Turbo Fitment

Submitted: Friday, Mar 23, 2007 at 23:52
ThreadID: 43580 Views:2369 Replies:5 FollowUps:8
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I'm looking at buying a reputable kit and fitting it myself and then taking it to a local guy to tune it properly.

Has anyone done this before? Did you have any problems?? The actual fitment looks pretty straight forward but time consuming and hence I reckon I can save atleast $500 in labour doing it myself.

I can get a kit which includes full 2.5in exhaust system, delivered for under $2500. (Please tell me if anyone knows of a better deal than this...??) I reckon then maybe $150 (2 - 3 hrs) max to tune it. This compares favourably with the $3500 plus that most places want for doing the job.

Now I do all my own servicing and repairs and fitting so its not like I don't know what a spanner is...before people start saying leave it to the experts (whose probably only a 2 yr apprentice anyway...other than the tuning)

I actually need to get the engine compression tested first to see if she's up for it (265000km).

I thought about extractors and bigger exhaust but that only gives at absolute best 1/3 the gain of turbo charging and costs half as much. Need to do something before I buy a camper trailer in the years to come.
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Reply By: Truckster (Vic) - Saturday, Mar 24, 2007 at 00:31

Saturday, Mar 24, 2007 at 00:31
Yup.. Fitted 2 Denco kits with me and mate at the spanners... bleep easy. 1 day inc fitting exhaust.

but as you said, get the tuning done by Pro's.. or you can bleep everything big time in diesels.

you mention a price on a system, that depends on which system this is, and if its new and if you get warranty if you fit it yourself - some you dont.

People want $3500 fitting and tuning? or all up with the kit?
AnswerID: 229399

Follow Up By: Member - Hughesy (NSW) - Saturday, Mar 24, 2007 at 10:06

Saturday, Mar 24, 2007 at 10:06
It from Turbo-Glide using a Garrett 28 turbo. All new and yes still get a warranty if installed yourself. Yeah the 3.5K includes fitting and tuning (dyno).

I want to go with a non water cooled turbo kit so that I don't get the associated extra strain on the cooling system. Got any tips for me???

How much were the Denco kits you installed?? How much tuning was required after fitting?? Did you just drive it down to the mech shop??
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Follow Up By: Truckster (Vic) - Saturday, Mar 24, 2007 at 10:54

Saturday, Mar 24, 2007 at 10:54
In all reality, $3500 all up isnt THAT bad IMHO.. if you start stripping manifold studs and crap, its a nightmare.. but make sure that the fitment price includes these things.

Driving it very carefully once short distance to the spanner man (depending on how far it is), SHOULDNT MAYNOT hurt your car, it will just be short on fuel.

Denco Kit is really worth lookin at, no water cooled turbo there either, and comes with exhaust and good instructions!
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Reply By: Member - Nick (TAS) - Saturday, Mar 24, 2007 at 10:42

Saturday, Mar 24, 2007 at 10:42
Fitted a DTS turbo to my 4 Runner when I had it and as Truckster said dead easy.It was a water/oil cooled turbo and took about 1/2 day to fit.Vehicle already had a h/d clutch and bigger exhaust.Also worth checking out valve clearances and having injectors o/hauled.
Im doing our HZJ105 in a month or so(with intercooler)
AnswerID: 229440

Follow Up By: Member - Hughesy (NSW) - Saturday, Mar 24, 2007 at 10:52

Saturday, Mar 24, 2007 at 10:52
Thanks Nick. Yeah I'm going to put new injectors in soon and also get the valve clearances checked. So whats your opinion on whether to have water cooled or just oil cooled?? I've read a fair bit and it seems that water cooled turbos are only needed for petrol engines or highly worked diesels. I think that a lot of the overheating issues people have after turboing is due to putting all that extra heat into the cooling system that doesn't need to be there and hasn't been designed for. I'd love to have the intercooler as well put thats more $$$$. Let me know how it all goes. What is the cost of the DTS system??
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FollowupID: 490199

Follow Up By: Member - Nick (TAS) - Saturday, Mar 24, 2007 at 12:25

Saturday, Mar 24, 2007 at 12:25
I think the kit was $2300, got a quote a couple of months ago just as a feeler.I am sticking with the DTS as it comes in quicker than alot of other brands(no lag).Yes the intercooler is alot extra but the vehicle is used for our business so its a good tax claim.
Read post below regarding water cooling.
As you are going to do, I fit them and then get the experts to tune it up.Last one cost $90.I also fit EGT gauge to moniter temps.
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Follow Up By: Member - Nick (TAS) - Saturday, Mar 24, 2007 at 12:35

Saturday, Mar 24, 2007 at 12:35
I think the kit was $2300, got a quote a couple of months ago just as a feeler.I am sticking with the DTS as it comes in quicker than alot of other brands(no lag).Yes the intercooler is alot extra but the vehicle is used for our business so its a good tax claim.
Read post below regarding water cooling.
As you are going to do, I fit them and then get the experts to tune it up.Last one cost $90(mates rate).I also fit EGT gauge to moniter temps.
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FollowupID: 490217

Reply By: Wayne (NSW) - Saturday, Mar 24, 2007 at 10:52

Saturday, Mar 24, 2007 at 10:52
Hughesy,

Fitting the Turbo is not that hard. Remove the old exhaust manifold and replace with turbo and manifold.

