TD42 Performance

[Hoonz]

i've read another write up some where similar to safari compared to a charger ...


no top end difference as they were boosting the same ...
both had intercoolers ...

charger had a slight bottom end advantage till turbo spooled up ...

perhaps slightly bias towards safai as it is on their website

[Adsman]

Ta Thor

Had a bit of a think about it later........duuhhh!!!

Would it need some thing to relieve excess pressure or would it come drown getting the right ratio of the drives so the it comes on at approx. 1500rpm and gives max pressure at 2500rpm??

So have you fitted the super yet? I'm keen to see how it goes and if your engine can handle it without a rebuild. Rough tuning usually f**ks them quick!

Let me know how it drives!

[Adsman]

I spoke to a shop here in Townsville and the bloke recons that a MACK truck turbo would be the beez neez. It would be at full waste gate by 1200rpm giving power basically from idle up ie. very little lag. He recons that using mandrel exhaust and standard aircleaners ie. dual filtration, the engine would last just as long as a non-turbo engine. He quoted $4500 fitted and tuned with 12mnths warranty. Aparently most of the intercooled turbos and industrial air pumps used on petrol cars cause problems when fitted to diesels. These turbos are designed to operate above 2500 rpm and when fitted to diesels they cause the engine to overrev and have big lag down low. Alot of them are retuned to allow them to operate lower down, this then gives them a heat problem due to their size and design. The MACK turbos are designed to spin constantly and have ample air cooling, therfore they also last longer than the other petrol turbos.

Give me some feed back and let me know what you thing>

[Hoonz]

who ever said a mack turbo has to be joking ... or an idiot
have u seen the size of them?
and how many litres are mack engines ... more litres = more exhaust

there would be alot of lag to get it to spool up with just 4.2L

unless they're matched with a small exhaust wheel/housing

[bogged]

who ever said a mack turbo has to be joking ... or an idiot have u seen the size of them?

He had to be joking.. it couldnt be serious, it would take about 3 days to spool up!

[morkz]

i agree with Bogged and HOONZ

[Grungle]

There is a guy in Maroochydore that fits Mack turbo's to little Mazda rotary engines (company is Mazquick). He modifies one side (intake or exhaust - not sure which) and gets HHHUUUGGGEEE gains (calls it his Mack hybrid). When I looked under the bonnet it was like it had 2 engines as the turbo was nearly half the size of the rotary

I would say that anyone who new a lot about turbos could well put a Mack turbo on a TD42 but it would have to be modified I would think.

Regards
David

[morkz]

the turbo to look for is a TD04 turbo off WRX and evo standard rally turbo that alot companies like MTQ use. you could pick up one these very cheap and modify to suit as well.

[beretta]

Depends what Mack motor the turbo is off, the old four valve motors out of the Valueliners were a fairly small motor, they're not all huge motors just cause they're out of a truck, fact is they rev very low , admitedly theres more exhaust, but they do spool up at very low revs, would like to know more info, like what motor the turbo is off this bloke is talking about?

[GUJohnno]

i run mine at 10psi and it keeps up with some holden v6 with 35 muddies....

cheers WHITTY

A Holden V6 with 35 muddies..............


I'd like to see that...

[Adsman]

The turbos are modified so that they spool up at 1000rpm and reach full waste gate at 1200rpm. Aparently no problems there.

He fitted one to a friends car who tows drag vehicles around australia. On this GQ Patrol they tow around 5 ton comfortly at 110kph with modified rear end suspension. The turbo runs on drives of up to 10hrs a day without heat issues.

It sounds pretty good but since no one I know of has used one I'm not convinced yet. Most people I know run garrets but their motors are stuffed by 400 000. A garret cost $4200 fitted and tunned in Townsville or Cairns, so for an extra $300 the MACK turbo sounded interesting.

