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Old 12-08-2009, 01:07 AM   #1
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Exclamation Vararam CAI Testing on Dyno at England Green Racing (Pix, Vids, RESULTS!!!)

First, let me send out a HUGE "thank you" to Patrick from Vararam for bringing me over to Houston today to do some "testing" of production units and other prototype units. I honestly had NO idea just how much thought went into the construction of the intake, the type of filter to be used, positioning of the MAF sensor, etc, etc, etc (lots that go into this!). Along with that, a HUGE "thank you" needs to go out to the guys over at England Green Racing (Jason and Stephen) for hosting our testing time on their BAD @SS dyno in a GREAT shop! THIS is the type of dyno I have been yearning for since the install of the Stainless Works exhaust system. Land/Sea correcting dyno that puts out SOLID numbers......not like the first crazy "STOCK" 406rwhp #'s I got when having my exhaust put on with a Mustang dyno.

Now...onto the good stuff to try to make this short and sweet....I'm freakin' tired and was falling asleep on the Questions will be answered tomorrow when I'm awake and have a bit more time...

Left the house at 8am and got to England Green (Houston, TX) at 11am where I met Stephen and Jason (owners of England Green), a few more guys from the shop (forgive me for not remembering names...ugh...I'm sorry and suck at this) and Patrick from Vararam. We immediately pulled the car in and strapped it down to the dyno.

The first two runs were done with my current exhaust set up. This includes a complete Tom Henry exhaust system built by Stainless Works and includes long tube headers w/ 2" primaries, high flow cats, x-pipe, 3" pipes, chambered mufflers.


1st Pull

2nd Pull

Then, we added a production Vararam unit and ran it on the dyno. The air filter size was 2.75 inches and did not perform as well as the 3". Therefore, Patrick, on the spot, decided that stock auto V8's got 2 3/4" filters and manuals are going to need 3" filters. Really, so much that goes into this...and decisions upon final production pieces are still being made.

We did several test and tune runs with different units changing the positioning of the MAF, different size air filters, etc. I'll skip those videos and move on the end results...

Lots of stuff going on....


6th Pull:
12.3AFR the math...for those that don't believe...

28.4tq increase
25.4hp increase
ON THIS RUN...the #'s we gave out earlier and on the graph were on the final run.


7th Run:

The car NEVER left the was raining and was 60 degrees...nasty driving weather...(although the plan was to drive it, we decided not to). We left it on the dyno the ENTIRE day out there. So, NO learning curve for any of this. Just straight up old intake from GM (which really isn't that bad at all) to the Vararam unit that put out these numbers.

A few intakes have been shipped out. Auto stock car units are done. They should be getting 2.75 inch filters...and they LOOK GREAT! I got to hold the production unit and it really is impressive. You guys are going to love it.

V8 manual cars get the 3" was decided today by the numbers put out by my car. Also, depending on your application (mods wise...exhaust, etc), you might need the 3" for the auto car. See...there is just so much that goes into this. You can't just take a 2.75 inch filter and toss it on a car with long tubes when a 3" filter gives you 10 more hp...or even more (as shown today). All this testing is being done to give YOU the BEST possible CAI for YOUR application...not a general run of the mill, "everybody gets the same unit to save ourselves on production costs". Nope... From what I understood, there will be two versions for the V8 Camaros now. I'm going to head back up there in a week or two as we are going to toss it BACK on the dyno again with the production unit and 3" filter (using a test unit right now that was bonded by Patrick, not by Green Filters). This unit should put out (after some repositioning with the MAF) another 7tq and 5hp. Yep...that's right.

But, we'll get those numbers then.

I hope I was able to answer some questions this far...I'm trying to remember everything that was asked this far and get it all done. No tune on the car...OH! The TRUE "ram air effect" will give the car about a half to 3 quarters of a point more in AFR...bringing it from a good 12.3 to close to a 13.0 bringing even MORE hp that what is being shown on the dyno. Correct...the dyno numbers show GOOD numbers....but not TRUE numbers of the ram air intake.'s just getting better...

