 | Home > Td5 > Defender Newbie wants info on remapping vs overdrive |
 
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yer you can fit a big intercooler on a air con model most intercoolers fit i know for a fact alive tunings one does and also ians irb development one fits 
| yobbie Member Since: 15 Nov 2010 Location: Isle of Wight Posts: 711   
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Mine has a IRB full size intercooler and I have air con. it isn't a problem. On the subject of overdrives, the GKN runs with only a small amount of ATF (about 1l from memory) this could run very hot on a highly tuned defender if run at high speeds, although I didn't have any problems running at 70mph. The Rocky Mountain O.D. uses the oil from the transfer box & there is a larger finned sump to aid cooling.
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17th Jan 2012 11:06pm |
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| kzycnn Member Since: 24 Apr 2009 Location: Northumberland Posts: 276 
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Only ever moment of grief I had with my GKN was after a long run in very high temperatures (not UK!) when it, briefly, decided not to play. Soon got going again when it cooled a little - on the same run.
Tony |
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18th Jan 2012 8:24am |
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| megatoad Member Since: 07 Jan 2012 Location: Hertfordshire Posts: 358 
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Blimey its 4 years ago I joined this forum and launched this thread.
Pleased to say that the 110 is still my pride and joy. I am still umming and ahhing over the original questions now I have lived with KJ for 4 1/2 years and 50K+ miles. Ironically I still have it on extended warranty and get it serviced at the main dealers. Than god, that first rebuilt gearbox fell appart within 12 months, first starting to whine, then downshifting to 2nd almost impossible, finally 4th refusing to engage. I finally got Land Rover Customer Services to intervene with warranty as it took 6 months for them to sort out another R380. This one done by A1 transmissions which touch wood is running sweetly 30K later. As for use, well I do haul Discos & RRCs around every now and again along with other hefty loads, as for the caravan thats pretty light in comparison. The 110 & 80 have been joined in the fold by my brothers old £00tdi D1 and an S111 88 thats sitting in the garden awaiting a rebuild. However Its going to be 10 years old shortly so as a gift we are thinking of giving it a little brother (not even built yet so will be a 16 plate!) I am still looking for some roverdrive feedback, I have read a few responses re noisiness but this is pottentially down to the incorrect oils being used. So now I am in a better position fiscally I am returning to the idea of installing the overdrive. No I am not interested in the 1.2 TB as I have chatted with various folk now who have regretted it in both Defenders and series motors. I may even start trying to tweak the power gently soon. He who dies with the most toys wins 
Defender 90 & 110, S1 80", Disco 1, S111 88 LRSOC & CVLRC |
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11th Jan 2016 12:16pm |
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| Tommo Member Since: 19 Dec 2013 Location: Leicestershire Posts: 830 
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Prefer to keep mine standard..not a feeble TD5 at all and it does what it needs to well.
I like the idea of standard as in my mind the insurance companies get enough out of me and would not want to give them more by notifying them of modifications etc |
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11th Jan 2016 8:00pm |
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| Treebeard Member Since: 27 Jun 2012 Location: Forest of Dean Posts: 40 
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I've had 2 rover drives on a standard td5 90. Driven carefully and using the specified gl4 fully synth oil, each lasted 6 months before a bearing went lumpy. Cruising at 60 mph 2000 rpm was great, but the rover drives can be heard ("scoring" noise). They get very hot. They also didn't improve fuel economy so I guess they added a reasonable eamount of friction into the drive train. Very easy to fit and a real shame that they didn't last. Got my money back. The gearing was no problem for the 90.
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11th Jan 2016 11:29pm |
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| megatoad Member Since: 07 Jan 2012 Location: Hertfordshire Posts: 358
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Thanks for that Treebeard.
I have read mixed reports so perhaps I will back off that idea then and leave the motor standard. I agree fairly much with Tommo too about keeping it pretty much standard. I do feel at times it can be a wee bit gutless, yet other days it feels really sprightly. As you can see this is a motor I intend to keep for many years to come so prefer to leave the engine unstressed in standard tune. Though I may upgrade the intercooler if it ever goes. Too many folk here seem to favour EGR blanking, remaps, decat, bigger turbos etc, I often wonder what happens when somone makes aclaim without declaring the mods (keep trying to impress upon the lads this fact) It was bad enough when a few years back Lancaster refused to insure it because it had 9 seats, and Direct Line because it had a Snorkel !! Maybe I shouldn't mention the dixon bate towbar in case I dared to tow somthing!!!! Just had some annoying news from my local dealer, we cant get the new 90 on a 16 plate as DVLA apparently wont register them after 1st March so any back orders will all have to be preregistered on 65 plates. Sad that I was hoping to have a 16 newt to my 06. At least I will have an 80", 90", 100" (D1), 110" and an 88", cant get swmbo to agree to a 130 though. He who dies with the most toys wins
Defender 90 & 110, S1 80", Disco 1, S111 88 LRSOC & CVLRC |
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12th Jan 2016 4:45pm |
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| megatoad Member Since: 07 Jan 2012 Location: Hertfordshire Posts: 358
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Just an addendum to this thread.