Then the fun begins. You will need a oil feed and plumbing. Also a oil return to the sump. I don't know how they do them now but a few years back we had to punch a hole in to the sump and tap the hole.

A fuel aneroid should also be plumbed to the turbo. The 100 series has one on top of the fuel pump so that should be easy.

At 265000km if, the injectors, have not already been changed they would need to be done before the tune up can be done properly. The fuel pump might have to be look at as well. These things are only because of the amount of kilometres that the motor has done.

The motor will have to be checked before you start the job. I would have thought that this would be part of the warranty requirements.

I would recommend to have the turbo water cooled. If it is going to put extra strain on the cooling system it is not tuned properly.

A good exhaust system will also improve the performance of the turbo and a tune up on a dyno will finish the job.

The experts do this type of fitting all the time so they would be able to do the job a lot quicker, and if something were to go wrong it would be covered by warranty.

Tuning the vehicle is going to cost a bit more than $150. 2-3 hours is about the right time but I think you will find that they would charge closer to $100 per hour.

Wayne
AnswerID: 229442

Follow Up By: Wayne (NSW) - Saturday, Mar 24, 2007 at 12:46

Saturday, Mar 24, 2007 at 12:46
Hughesy,

As far as the warranty goes and fitting it yourself.

Just check that you might have to have a mechanic fit the turbo get the warranty.

Wayne
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FollowupID: 490219

Reply By: Member - Toolman (VIC) - Saturday, Mar 24, 2007 at 11:35

Saturday, Mar 24, 2007 at 11:35
Hughsey,
FYI, I have an AXT after market turbo on my 80 series (a Garret Turbo) and it is water cooled. I have had no problems with overheating at all and I've towed a 1650KG caravan for around 12,000km since fitting. This is with the original cooling system totally untouched. I wasn't nursing it either. TheTurbo was fitted by AXT.

Toolman
AnswerID: 229446

Follow Up By: Mobi Condo - Saturday, Mar 24, 2007 at 13:18

Saturday, Mar 24, 2007 at 13:18
Howdy Toolman,
Real keen to get your hard facts & figures re your AXT Garret on 80 series - we are due next Monday (26th) to have ours done! Have hummed & harred & read forums and asked people for two to three years on the matter and now have it booked to do. Do you get better economy with the power! I have been told all sorts of stuff "Should" happen but you are right on the vehicle and Turbo type to ask more.
Cheers - Mobi
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FollowupID: 490223

Follow Up By: Member - Toolman (VIC) - Saturday, Mar 24, 2007 at 17:36

Saturday, Mar 24, 2007 at 17:36
Mobi,

Happy to answer your questions.
Do I get better economy with the turbo - NO!
Do I have more power? yes its like having an extra gear.
I am a very pedantic record keeper on fuel economy so I have very good idea of the difference.

Pre turbo I got 12 litres/100km
Post Turbo 13.5 litre/100km
Towing - I can't say because I didn't tow with this vehicle until the turbo was fitted but with it fitted over 10,000km trip I averaged 19litres/100km. My worst was 22.53litres/100km and my best was 18.03litres/100km.

My previous naturally aspirated 80 series averaged about 18 litres/hundred towing but that vehicle was not a constant 4WD and I was towing a different van.

Other observation I'd make are:
AXT were very good to deal with and I have no complaints 2 years later.

There is a noticeable increase in power under normal conditions with the turbo but the turbo has a power band between about 1900rpm and 2200rpm. Outside that power band it seems to have little or no impact. I am disappointed that on sustained up hill runs the vehicle dies away more than I expected. It is still better than pre-turbo but don't expect miracles. I am sure the factory fitted turbo vehicles are much more powerful and have better fuel economy.

I fitted a snorkel and that makes no difference to the performance not that I expected in and thats not why I had it fitted.

I will be putting a 2.5 inch exhaust on it soon so that it breathes better, which may help with more power at lower revs. I am not sure how much more.
AXT reckon an intercooler will make no difference.

I am also looking at getting my injectors checked and probably replaced because I can't recall them being changed since I got the vehicle new.

If I had my choices again would I get it turbo'd again? yes , compared to what I had there is significant improvement with the turbo and no apparent detrimental effects other than a minute increase in fuel usage. But If we're talking about wisdom in hindsight, I would always opt for a factory turbo'd vehicle over an after market one if I could afford it.

I hope that gives some answers.
Toolman

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FollowupID: 490248

Reply By: Member - Luke (SA) - Saturday, Mar 24, 2007 at 16:45

Saturday, Mar 24, 2007 at 16:45
Hughesy

I put a turbo on my naturally aspriated 4.2 diesel not that long ago, was very easy and would do it again.

I put a post on here telling of my experience. 41768

Cheers Luke
AnswerID: 229474

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