What are peoples fuel economy like with the turbos on the highway?
My GQ natural aspirated at 100km/h gets 10-11km/L of diesel.
(I use Pro-ma Fuel additive)

[JK]

What are peoples fuel economy like with the turbos on the highway?
My GQ natural aspirated at 100km/h gets 10-11km/L of diesel.
(I use Pro-ma Fuel additive)

You running a lift and larger tyres?

I'm getting low 12s with 6" lift, 35s (stock gearing) averaged over a 1000ks of driving per tank taking in touring, around town and about 3hrs of offroad.

I am yet to work out pure highway travel but I guess I would be getting 11 or so.

[Adsman]

What are peoples fuel economy like with the turbos on the highway?
My GQ natural aspirated at 100km/h gets 10-11km/L of diesel.
(I use Pro-ma Fuel additive)

You running a lift and larger tyres?

I'm getting low 12s with 6" lift, 35s (stock gearing) averaged over a 1000ks of driving per tank taking in touring, around town and about 3hrs of offroad.

I am yet to work out pure highway travel but I guess I would be getting 11 or so.

is that L/100km or km/L ??
and how many pound of boost do you run?

[Rainbow Warrior]

The turbos are modified so that they spool up at 1000rpm and reach full waste gate at 1200rpm. Aparently no problems there.

He fitted one to a friends car who tows drag vehicles around australia. On this GQ Patrol they tow around 5 ton comfortly at 110kph with modified rear end suspension. The turbo runs on drives of up to 10hrs a day without heat issues.

(I use Pro-ma Fuel additive)

How much can it tow uncomfortably at 110kph? 7-8 tonne?
Can it stop 5 tonne comfortably?

[Adsman]

The turbos are modified so that they spool up at 1000rpm and reach full waste gate at 1200rpm. Aparently no problems there.

He fitted one to a friends car who tows drag vehicles around australia. On this GQ Patrol they tow around 5 ton comfortly at 110kph with modified rear end suspension. The turbo runs on drives of up to 10hrs a day without heat issues.


How much can it tow uncomfortably at 110kph? 7-8 tonne?
Can it stop 5 tonne comfortably?

Well tosser if you have a look at rear sports brakes with a adjusted load valve and as I mentioned modified rear suspension, yes you can stop 5 tonne of trailer mass>

[JK]

is that L/100km or km/L ??
and how many pound of boost do you run?

Sorry. 12 L/100km which is 8km/L

11 L/100km would be 9.1km/L

Running the Turboglide / Garrett setup which he upped a little from their standard setup for me. I won't know until I get a boost gauge but I'd hazard a guess at 8-9psi.

[Adsman]

is that L/100km or km/L ??
and how many pound of boost do you run?

Sorry. 12 L/100km which is 8km/L

11 L/100km would be 9.1km/L

Running the Turboglide / Garrett setup which he upped a little from their standard setup for me. I won't know until I get a boost gauge but I'd hazard a guess at 8-9psi.

Sounds good. I had a few concerns that the fuel consumption might be higher from other people. But that sounds about right for a natural aspirated without fuel additive.

Thanks for that

[Rainbow Warrior]

The turbos are modified so that they spool up at 1000rpm and reach full waste gate at 1200rpm. Aparently no problems there.

He fitted one to a friends car who tows drag vehicles around australia. On this GQ Patrol they tow around 5 ton comfortly at 110kph with modified rear end suspension. The turbo runs on drives of up to 10hrs a day without heat issues.

(I use Pro-ma Fuel additive)

How much can it tow uncomfortably at 110kph? 7-8 tonne?
Can it stop 5 tonne comfortably?

Well tosser if you have a look at rear sports brakes with a adjusted load valve and as I mentioned modified rear suspension, yes you can stop 5 tonne of trailer mass>

Didno see anknee stuff about brake upgrades in your post.
I just found it a bit scary that anybody could tow twice their vehicles weight, can you get an engineering mod to do that?

Hopefully you're not going to pull this down to insults.

[Adsman]

The turbos are modified so that they spool up at 1000rpm and reach full waste gate at 1200rpm. Aparently no problems there.

