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Banks Dyno day!

53K views 99 replies 47 participants last post by  DK570  
#1 ·
So it took me a while but I finally found the time to get my install done. Ordered a Banks Stinger system for my 2013 JKU from The Speed Shop in Pomona CA. (Great people and prices!...find them at www.speedshopstore.com) and had it within a week. Started planning on a dyno day to see what I'd be getting from each component and the system as a whole.
A coworker of mine has been doing some testing with his F-150 EcoBoost at a local shop here in town, and after talking to Randy, the owner of Ragin Racin, we set up a window for Saturday.


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Randy and Ragin Racin are late model GM and Corvette specialists...needless to say I felt like I was in the wrong place LoL!


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I don't know if it's a good or bad thing but come to find out I was the first Jeep anything Randy has ever run on the dyno. All strapped down and ready to go


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To start off we ran a baseline stock to see what it was putting to the wheels and immediately we ran into a problem. For dyno pulls you want to get as close to a 1:1 gear ratio as possible. For my 3.73 rear end that would be 3rd...which just happens to be 1:1. Problem was I have an auto and even in "manual" mode it wouldn't let me past 2nd. A quick google produced others that had the same issue, most of which couldn't even get out of 1st. Second gear in 3.73's is about a 1.41:1 so I decided to just go with it. Stock runs 1&2 done back to back produced 202.23hp/173.10tq and 197.16hp/170.35tq respectively.


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Factoring in Jeep automatic loss of roughly 30%, this was actually nuts on and we decided that 2nd gear pulls would be sufficient. So in went the Banks Ram Air intake...


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Install was simple and took about 10min. Right away I noticed a much deeper tone from the intake. As before, we did 2 pulls back to back and MAN! did this thing scream! Under wot much louder than I was expecting...which is a good thing lol. I didn't get pics in between each of the next runs but I'll refer to the final graph that contains all of them. Runs 3&4 with intake produced 216.14hp/182.12tq and 213.29hp/180.49tq respectively.


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I can say with these results I was more than pleased. 14hp and 9ft/lbs to the wheels on intake alone...and such a great sound! We pulled the intake back off and reinstalled the stock box. Up next was the Banks Monster exhaust...out with the old and in with the new!


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Install went smooth...I had pre cut the exhaust the night before so I wouldn't be cutting while strapped to the dyno. After popping the stock exhaust off the hangers, the new Monster went in without a hitch. I used the supplied exhaust clamps while intending to get the system welded up later on. 2 pulls later (runs 5&6) showed 211.53hp/183.47tq and 211.18hp/182.37tq. A gain of about 9hp and 10ish ft/lbs on exhaust alone. What was most surprising was how little it dropped on the second run compared to the stock and intake only runs.

Back on went the ram air intake for the final set of runs...intake and exhaust combined. Again, 2 pulls back to back (runs 7&8) showed 221.33hp/185.43tq and 218.72hp/183.35tq respectively. Final tally showed a net gain of 19.1hp and 12.3ft/lbs...not too shabby for some quick bolt-ons!




All in all I was very happy with the results and would recommend the Stinger system to anyone. Big thanks to Randy at Ragjn Racin, Kevin for helping me wrench on the dyno, The Speed Shop and Banks for awesome products!




Btw, I ended up going with the black tip!















Now on to some bad-ish news/update. Shortly after the install I noticed the exhaust leaking horribly around the supplied exhaust clamps, to the point that there wasn't a whole lot of exhaust coming out of the tail pipe! Planning on getting the system welded anyways...it wasn't a huge deal to me but for someone who hopes to get by on clamps alone...good luck! Some higher quality clamps would do this package a world of good.

The other issue I had...which is my fault...was I wasn't 100% satisfied with the volume of the exhaust. I purchased it knowing that it's one of the quieter ones out there, but it's REALLY quiet. At wot you def know it's there, but I was looking for more sound at regular throttle input...so when I had the system welded up I did the unthinkable...I had the resonator removed (Gasp!) and I must say I'm very pleased with the outcome! The volume that I was looking for is there now and the tone is just right. A little raspy but still very throaty for a V6. And after taking it on the highway I can say that there is little to no drone in the cab at 70mph. My wife even said she barely notices it. Now obviously under acceleration it's there, but once you're at cruising speed you're good to go.

Once I have some good numbers on fuel mileage I'll give an update, and am planning on getting a few sound clips together when I get some time. Hope I didn't waste too much of everyone's time lol.
 
#2 ·
I had the same problem with the clamps as well but if you move them right where the slits start closest to the un slitted side it actually seals them very well! Im constantly debating getting the intake lol love the exhaust!
 
#3 ·
Photos apparently don't like me so let's try this again. 5 photo limit per post?
 

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#10 ·
First post here! Been hanging out for a while since I have the itch to get back into a JK. Had an 07 and had lots of fun but it's a long story and have not had it for a while now. Sad.

