[70454]

Originally Posted by Blackdevil77

I think unless you drive around with the hood open, the CAI won't benefit much on these cars. Opening the air box with the hood open just shows the kind of gains you would see with a CAI…on a dyno with the hood open. If they opened the air box, closed the hood and did the pull, I bet the numbers would be similar/the same to stock.

Once in my Shelby I was at the track, waiting in the lanes with the hood open. Everyone started going all of a sudden so I had to rush, close the hood throw the helmet on, start the car and get ready to run. After my run I noticed I trapped over 2mph MORE than I've been trapping all night. When I parked, I noticed my hood was open, it didn't latch all the way. Closed the hood all the way, made one more pass that night and my trap speed went back down to the norm.

You get it and so does Tsloper.

[70454]

Originally Posted by TSloper

How do you know the MAF readings didn't just get skewed leading to a leaner AFR and/or more timing? Without logging the data and looking at it closely you haven't proven anything.

Exactly I'm working right now so I will try to look at some of the data I have when I get off work and I'm at home.

If people want to buy a CAI system go ahead. I was just trying to show that you can get similar results by trying different things. I'm not biased in this discussion or topic and not trying to sell anything like the vendors/companies job is to do. Just food for thought and trying to open some peoples minds.

[TSloper]

Originally Posted by 70454

I'm guessing the Dyno your Camaro was run on was a Dynojet and not a Mustang Dyno. Mustang Dynos always have lower numbers than Dynojets unless you skew the input numbers of car weight and etc. that Mustang dynos let you input into the run.

Some of you are missing the point to the test. The CAI will be better than the stock intake no doubt but will it provide any more hp than what this simple test run was or if I just dropped a different filter in. That was the point of the test. Yes hopefully we can agree the stock intake is restricting to some point.

Not a single vendor has proven the stock intake is restrictive on a stock engine. They either should provide pressure drop data (should have been done during R&D) or provide dyno runs showing stock vs CAI (with MAF table recalibrated against a WB sensor during the PE operating range). The dyno runs should be done back to back. This will give a true picture of what the CAI is doing or not doing to enhance performance over the stock intake.

Tim

[70454]

Originally Posted by TSloper

Not a single vendor has proven the stock intake is restrictive on a stock engine. They either should provide pressure drop data (should have been done during R&D) or provide dyno runs showing stock vs CAI (with MAF table recalibrated against a WB sensor during the PE operating range). The dyno runs should be done back to back. This will give a true picture of what the CAI is doing or not doing to enhance performance over the stock intake.

Tim

I agree with you. You are one of the few people I see on here that don't slurp up everything the companies/vendors tell people on here.

A board member on here that lives by me has a Cold Air Inductions intake so I'm going to ask him if I can borrow it and take it down to JMB's shop and do some runs on the dyno with it on and the hood opened and then hood closed. vs stock intake vs opened air box. So hopefully I can do 6 runs and then let you members know the results. It probably won't happen for a couple of weeks because Justin is so busy which is great for him but bad for me.

[Boilermaker128]

Even if the gains are tiny I'd still run an aftermarket or gm upgraded intake just for the sound gain. But thank you for running a small test for the community.

[70454]

Originally Posted by Boilermaker128

Even if the gains are tiny I'd still run an aftermarket or gm upgraded intake just for the sound gain. But thank you for running a small test for the community.

No problem I'm no car genius/scientist but I do what I can and hopefully it helps. I actually don't like the sound of the Cold Air Inductions intake but I'm not a big fan of noise. I don't need super loud exhaust either but again personal preference. I was just trying to do a test that was unbiased with no other motives involved such as I need to make numbers look good so people will buy my product.

[TSloper]

Originally Posted by 70454

I agree with you. You are one of the few people I see on here that don't slurp up everything the companies/vendors tell people on here.

A board member on here that lives by me has a Cold Air Inductions intake so I'm going to ask him if I can borrow it and take it down to JMB's shop and do some runs on the dyno with it on and the hood opened and then hood closed. vs stock intake vs opened air box. So hopefully I can do 6 runs and then let you members know the results. It probably won't happen for a couple of weeks because Justin is so busy which is great for him but bad for me.

If you get around to doing this PM me and I'll tell you what specific data needs to be logged to make this test worthwhile. Dyno runs alone won't give the complete picture.

I thought about buying one just to test all of this but if it's a dud I'll be out the cost plus the cost of dyno time.

[70454]

Originally Posted by TSloper

If you get around to doing this PM me and I'll tell you what specific data needs to be logged to make this test worthwhile. Dyno runs alone won't give the complete picture.

