Terrano 2 owner from down south got a couple questions

dan_the_drifter · 03-01-2018, 01:08

Hi,

To start sorry for late night post started to write this then got distracted and came back to it ha ha!

I've owned my 2003 2.7 terrano for about a year and a half now, use it as a general runaround but also to tow my drift car to events all over the country. Has been great and very reliable (the reason I bought it in the first place knowing it was gear driven etc) I just have a couple questions:

I am a mechanic by trade but mainly mess around with petrol tuning etc, have a good bit of experience with turbos, boost and afr's on petrols etc but my diesel knowledge is more limited my first question is have many people found any performance gain from fitting a 2.5" exhaust from say the elbow/downpipe back as I have my old s/s system off my 200sx that I upgraded earlier in the year so I could cut up and use that, i'm quite handy with the welder so not worried about fabricating bits. I was going to fit an egt sensor in the downpipe at the same time?

Also what are peoples experience with re-maps on the td27 intercooled engine? I find when towing it could do with just a bit more grunt and it can't quite pull 3rd gear up some of our steep/long motorway hills we have down here in Devon but 2nd is revving the engine flat out. I am pulling 2ton behind it though so not expecting to be racing anyone just curious if people noticed they could stay in a higher gear for a lot longer after a map?

Had a quick look through and you all seem like a friendly bunch. Any help much appreciated! Cheers

jims-terrano · 03-01-2018, 01:14

I never found my old 2.7 lacking when towing. Heaviest thing was a transporter with another Terrano for about 15 miles and seemed fine, caravan next heaviest which went all over until we sold it. Solarman might be able to give further advice as he tows an off roader on a trailer.

Welcome aboard by the way and yes this is a great place, found several groups and forums but nowhere seems to have the same atmosphere.

Lazy-Ferret · 03-01-2018, 01:31

I think Makeitfit fitted a large bore exhaust, but in order to get the best results, he built a new less angled corner for the turbo so he got better through flow right from the start.. I think you will need to join up to see his post on that though...

I have not had a remap, but I do notice the difference when towing our Caravan, which is an Adria, so comes in at about 1.8tonne, if I have not turned on the MAF Amp.

I normally leave it on, but turned it off for the MOT, and forgot to turn it back on. On Reigate Hill on the M25, solo, I can leave the top of the hill at 70mph, if nothing slows me down on the way up, if I get slowed down, I can normally get back to about 65. With the caravan on the back, I will only be doing about 35 by the top with the MAF Amp off, and 45 with it on. Engine gets noticeably hotter with the MAF Amp on though.

solarman216 · 03-01-2018, 01:32

Hi and welcome,yes I have a SWB T2 that I take to regular meets on a 4 wheel car trailer and have no power problems at all grossing at just over 4.5 tonnes, (with a Zexel pump) (the Bosch is much better) one of the best upgrades is a Maff amp booster but you will struggle to find one as the member on here is not making them anymore but it really did improve the low down torque, I had one on my dedicated off road motor but remove it and sold it on as I was always breaking front drive shafts, Rick

panelbeater · 03-01-2018, 10:07

welcome,so you drifted to here,i am sure you will contribute to the site.
my 2.7 terry had no problems towing up hill,a standard one but run on old cooking oil,sadley sold both now and got a 3l one for health reasons again no problem towing.again welcome.

dan_the_drifter · 03-01-2018, 23:10

Thanks to everyone for the nice introduction, best i've had and i've been on quite a few car forums

Ok I have not heard about the MAF amp booster, seen a lot of people use a resistor on the fuel temp,fuel rail pressure etc on common rail diesels but not for a pump like ours, was it just a simple resistor set up? Any DIY guides to this? Very interested if so.

Yes I was looking at the turbo elbow on mine and from previous experience with changing exhausts I thought it looked quite restrictive. As long as the flange off the turbo is easy to get hold of I can't see why i couldn't make a better/larger bore version.

Ye we have a large hill down here at the end of the m5 known as holden and if i hit the bottom around 65/70mph I will be down to 30ish by the top towing car/trailer behind and the terrano loaded with 10/12 wheels and tyres etc. If I can gain 10mph as mentioned with some kind of booster/re-map/exhaust improvement so i'm doing closer to 40mph I would probs be in 3rd and that would be great.

Keep the replies coming all experiences are great to hear

solarman216 · 03-01-2018, 23:22

Rayf #### is the guy who built the maf amp, if you send him a PM I am sure he will supply you with a circuit diagram, easy to build if you are electronics minded, but you will need to join to be able to PM him, Rick

03-01-2018, 01:08	#1
dan_the_drifter Junior Member Join Date: Dec 2017 Location: Devon Vehicle: Terrano 2 2.7td Posts: 4	Terrano 2 owner from down south got a couple questions Hi, To start sorry for late night post started to write this then got distracted and came back to it ha ha! I've owned my 2003 2.7 terrano for about a year and a half now, use it as a general runaround but also to tow my drift car to events all over the country. Has been great and very reliable (the reason I bought it in the first place knowing it was gear driven etc) I just have a couple questions: I am a mechanic by trade but mainly mess around with petrol tuning etc, have a good bit of experience with turbos, boost and afr's on petrols etc but my diesel knowledge is more limited my first question is have many people found any performance gain from fitting a 2.5" exhaust from say the elbow/downpipe back as I have my old s/s system off my 200sx that I upgraded earlier in the year so I could cut up and use that, i'm quite handy with the welder so not worried about fabricating bits. I was going to fit an egt sensor in the downpipe at the same time? Also what are peoples experience with re-maps on the td27 intercooled engine? I find when towing it could do with just a bit more grunt and it can't quite pull 3rd gear up some of our steep/long motorway hills we have down here in Devon but 2nd is revving the engine flat out. I am pulling 2ton behind it though so not expecting to be racing anyone just curious if people noticed they could stay in a higher gear for a lot longer after a map? Had a quick look through and you all seem like a friendly bunch. Any help much appreciated! Cheers

