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Leonexx812 03-26-2011 04:01 PM

I need Info on adding a turbo to my vehicle
 
Im just asking other members who have done this or know a little about it.
I know nothing on how to do it, how much it would cost but i wanna learn.
So if someone here could enlighten me on cost and what it would take whats the best turbo id greatly appreciate it :D

and supercharger if anyone has done it :)

jeepgcoman 03-26-2011 08:39 PM

Re: I need Info on adding a turbo to my vehicle
 
If it were me, I wouldn't waste my time and money. The stock 5.7's are not built to withstand any significant forced induction boost. Enough boost to do you much good would destroy the pistons, because the top piston ring land is too close to the top of the piston. There are many other hurdles you'd have to get by too. You may want to do searches of some of the other DCX (Dodge, Chrysler, Truck) forums, as to cost, types available and other potential pitfalls. Many have done it with some succcess, and many have blown engines too.

If you're wanting to supercharge, you'll need a complete exhaust system (headers back) before you tackled the supercharger. Also, the fuel management system and PCM would have to be custom tailored to provide a richer mixture in all ranges for the forced induction.

If you're planning to turbocharge you encounter many of the same problems, plus you'd have to find a place in the exhaust path to put the turbocharger. It's too tight in the engine compartment (without significant modifications) to put it where it should be. I've seen them mounted as far back as behind the rear wheels on some vehicles.

IMO, to do it right you should build a "blower motor" with forged, low compression pistons, big valve ported heads (or 6.1 or Eagle), different camshaft and, again the complete exhaust system. You should also improve the RFE545 transmission, and put a higher stall speed torque converter into it.

A better, cheaper, less invasive way to go, IMO, would be a nitrous oxide (N20) injection system. You still have modify the fuel management system, but this system has proven to be quite successful when using a 100 hp or less "pill" in the system. No other major mods. are required but, again a good exhaust, intake and camshaft would benefit the power output significantly. A buddy of mine used this setup (with bigger heads) in his 5.7 Hemi LX and it shaved more than a second off it 1/4 mile time, and the additional power was there at the flip of a switch. Plus, if you looked under the hood, you couldn't tell it was there without looking very closely.

robpp 03-27-2011 08:10 AM

Re: I need Info on adding a turbo to my vehicle
 
^^^^^^^^^^^ IMO, most of your post is not correct. Go look at the LX forums. LX (charger, 300, magnum) all have the EXACT same 5.7/

Many have superchargers on stock blocks and have zero problems. a few have turbos.
if you have the proper tune and keep the boost levels around 5-6 PSI they get allsorts of life out of the 5.7.
lots of the makers of these S/C even give 3/36 warranty if you have no other mods and use thier tune.

I would be MORE cautious with nitrous. get a leaky solenoid and POOF.




read about one makers warranty: http://www.vortechsuperchargers.com/product.php?p=145

Leonexx812 03-27-2011 08:23 AM

Re: I need Info on adding a turbo to my vehicle
 
I completely agree with you rob.. i just didn't know where to actually post this topic and i just wanted to get someones ideas/thoughts on this. i have been doing a lot of research on this particular subject and i thank you guys for giving me your opinions and thoughts i greatly appreciate it.

and i didn't know that the 5.7l engine is in all those vehicles i will be looking at that forum.

Scottina06 03-27-2011 10:06 AM

Re: I need Info on adding a turbo to my vehicle
 
give a look into north coast turbo systems in OH. they were a vendor here for awhile.

robpp 03-27-2011 10:26 AM

Re: I need Info on adding a turbo to my vehicle
 
Quote:

Originally Posted by Scottina06 (Post 383795)
give a look into north coast turbo systems in OH. they were a vendor here for awhile.

agreed scott. i would also seek out member 'escape' and see how he likes his turbo from ncts.

and speak to Harrison from Stage 6 a current vendor here about turbos.

robpp 03-27-2011 10:30 AM

Re: I need Info on adding a turbo to my vehicle
 
Quote:

Originally Posted by Leonexx812 (Post 383765)
I completely agree with you rob.. i just didn't know where to actually post this topic and i just wanted to get someones ideas/thoughts on this. i have been doing a lot of research on this particular subject and i thank you guys for giving me your opinions and thoughts i greatly appreciate it.

and i didn't know that the 5.7l engine is in all those vehicles i will be looking at that forum.


most of the systems may need WORK to fit the jeep but maybe not that much. main diff is the intake usually goes towards the DS on lx and PS on Jeeps. i know some 6.1 jeeps MOVED the battery to allow a techo s/c. muellge another member here has that so things can be moved out of the way to fit an lx based system too.

more important than the system might be the tune.

jeepgcoman 03-27-2011 01:00 PM

Re: I need Info on adding a turbo to my vehicle
 
I believe Leonexx812 just wanted a little "enlightenment" about forced induction systems, along with approximate prices. What I posted were my opinions and experiences in this regard. As one of the early members of the LXForums (magnuman, July 04), I have seen how the supercharger installation process has developed over the years on our Hemi engines. Yes, at 5 PSI (a very low boost pressure) you would probably be safe but the cost (I'll bet close to $5000+ by the time you're done), to me anyway, would be way too high for the benefit gained. And, it would still be nearly useless without a complete header back exhaust makeover. I know first hand that is not cheap. And, while you're at it, a higher lift, longer duration cam would also aid the overall power output. This, along with the heads, and the effective/efficient movement of air through the engine are all parts of what make up the volumetric efficiency (VE) of any system, normally aspirated or supercharged. The higher the VE, the closer you get to maximum efficiency. With a low overall volumetric efficiency (stock ours is probably in the neighborhood of 80%), which you'd have by just bolting on a supercharger, it would just not be worth it, IMO. Do half the job and you get half (or less) the benefit. This is why I recommended he check the other forums, so he could gather more information and make the best decision for him. I think we've all found, when we do our mods., that one thing leads to another, and another, and another. If it were me, which it's not, I'd be more inclined to do things in a more systematic order to reach the end goal.....i.e. intake, complete header back exhaust system, cam and heads, fix the transmission/torque converter and then, if you don't want to mess with the rotating assembly, supercharge.

As far as the N20, anything is possible. My buddy has run it for more than 4 years on his LX, without issue. Problems can, and will arise with any system. Look at our WK's without any mods, and all the supposed technology that has gone into its development. Bottom line.....to each his own.


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