2.7 set up?
I think that the TdV6 was also mounted on the Peugeot 607 and Citroën C6 (within others) also with a twin turbo also (same engine as the Jag).
If this helps:
http://en.wikipedia.org/wiki/Ford_AJD-V6/PSA_DT17
Perhaps taking a look at one of these engines may inspire Rob.
I am really looking forward to see the successful end of this project!
12th Aug 2014 10:06 am
DiscoDunc
Member Since: 08 May 2006
Location: Bristol
Posts: 16390
watching this with interest Robbo
excellent work
will be good to see what the difference is Duncan
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12th Aug 2014 10:39 am
robbo770
Member Since: 29 Jan 2013
Location: Aberdeenshire
Posts: 2294
Hi DiscoDunc,
I expect that I will have no lag in any gear and better torque values throughout the range, don't think it will gain anything top end as this is the small turbo which will even out the flat spots in the boost curves I feel.
hope it is worth it and I can get it with as much original parts as possible to make it viable for anyone to do.
I am specifically looking for bits off current motors for use so they will be readily available, the issue with the Jag and D4 systems is both the turbo's are smaller to allow both to contribute in mid to upper range, the project is to retain the larger primary on the D3 which should give more torque pick up with the secondary turbo always running in theory.
Last edited by robbo770 on 20th Sep 2014 8:08 am. Edited 1 time in total
12th Aug 2014 11:57 am
Martin Site Admin and Owner
Member Since: 06 Nov 2004
Location: Hook Norton
Posts: 18457
Rob,
Why are you going to run a separate vacuum pump when a vacuum source is already available?
How are you going to control the extra fuelling required to use the extra boost?06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
Any issues with the site let me know!
12th Aug 2014 2:31 pm
robbo770
Member Since: 29 Jan 2013
Location: Aberdeenshire
Posts: 2294
Hi Martin
The D3 has a larger air mass meter than the two small ones on the D4, so I expect with the small increase in air used that it will be able to cope. I will have a separate vacuum pump system to ensure the activation times are as small as possible for controlling the second turbo system
The current ECU will therefore be able to see the actual engine conditions and will just react quicker as the engine speeds up with less lag.
Last edited by robbo770 on 15th Aug 2014 3:19 pm. Edited 5 times in total
12th Aug 2014 2:53 pm
Ent
Member Since: 12 Oct 2007
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12th Aug 2014 3:05 pm
robbo770
Member Since: 29 Jan 2013
Location: Aberdeenshire
Posts: 2294
well some of the last bits arrived today before final mock up
M12 lambda plug for downpipe, nice non rusting high pressure piping for the boost tie-ins and the clamps that are a must
Member Since: 29 Jan 2013
Location: Aberdeenshire
Posts: 2294
Yumm, got a bargain of complete D4 style fuel filter assembly with all hoses etc to upgrade the fuel filter location to allow the clearance for the driverside exhaust downpipe
"Turned out to be an EGR problem but only diagnosed after changing both turbos!!"-------------------------------------------------------------------
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22nd Aug 2014 9:45 pm
robbo770
Member Since: 29 Jan 2013
Location: Aberdeenshire
Posts: 2294
maybe, maybe not, manifolds do not have cross over pipework, so thats one wrong thing, also means two smaller turbos, the primary on the D3 is much larger giving a better end result that the tidller that the D4 has, think I will be quicker with more flexiblity in boost range that the D4....FFRR SC 4.2
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"Turned out to be an EGR problem but only diagnosed after changing both turbos!!"
