[MOPWR2U]

a Rubi with 4:10's and 35's you wouldn't need to regear and save about a grand.Sent from AutoGuide.com Free App

Very true. No need to regear a Rubi with 4.10's and 35's, when running a V8.

Here is my 2013 JKUR with a 6.4 Hemi, 4.10 gears, and 35's.

With a WA580 auto transmission the engine is turning 2750 RPM at 80 mph in high gear, which is a good RPM for a V8. The 3.49:1 first gear of the WA580 is almost too low for most off road terrain when combined with the Rubi 4:1 transfer case gearing. So no need to gear lower for either highway or offroad. The auto transmission used with an LS V8 has an even lower first gear, and taller high gear, so would need regearing even less.

Once you get close to the 500 horsepower level, horsepower takes care of the rest. Gearing anywhere from 3.21 to 4.56 is fine. Other factors that are commonly discussed in relation to JK performance, like weight, aerodynamics, etc, don't really matter any more. Horsepower changes everything, and makes everything better. Horsepower transforms a JK into a world class driving machine.

 

[da20captain]

Your correct, stock gears work well up to 35's. We run 3:21's up to 32". Of coarse 37's or larger will benefit from gears, but with the 6l80's 4:1 low first gear and V8 torque it's not as critical. You can run stock Rubi 4:10's with 32"-35" tires with no need to regear. I got plenty of customers running 3:73's with 35's, makes a good highway gear.

35's work perfect with 4:10's. 4:56-4:88's with 37's. A 6.2 will pull 37's with 4:10's. Point is you don't need to spin the LS up like a 3.8 with 5:13+ gears. Notice the 5.3 in the video is holding 80 mph just fine uphill under 2,000 rpm with 3:21 gears. So if you had a Sahara with 3:73's or a Rubi with 4:10's and 35's you wouldn't need to regear and save about a grand.

We charge $5k for labor install. A new crate 5.3 will be in the $15-16k range based on options. We offer tapshift, HD radiator, scan gauge, etc. The 6.0 is turning out to be a good value, about the same price as a 5.3 it has 380 ft lbs of torque.

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What does the turnkey pkg starting out at $13k, you mentioned earlier, get you? I have a approval for supercharger but 13 could be doable maybe.

 

[Acey]

With you guys running Ripps, how many miles do have on your motors? I am just about at 60K and would love nothing more than to have to extra power of the Ripp, but am hesitant to put a Ripp on a motor with that many miles. I plan to keep my jeep for a long time and just dont know if i should hold out a few years for a ls or just get the Ripp in the next year or two. Thanks

I installed my RIPP Gen 2 Stage 2 SC on my 2008 Rubi when it had 38,xxx miles (2 years ago). Now at 47,xxx miles and no problems whatsoever. Very happy with my RIPP sc!

 

[mschaffer66]

What does the turnkey pkg starting out at $13k, you mentioned earlier, get you? I have a approval for supercharger but 13 could be doable maybe.

Turnkey for $13k? How that is possible. The kit is $7k, install is $5k, leaving $1k for engine and trans?

 

[planman]

Turnkey for $13k? How that is possible. The kit is $7k, install is $5k, leaving $1k for engine and trans?

Engine and tranny, $13k-$17k.

Labor, $5k.

Install kit, $5k-$7k.

Total turnkey, $23k-$29k.



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[TCdawg]

With you guys running Ripps, how many miles do have on your motors? I am just about at 60K and would love nothing more than to have to extra power of the Ripp, but am hesitant to put a Ripp on a motor with that many miles. I plan to keep my jeep for a long time and just dont know if i should hold out a few years for a ls or just get the Ripp in the next year or two. Thanks

my 2008 had 97K miles on it when I installed the RIPP. I have only had it for about a month so as far as longevity, can't say. I did all the research and spoke to a number of engine guys. My opinion based on all that was that the boost from the RIPP was not going to be an issue with my motor. Time will tell.

 

[Sgo70]

I got my engine and transmission with 18000km on it for $3000 which included any other donor parts I wanted, about $6500 for the kit because I didn't need some stuff included in the kit and saved the labor to do it myself which actually isn't as hard as you might expect. Even with install that would have been $14500 and I have basically a new motor and transmission.

Never driven a supercharger so I can't compare but even in limp mode (no intake or MAP sensor hooked up yet) 4:10's and 35's I feel like I already have more power.

Sean

 

[jkx0778]

What does the turnkey pkg starting out at $13k, you mentioned earlier, get you? I have a approval for supercharger but 13 could be doable maybe.

