GUIV 4.2TD 20% power gain/2.5"exhaust?

Cant comment specifically on the advise you have been given, but, I can tell you that I had Turbo Glide fit a Turbo kit to my previous vehicle (80 series) and they guaranteed me a minimum of 30% improvement across the board and when the compared the dyno figures after fitting and fiddling to the figures before they started, I actually gained 48% in Kw and 50% in torque.

Gotta be happy with that.

I found them to be very knowledgeable and very friendly and their workshop is spotless.

Hope that that all hepls in some way.

I don't doubt for a second that they could get 20% more power with their setup but why settle for that, if you are going to increase power then get as much as you safely can. The 3" system with dump pipe will allow you to do more and get more power if you want it.

If you work yours hard does the temp gauge move now? my belief is they all have this tendancy and it is nothing to stress over so long as you are vigilant not to let it get too carried away.

Talk to as many turbo shops as you can so as to get a balanced view from "the experts". In the end it is your decision but I would not swap my setup for all the tea in China. (I was going to say..."I would not swap my 3" setup...." but then I thought this left me open for attack LOL!!!!) Any gain around 20% or more will put a smile on your face but more is better IMO.

Good luck, regards Trevor.

Good luck.

The dump pipe on this system is a hell of a restriction, prevents the turbo from spooling up quickly and you will not get power from lower in the rev range.

"He recommends not doing anything that could make the truck run hotter." This set up will make your engine run hotter.
I have run tests with my truck and a mates. I have had the bigger exhaust, dump pipe and turbo fitted, he has had a bigger exhaust, dump pipe and fuel adjustments done, the EGT on mine is 225-250 degrees F lower than his after test runs over the same stretch of road etc. I am fractionally slower over the same stretch. Not very scientific, but real world and valid data.

I have gone from 72 kw to 120 kw at the rear wheels.

Can Turbo Glyde provide EGT data for this set up verus a standard set up?

It certainly sounds cheap enough, but, in my mind, 3" and bigger dump pipe is the way to go.

Hi there Babs,have not had turbo fitted myself but have spoke to John at turbo glide and seems to know his stuff. Did you ask him how long he has been in the game for ?? some thing like 30 years so I would think he would know the answers to all your questions. My wife has had 3 customers of hers who have used turbo glide and swear by them. Service, knowledge,and care taken was the main comments which is the best advertising you can get. There is another mob (not westend diesel) that are very common mob but after speaking to them would not use them or recomend them. Shame your not a member other wise I would send to you who these people are with out advertising on here. At the end of the day you want something that is going to go well and still be reliable with out causing any damage to the engine. Steve M

Babs, yes, his runs a lot hotter than mine and yes it is a hell of a problem. MTQ is the turbo I have. Lots of different ways to go with pipes etc etc. As I said, good luck........ :-)

have a look at the differences. there is massive restriction.

The larger outlet also changes how fast your turbo spools up, if you would like more power earlier, then the 3inch would be better. if you dont care, then go for it. price sounds ok. but you would hate to go the 2.5 only to want to change in a few mths.

so for $1090 you get an exhaust, and a pump tune? very expensive exhaust for not a complete system front to rear with mufflers, and a dump...

You will get a 3inch system for same price elsewhere (even beaudesert will cost that INC a dump in 3inch), and go the pump tune for fraction of the cost, which should be all it costs.. surely 1/2 an exhaust system isnt worth more than $600?

Hi Babs,

I had a couple of local places here in Tamworth NSW do the 3" exhaust, dump and tune late last year. I have a 2005 4.2TD that was putting 95 hp at the back wheels. It now puts 115 hp at the back wheels. The exhaust is made locally ( all mangrel bent) by The Muffler Man and the dump is supplied by DieselCare. I paid about $1200 for the work and I am very happy with the results. I have not observed any increase in temp gauge even with some days here in recent weeks being 40+ degrees.

Hope this helps

Cheers

Babs
Beware....its a known problem that the td6 has a small turbo that restricts the exhaust getting out when on song......the turbo works on a pressure drop across it, make the exhaust larger, and the drop increases, therefore the turbo will boost earlier and faster. The dump pipe is the first thing after the turbo, where the gasses are flowing fastest, it needs to be biggest...as gas goes down exhaust, it cools and reduces its velocity, so u can reduce size further back.
More fuel equates to more heat. simple physics....dont increase it unless you put a bigger turbo on.
Whatever pressure you have in the inlet manifold, is also in the exhaust manifold driving the compresser....dont boost up too much, unless you also pay attention to all the restrictions....so in sumary, get a quote from someone to have a dump pipe made with 3 inch back to the rear diff muffler or further, t/d's are not noisy anyway.....clean up the piping to the intercooler and put a larger turbo on the motor (safari) and you will have heaps of power without heat.

I whacked on a 2.5" on the surf (it has a 2.5" dump from factory) with a lukey performance muffler. Twas ok, but recently I removed the muffler all together and just poked the pipe out the side behind the rear wheel - Now that made a difference, bloody huge difference. I'd recommend that to anyone and it only cost $80 bucks to get done at the local workshop!! Bloody fantastic now, it doesn't drop out of torque lock all the time while crusing through hills it just sits at 2000rpms and rumbles along nicley.

Hi Babs,

I just put a turbo, intercooler and 2.5" exhaust on my standard 100 series 4.2D Landcruiser and it runs a treat. Off the dyno the power went from 52.1kW to 108kW and the Torque from 440.2Nm to 925.4Nm. All this increase can be directly attributed to the combination of the turbo, intercooler and the 2.5" exhaust. The figures you were quoted for a 20% increase in power for the exhaust is about right, albeit a little on the high side. I also agree with the 2.5" exhaust as opposed to the 3". The figures that I researched could not adequately prove a noticeable power gain with the extra 1/2 an inch, however if you racing your machine then go for the bigger exhaust to get every advantage you can. The 2.5" mandrel bend exhaust also fitted better as the 3" pipe, in some cases, came very close to contacting other parts of the vehicle. I paid around $950 inc GST for the exhaust - fitted and tested (on the Dyno). I'm in the ACT and shopped around for the best price and advice in Sydney and S.E QLD and the local guys did the best job.

That's my experience - hope it helps.

Good luck

Lock*

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It won't matter what size pipe you put on the truck......it won't "give" you anymore power. The only way this all works is by the re-tuning and boosting the fuel delivery. It has to be done as a package.
The mechanic said he could g'tee you 20% increase just by upping the fuel and putting a 2.5" pipe from half way back, is probably telling the truth.
If you just bolted on a 3" dump pipe and exhaust system (without doing anything else), you won't experience any change in performance.
The idea is that you free up the exhaust system to be able to cope with the extra neddies being created by boosting the fuel and maybe the boost pressure etc.
Then, the limiting factor is gunna be the size of the turbo. For less than the amount of $$$ being mentioned above (ie $4 grand), I would highly commend the Denco turbo upgrade, which involves a new, bigger Schwitzer turbo, matching dump pipe and exhaust etc all for about $2700-.
I am not in favour of the MTQ upgrade as that one involves boring-out the guts of the original turbo; has to make it weaker as far as I'm concerned.

These are just my own personal experiences.

Cheers

Roachie