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Old 11-07-2019, 10:36 PM
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Sprintex turbo

Hi!
Iím looking for the first major upgrade. So far all mods have been done as more of a restoring reason.
Iím a petrolhead, have some other toys and the Jeep is really my first off-roader ever. My others have all 400+ bhp.... however, Iím considering the Sprintex since it looks like there is no alternative out there?
Anyone running this? anyone running alternatives? I donít want to go for a hemi engine swap. Most of my mods are under the hood anyway...

Thanks for your input already

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Old 11-07-2019, 11:27 PM
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I’d like to add on what I’ve done so far, engine wise

Flowmaster water pump
Magna Flow cat back street
K&N open filter.

I wanted to complete header and cat in SS.

Engine wise,
4.0l stick shift. 200k miles.
What can you recommend to do? Where to go for flushing DME?

gear ratio,
I haven’t touched my axles yet at all....wanted to do that afterwards..
I do have a Rouge x series lift kit and will most likely put a teraflex rear sway bar in to prevent body roll. Other than that, 30inch MT on standard rims. I’m ok with the look, I just want to get the engine/gears upgraded

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Old 11-07-2019, 11:27 PM
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*flashing DME... sorry
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Old 11-08-2019, 06:30 AM   #4
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The quickest way to grenade a 200k engine is to put any kind of forced induction on it.
Unless you are building a street racer the stock engine is more than able to do any thing the jeep can do safely.
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Old 11-08-2019, 07:38 AM   #5
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its a good idea to swap a paper air filter in. the K&N allows more debris through and the paper filters with an OEM intake/exhaust allows around 100 CFM more than the engine can consume at WOT.

note: if you do go forced induction, the CFM numbers may change.

always interested in ways to get more power but sadly most of them have serious flaws, drawbacks, or just pure snake oil.

if you're sticking with a 30" tire and dont have 3.07 gears you may be close to the ideal gear ratio already.
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Old 11-08-2019, 10:25 AM   #6
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Strongly recommend got rid of K&N grit passer and go to paper

If you want reasonably cheep forced induction a Buick/olds/monte Carlo junk yard super charger and mount kit but fuel mileage will suffer

Look for/search posts from cobramarty for details




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Old 11-08-2019, 02:04 PM   #7
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Old 11-08-2019, 06:38 PM   #8
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That's the one I'm looking at as it's for the 5 speed not the 05 or 06. I'm just concerned about heat here in AZ. I want to do the louvered hood but would rather find a used hood to cut up than my pristine stocker. I don't want to listen to a loud electric fan all the time like the JK's with the 5.7 magnum have to do.
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Old 11-08-2019, 06:54 PM   #9
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Btw... AFAIK there's no such thing as a sprintex turbo....
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Old 11-08-2019, 07:12 PM   #10
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https://www.wranglerforum.com/f210/s...665.html?amp=1


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Old 11-08-2019, 11:42 PM
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I understand everyone’s concerns and as usual, 1000 ways to rome.

Yes, the engine has 200k on it, we will take the Head down and do compression test.
Based on the result we either go and rebuild, considering Edelbrock head right now but for sure roller rockers.
Sprintex isn’t set in stone yet, i do like the way this unit comes but haven’t done much homework yet. Again, on the exhaust side i already have magnaflow and will complete this with cats and stuff. So far so good.

Once again, how do you guys handle the software? Is there an open tuner available? How can i do programming? This is the one thing that i don’t really get at all..

I haven’t touched the drivetrain yet at all. Neither trans.

For driving physics, i consider the teraflex rear sway bar. Let’s see if that helps bc right now body roll is to much for my taste.

We haven’t touched steering. All thought i do have a steering stabilizer in, this thing is absolutely chewy. Any recommendations what to do here?

