Should i get a turbo or a supercharger? - Page 2 - Jeep Wrangler Forum

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Old 09-15-2012, 04:27 PM   #31
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Go turbo! I may be biased though, since I have one.
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Old 09-16-2012, 10:52 AM   #32
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Quote:
Originally Posted by damndirtydog View Post
RIPP, what's the longevity on a supercharger? Any negative aspects to internal engine parts over time?
Glad you asked.

As long as you keep up with the oil change interval, it should be upwards of 100k miles. We have Supercharged Jeeps running around with over 100k miles with no problems.
Upon disassembly of our orginal 2008 JK with aprox 35k supercharged miles, we found the internals of the 3.8l more than up to the task of forced induction. The rods were "beefy" with oil sqirters when compared to it's mini van brother. Also, the piston skirts were coated with a low ring landing.
I think I need to mention that we designed our system with reliability of your vehicle in mind. We like to think of our system as a "Jeep part". We know the limits of the 3.8L and we made sure that the power levels that our system provides is nowhere near them. Peak potential power does you no good if you throw a rod 15 mile form nowhere.

RIPP

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Old 09-16-2012, 12:27 PM   #33
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Quote:
Originally Posted by RIPPMODS View Post
Glad you asked.

As long as you keep up with the oil change interval, it should be upwards of 100k miles. We have Supercharged Jeeps running around with over 100k miles with no problems.
Upon disassembly of our orginal 2008 JK with aprox 35k supercharged miles, we found the internals of the 3.8l more than up to the task of forced induction. The rods were "beefy" with oil sqirters when compared to it's mini van brother. Also, the piston skirts were coated with a low ring landing.
I think I need to mention that we designed our system with reliability of your vehicle in mind. We like to think of our system as a "Jeep part". We know the limits of the 3.8L and we made sure that the power levels that our system provides is nowhere near them. Peak potential power does you no good if you throw a rod 15 mile form nowhere.

RIPP
Thanks. Seriously thinking of getting one down the road after I get the jeep paid off.
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Old 10-10-2012, 08:32 PM   #34
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all in all...... nobody explained pro`s & con`s for supercharger or turbo.. all I see is someone trying to sell products either way!!!!!!!
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Old 10-10-2012, 08:41 PM   #35
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Originally Posted by Farnham21 View Post
Ew s2000 why would you do that to yourself
Don't know if that is a serious remark, but it is one of the best production driver's cars for the money, much less fully built like mine is. Hard to hit a racetrack with a Jeep.
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Old 10-10-2012, 08:45 PM   #36
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Quote:
Originally Posted by lirider75 View Post
all in all...... nobody explained pro`s & con`s for supercharger or turbo.. all I see is someone trying to sell products either way!!!!!!!
Ummm...I think this thread summed it up nicely.

Turbo

Pros:
More power
More torque
Not parasitic
Better MPG
Low end power

Cons:
Costs more
Heat

Superchargers

Pros:
Price
Limping home is easier

Cons;
Linear power, if the vehicle has nothing down low stock, it has nothing down low blown.
lower power
lower torque

Reliability is a myth. People say superchargers are more reliable than turbos when comparing a $5000 supercharger kit to a $5000 turbo kit, which isn't a fair comparison. Both can be made to be EXTREMELY reliable, but the turbo will cost more to engineer properly.
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Old 10-11-2012, 11:10 PM   #37
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Quote:
Originally Posted by NFRs2000NYC View Post
Cons;
Linear power, if the vehicle has nothing down low stock, it has nothing down low blown.


Reliability is a myth. People say superchargers are more reliable than turbos when comparing a $5000 supercharger kit to a $5000 turbo kit, which isn't a fair comparison. Both can be made to be EXTREMELY reliable, but the turbo will cost more to engineer properly.
I think you need to re-examine your facts on the cons.

As a past builder and installer of many turbo systems, including our own 600+ whp FWD 1.8L Acura Integra IDRC campaigned race car. We know that unless it extremely well engineered and designed (read Expensive) and professionally installed (expensive again) it has no place in a back yard do it yourself jeepers hands.

Our system is not marketed as the most powerful on the market, it is marked as what your vehicle SHOULD have HAD.

Our use of a Vortech V3 SiQ trim SC, which has a rated capacity for over 600hp, and a Diablosport tuner that does NOT leave you locked into a tune if you choose to further expand power ratings. (do at your own risk)

We aired on the side of reliability over power, price over punch, ease of installation and maintenance (no special tools required and a 6-8 hour install time).

Turbo's are great, they really are, but WE feel they are not the best option for a Jeep. Why we designed our system the way we have.

RIPP
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Old 10-27-2016, 12:20 AM   #38
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Quote:
Originally Posted by BakedInMN View Post
I've had experience with forced air induction (both stock and aftermarket).

Turbo's do have some lag, but they do not rob power from the engine. Superchargers take power from the engine to create more power. In my experience, you will get a noticeable increase in HP with as little as 6 - 8 PSI, but it may not translate into noticeable torque gains in the RPM range that you need it.

Looking at dyno sheets from the Pentastar engine show a very flat torque curve that comes in at a relatively low RPM and stays there for nearly the full RPM range. For serious off road capability you want your torque available down in the low RPM range. HP isn't as important. I would have to see dyno sheets to be able to compare stock readings vs Supercharger vs turbo.

As far as being able to pull the supercharger off with normal hand tools, you can do that with nearly every supercharger I'm familiar with. The only issue you will run into is reprogramming the fuel tables. If you are running forced induction, you need more fuel to prevent detonation due to the higher compression. Most forced induction tunes are very rich. The tunes that I've had in the past, would probably cause the plugs to foul, and cause the engine to stop running (no serious damage, just not able to get a hot enough spark).

Temperature is a drawback that both turbos and superchargers exhibit. When air is compressed, it heats up. It doesn't matter if it is "preheated" as recirculated exhaust (Turbo), or pushed through a supercharger (with intercoolers, CAI, etc.). It get's hot quickly when you tap into the power. I've had my EGT (Exhaust Gas Temperature) rise 500+ degrees in a matter of seconds when I would get the supercharger fully producing power. Superchargers and turbos don't continuously produce their max power. The amount of forced air produced is directly related to the amount of vacuum in the system. During regular driving you aren't pushing the gas pedal to the floor (creating max vacuum in the engine), so the actual power produced by the turbo/supercharger is minimal to non-existent. If you've got your foot buried in the floor pan, you should have a very high vacuum, and the additional power from the turbo/supercharger will be applied.

A lot of compression with not enough fuel = very expensive engine damage. You would also want to consider changing out internal engine components (i.e. pistons, rods, etc.), to prevent the possibility of failure. Blowing a hole in a piston, bending/throwing a rod are common causes of failure in forced induction engines.

There is no such thing as cheap bolt-on power. If you really want to play with the big boys, you need to be willing to drop some coin into the project.

The decision of turbo over supercharger will depending on what your goal is, and how much you are willing to spend. The heat issue is actually going to be about the same regardless of your choice. Cold Air Induction (CAI), intercoolers, etc., will all help keep temps down, but it all depends on how you use it.

If you're going to spend the money on a supercharger or a turbo and do it correctly... upgrading headers, pistons, seals, etc.... why not just do an engine swap? Buy the 4.6L with matching transmission. Most high end off road shops can get you swapped out and rolling down the road with a 4WD burn out for less than 20k... Engine, Matching Tranny, and Gear changes.... probably wouldn't be a bad idea to upgrade to Dana 60's at that point too if you're going to run anything bigger than 37's... but you can get by for sure with front and rear danna 44's

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