Has anybody installed a turbocharger; if so what were the net power gains?

The only aftermarket forced induction I know of is the supercharger from tone monday ... and I don't know if it is real/available.

...And good luck finding a place to stick that thing...

Why do you want a turbo on a gasoline truck? No power when you need it on the trail and then have it suddenly kick in at the wrong time?

That being said, a turbo will always make much more hp than a supercharger at a given boost - you free up 40 or so horses required to spin the blower.

Basically any turbo will work on any engine if you can set-up the correct plumbing.

eh.. a turbo on an xterras engine would work in theory- but just not practical. even a small turbo would boost too high in the rpms to do you any good offroad.. even onroad the top end would be crap due to how heavy the X is.. by the time you reached full boost you'd be at your shift point.. which is pointless. best bet on these motors is a supercharger- power all the time.

but then again.. me and turbos dont seem to be getting along lately since ive blow out my 2nd bottom end in the past 3 months.. something tells me i should turn the boost down

Can you imagine spooling up a turbo why trying to crawl over some rocks? I can hear the coversation in my head "just a little more gas, little, little, HOLY SHIT!" as i launch over the rock when my boost goes from 5psi to 20psi and i gain 50hp...

Great idea if you want a street only X. Try something small like a T-37...

superchargers for the xterra are always on ebay, they go for pretty cheap too (150-170)

supercharger

I was thinking a Turbo for an Xterra Might actually be good. Using the Double Sequential turbo or what have you, would virtually eleminate Turbo Lag, and a 10psi MAX on a stock motor would be plenty of power.

A TDO5H on my honda spools about 3.5K and your talking roughly 12-15psi. now if i remember correctly those double sequentail turbos would put you at full boost around 1-2K. and the way those turbos work is that they basically have two impellars(SP) one for low RPM range that keeps you spooled at idle safely, and then opens up the second impellars(SP) at high RPM. None the less reaching peak Boost Around 2-3K. Now 7psi would rock you in the Xterra, and would definatly give more HP than a supercharged motor.

To each his own, but Turbo technology has come a long way, matter of fact I think it is Bully Dog that puts those double sequential turbos on their stage 5 kit. Bully Dog isnt the only one using them.

If I had the time/money/Extra Xterra I would say testing a HomeMade turbo kit isnt a bad option. See what is better. Smaller VS Bigger, Single vs Dual, REgular VS, Double. It would be great to see.

The comment about 5psi hit the gas and be at 20psi is irelavent, put a boost controler on it and leave it at say 5psi. I would say a turbo is not very effeciant for rock climbing though. But Hands down has the best tourque advantage.

I doubt Jim Wolf Would Help us out in the range of the might 4x4ers, But I think he would open himself to more buisness if he helped the 4x4 crowd.

Actually, I will have to differ with you on the "hit the gas and jump 15psi", it would make a huge difference. Ever seen a dyno sheet on an MKIV Supra? no power until 4k (225hp) then by 4500-5000 they jump to 500+whp. That's huge and because of that they have launch problems and clutch problems, imagine that while towing... T

orque advantage to a turbo over a blower? I wouldn't put my money on that one.

As far as twin turbos... that's a stretch on the X as you would have to find a good way to dissipate the heat to avoid detonation. Far worse a problem with a turbo than with a charger.

7psi is close to what the charger puts out on the Xterra - it doesn't 'rock you', in fact, in my mind, a VG33E must be absolutely gutless because i find that my X isn't exactly quick and sure isn't a badass in the torque department.

What i meant to say was imagine that while offroading... ooops

Also, one thing to keep in mind is that a roots style blower is far superior to a turbo in the torque category. I don't see why you wouldn't just port a factory M62 and slap that on your X. In fact, I have thought about picking up a spare from Ebay for $150 and porting it to see the difference in boost it makes. I am sure the factory motor should be good up to 15psi.

perhaps we can agree to disagree.

I never said rock climing you would want a turbo. Perhaps in Beach/Baja it would be nice to have.

The supercharger may make 7psi but it is used ineficantley. 7psi on a turbo and superchager is FAR different. 40HP difference with the supercharger. A turbo TUNED corretly can surpase that number. Also End with more tourque. Than a STOCK Supercharged car. You dont have the turbocharger taking power to make its power. More Effeciant.

Intercooler will solve most of your heat issue. I still fail to see how a supercharger that takes power off the crank is far superior than a turbo.

Banks uses the turbo i was speaking about. And there are some smaller turbos that would do the same thing. A/R ratio is what gives peak boost.

A Supra is one variant of the turbo game. You could manipulate and play with diferent manifolds turbos until you built a no lag setup. it has been done.

Im not saying as far as practicality, there is no way a turbo would be usefull in the rocks. Although someone in WildYoats built a 4Runner with the Supra TT motor.

The Battle will rage on Turbo vs. Supercharger. Just dont confuse or misconstrue what i am saying. All Turbo setups are different. MY CRX turbo spools at 3K when the same turbo on my brothers Talon spooled at 3.5-4K. Its diferent variables. Different manifolds. Like i said if i had the time/Fab/Extra X. I would Build a Home MAde setup and see what is more beneficial. Thats why most car companies and performance companies are switching to turbo designs. The make a Sick amount of power.

As an Example. Just take a look a drag honduhs. They run 8 seconds with HUGE turbos, not roots style blowers which are made for Hondas. The Same with alot of the classes in NHRA besides the drag/Funny cars. Although AEM made a Drag car and it used the Supra Motor, Turboed. They Make HP Cheaper and they dont take HP to make HP. Limitations of the Pulley on the Supercharger and the fact that it spins by the power of the crank. Not Wasted Exhaust.

Now I know there are some people that could defend both sides. My point is that a TurboCharger would not go from 5-20psi with the slip of the throttle if tuned right.

Also It always depends on the aplication, and what you will be using it for. Again I AGREE teh TURBO has no place on a Xterra the Rock Crawls. But a Nice 2WD Beast would sure be fun.

Some REading Just on Our Forum of Turboing an X.
Turboing an X
Turboed FrontY

A turbo would help with towing on a hill, spinning the tires in the mud / snow, and would make passing on the freeway easier.. mainly with the bigger tires some people are using with stock gears..

He wasn't talking about double turbos I don't think. He meant the variable geometric turbo. It is an all in one turbo that opens and closes viens in the turbo that changes as the gas pressure changes. which means that there is no turbo lag. and look at the disels that push 1000 ft pounds of Torque and 500 horsepower just from a turbo upgrade.

http://www.racerwheel.com/tp-11520007.html

Have you?

You could probably use the exhaust manifolds off a Z31T and the stock T3 from a 84-87 Turbo, or a hybrid T3/T4. Many Z31 guys get ahold of the VG33E for the 10% increase in displacment, and drop it in. But there is no point in turbocharging your Xterra. You could give me your VG33E so I could make good use of it in my Z.

I drive a 3000GT VR4 so I have some experiance w/ turbo's. So here's my opinion on this subject

Your net power gains wont be at a low enough rpm to help you when you're crawling around a trail below 10 mph........unless your in 4WL. Then in that case your MPH/RPM ratio will be to small to dissipate the heat the turbo is producing, even if you have a intercooler.

Now if you want one for on the highway passing or towing it's a great idea. The power gain would be were you need it and the airflow across an intercooler would be more than enough to keep you detonation free (granted you're consevative with the boost level). And yes a turbo will give you more of a power return than a supercharger.