Winter wont be boring...
Cheers
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Old 11-08-2019, 11:52 PM   #12
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in all honesty it sounds like you should probably sell the Jeep and buy a convertible sports car
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Currently in the stable: ... 97 tj 4.0 5 speed stock....04 tj 4.0 auto 4" and 33's... 98 tj roller for future build... 94 yj sahara 4.5" RE and 33's... 92 yj sbc 3/4 ton axles and 38's... Cj5,7,yj,xj,ex mud dragster project

TJ dash speakers that actually rock! Kicker sub and amp in center console
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Old 11-09-2019, 12:50 AM   #13
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how do you guys handle the software? Is there an open tuner available? How can i do programming? This is the one thing that i don’t really get at all..

For driving physics, i consider the teraflex rear sway bar. Let’s see if that helps bc right now body roll is to much for my taste.

We haven’t touched steering. All thought i do have a steering stabilizer in, this thing is absolutely chewy. Any recommendations what to do here?

Winter wont be boring...
Cheers
that is one of the difficult parts with a turbo or other major engine mods on the 4.0L. one of the other drawbacks to a turbo is it needs to generate boost at low RPM's to be useful in most offroad situations.

is there a rear sway bar in it now? how about the front sway bar? what shocks? i dont hold teraflex in very high regards for the TJ world, they stopped R&D about 15 years ago and keep pushing products that are mediocre for top dollar.

What do you mean by chewy? if you're sticking to a 30" tire the OEM setup is capable and if you wanted some more beef you could swap in a ZJ tie rod. btw, theres never a good reason to run more than one steering stabilizer on a TJ
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Old 11-09-2019, 08:23 AM
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that is one of the difficult parts with a turbo or other major engine mods on the 4.0L. one of the other drawbacks to a turbo is it needs to generate boost at low RPM's to be useful in most offroad situations.

is there a rear sway bar in it now? how about the front sway bar? what shocks? i dont hold teraflex in very high regards for the TJ world, they stopped R&D about 15 years ago and keep pushing products that are mediocre for top dollar.

What do you mean by chewy? if you're sticking to a 30" tire the OEM setup is capable and if you wanted some more beef you could swap in a ZJ tie rod. btw, theres never a good reason to run more than one steering stabilizer on a TJ
Thanks,

https://www.roughcountry.com/jeep-su...SAAEgImmvD_BwE

And

https://www.roughcountry.com/steerin...-tj-4wd-374057

Is installed.

Still, i can turn the steering wheel at least a quarter turn before something happens.. thatís why i said chewy.


For the advise to buy a sports car, i do own a 2008 911 Mezger turbo stick shift convertible. We have a Macan turbo and i just sold my amg c63 back home. I currently daily drive a raptor. I donít mention this to show off, but please stop that advises that sounds like I donít know what im talking about.

The Jeep is from all the vehicles I own the one that I truly love and i have so much fun to work on it. I donít want to convert this in a monster but before i buy a C10 and do a hemi conversion or whatever i decided to stay on (my wifeís btw) Jeep and enjoy. Thatís how I got here.

Thanks
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Old 11-09-2019, 08:42 AM   #15
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It just sounded like a the sports car would suit you better.... If that's not the case, no biggy.... I certainly didn't say that to insult you

We seem to have a slight language barrier but not insurmountable....

Best I can figure tho it really sounds like you really want the jeep to act much more LIKE the sports car than it was designed to... OR it currently had problems that need repaired

It SHOULD already have front and rear sway bars from the factory.... and the stock steering should not be sloppy... should not be able to move the steering wheel more than about 1/4" before tires move...
Shocks and tires can make a huge difference in lateral stability and percieved body roll too..

