04-23-2010, 04:32 PM | #15 |
CCOTR Member
Drives: Victory Red 2010 2SS/RS A6 Join Date: Jun 2009
Location: Parker CO
Posts: 1,096
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Got my vararam 1 week ago and have a Vectormotorsports tune on my L99. Cars runs GREAT. NO bucking serging or anything like that. So far, Im very happy with both !
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--------------------------- 2010 Camaro SS/RS Victory Red A6- Vararam Intake, Doug Thorley Tri Y LTs, Magnaflow X-pipe, Flowmaster Super 40's, VMS Tune, Razzi Ground Effects, Herritage Grill, RED headlight and fog light Halos, LED DRLs, Dash and extended Door ABL, engine, grill and rear defusser LED lighting ........ 12.59@112.21 (DA Corrected) |
04-23-2010, 04:55 PM | #16 | ||
Drives: 2008 Z06 Join Date: Apr 2010
Location: Mobile, AL
Posts: 9
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I've tested with and without screens to determine if there is a loss of power. The previous style factory GM plastic 85mm MAF (w/ screen) does not pose any loss of power below 500 rwhp Actual, and it may even not above that (to be fair, I haven't tested the factory MAF w/ screen above those power levels). This shows me that there's still sufficient flow through the factory screen, which is more dense than most of the aftermarket screens I've been seeing tested as of late. With that being said, there is a good thread over on HPT that shows some before/after results with aftermarket screens on guys with larger MAF housings. I'll be testing a few different cars with these screens soon (unfortunately, I don't have any new Camaros lined up at this time, but hopefully that'll change). See here (read the whole thread for before/after results, and the various screens used): http://www.hptuners.com/forum/showthread.php?t=26546 One of the nice things the screens gave to these guys was even a drop in Hz, which can help on those close to pegging the MAF table limit (that won't be an issue on the the Gen4 vehicles with the 15k Hz limit, like the new Camaros). Not to sound crude, but unfortunately you aren't able to see the bigger picture. A tune can't cause the airflow going through the MAF to straighten up. There is a bigger issue at hand here. What "feels" good isn't best. |
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04-23-2010, 05:23 PM | #17 |
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Drives: Victory Red 2010 2SS/RS A6 Join Date: Jun 2009
Location: Parker CO
Posts: 1,096
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To my knowledge, VectorMotor Sports has no vested interest in Vararam or any other CAI. I have spoken and exchanged emails with Kirk many times and believe he would have mentioned this if it were the case. I am no mechanical engineer, only a systems engineer so I must rely on my butt dyno and what those I trust tell me. I trust Kirk.
I understand a tune cant cause the airflow to straigten up, but if I am not moticing any of the bucking or serging problem, then what is the "bigger picture" that I am missing?
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--------------------------- 2010 Camaro SS/RS Victory Red A6- Vararam Intake, Doug Thorley Tri Y LTs, Magnaflow X-pipe, Flowmaster Super 40's, VMS Tune, Razzi Ground Effects, Herritage Grill, RED headlight and fog light Halos, LED DRLs, Dash and extended Door ABL, engine, grill and rear defusser LED lighting ........ 12.59@112.21 (DA Corrected) |
04-23-2010, 07:16 PM | #18 | ||
Drives: 2008 Z06 Join Date: Apr 2010
Location: Mobile, AL
Posts: 9
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Quote:
If you were my customer, and the MAF was erratic while I was tuning it, that would be one of the very first things I'd inform you of, explain to you what's happening, and why this is bad, and what you can do to correct it. I'd know ahead of time about the potential for this issue just by knowing what type of CAI you had before you came to me (I always ask these questions). As a matter of fact, I actually go to the extreme and show each and every step of the tuning process and datalogs to my customers (it's the little things that count). You'd be shocked at how much cleaner a power curve is with a non-erratic MAF signal. There's 1 to 5+ rwhp/rwtq that can be lost throughout each rpm increment, due to an erratic MAF signal. So, did your tuner do any of this? These's more than just "trust" to have. Experience encompasses a LOT of different areas. Quote:
The bucking is generally due to a number of issues, mainly VE is now off, and of course the MAF transfer is usually off with the aftermarket CAI (due to the change in velocity and placement of MAF). Spark modification can help, as well, but not all vehicles can gain much more spark over factory in the lower airflow/load ranges. But, as I stated above, the erratic MAF signal still persists, and thus power delivery will thus suffer (notice I said "delivery", not gains). |
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04-23-2010, 07:59 PM | #19 |
www.Camaro5store.com
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and I have not yet gotten a new cai..looking around at my options. Obviously want one that looks good, performs well, and does not cost me both arms.