I was thinking the same thing. I'm guessing the $13k breaks down as:

$5200 for the kit
$5000 for the Labor/Install - and other parts that might be needed???
$2800 for used 5.3 & 6l80e

That's just a guess and hopefully MoTech chimes in on that.

My question is (I'm sure it's been answered a thousand times) what year 5.3 and 6l80 do we need? I see a 1999 - 2003 5.3's on craigslist for $500 to $1200 every so often.

 

[Chad_nc]

I saw a side by side comparison of the V8 vs SC engine a couple years ago on TV. They stated the numbers of the stock Hemi and the SC 3.8 were really close. Price was not. Install time on the two was totally different. I think it just depends on what you want out if your Jeep. Personally for me when I'm able I will be purchasing a RIPP kit for my 09 Sahara with 4.10's and 6 speed manual. I only want a little more power and better fuel economy. Not totally sure how I will feel about the SC whine but that's just part of a SC, no matter the brand or vehicle.


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[TCdawg]

Is anyone running a V8 on stock axles?

I don't think I'd have the guts to run a big motor on my D44's and 1310 DS U joints. Their are built but not to the point of handling that kind of power. I guess I could be wrong on this but when I think of a V8 swap, at least for me, I factor in D60's and 1350 driveshafts

 

[scubatech]

I was thinking the same thing. I'm guessing the $13k breaks down as:

$5200 for the kit
$5000 for the Labor/Install - and other parts that might be needed???
$2800 for used 5.3 & 6l80e

That's just a guess and hopefully MoTech chimes in on that.

My question is (I'm sure it's been answered a thousand times) what year 5.3 and 6l80 do we need? I see a 1999 - 2003 5.3's on craigslist for $500 to $1200 every so often.

Due to emissions requirements the engine must be of equal year or newer. They seem to be pretty affordable in the junkyards.

 

[da20captain]

"Contemplating a V8?Why spend weeks pulling the frame off your new chassis to put in an old motor
Why spend up to $25000.00 to have a shop supply parts and labor
Why worry about emission laws and custom exhaust
Why spend more at the pump, with our kits you can still use 89 octane
Why add 500 pounds to your Jeep
5.7L HEMI’s only make 270whp & 280ft/lbs of torque"

All right guys I got a chuckle out of this and think it's going a little too far.


Point 2: Our LS swaps start in the high $13's turnkey. To be fair most Hemi swaps are less than $25k.

Turnkey for $13k? How that is possible. The kit is $7k, install is $5k, leaving $1k for engine and trans?

In the original post it was stated that swaps start in the high $13's turnkey.

 

[MR LIKA]

"Contemplating a V8?Why spend weeks pulling the frame off your new chassis to put in an old motor
Why spend up to $25000.00 to have a shop supply parts and labor
Why worry about emission laws and custom exhaust
Why spend more at the pump, with our kits you can still use 89 octane
Why add 500 pounds to your Jeep
5.7L HEMI’s only make 270whp & 280ft/lbs of torque"

All right guys I got a chuckle out of this and think it's going a little too far.


Point 2: Our LS swaps start in the high $13's turnkey. To be fair most Hemi swaps are less than $25k.





In the original post it was stated that swaps start in the high $13's turnkey.

I'm pretty sure Point 2: is a complete ******* lie.:shitstorm:

 

[Jaybee1669]

I'm pretty sure Point 2: is a complete ******* lie.:shitstorm:

Don't think of it as a lie, think of it as a "Best case scenario".

 

[iadventure]

Well I have been running a 3.8 on 40's and 5.38's 6sd for a couple years with the RIPP. I have installed and run on a 3.6 as well with 4.10's and 35's auto.
I have also run and installed a Magnuson on a 3.8 with 40's and 5.13 auto.

Love the RIPP product. Easy to install and just works! It has added a ton of "pep" and torque for daily driving.

I as well love the Magnuson product. It is a HUGE improvement over stock!!

If money were no object than the saying "there is no replacement for displacement" would be my final opinion and I would have a 600hp V8 in my JK. That is just not realistic though for everyone.

In fact I will venture to state that any SC company would greatly appreciate a 600hp V8 in a JK.

The key for me in this whole discussion is what can a person afford to do on their jeep? There is a HUGE gap between a V8 swap and a stock engine cost wise. It would cost most guys every penny they have to spend on building a JK to just do teh engine swap. If that is how you want to spend it, GREAT! But the idea of getting a huge boost in performance and a lift, tires, bumper etc... for the same cost of jsut a swap, I can see that being a deciding factor.

