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Old 05-22-2013, 08:48 AM   #18
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Quote:
Originally Posted by OldScoolCamaro View Post
...possibly the guy with the ZL1 claiming loss of low end power after installing Roto-fab CAI is running on the low octane table.., has too little miles on the motor yet, or has an incorrect instalation with some obstruction or loss of vacuum. From my personal experience there is another issue at hand other than that of a properly running ZL1 with a properlly installed Roto-fab ZL1 CAI to make one say it has a low end problem.

I tend to agree I noticed it spins wheels a lot quicker,I have been running 104 from the get go .I found it very noticable not even really pushing it.
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Old 05-22-2013, 09:52 AM   #19
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I don't see how you couldn't feel the extra power unless something else is not ideal. The additional airflow allows for more boost which is noticeable throughout the power band. I can understand not feeling the difference in normally aspirated car, but with most of the dynos adding over 30 at the wheels, this should be a butt dyno improvement.
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Old 05-22-2013, 11:10 AM   #20
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Originally Posted by 2012-1822 View Post

I know California is mentally hilarious, but what is the deal with the 91 octane, have they started banning having fun unless you are a pot head out there?
I was just trying to explain my situation lol
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Old 05-22-2013, 01:36 PM   #21
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pull your fuses then do a run with the nannies off.

post in a pic of the install to make sure the tube and maf are oriented correctly.

I did pulley, TB, CAI all at once so in my case it was like I was driving a differnt car. never drove it will just CAI.
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Old 05-22-2013, 05:29 PM   #22
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I feel a little bit of extra pull in the upper RPM's when going WOT but for the most part you can't really feel a 25hp increase on a car this heavy. Once you do more mods like a pulley, headers, tune, etc. along with the rotofab you will feel the extra power. I just love the sound of the supercharger whine now when going WOT, especially when outside temps are somewhat cool
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Old 05-22-2013, 06:15 PM   #23
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It's a great ROI and easily reversible for the purist. I was surprized to see how little air intake ports there are on the stock box after I got it off. So, it certainly gets much more air with the RotoFab.
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Old 05-22-2013, 06:36 PM   #24
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I didn't really notice a gain in power with the Roto-Fab install, but I absolutely love the sound of the supercharger whine. I was a little disappointed that I couldn't hear the supercharger very much when I got the car, but now I'm even more in love with car because of that sound. I didn't feel any loss of power, though.
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Old 05-22-2013, 10:36 PM   #25
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Originally Posted by Whos_Drivin View Post
What mode are you driving in? The torque management may be kicking in.
nannies off/ traction control off. Anyway .. guess i should have done my homework before deciding on this mod.. Now i have a head turning super charged air sucking machine that screams under the hood when i exhilarate, but it is now not as fun taking off from dead stop w/ less torque.

I have read that with a CAI mod for most cars it seems to be normal that low in power/torque is compromised .. but the gains are pushed towards the upper rpm range which is basically only a benefit for track driving.
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Old 05-22-2013, 10:55 PM   #26
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I've ran nothing but 93 octane since the day i took delivery. My ZL1 was ordered, it wasn't purchased off the lot. Just to be sure and out of curiosity I done the fuse pull way before i've done any mods. I didn't experience any difference from the fuse pull so I guessed I were the lucky few that actually took delivery of my ZL1 with the proper 93 octane. I have up to 4,500 miles logged. I had all my traction assists off. I went back to check and made sure all my hoses related to this mod are on tight.. they were fine so still puzzled how some are claiming increase on all ranges of the rpm. Anyway its a pretty simple mod.. i don't see how i could mess it up.. I'll post pictures some point over the weekend for those who suggessted it.. so you could see if i messed it up or not.
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Old 05-23-2013, 09:05 AM   #27
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Give it some time (couple of weeks) for the car to self adjust your fuel trims. This flat is normal for adding something which adds more air and creates a slightly different flow path over the MAF sensor. I felt the same right off idle low end flat spot and it corrected itself over time.
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Old 05-23-2013, 01:21 PM   #28
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Originally Posted by Mil View Post
I've ran nothing but 93 octane since the day i took delivery. My ZL1 was ordered, it wasn't purchased off the lot. Just to be sure and out of curiosity I done the fuse pull way before i've done any mods. I didn't experience any difference from the fuse pull so I guessed I were the lucky few that actually took delivery of my ZL1 with the proper 93 octane. I have up to 4,500 miles logged. I had all my traction assists off. I went back to check and made sure all my hoses related to this mod are on tight.. they were fine so still puzzled how some are claiming increase on all ranges of the rpm. Anyway its a pretty simple mod.. i don't see how i could mess it up.. I'll post pictures some point over the weekend for those who suggessted it.. so you could see if i messed it up or not.