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04-23-2010, 08:50 PM | #20 |
THERAPY
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Sooooooooo then it's CAI. Just ordered mine today
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04-23-2010, 09:28 PM | #21 | |
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Drives: 2010 Challenger R/T;2011 Mustang GT Join Date: Jan 2010
Location: Texas
Posts: 2,105
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If you are interested in trying my Halltech let me know. I would be happy to bring it to our dyno day on 5/15 in Buda. |
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04-23-2010, 09:59 PM | #22 | |
Drives: Blk/Blk 2018 Sierra SLT Join Date: Dec 2006
Location: Golden State
Posts: 2,925
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I had my car tuned and still have the bucking going on, my tuner is going to do some street tuning to try and fix it
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04-23-2010, 10:31 PM | #23 | ||
Drives: IBM 2010 Camaro Join Date: Dec 2008
Location: OKC
Posts: 462
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TAG, a lot of people in this forum respect you both because you are a moderator you because you seem like a really great guy (at least from my experience). Because of the high level of respect you should really watch what products you openly support. No disrespect, it just a lot of people will listen to you and take your advice.... many probably did and waited for the Vararam unit because of you.
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04-23-2010, 10:38 PM | #24 |
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Drives: 2010 Challenger R/T;2011 Mustang GT Join Date: Jan 2010
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A bit harsh man.
Everyone has a choice to make their own decisions. I would recommend anyone in the market for a CAI do their homework. The Vararam is not a bad intake. It requires a tune to get it right. BFD. There are other intakes on the market that require the same. My only issue is the way they market it. It is borderline BS. There are plenty of other no tune intakes on the market that show nice gains. Again, everyone has a choice and that is a good thing. |
04-23-2010, 10:47 PM | #25 |
speed freak
Drives: 2015i Cadillac Escalade,10 IOM 2ss Join Date: Jun 2009
Location: Neenah Wi
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I let my place for the Vararam go. I really wasn't comfortable with some of the negative feed back of it . I picked up a Roto Fab for a good price and will be installing it shortly.
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Current:2015i Cadilac Escalade,2016 Lexus RC350,2011 CVO StreetGlide cammed,tuned & loud. 2010 IMO/IO,custom stripes,GFX,sunrf,solo exhaust,JBA shorties,rotofab,Jannetty tune,Pfadt,JLw6 Audison&Hertz,7/4/09 2GIFKIEJ6A9123779Del 7/10/09
Former Camaros 72 LT1 Z28, 86 z28 [SIGPIC] |
04-23-2010, 11:39 PM | #26 |
Drives: 2016 Camaro SS Join Date: Jan 2009
Location: Rochester, NY
Posts: 529
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RWTD, try our OTR intake, has a much better MAF reading, ask any other shop that has tuned our kit and the other one, just FYI. We tried splitting the air path when we were developing our system, it doesn't work right no matter where you put the MAF sensor, or how you try to baffle it.
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04-24-2010, 05:47 AM | #27 | |
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04-24-2010, 09:40 AM | #28 |
Drives: 2010 2SS RS L99 Join Date: Oct 2008
Location: BUTLER, PA
Posts: 531
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an old tune (prior to learning about the fuse pull, SLOW L99) and tune 3" Vararam = smooth idle and no stumble, tune will be tweeked and will be dyno'd again, but just too busy, NO regrets, I like the proformance.
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