I suggest looking into making sure it is up to factory spec before adding aftermarket stuff...
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Currently in the stable: ... 97 tj 4.0 5 speed stock....04 tj 4.0 auto 4" and 33's... 98 tj roller for future build... 94 yj sahara 4.5" RE and 33's... 92 yj sbc 3/4 ton axles and 38's... Cj5,7,yj,xj,ex mud dragster project

TJ dash speakers that actually rock! Kicker sub and amp in center console
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Old 11-09-2019, 08:55 AM   #16
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You first said you had a "rouge x series lift" which I never heard of and doesn't seem to exist on google and said you were running 30" tires
Later you said you had a rough country 4" lift and dual stabilizer setup, both of which I would remove and either sell or trash asap in favor of a different system

If you truly are running 30" tires (or 31's) you don't need any lift lit at all...
Generally w a 4" lift folks run 33's or 35's...
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Currently in the stable: ... 97 tj 4.0 5 speed stock....04 tj 4.0 auto 4" and 33's... 98 tj roller for future build... 94 yj sahara 4.5" RE and 33's... 92 yj sbc 3/4 ton axles and 38's... Cj5,7,yj,xj,ex mud dragster project

TJ dash speakers that actually rock! Kicker sub and amp in center console
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Old 11-09-2019, 08:59 AM   #17
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a $25 monroe stabilizer is a better option than the dual stabilizers. all they do is put more stress on your steering box.

the RC kit includes a drop pitman arm and a drop track bar mount. neither are generally recommended and usually cause a lot of steering issues. it may be ok since both are dropped but its not optimal. best option would be to go to an OEM pitman arm and a track bar from either metal cloak, currie, or JKS. those are the only three brands that have been proven to clear the OEM diff cover and other steering components while being cycled. if you can turn the steering wheel a quarter turn before anything happens, something isnt right. you may benefit from a dry steer test but if what you are saying is accurate, your steering box may be on its last leg.
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Old 11-09-2019, 06:20 PM
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ok,

sorry for the confusion.
i understand that the RC stuff is not great but it I just got it 6 months ago and will not throw it out right again. ok, if you guys say this is not normal I will check on steering box.

This is what i've got;
https://www.extremeterrain.com/rc-25...-n20-6112.html

i run
Mickey Thompson Deegan 38ô Mud-Terrain Tire (31x10.50R15LT)

this is how it looks
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Old 11-10-2019, 10:11 AM   #19
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so its a 2.5" lift and not a 4" lift?
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Old 11-10-2019, 10:18 AM   #20
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Don't park that thing so close to my Porsche.
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Old 11-10-2019, 10:28 AM
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so its a 2.5" lift and not a 4" lift?
yes, 2.5
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Old 11-10-2019, 10:29 AM
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Don't park that thing so close to my Porsche.
Wife, is that you??didnt knew you are a member here
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Old 11-10-2019, 10:32 AM   #23
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Musta been channeling your wife!
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Old 11-10-2019, 01:43 PM
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ok,
back on topic: the engine

so far my weekend investigation is

1. Rocker Roller 1.7 (harlend)
2. sprintex or boosted tech SC
3. Edelbrock cylinderhead

i do like the boosted tech approach... very sympathetic website
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Old 11-10-2019, 01:45 PM   #25
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Skip 1 and 3 just do the supercharger


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Old 11-10-2019, 02:52 PM   #26
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Skip 1 and 3 just do the supercharger


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agree... both are a waste of money
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TJ dash speakers that actually rock! Kicker sub and amp in center console
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Old 11-10-2019, 03:05 PM   #27
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the best way to get the kind of power that seems to be desired is to drop in an aluminum block vortec 5300. something like the LC9

315-320 hp, 335 ft lbs of torque, and a couple hundred pounds lighter than the 4.0L I6. plus endless upgrades for more power if desired
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Old 11-10-2019, 07:48 PM
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the best way to get the kind of power that seems to be desired is to drop in an aluminum block vortec 5300. something like the LC9

315-320 hp, 335 ft lbs of torque, and a couple hundred pounds lighter than the 4.0L I6. plus endless upgrades for more power if desired
I get your point.. especially the weight is an argument.
Is there any conversion kit available?
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Old 11-10-2019, 08:05 PM   #29
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See what Novak Conversions has to offer. https://www.novak-adapt.com/
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Old 11-10-2019, 08:12 PM   #30
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See what Novak Conversions has to offer. https://www.novak-adapt.com/
thats where i'll be going when my engine blows. 180k on the clock and runs like a top

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