Once the final production figures are found for the V8's (and it sounds like he's got it wrapped up now), he's going to start on V6 units.

The website IS complete. They are proof reading the information and have a few grammatical errors they are fixing as well as editing a video or two. There are PAGES of information on this car...videos, dynos, numbers, AFR numbers, ETC ETC ETC!!! There was NO stone left unturned. Yes...I saw the site info with my own two It's there. It'll be up shortly, I'm sure. But, "ok" simply does not cut it for Patrick (as I found out ..). He really does expect perfection.

Ok...I can't remember anything else right now... Again, I hope this info answers some questions. Have fun and enjoy the #'s.
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Old 12-08-2009, 01:28 AM   #2
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Nice. Looking forward to info on the V6 version.
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Old 12-08-2009, 01:33 AM   #3
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freakin' sweeeeeet! I'm hoping that maryland speed or another speed shop will wind up with a few in stock this month
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Old 12-08-2009, 01:36 AM   #4
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Time to watch this and respond later.

EDIT: Sweet. Looks like I will be grabbing one of these at some point as well.
Blue Rush, 2010 SS [Car of the Week 3/22/2010] Traded in on...ZLZBUBB, 2013 ZL1
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Old 12-08-2009, 02:34 AM   #5
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The thing that sticks out here is that you already have a full exhaust with LT's which improves the numbers somewhat. I'm not bashing, just pointing out that the typical owner will not gain that much from just the intake and no other mods. Those are very nice numbers though.

Why use 2 different filters? Why not just put 3in in all of them and call it good? Surely there is no situation where the 2.75in is better than the 3, is there? You know someone is not going to like their end result and complain because they got the "small" filter. Looks like you had a great time but why are they still testing filter size and maf location? With having several test units out and all the testing that we heard about, it seems like they would have already had this stuff lined out by now.
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Old 12-08-2009, 06:28 AM   #6
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How much HP can the 3" version support? Can it support and not restrict a supercharged car pushing say 15lbs boost?
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Old 12-08-2009, 07:10 AM   #7

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The Vararam for the Camaro does not support a supercharger at this time. I asked Patrick about it on the tele.
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Old 12-08-2009, 07:31 AM   #8

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Old 12-08-2009, 07:42 AM   #9

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Maybe it's just the dyno, but with your mods, you should have been putting down 400 minimum...
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Old 12-08-2009, 07:44 AM   #10
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I agree, a stock car will not see nearly the gain. Your car was begging for more air with the headers and 3" exhaust. You probably dont have cats either. If you are seeing 25hp a stock car should see 15hp.
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Old 12-08-2009, 07:46 AM   #11
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You are welcome by our shop any time Doug.

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Old 12-08-2009, 07:48 AM   #12
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Here are the pics I took... Robert is the young mans name who is strapping down the car...
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Old 12-08-2009, 07:59 AM   #13
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Watching. Waiting.

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Old 12-08-2009, 08:02 AM   #14

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Nice Job Guys.

Do you have the Fuel Trim information?

Do you have the Timing and Knock Logs?

Why did you only make 2 baseline runs but 7 with the Varraram?

Just an Observation.

Some of that power is coming from fooling the MAF, The MAF is reporting less air than is actually flowing in to the engine due to MAF Clocking and how Air flows past the sensor hugging one side.

When the MAF reports Less Air then Actual 2 Things Happen, The A/F is leaned and the Timing is advanced.

So in essense the car is being tuned in that respect Via MAF Fooling.

What do we do to find power in a tune? We Clean up the A/F and advance timing.

LS3s with Headers and a Tune put down 410 RWHP with Stock air box and 420 with Most Aftermarket Air intake systems so your right in line with everyone else.

So How much of the power came form actual air flow and how much of the power came from MAF error?

I would say a 50-50 split

Were did the 6 HP and 4 lb torque go on the last pull, I think I know, Computer learning out Knock from too much timing due to maf error.

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