I thought about buying one just to test all of this but if it's a dud I'll be out the cost plus the cost of dyno time.

Will certainly do waiting to get a hold of that Camaro6 member that lives by me that has the intake. Hopefully he is ok with me having his intake for a day and doing some dyno pulls with it.

[thescreensavers]

Also it's very common totake the worst dyno from stock and best from "new intake" and say it gained power.

I can show you a dyno that shows a fat gain of power 5-10hp midrange, dyno was done 30 min of each other but no parts where installed just cooled off a bit.

Also 5-10 HP is kinda into the noise on the dyno, looking at a dyno sheet comparing 3 run average for stock vs aftermarket would be best if you see gain all over that's sweet but I personally will not void my warranty for a measly 5-10hp.

I may just buy GMs performance intake will be pricy but it's backed by warranty from GM.

[Sledgehammer70]

Originally Posted by 70454

I'm guessing the Dyno your Camaro was run on was a Dynojet and not a Mustang Dyno. Mustang Dynos always have lower numbers than Dynojets unless you skew the input numbers of car weight and etc. that Mustang dynos let you input into the run.

Some of you are missing the point to the test. The CAI will be better than the stock intake no doubt but will it provide any more hp than what this simple test run was or if I just dropped a different filter in. That was the point of the test. Yes hopefully we can agree the stock intake is restricting to some point.

I am not a fan of drop-in filters and doing so on my 5th gen didn't yield much. But the CAI offering added 12rwhp. But, Yes the tests in the video were on the BBK dynojet dyno, but their results match the mustang dyno down the street.They even told me upfront their dyno is set to not bolster numbers like some and I will see as close to real world numbers as possible. This is also the dyno they use for all their product testing.

My next runs I will snag the full slew of numbers and readings. I have a Mishimoto and a CAI intake incoming and will be doing full runs on both with the same car, same day, same dyno.

[Sledgehammer70]

Originally Posted by thescreensavers

Also it's very common totake the worst dyno from stock and best from "new intake" and say it gained power.

I can show you a dyno that shows a fat gain of power 5-10hp midrange, dyno was done 30 min of each other but no parts where installed just cooled off a bit.

Also 5-10 HP is kinda into the noise on the dyno, looking at a dyno sheet comparing 3 run average for stock vs aftermarket would be best if you see gain all over that's sweet but I personally will not void my warranty for a measly 5-10hp.

I may just buy GMs performance intake will be pricy but it's backed by warranty from GM.

10hp is a fairly wide variance from back to back runs. Maybe after 5-6 runs without cooling off time you will see a gap like that, but that sounds like shitty dyno runs at that level.

Seeing 1-6 hp is what I would consider noise, but that is me.

[Sledgehammer70]

Originally Posted by Blackdevil77

I think unless you drive around with the hood open, the CAI won't benefit much on these cars. Opening the air box with the hood open just shows the kind of gains you would see with a CAI…on a dyno with the hood open. If they opened the air box, closed the hood and did the pull, I bet the numbers would be similar/the same to stock.

Once in my Shelby I was at the track, waiting in the lanes with the hood open. Everyone started going all of a sudden so I had to rush, close the hood throw the helmet on, start the car and get ready to run. After my run I noticed I trapped over 2mph MORE than I've been trapping all night. When I parked, I noticed my hood was open, it didn't latch all the way. Closed the hood all the way, made one more pass that night and my trap speed went back down to the norm.

That is interesting feedback and I would agree the slightly open hood would cause this, but systems like the Cold Air Inductions CAI is a closed system. So not sure how much that would change the tests on that specific CAI.

I am going to do run with the hood open and closed in my next tests to see what the variance is on the specific Dyno I have been using.

[vtirocz]

Originally Posted by Sledgehammer70

10hp is a fairly wide variance from back to back runs. Maybe after 5-6 runs without cooling off time you will see a gap like that, but that sounds like shitty dyno runs at that level.

Seeing 1-6 hp is what I would consider noise, but that is me.

http://www.camaro6.com/forums/showpo...&postcount=113

Your baseline dyno runs that you posted in that thread above varied from 365 - 387hp. That level of standard deviation is much bigger than what you could expect to gain from a cold air intake.

[Sledgehammer70]

Originally Posted by vtirocz

http://www.camaro6.com/forums/showpo...&postcount=113

Your baseline dyno runs that you posted in that thread above varied from 365 - 387hp. That level of standard deviation is much bigger than what you could expect to gain from a cold air intake.

These runs were 4th gear, 5th gear etc. From straight line runs at the same settings shouldn't vary much.