OK, now this concerns me. How much worse is it? And is it worse for normal driving, or are you just being more aggressive because, like, you can now. :-)Quote:
Originally Posted by Icheer4beer
Printable View
OK, now this concerns me. How much worse is it? And is it worse for normal driving, or are you just being more aggressive because, like, you can now. :-)Quote:
Originally Posted by Icheer4beer
Yes, you're milage will remain the same, or get worse depending on how you hit the pedal...and hit the pedal.....and hit the pedal....
So my first impression after driving a bit this weekend... It's worth every penny I paid.
1. Is it lightening fast? No.
2. Is it as impressive as those youtube videos of the V8 jeeps? No.
3. Does it get up to speed pretty quickly and maintain speed with ease -- even on hills? Absolutely.
It has the power that it should have had from the factory. It doesn't downshift when I see a hill or the occasional wind. Considering I was originally going to have Motech do a V8 swap next year for near $25K, I feel like this thing is awesome for the money. My first partial tank was terrible (10 mpg), but that tank was also used during all the diagnostic work which was very very rich. My next tank was 15.3 mpg, which is about 1-2 points worse than my stock numbers. If I cared about those 1-2 points that much, I would have spent the supercharger money on a Hyundai -- much like the beauty I rented last week.
As far as the tune: It is about 95% perfect. The shifting at full throttle sometimes hangs until it hits the rev limiter, but not every time. The rest of the time the shifting isn't bad. I don't think any supercharger manufacturer can do much about that until Diablosport, or someone else, figures out how to hack the WA580. As far as the engine management goes, I've only noticed a couple of occasions where I felt like it was surging or hesitating, but I can't recreate it consistently. I'll give details when I've figured out what the conditions are (I'll also send log data to Sprintex and try to get it addressed). really pretty happy so far. I've only put about 350 miles on it so far, so I owe you guys better information when I've had time to gather more observations.
I know you've seen Icheer4beer's video and the acceleration is obviously pretty good, but it's ability to drive down the road without grabbing a gear is just fantastic.
Just drove from DC to Atlanta. 16.5 mpg doing between 65-70. Any faster and the mileage goes way down. No problem passing or merging.
Also, I talked to Gary at sprintex and he said there is a new tune to get rid of the rough running cold problem. I will load that when I get back.
We need to get this sprintex up next to that turbo on the slick track.
I took advantage of some free time today and installed a catch can between the PCV and the Sprintex. I'm not sure if it's placebo, but the throttle response seems more smooth and linear. If it is more smooth, it's just a bonus. My intent was to keep oil from building up on the intercooler.
Its not placebo, i thought the same thing as soon as the can was installed even before I cleaned out the intercooler.Quote:
Originally Posted by rgeorge33
Did you get your catch can from billet technology?
No, I had an Elite Engineering can that I pulled off our 2012 Grand Sport Corvette before we sold it. ( http://www.eliteengineeringusa.com/e...ing-catch-can/ ) I wasn't using it, and I saw a fair amount of oil in the old intake manifold when I pulled it to do the Sprintex install, so I figured I needed to put the can on sooner rather than later. I had to pick up some 1/2" barb fittings before I could install it, since it originally came with 3/8" fittings.Quote:
Originally Posted by JeepLab
This is one of Ripp's latest videos. You will see and hear that the new kit comes with a catch can. I think it's cool that they put it in now.
https://www.youtube.com/watch?v=8LZ9VbOPe1I
any sprintex updates? mainly...is it worth the pricetag? If you could have your truck back as it was before, without all the work to turn it back AND you could have the money back......
would you do it?
I am glad I did it. If you have 5500 to put into your jeep it's worth it. I never worry about passing or having power. I do worry about the long term effects on the jeep. When it destroys the engine from over boost it will be another project. Maybe a V8 or a rebuild. I don't know. However, it's great having it now and I should just live in the present and not worry about a couple years down the road.
I think it's worth the money, but I'm still not completely satisfied. In my initial review I said the tune was about 95%, but that was probably generous (honeymoon stage). Since I've been driving for a few weeks I've noticed a few annoying things. The first, which we can all acknowledge is not the fault of Sprintex, is the shifting. With the TCM being locked tighter than Ft. Knox, there's not much anyone can do about that. The next thing is that there is slight hesitation sometimes (rare, but present) and there is sometimes surging under light acceleration at around 2k rpm. The last thing is that the throttle does not feel linear. It is kind of notchy, or lumpy feeling. Some of this could be due to the extreme cold we've been experiencing in Kansas City, or maybe the bypass valve vacuum actuator, or just the tune -- I'm not sure. However, this is still my first tune and I just recently contacted Gary and he seems eager to help. Here is his response to my message:Quote:
Originally Posted by Yoinkers
Jay is working on some cold tuning in China right now. I should have something over the weekend.