I took delivery of my ordered car with 8 miles on it and ran nothing but premium. The fuse pull woke mine up for sure. even my wife noticed it.

just make sure you pulled both fuses and they were the right number. I thought the fuse pull was BS until I did it. Now some say it does nothing but on my car it was noticable. this was even before mods.

need to get on a dyno or at least datalog the car. right now it is all speculative posts. The butt dyno is not calibrated very well.

to people who say 25hp is not noticable it disagree you should be able to feel 25hp. so if you don't it is either some kind of wied misconception IE the power is just even more linear not and is fooling you or you maf transfer function went off for soem reason and you running rich robbing power.
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Old 05-23-2013, 01:35 PM   #29
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And my butt-dyno thinks the gains are substantial

We've seen plenty of dyno numbers on these intakes already. They make a solid 15 rwhp on the top end and all through the mid range power band. If you lose any power it's well below your power band and shouldn't have any effect on a race. Also, 15 rwhp on a car making over 550 hp isn't something that should make a night and day difference. It's about a 2% power gain to kind of put it into perspective. If you really want to feel a big jump in power you'll need to look into long tube headers or some pulley work!
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Old 05-23-2013, 10:10 PM   #30
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^...and to that end, I understand your point, but I would like to ad that long term experience and the ability to articulate/express into words, and have visceral feel are different things. Perspective is reality is the saying. They vary wildy. Therefore proven methods of documenting and repeating results is key, such as in a scientiific method. Dyno pulls are a good source, and granted they vary somewhat due to the technology, but they are real world. Also someone who is very good at doing something may not be able to translate that ability, give feedback, or discriminate enough between what is noticeable and what is not. Semantics to a degree, ones perception versus reality another. However, some are locked in, plugged in, or in tune to a point with something to the degree that they are able to distinguish between fine differences of performance and can differentiate between them. Dynos are good, and an additional 100 HP is even better, but a driver with enough seat time and experience can relate to the changes in performance up or down the scale readily.
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Old 05-24-2013, 05:35 PM   #31
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Originally Posted by Enough View Post
Give it some time (couple of weeks) for the car to self adjust your fuel trims. This flat is normal for adding something which adds more air and creates a slightly different flow path over the MAF sensor. I felt the same right off idle low end flat spot and it corrected itself over time.
It's getting stronger.. today I smoked up the back tire. Did a huge burn out started on 2nd gr from dead stop. thanks everyone for chiming in. I guess it probably did take a few runs for the engine to re-map the change in air volume. best no tune mod ever! Thanks Roto-Fab Here are my install photos:
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Old 05-24-2013, 07:39 PM   #32
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looks excellent, cant wait to do mine. Nice job
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Old 05-24-2013, 09:32 PM   #33
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looks excellent, cant wait to do mine. Nice job
Thanks...


I used the video instructions.
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Old 05-24-2013, 10:48 PM   #34
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Quote:
Originally Posted by Mil View Post
nannies off/ traction control off. Anyway .. guess i should have done my homework before deciding on this mod.. Now i have a head turning super charged air sucking machine that screams under the hood when i exhilarate, but it is now not as fun taking off from dead stop w/ less torque.

I have read that with a CAI mod for most cars it seems to be normal that low in power/torque is compromised .. but the gains are pushed towards the upper rpm range which is basically only a benefit for track driving.
I had EXACTLY the same experience.
Then I added headers, cat delete, and crank pulley, then the butt dyno picked up the 60 hp and tq gain!
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