I really want to thank you for your thread. My "old" jk had an air intake and exhaust and what a difference it made. It is so nice to hear that the new v6 can gain as well. Us gear heads know that is just a matter of time, and for a relatively affordable amount, we can change what the OEMs give us to something real fun.

You are making it so hard for me not to run over and place an order for a 14. Unfortunately, I have a deal on the table with my wife that something else needs to come first so I can only wish and wait.

Thanks for the review.
 
#13 ·
I thought my butt dyno felt an increase in power lol. That place looks like heaven with all of those Corvettes. Be careful with that tip though, because it's flat so it can easily be pushed up too far and melt your bumper. A guy at work and I bought these and he had his angled too high and one day I noticed that he had melted his bumper a little. Great write up! Thanks!
 
#14 ·
Very nice. The graph tells me that even with a loss of backpressure (usually a little backpressure is good for low end torque) you still have more hp and tq at any rpm over OEM. Impressive. I think you just made my choice for an exhaust, as I was looking for a quiet OEM replacement. If the OEM is a 0, how loud would you say the banks exhaust is?
 
#16 ·
Before I took the resonator out I would say probably a 3ish, but even though it was fairly tame in terms of volume, it still had a nice tone...almost a growl but not over doing it. If it's a quiet oem replacement you want with a little character this is definitely it
 
#20 ·
Great to see Dyno since I don't think Banks shares this info. I did the exact setup you have and thought the sound was perfect (if not a bit loud sometimes). I love the sound under acceleration and get faint memories of my G35 exhaust note. I'm having the leaking issues, I tried to torque to 35lbs as manual states and clamps started to cave in on themselves so I either need to weld or get better clamps.
 
#28 ·
You will never get the right amount of torque on the clamps because they have two bolts and you can't tighten them at the same time evenly. Band clamps work like a champ and it's still removable.
 
#21 ·
Thanks for the update. :thumb:

Wish I had been able to dyno mine before exhaust. I went with an aFe high tuck a few weeks ago. Nice rumble under throttle, almost non-existent at highway speeds. Today, I'll be installing an Airaid intake (went with this version as "someday", I may run a snorkel and the Airaid is "snorkel friendly"). Wonder what that combo would produce over stock.

One thing is for sure, these engines need to breathe! I'd think just about any aftermarket options would help that situation.

Thanks again for some factual numbers! Good job on the pics, too!

Enjoy the ride!
 
#22 ·
Thank you, this was a great post!! I've been going back and forth about intakes and exhausts for my 2012, mainly because of reading so many people on this forum talk about how useless they are. I knew I'd do it anyways, just needed something to help justify the decision and your post is it haha. And the Banks system was what I was leaning towards so this post was awesome!!

The only thing we need now is some good soundclips!
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#24 ·
Awesome!! I to have the banks stinger combo and love the sound of it. Now I know what type of numbers it added. I had issues with mine leaking a little as well but I just pounded it together with a rubber mallet then put two claps on each spot and bam problem solved.
 
#27 ·
Wow, I am fairly surprised that the combo adds that much power. I may have to consider this as I've added intake and exhaust on every car I've ever had but wasn't planning on doing it with the Jeep (until now). My few concerns would be intake drone which doesn't seem to be a problem, exhaust being loud also not a problem, reduced water fording capability (not like I plan on fording water any time soon), and last but not least effects on gas mileage.

If this system is confirmed somehow to increase gas mileage 1 or more mpg then I will be $600 dollars poorer very soon.
 
#29 ·
this system is confirmed somehow to increase gas mileage 1 or more mpg then I will be $600 dollars poorer very soon.
I noticed better highway mpg (by maybe 2 mpg) but in town it seems to have dropped .5-1 mpg. I also did small lift alongside mine so that could partially be to blame and also my brand new lead foot so I can enjoy the exhaust note. It's been over 2 months and I still catch myself being a bit more aggressive with acceleration.

On highway I haven't been road tripping to San Diego since I did it, but you can hear increased sound cruising at 75 or so. On flat roads it's almost silent, but when you hit a small hill where cruise control throws a little gas into it, the sound increases in the cabin.

Mine has toned down over the last few months, but don't fool yourself into thinking your Jeep will be quiet with this setup. Driving through parking garages reminds me how loud it is outside, but I love it.
 
#31 ·
Has this combo helped to lessen or eliminate the delay in throttle response? That alone would be worth it to me. I hate having to hit the pedal a half a second earlier than I should so that I can pull out onto our local busy streets.
 
#36 ·
I just ordered the Banks intake and exhaust (as separate items, not the stinger system) on Autoanything.com. They have a discount of 15% plus free shipping for first-time customers who order over $150. Just use code "First15". So, I just saved $101 on the system! Can't wait to get it installed!

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#37 ·
I just ordered the Banks intake and exhaust (as separate items, not the stinger system) on Autoanything.com. They have a discount of 15% plus free shipping for first-time customers who order over $150. Just use code "First15". So, I just saved $101 on the system! Can't wait to get it installed!
Congrats...ur gonna love it!
 
#38 ·
Thanks. I can't wait. Looking forward to all aspects of the two systems combined.