$13k won't get you that 600 HP fully tuned swap, that I know of (correct me if I and off on that point). It is MUCH more $$ to get there when you consider everything involved.

The choice for many guys is keep stock motor or SC. A swap is not even an option. Because to really run a V8 worry free you need to have drastically upgraded drive terrain to handle it.

The "curse of contingencies" comes into play with a full swap...
I have never heard of anyone only spending $13k for a shop to do a swap and deliver a jeep that needs nothing else for 100-200k miles. Usually axle swaps and lots of broke parts later your into it for way more $$...

All this said, IT IS RAD to have that much power if you can afford it, I doubt any of the SC companies would dis-agree.

But most guys CAN afford 5-6K and are savvy enough to install a Ripp or Magnuson Supercharger themselves. With the amount of gain you get and how much more fun it is to drive and even tow a trailer up mountain passes, it is a no brainer. A speed freak may never quite be satisfied with a SC if they are used to a muscle car type power. Well, save your pennies and swap to a V8.

I can say the Ripp and Magnuson have restored the "fun" in driving the JK on 40's and allows me to effortlessly pull a 2000LB trailer all over the place. For the price I think it is amazing.

I don't think I will ever have a budget for my JK that will allow for a full swap. I think I am in the same boat as most. For 5-6K, you can't get a better value for price per HP from my perspective.

 

[mschaffer66]

I'd really like to know where people are finding these "dirt cheap" LS motors and trans. It seems like either the junk yard has high mileage stripped down glorified long blocks, or ebay has 600lb chunks of gold complete with everything you need.

 

[Cod]

I'd really like to know where people are finding these "dirt cheap" LS motors and trans. It seems like either the junk yard has high mileage stripped down glorified long blocks, or ebay has 600lb chunks of gold complete with everything you need.

^^This even the ones I seen were 9k and up for a slightly used one... reason I went new crate 6.2

 

[MoTech]

I'm pretty sure Point 2: is a complete ******* lie.:shitstorm:

Our base swap with a low mileage 5.3 and no options runs in the high 13's.

We charge $5k labor, $5,195 for the install kit plus the powertrain. A good iron low mileage 4.8 or 5.3 runs about $2,500 with a transmission. We add the upper exhaust, trans cooler and some miscellaneous items. With this swap we reuse the JK driveshafts, radiator, transfer case, rear exhaust, stock suspension and more. It is very similar to the 5.3 JK in the video; however, that JK had the BCM package which adds OE cruise control and electronic tapshift.

Anyone wanting to ship their JK to Vegas can fill out the builder form on our website and will be given a quote. Our installers around the country set their own price so these prices do not apply to them; although, we try to stay close.

The LS JK is not as new as most of you think. We have had JK's with LS's on the road for 5 years now, the kit has been greatly rationalized which has brought the cost down. We manufacturer all our own hardware, harness and electronics, the only outsourcing we do is powder coating.

We are constantly improving the kit to make it more affordable, the LS is awesome in a JK and we need to get the price point to a level that will open it up to the larger market, not just he guy with $20k disposable income - were getting there.

Our new integrated module has combined virtually all the electronics into one small package eliminating much of the redundant hardware while reducing the time to install the kit.

 

[SSrubi07]

Is anyone running a V8 on stock axles?

I don't think I'd have the guts to run a big motor on my D44's and 1310 DS U joints. Their are built but not to the point of handling that kind of power. I guess I could be wrong on this but when I think of a V8 swap, at least for me, I factor in D60's and 1350 driveshafts

I am running a Supercharged LQ9 (6.0) on mostly stock D44's with 37" km2's, have not had an issue yet in about 5k miles of highway use, and a few trips to the sand dunes. No rock crawling for me.

*By mostly stock, I mean stock 4:10 gears , stock shafts, upgrades made: inner sleeves, gusset's, HD ball joints and aluminum diff covers.

Issues I had in the past, we're breaking transmission output shaft by burning rubber on road, used a 300m one, and been fine ever since. Still burning those 37's


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[SSrubi07]

I'd really like to know where people are finding these "dirt cheap" LS motors and trans. It seems like either the junk yard has high mileage stripped down glorified long blocks, or ebay has 600lb chunks of gold complete with everything you need.

Try looking in yards that DON'T advertise in the net, prices are cheaper.


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