Dialing that linearity in the throttle is indeed difficult. We can work with the scaling inside the tunes and that has been part of the challenge. I keep comparing it to this, an F1 car playing the Star Spangled Banner.
https://www.youtube.com/watch?v=gZIUGreqrCY
Scaling in the map and “playing scales” are not entirely different meanings of the same word.
https://www.youtube.com/watch?v=RqVzi36AlNA
I don’t know if you are into music or not, but it feels like the motor is “playing scales”, like it’s practicing music. I noticed it in earlier testing. It feels like the motor is revving one note at a time.
You can scale the throttle, all 4 cams, and the spark timing in the mapping. That’s the challenge in mapping current PCMs.
We’d definitely appreciate a log if you can send one, please. This explanation/translation may seem a little weird.
Kind Regards,
Gary Turner
USA Coordinator
www.SprintexUSA.com
I'm hoping I can get some log files this weekend and get to work on the tune. On a positive note, there is plenty of power now and it seems as though there is boost at lower RPM, because I can stay up-to-speed at cruising RPM (1800-3000 RPM). I am extremely happy about that. Also, at WOT it is ridiculously quick for a Jeep! If the drivability becomes smoother with future tunes, I will be incredibly happy. And once someone unlocks that damn transmission, this thing will be GREAT!
Now to the hardest question of whether I wish I had the money back or not... Well, I kind of wish I would have saved it towards a LS conversion from Motech this summer. If the tuning is straightened out, I may move from this position. For now, I have two reasons for saying that. The first is the fact you can go with something that has been factory tuned (optimized for a wide variety of conditions). No need to worry about special cold weather tuning or other factors. The second is the transmission. Another gear, plus it is easily adjusted. If we can't get the tune much better for the Sprintex, well.... I'll get that LS transplant in the next couple years anyway. Sorry for the long diatribe, but I hope it helps.
Randy
It might be your tune. My first tune was a problematic. Surging and not what you would expect. My second tune got rid of the surge unless it's real cold. It does not like the teens. I also have been promised the new cold weather tune. As for shifting, I don't see or have the same problem. It shifts where I want it to 80% of the time. Sometimes if I am watching the gas mileage I will force an early shift by tapping the Shifter. Not a problem. Linear peddle? I hardly ever use more than a quarter of the travel. That's plenty for regular driving.
What's a LS conversion? 20k? My wife would never go for that. Best performance upgrade for the buck. A supercharger, not necessarily a Sprintex.
My jk has nomore hesitation and surging i had a custom tune done on my jk and it was well worth 600 and i made 94 more hp over ripps canned tune
WHOA! Pump the brakes. Your statement right now is that your rig puts down 422 hp on the dyno? Is there a sheet on this?Quote:
Originally Posted by 2k13jk
My base "canned" Ripp tune puts down 328 whp.
Standard pulley. (i was going to put hi alt on, but couldn't get the damn thing off.)
My jk made 344 wheel on 8lbs of boost i had it dynoed previous to tuning it i only made 250
hmmmmmm. what was the tire, set up ? type of dyno?
250 is horrendus.
Regular drive on dyno 6 speed 3.21 35s
So you installed a RIPP SC, took it off, and put a sprintex on?Quote:
Originally Posted by 2k13jk
Thats a lot of work and money.
I always had a ripp i never took it off
Hello Jeep Lab folks! Here's the quick update to my tuning issue... Nothing productive, really. I contacted Gary by email last week and he didn't respond, so I called after a couple days. He answered and he told me his tuning guys were behind and asked me to send him my back-up tune, so maybe that will help them along.
Since I'm not typically one to sit idle, I started contingency planning. I contacted Robbie at Motech to discuss an LS Swap. He directed me to John at Overland Performance, an installer that's a little closer to me. We've gone back and forth a bit and he's working up a quote for me, so we'll see. Maybe I'll be following the lead of gbaumann and make my next corrective step a big one.
Engine swap after spending 6k is a very expensive solution.
If your going to do it, look into getting the new 6.2 corvette engine that they put into the new sierra denali 1500.
That thing is siiiiiiiiiiick.
