Thanks for the heads up, Ill look into that.

Weasy, Would the crushed FPR mod work on these engines?

 

It would and wont....

Notice that the above example (the first one) was taken at 90PSI...that is more then you would ever really see....that would really stess the pump as well that is why toyota set the internal relief to 85psi (thanks toysrme)

So even if you did get a higher FP then you still would be over runing the injectors....the easiest swap would be to get toyota GS300 injectors or the 93-97 N/A injectors....they are around 310-330cc...while your at it grab the MAF from the same engine and you got a even increase

 

Well, we have the option of reducing the stock PSI that the gate opens at. What PSI would you reccomend non intercooled for everyone without fuel mods for the 5VZ? I ran around for 7 months with 8 psi intercooled (5VZ twin turbo) and have had no problems. I guess the knock detection is just THAT good?

 

Most people with the trd S/C goto the 5psi pulley...that is probably a good MAX psi to go to...even ther eyou are hitting at the 80% level.
That should yield approx 250bhp (200whp estimated)

 

That is plenty and might prevent the need for doing tranny mods too (as long as you don't leadfoot it all the time). Once you start needing bigger injectors, fuel pump, MAF, etc.....it begins to look less attractive to someone like me who wants an enhancement at a decent price. Then I'd assume the wastegates are adjustable so if you really want to turn the truck into a rocket, you can......but expect to pay for it too. I personally am looking for a great bang-for-the-buck and reliable way to add some decent HP and torque, but others may be after something quite different.

I hope I am not making this too complicated for you engineering-wise (to make all these parts interchangeable).

Quick question....how reliable (ie failure rate) are the fast spooling turbos?
What kind of maintenance do they require and how often?
What would be the max boost you could produce with one?

Just curious.

 

I'm in the same boat as Jamie. I'd like more power but I don't need a drag racer or a truck that will go 140 mph on the freeway. It would just be nice to have the ability to pass on the freeway when your truck's loaded or just get that extra umph when getting on the freeway.

Once you go to fuel mods (probably close to $1k additional including tuning), I lose almost all interest. I'm looking for a system that's $1500 total, nothing more but hopefully less. I think I would enjoy $5k into a sound system much more than 300 to the wheels.

 

If you stay around or under the $1500 mark you would sell a boatload of those.
I would love to get into the 275hp range myself without fuel mods.

 

I would bet 250HP crank HP is about all you'll get without doing fuel mods.
You'll be paying alot more to get from 250 to 300+ HP.

.....keep in mind 275HP is a 50% gain over stock, that is huge.

 

i would have to agree with the past few posters, when one starts talking about fuel mods, tranny mods, etc. i also loose interest. I want moderate gains but not a truck that could race. if this could be accomplished at a resonable price (1500 or so sounds great) I would def. buy one.

 

Ditto here. I don't want to deal with tuning, or things of that nature. If it's going to be too much of a tax on the stock fuel system to throw a turbo on, and get some decent gains, then I'm out. However, if there are decent gains with out modifying the stock fuel system, I'm all over it like a fat kid on a cup cake.

It'd be nice to see what the stock fuel system is capable of with the turbo. I know the supercharger system didn't work too well with the stock fuel system, but that was becasue of the heat as i remember, right?

 

What...most 3.4l engines are say 183hp?...so a jump to 250hp would be a NICE increase. I can be happy with that.

 

amen, i don't know about the heat issues, but it seems (and i am no expert) that with more hp there was always the need for more fuel. plus, i like the idea of a switch that would leave the wastegates open so that i could select to turn the turbo on or off. that would be tits!

 

This is a very interesting subject

I am still not done reading the whole thread, but I don't understand why a T3 is even an option for the 3.4 motor. I understand you guys want fast spool but on a 3.4 it will be very fast IMHO, like a TQ spike. I would think a 50 trim T3T4 with low boost would be best bang for the buck and with 10psi I saw over 220whp on my 1.8T motor . 6psi out of a t3t4 50 trim on a 2.8L VR6 VW motor usually yields in the mid 200whp as well. Not sure what peoples goals here are specifically, but I presume quick spool and wide powerband without having to rev too much? And since this rambling is continuing, how are the transmissions addressed in these situations? Are the auto's more weak, I presume they would be, and is there any way to upgrade them without dropping ridiculous coin?


I think a local here was looking into the TRD package for his TACO (Never hear it called that before, sorry I am a newb to this forum, and I think that's pretty funny) and I was slightly probing him what all was involved as I am into F/I applications with VW's.

He mentioned that the kit comes with 317cc bosch injectors.

Well, the funny thing is that those are the stock injectors on a lot of 1.8T VW motors OEM. They have a really nice spray pattern for a stock injector and will be able to provide with enough fueling for most applications here I think.

Also, these injectors can be had cheap from the vw forums, I can help source them if you like.

Lastly, I saw several people use SMT (Perfect Power) systems for fueling and timing, I was just wondering is there a company that flashes the OEM ECU for these types of upgrades?

 

Nope... that that any of us has found. Well, there's the JET folks, but they're not really flashing anything but the stock maps - they're not adding programability to the point that the SMT or FTC boxes give you.

 

I guess I am just jealous as the SMT 6 unit did not work on my VW, but works on your cars Just joking. In reality it's actually better then a chip due to the tuning and on the fly tuning, so my question was more out of curiousity more than anything. I heard good things about the SMT 7 unit, but haven't seen them floating around yet. I heard about them being used on some SRT-4's and tested on some Japanese vehicles, but the VW usually gets left out due to the ECU incompatiblity

 

Any update on the 3VZE version?

As for all the debate about fuel mods, etc, with a turbo setup, wouldn't it be pretty easy to offer say three levels - one that works with all the stock setup, but doesn't make super HP, another with a few programming/fuel tweaks, and a full blown one that really pushes the limits of the engine components? I mean the manifold and the plumbing would all be the same, just maybe different turbo rotors, and then piggybacks, injectors, etc on the higher level kits.

 

sounds like a good idea

 

Just so we don't hijack this thread... Pop over here which is the main babble point for the SMT product line.

There's a PP rep on the forum (Johnny from Sea2Sky Tuning, here as "Weasy2k") and he may have some more info on the SMT-7 for you.

There's also a PP employee online (Neil). He pops in from time to time.

 

ttt - adding this to bypass character count...

 

Dang...this thread has almost 3000 views! Cha Ching!