He fitted one to a friends car who tows drag vehicles around australia. On this GQ Patrol they tow around 5 ton comfortly at 110kph with modified rear end suspension. The turbo runs on drives of up to 10hrs a day without heat issues.


How much can it tow uncomfortably at 110kph? 7-8 tonne?
Can it stop 5 tonne comfortably?

Well tosser if you have a look at rear sports brakes with a adjusted load valve and as I mentioned modified rear suspension, yes you can stop 5 tonne of trailer mass>

Didno see anknee stuff about brake upgrades in your post.
I just found it a bit scary that anybody could tow twice their vehicles weight, can you get an engineering mod to do that?

Hopefully you're not going to pull this down to insults.

Sorry to upset you. You just sounded like a smart ass in your response. Anyhow no more insults. K

I assumed that people would have understood that a brake upgrade is necessary. Also by QLD law any trailer carrying 2 tonne or over must have electric brakes!! Therefore the vehicle brakes legally require no modifications. How much weight do you think a truck carries on each trailer? So it doesn't matter that the trailer is twice the vehicle mass or even 10 times its mass. Just FYI - a Nissan LWB can have RGVM of over 10 tonne.

Enough said this thread is about turbos!!

[bogged]

I assumed that people would have understood that a brake upgrade is necessary.

remember Assume makes an ASS of U and ME

You would think its common sense, but you would be shocked how many people are running turbos, V8's, 35+ with no brake upgrades, or even thought to upgrading brakes.

[marko]

If your looking for big power look at the Td42 cams thread at the nissan forum. You can't go go past a variable vane turbo charger. Best of both worlds, boost from 1000rpm and top end power. and electronicaly control. I got mine from the states And not shore if there any left. And wouldn't have a clue where to get one from here. It's a very big turbo, it just fits. 4'' inlet, 2.5''out 3.5''out on the exhaust side. I may be able to get more, I will have to make some call's. prop $2000 tho

[scooter_k7]

Turbos, Superchargers, Intercoolers ...! These 4.2's seem to have a real problem with being under powered. I'm glad I have a 3.0TDi

But you're already squeezing every horse out of your engine, hence the sad condition it'll be in if it ever makes 500,000km.
But if I turbo intercooled my TB42, you'd be the one under powered

How do you quantify that statement you know someone that has tried to squeeze more out of a ZD30 without success?

How many ZD30's you seen at 500,000km in poor condition?

2 b frank, ive never seen a fast zd30 let alone one that has a decent amount of kms on it

[gargoyle]

There are lots of options for more power and the simplest ones are all about getting more air in so you can burn more fuel , well duh ... but if you live in the hunter valley area and dont know where to start then perhaps I can help . After building a big plenum style intake manifold in preparation for my own turbo upgrade and finding a much larger than expected gain , and having lots of interest from other patrol owners , I am starting to build bigger than standard intake manifolds for a couple of mates , mostly for highend boosted applications but even for NA motors the gains to be had are substantially more than extractors/exhaust upgrades and for around the same or less cost , and can be custom designed to suit the application . I don't know if I can build a profitable business out of this , but if I get enough interest then I might try .I don't have dyno sheets yet , but will be swapping my motor for a fresher one within the next couple of weeks and hope to have comparative runs between standard setup and 2 different custom setups all the same motor within 3 weeks after that . I currently work nightshift so please don't ring me but I can be txted on 0427427405

[marty]

There are lots of options for more power and the simplest ones are all about getting more air in so you can burn more fuel , well duh ... but if you live in the hunter valley area and dont know where to start then perhaps I can help . After building a big plenum style intake manifold in preparation for my own turbo upgrade and finding a much larger than expected gain , and having lots of interest from other patrol owners , I am starting to build bigger than standard intake manifolds for a couple of mates , mostly for highend boosted applications but even for NA motors the gains to be had are substantially more than extractors/exhaust upgrades and for around the same or less cost , and can be custom designed to suit the application . I don't know if I can build a profitable business out of this , but if I get enough interest then I might try .I don't have dyno sheets yet , but will be swapping my motor for a fresher one within the next couple of weeks and hope to have comparative runs between standard setup and 2 different custom setups all the same motor within 3 weeks after that . I currently work nightshift so please don't ring me but I can be txted on 0427427405

Nice thread dig.

