Adventurer
unfortunately it will never be that quiet, I have never heard a diesel that quiet before. The closest I have heard would have to be the new vw Jetta TDI's and they have a lot of exhaust emissions ,baffles, mufflers and whatever else involved. I only have a glass pack to tone it down, with the length of pipe. I doubt it will be loud, but it will never be oem xterra quiet. I think it will be as loud as how my xterra was with the Nismo exhaust.Originally Posted by Slicky72
"Be careful whose advice you buy, but, be patient
with those who supply it. Advice is a form of
nostalgia; dispensing it is a way of fishing the
past from the disposal, wiping it off, painting
over the ugly parts, and recycling it for more
than its worth."
-Baz Luhrmann
Austin Overlanders
Adventurer
I can say it is not for the faint of heart! after it has all been said and done... it was a royal PITA. If anyone would like to try to tackle the swap, I do have the spare td27t drive train awaiting a body to go into.I personally like it even as it is, the sound is definitely not a problem I would think. The only reason that I am not trying this is my skills, eeh, the lack of my skills
IMO that is how all Xterra's should be
"Be careful whose advice you buy, but, be patient
with those who supply it. Advice is a form of
nostalgia; dispensing it is a way of fishing the
past from the disposal, wiping it off, painting
over the ugly parts, and recycling it for more
than its worth."
-Baz Luhrmann
Austin Overlanders
Adventurer
finished up the exhaust and did a real road test today
Last edited by roninjiro; 05-31-2012 at 12:40 AM.
"Be careful whose advice you buy, but, be patient
with those who supply it. Advice is a form of
nostalgia; dispensing it is a way of fishing the
past from the disposal, wiping it off, painting
over the ugly parts, and recycling it for more
than its worth."
-Baz Luhrmann
Austin Overlanders
Observer
Man, I truly envy your wrenching skills. I just love the sound of the diesel.
Adventurer
thank you nasko!
"Be careful whose advice you buy, but, be patient
with those who supply it. Advice is a form of
nostalgia; dispensing it is a way of fishing the
past from the disposal, wiping it off, painting
over the ugly parts, and recycling it for more
than its worth."
-Baz Luhrmann
Austin Overlanders
Expedition Leader
So is it really any louder than the 3.3l?
Adventurer
yes it louder. This is comparing it to the original drivetrain that was in there. It had the 4 cats on it with a chambered muffler. Now it only has the turbocharger and glass pack to muffle the sound. It is not stupid loud, it just sounds like a domestic diesel pickup I suppose.
also a small update... I have fried the ecu. I am using the original ecu to retain stock gauges, a/c, transmission interlink.... and I did it all by grounding out the ecu on accident testing the a/c system.
"Be careful whose advice you buy, but, be patient
with those who supply it. Advice is a form of
nostalgia; dispensing it is a way of fishing the
past from the disposal, wiping it off, painting
over the ugly parts, and recycling it for more
than its worth."
-Baz Luhrmann
Austin Overlanders
Darn great job you have done there, wish I had seen this thread earlier. I am from South Africa and those power plants are fairly common here in many different models. My truck has the slightly lower model than the one you have there now. I think your s is fly be wire (no throttle cable, but ECU controlled accelerator). Excuse the African terminology, we have some strange ways of naming things.
I think there is a model still better than that one you have that came with a top mount Intercooler. The big question I have is around the ECU. We have another truck here with a similar 2.5 motor. The sub assembly is the same, just the bore and stroke and some hang on bits are slightly different. We want op install the QD32ETI motor that came out of the Nissan Caravan and E50 Terrano. Boots 150KW, so nice power, but fully ECU driven to Elctro/machanical diesel pump and injection system.
The Caravan and Terrano were never available here is South Africa, so we are stuck. Some guys have taken the pump and butchered to run full mechanical, but fuel consumption is horrible.
So if you have any information where we can lay our hands on a ECU or what ECU would work for us, it would be great.
Some thoughts:
Your noise level is typical of a the diesel Nissan. I watched your vids and the interior noise is about the same as mine.
I don't understand all this emission mumbo jumbo you guys have there, we run as we want. My 2.7TD runs open straight pipe. It's a concoction of sizes that was put on by the previous owner and then the silencer removed by me whet it blocked up totally. Here is what mine sounds like
Picture of my motor I replaced after Hydraulic lock when I did not make it through a river
DSC07759.JPG
We found here, due to our high temperatures, that the viscous fan was the way to go. The electric fan units just could not do the job.
Love your truck and seriously of all the nice goodies you guys got from Nissan over there. We never saw the Xterra or the first Gen Pathfinder and the Caravan. We only got the Terrano II and then some after market builds like my truck.
Looking forward to some replies here and watching your progress.
David (bfreesani - Hillbilly)
1997 Nissan Sani (D21) 2.7TD Station wagon
Expedition Leader
Yuck on the hydro lock and the fried ECU! Not cheap to fix on either accounts.
Adventurer
my model is a drive by cable, I cannot stand the drive by wire systems myself. The better version of what I have has the intercooler on it but it also has an electronic module on the injection pump, of which I did not want as that would require the factory terrano ecm. As of right now I use my original ecm from my petrol engine, but only because it effects other creature comfort items and also the transmission. The QD32ETI is a totally different beast that I could not imagine trying to tackle as far as all the electronic ecm sections. But I believe you can tackle that project if you do not mind reading the schematics. My conversion has me going back to the schematics all the time and lucky for me I like doing things like that.
Honestly if you want to do something like that, buy a service/workshop manual for the vehicle that the QD32ETI came in, and compare the schematic to your truck. I bought and installed the TD27T for fuel savings, and simplicity reasons; not power. The way I saw it... the engine is used worldwide and spoken highly of.
I don't have to worry about emissions where I register my vehicle. I could also run straight pipe, but chose not to, and used a single fiberglass packed muffler to tone it down a bit. And even in the area were I live I MAY be able to get away with emission exemption because of the diesel power train.
I myself do not like electric fans, I have had electric fans installed on my xterra only to overheat due to the extreme outside temps I have encountered also. I now only try to run the viscous/clutch fans also.
Thank you for your post
On another note:
I have went to a salvage yard and picked up another ecu and BINGO, everything is working the way it should (kinda)! The old ecu is fried and I fried it by grounding out the a/c system. With the replacement ecu I made progress on the Tach signal. FYI the tach signal is coming from a VR sensor off the injection pump gear, but I had to convert the signal with a HEI module and still trying to figure out the right amount to resistor to pull a proper rpm square wave signal. A signal is registering but not in the right boundaries so I am still working on it. Once the tach is working properly the a/c system will cycle on properly. So once the tach is working I am going to be technically done with the conversion
Last edited by roninjiro; 06-04-2012 at 12:19 AM.
"Be careful whose advice you buy, but, be patient
with those who supply it. Advice is a form of
nostalgia; dispensing it is a way of fishing the
past from the disposal, wiping it off, painting
over the ugly parts, and recycling it for more
than its worth."
-Baz Luhrmann
Austin Overlanders
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