03-01-2018, 01:32	#4
solarman216 Off road maniac Join Date: Dec 2009 Location: Bexhill on Sea Vehicle: Y60 Patrol Me, 3 ltr Mrs Posts: 17,431	Hi and welcome,yes I have a SWB T2 that I take to regular meets on a 4 wheel car trailer and have no power problems at all grossing at just over 4.5 tonnes, (with a Zexel pump) (the Bosch is much better) one of the best upgrades is a Maff amp booster but you will struggle to find one as the member on here is not making them anymore but it really did improve the low down torque, I had one on my dedicated off road motor but remove it and sold it on as I was always breaking front drive shafts, Rick __________________ Ex banger racer now off road maniac Lokka on the front with manual hubs Diff lock on rear 3 inch SS straight through exhaust Manly winch bumper with 13000 lb winch 10 spike ground anchor, with multiple straps and blocks Super strong body cills capped with scaffold pole 20% stronger springs all round aggressive off road tyres on wheels so just swap. Aim to get stuck and be completely self sufficient in extraction, love getting muddy, 2ft deep is good but rare.

03-01-2018, 23:22	#7
solarman216 Off road maniac Join Date: Dec 2009 Location: Bexhill on Sea Vehicle: Y60 Patrol Me, 3 ltr Mrs Posts: 17,431	Rayf #### is the guy who built the maf amp, if you send him a PM I am sure he will supply you with a circuit diagram, easy to build if you are electronics minded, but you will need to join to be able to PM him, Rick __________________ Ex banger racer now off road maniac Lokka on the front with manual hubs Diff lock on rear 3 inch SS straight through exhaust Manly winch bumper with 13000 lb winch 10 spike ground anchor, with multiple straps and blocks Super strong body cills capped with scaffold pole 20% stronger springs all round aggressive off road tyres on wheels so just swap. Aim to get stuck and be completely self sufficient in extraction, love getting muddy, 2ft deep is good but rare.

03-01-2018, 01:14	#2
jims-terrano Senior Member Join Date: Sep 2004 Location: UK Posts: 12,965	I never found my old 2.7 lacking when towing. Heaviest thing was a transporter with another Terrano for about 15 miles and seemed fine, caravan next heaviest which went all over until we sold it. Solarman might be able to give further advice as he tows an off roader on a trailer. Welcome aboard by the way and yes this is a great place, found several groups and forums but nowhere seems to have the same atmosphere.

03-01-2018, 01:31	#3
Lazy-Ferret Senior Member Join Date: Jun 2012 Location: Sevenoaks, Kent Vehicle: Terrano 2.7TDi SE Touring Posts: 5,221	I think Makeitfit fitted a large bore exhaust, but in order to get the best results, he built a new less angled corner for the turbo so he got better through flow right from the start.. I think you will need to join up to see his post on that though... I have not had a remap, but I do notice the difference when towing our Caravan, which is an Adria, so comes in at about 1.8tonne, if I have not turned on the MAF Amp. I normally leave it on, but turned it off for the MOT, and forgot to turn it back on. On Reigate Hill on the M25, solo, I can leave the top of the hill at 70mph, if nothing slows me down on the way up, if I get slowed down, I can normally get back to about 65. With the caravan on the back, I will only be doing about 35 by the top with the MAF Amp off, and 45 with it on. Engine gets noticeably hotter with the MAF Amp on though.

03-01-2018, 10:07	#5
panelbeater Senior Member Join Date: Dec 2012 Location: clacton on sea essex Vehicle: nissan terrano 2 2.7 tdi Posts: 1,638	welcome,so you drifted to here,i am sure you will contribute to the site. my 2.7 terry had no problems towing up hill,a standard one but run on old cooking oil,sadley sold both now and got a 3l one for health reasons again no problem towing.again welcome.

03-01-2018, 23:10	#6
dan_the_drifter Junior Member Join Date: Dec 2017 Location: Devon Vehicle: Terrano 2 2.7td Posts: 4	Thanks to everyone for the nice introduction, best i've had and i've been on quite a few car forums Ok I have not heard about the MAF amp booster, seen a lot of people use a resistor on the fuel temp,fuel rail pressure etc on common rail diesels but not for a pump like ours, was it just a simple resistor set up? Any DIY guides to this? Very interested if so. Yes I was looking at the turbo elbow on mine and from previous experience with changing exhausts I thought it looked quite restrictive. As long as the flange off the turbo is easy to get hold of I can't see why i couldn't make a better/larger bore version. Ye we have a large hill down here at the end of the m5 known as holden and if i hit the bottom around 65/70mph I will be down to 30ish by the top towing car/trailer behind and the terrano loaded with 10/12 wheels and tyres etc. If I can gain 10mph as mentioned with some kind of booster/re-map/exhaust improvement so i'm doing closer to 40mph I would probs be in 3rd and that would be great. Keep the replies coming all experiences are great to hear