Hmmm post up some pictures of you manifolds.
Where do you think the gains have been made?
Are you talking power (kw) gains or are you talking torque (nm) gains or response gains?
Interesting.

Marty

[gargoyle]

As stated , I don't have dyno runs yet and the old motor that my first prototype is bolted to has some serious injector pump issues so I cant give any figures at this stage . I can say definitely KW gains as that motor would not make any usable power past about 3100 rpm but now pulls hard to at least 4000 rpm . I dont think it has gained much if any torque in the original torque band , but seems to have widened the peak torque plateau by about 500-600 rpm higher into the rev range . It hasn't lost anything down low , in fact pulls well and smoothly from about 1100 rpm all the way through to 3400 rpm , but does seem a little slower to respond to a sudden throttle on between 1100 rpm to 1700 rpm , but having said all that the injector pump is leaking fuel and has an intermittent flat spot especially when cold plus that motor has massive blowby and so is impossible to get reasonable data from hence the upcoming motor swap and the delay on getting dyno runs . The other product of the setup though is a much cleaner exhaust and dramatically reduced engine temps when under extreme load . With the whole family plus luggage in car Ourimbah hill used to be 3rd gear and 50 km/h by the top with the temp gauge right in the red , all but boiling on a 34 degree day , but now can do it in 5th and still over 80 km/h at the top with the temp needle never going past 3/4 even on a 38 degree day .
I havent as yet figured out how to upload photos here yet and am not sure that I would anyway as at this stage I'm just looking to see how much interest there might be for me to build these for sale and if it does turn out to be commercially viable then I would be handing my research to any body else that wants to compete . Obviously I couldnt build a business with only 1 product and I would have to start designing airboxes to complement the design and do other fab work as well , but if I have any hope of building a business out of this then I need to keep some secrets , at least at this stage , having said that , it will be interesting to see if there is even much of a market for these things .
Cheers Rob .

[marty]

As stated , I don't have dyno runs yet and the old motor that my first prototype is bolted to has some serious injector pump issues so I cant give any figures at this stage . I can say definitely KW gains as that motor would not make any usable power past about 3100 rpm but now pulls hard to at least 4000 rpm . I dont think it has gained much if any torque in the original torque band , but seems to have widened the peak torque plateau by about 500-600 rpm higher into the rev range . It hasn't lost anything down low , in fact pulls well and smoothly from about 1100 rpm all the way through to 3400 rpm , but does seem a little slower to respond to a sudden throttle on between 1100 rpm to 1700 rpm , but having said all that the injector pump is leaking fuel and has an intermittent flat spot especially when cold plus that motor has massive blowby and so is impossible to get reasonable data from hence the upcoming motor swap and the delay on getting dyno runs . The other product of the setup though is a much cleaner exhaust and dramatically reduced engine temps when under extreme load . With the whole family plus luggage in car Ourimbah hill used to be 3rd gear and 50 km/h by the top with the temp gauge right in the red , all but boiling on a 34 degree day , but now can do it in 5th and still over 80 km/h at the top with the temp needle never going past 3/4 even on a 38 degree day .
I havent as yet figured out how to upload photos here yet and am not sure that I would anyway as at this stage I'm just looking to see how much interest there might be for me to build these for sale and if it does turn out to be commercially viable then I would be handing my research to any body else that wants to compete . Obviously I couldnt build a business with only 1 product and I would have to start designing airboxes to complement the design and do other fab work as well , but if I have any hope of building a business out of this then I need to keep some secrets , at least at this stage , having said that , it will be interesting to see if there is even much of a market for these things .
Cheers Rob .