Back in August courtesy of Killer90 aka CSK I had an Alive remap, EGR deletion and a full Dinitrol treatment underneath. The remap really does bring the TD5 alive and I think its more enjoyable to drive than the wifes new TDCi 90 which by comparison to the unmapped TD5 is a sportscar. I was quite surprised how good the 2.2 feels and how well it towed the caravan to the Nationals and the 80 on the Ifor back home, although it does lack in engine braking when slowing a heavy load downa hill. The insurance premium was only an extra £45 for the performance mods on the TD5 which I thought was OK (I us Adrian Flux brokers). That said over the last few days teh TD5 has started making some strange noises. It has started chuffing while under light load, let you r foot off the throttle and it goes away, its definatly an engine related frequency so I am wondering if I may have a slight manifold leak, or the dreaded warped manifold my be occuring. Its difficult to pin point exactly. A few weeks back on the really hot day in September there was a sound of a pop and hiss as if a tyre got punctured but that did not reoccur and all the oomph is still there. I am not someone who thrashes engines, I let the power arrive and tend to use it gently. so watch this space as I slowly investigate when I get time, either that or book it into Land Rover lol He who dies with the most toys wins
Defender 90 & 110, S1 80", Disco 1, S111 88 LRSOC & CVLRC |
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4th Oct 2016 10:03am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 16909 
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Generally a warped exhaust manifold will cause a whistling, shrieking, hissing, or farting noise under acceleration which increases as the boost increases. You may also notice that the acceleration performance drops off a bit.
My Disco was doing exactly this for some time. Eventually I made time to investigate and found that the manifold branch nearest the bulkhead had sheared the upper stud and the nut had fallen off the lower, so that the rearmost branch was no longer fastened to the head at all. Fortunately the manifold didn't actually seem to have warped, though as a result of the doule fault it made a load shriek (reminiscent of a slipping fan belt) under acceleration. For the time being I simply replaced the missing nut, which had actually lodged lower down on the engine, and the noise is gone. it is interesting though how much the performance seems to have improved simply by doing this, although some of that may be down to the fact that I can no accelerate without it sounding as though I am molesting a piglet! I do have a de-webbed and refaced manifold and a set of new studs to fit when I get time. |
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4th Oct 2016 12:41pm |
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| megatoad Member Since: 07 Jan 2012 Location: Hertfordshire Posts: 358
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This is a strange sound, almost like something tapping a spoke on a wheel once evry rotation.
It starts after the engine has warmed up. It does not inrease in volume when you accelerate, it is most noticeable while cruising say 40-50 under mild load. As soon as the throttel is let off the sound dissappears, so it seems to be combustion pressure related. Not as noticeable as the old compression chamber gasket failures on my old Perkins D4.203 in my first 109 He who dies with the most toys wins
Defender 90 & 110, S1 80", Disco 1, S111 88 LRSOC & CVLRC |
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4th Oct 2016 2:22pm |
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| mk1collector Member Since: 17 Sep 2009 Location: West Yorkshire Posts: 6769  
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Maybe a sticking injector? Ray
My build thread http://www.defender2.net/forum/topic17615.html |
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4th Oct 2016 3:55pm |
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| Cupboard Member Since: 21 Mar 2014 Location: Suffolk Posts: 2971 
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I'm slightly concerned that you know what you molesting a piglet sounds like!  |
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4th Oct 2016 4:44pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 16909
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^^ Oops, looks like the secret's out!
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4th Oct 2016 5:22pm |
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| CDN38 Member Since: 14 Nov 2014 Location: Courtenay, BC Posts: 729  
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I have 25,000 miles on my Roverdrive unit. No issues whatsoever. I've done a lot to my truck in the 3 years that I have had it, and I would have to say the overdrive is probably the best value for money so far. (the Puma seats come a close second)
I have done a trip from Vancouver to Palm Springs and Southern California (about 4,000 miles round trip, and a majority of it on Interstate highways) Also a trip to Moab Utah, (about 3,500 miles round trip) I was averaging about 75mph most of the way, with a roof top tent on my Hannibal rack and a full load of gear. Mileage was about 23MPG. There overdrive has performed perfectly, and made the Interstate speeds possible for extended periods. Haven't got to the point of doing the intercooler, turbo and a remap yet, but I'm hoping to get on that in the coming year. it's a Landrover thing... my renovation thread: http://www.defender2.net/forum/topic40792.html |
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4th Oct 2016 5:26pm |
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| lightning Member Since: 23 Apr 2009 Location: High Peak, Derbyshire Posts: 2266
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I have a a TD5 110 in standard tune and l do about 1,000 miles per month in it.
I don't really find it wanting for power, it will cruise happily at 65-70mph and l wouldn't really want to go much faster in a Defender 110 anyway. On local driving it's fine. I don't tow with it though. I rarely need to exceed 2,000 rpm unless l am going up a hill. I have had it remapped twice in the past but there were issues, smoke being one, and rough running at 2500-3000rpm. Both remaps were done by specialists and not generic ones. I found that removing the CAT made a really good improvement to turbo response at low speeds, but it made too much droning noise when on the motorway so l had to refit it. I had the EGR removed but no difference was noticed. The extra performance (when remapped) was good fun but the Defender is what it is. If l want to go fast l can go out in my Z3 3.0. |
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5th Oct 2016 8:15am |
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