This lack of responsiveness would make me lose it. Maybe I should shift my attention back to RIPP.
really, i try to root against RIPP, because i like the lobe or screw style blower, but you really have to start respecting RIPP when these other guys stumble.Quote:
Originally Posted by FieryRobot
All the power in the world means nothing if it dosent work right.
Well, I sent another follow-up message to Gary at Sprintex today to check the status of tune. He expects to see something in the next couple days. I hope so, because I finally got a quote from the LS installer. He came in about $10k more than Motech's price, so while I may still consider the LS3 at some point, I don't think I'll have it done by this particular installer. I have no doubts that his work is quite good, but it's not good enough to justify that much more than Motech. As far as the new Gen V V-8s, Motech doesn't support them yet.
I will say Gary is quite friendly and he seems legitimately concerned about getting the tune straight. I'm looking forward to the new tune, especially after reading the recent post about the improvements to the Magnuson tune. It sounds like they're getting it figured out. Hopefully Sprintex won't be too far behind. And if Diablosport could crack the transmission...
Quick update... While the guys at Sprintex worked hard and sent several tunes to try to get it straight, I'm done. The cold weather operation was never quite right, but the worst part was the transmission. That's really an issue with the Diablosport tuner rather than the Sprintex SC. My Jeep is currently in the capable hands of Robbie at MoTech getting an LS3 and 6L80E. He's also replacing the driveshafts with heavy duty units. All the original equipment options, such as cruise control, remote start, stability control, traction control, and of course the dash, will work as usual. The only difference will be the smooth linear power of a 6.2L V8 and an efficient 6 speed automatic! If anyone has interest in how this goes, I can start a separate thread once I get the jeep back.
yea that sounds boring. no one here has any interest in that. ARE YOU NUTS?Quote:
Originally Posted by rgeorge33
We want every detail.
I sense a 6.4 Hemi vs 6.2 LS comparison coming up... please?
Let's see the LS build! I want to see how the truck handles with the lower weight of the aluminum block. Hopefully better than the Hemi. After reading about the issues with the Prodigy and Sprintex calibration I'll be recycling my 3.6L after looking at the bottom end.
Whats the weight difference? and then we have to categorize the weight of each aftermarket product on each rig. Cherry Bomb is carrying those AEV bumpers. Whats the extra gear on the LS truck?Quote:
Originally Posted by gbaumann
I will bet on the 6.2 LS FTW!Quote:
Originally Posted by UselessPickles
the 6.4 is pretty mean also. And i think RIPP makes an SC for it.
Are you still pleased with the Sprintex Supercharger? Having any issues? Just checking-in to see how it is going.
Still loving the sprintex. No major problems. The only thing I don't like is changing the oil. It's very challenging to find a tube small enough to extract the old fluid.
Thanks for the follow-up! I am glad that you are happy with the Sprintex! You are the first guy who I have contacted to give a good report.Quote:
Originally Posted by Icheer4beer
no surging, or hesitation? would you dare to say the tune is perfect?Quote:
Originally Posted by Icheer4beer
I think it strange that I am the only person having a good experience with his sprintex.
I will say it not a perfect system. Main problems are it doesn't like to be cold. Solved that by letting it idle while I load the kids. That solved most of that issue. Gas mileage is bad. Of course, I do accelerate quickly and I live in Texas and pay $2.19 a gallon for premium. So I deal with the mpg because it's just fun to drive. The other problem was that I was getting an O2 sensor warning.
They sent me a new tune on Friday. Cold engine ops is good. Too soon to know about mpg and the O2 sensor warning went out. Throttle response is tight, however, I have had a couple of hesitations off the line. I just sent in the feedback this morning and I will let you know the response.
Overall, I would do it again with sprintex. Torque is great. I can easily spin the 35's if that's what I want to do. I don't because they are expensive and I am past those years. Passing on the road is not a concern. Shifting is smooth.
The only real complaint is its hard to read the dipstick and change the oil.
Spinning big tires is a crazy thing. i was once at RIPP and Ross, (the brain over there) told me I wasnt driving BB to her potential. He had just seen my 0-60 video. So he took the keys and TORCHED my 37s. I couldn't believe how he lit them up. I was certain he was going to break something expensive, but i had to act cool in the passenger seat....hiding my terror.Quote:
Originally Posted by Icheer4beer
Ohh you mean this...Quote:
Originally Posted by Icheer4beer
Attachment 1665
I have narrowed my choices down to the Sprintex or Prodigy Turbo kit. Where did you buy your Supercharger?
Quote:
Originally Posted by Icheer4beer