Hmmmm okay.
I have had a little play in this area, and so have many others.
I doubt you uncovered any secrets that aren't readily available to read about already, or have been put into practice.
There is a wealth of discussion on this subject around the place, with one fella testing a lot of variations.
Power gains will be minimal, if any. Torque gains can be had.
Don't quit your day job I suggest.
And you picked a doozy of a thread to bring back to life for your idea.
Have you read any of this thread?
Good luck.

Marty

[gargoyle]

Yes I have read the whole thread , and yes agreed the power gains will be minimal but compared to extractor/exhaust upgrades will be more power gain for less money and with the side benefit of reduced head temps particularly in #1 and #6 due to even flow distribution which prevents the head cracking that some guys get from leaning on things a little too hard ( we wont tell the newbies which screw to adjust , I see far too many smog monsters around Newcastle already ) . I dont claim to be making outrageous power from it , just a good gain for the money and some positive side effects that will help engine longevity rather than hurt it like some cheaper mods can . Lets face it , how many people have spent $2k+ on a set of extractors and exhaust system and then found they only gained about 2% , where as an intake manifold and airbox setup should gain at least 4-5% and for less than $1k
As also previously stated , I dont for 1 second think I can make a living out of building these alone and would be doing other fab work and am only looking for some supplemental income and no I wont be quitting my job anytime soon , in fact I doubt it's really worthwhile pursuing due to insurance and other setup costs , but I will never know unless I have a go , and in reality it comes down to this do you as a 4x4 owner/enthusiast want to see more options available for your rig , or less , OME , TJM and ARB all had to start somewhere and lots of others failed along the way . I dont know how much interest there is , thats why I asked .

[tj81]

the turbo to look for is a TD04 turbo off WRX and evo standard rally turbo that alot companies like MTQ use. you could pick up one these very cheap and modify to suit as well.

Closest so far....

The WRX turbo is a different spec to what DTS uses. The Turbo your looking for is a TD05 something like a 16G or 18G.

Something like this: http://www.ebay.com.au/itm/Kinugawa-Tur ... 4173ec48ee" onclick="window.open(this.href);return false;

[265grunter]

The turbos are modified so that they spool up at 1000rpm and reach full waste gate at 1200rpm. Aparently no problems there.

He fitted one to a friends car who tows drag vehicles around australia. On this GQ Patrol they tow around 5 ton comfortly at 110kph with modified rear end suspension. The turbo runs on drives of up to 10hrs a day without heat issues.


How much can it tow uncomfortably at 110kph? 7-8 tonne?
Can it stop 5 tonne comfortably?

Well tosser if you have a look at rear sports brakes with a adjusted load valve and as I mentioned modified rear suspension, yes you can stop 5 tonne of trailer mass>

Didno see anknee stuff about brake upgrades in your post.
I just found it a bit scary that anybody could tow twice their vehicles weight, can you get an engineering mod to do that?

Hopefully you're not going to pull this down to insults.

Sorry to upset you. You just sounded like a smart ass in your response. Anyhow no more insults. K

I assumed that people would have understood that a brake upgrade is necessary. Also by QLD law any trailer carrying 2 tonne or over must have electric brakes!! Therefore the vehicle brakes legally require no modifications. How much weight do you think a truck carries on each trailer? So it doesn't matter that the trailer is twice the vehicle mass or even 10 times its mass. Just FYI - a Nissan LWB can have RGVM of over 10 tonne.

Enough said this thread is about turbos!!

mate....just FYI YOU ARE DREAMING ABOUT OVER 10 TONNE.HOW DO YOU WORK THAT OUT....

[country boy]

snorkel and piss off pre-cleaner

PIssed off my precleaner box today, just need to get a bracket made up, adn its finished.

Easy as shiat job, adn looks so much better with 3inch pipe from snorkel to airbox, instead of that shitty 3x1inch precleaner box

Hi bogged i dont suppose you have a finished pic ? also where did you get the pipe from or what did you use for it ? Cheers Scott