At the last few get togethers we recruited a few more guy's Should have about 40 cars this month. The car shows and Corvette lunches prove to be very important as far as spreading the word. Roger and I have attended the last few and I have 2 more planned this year as well as a few other guy's doing monthly events.

 

Okay I will respond to your facts CB.

A. Agreed, but I think the idea here is to select the highest performing air intake system. Althouth I do believe the vararam will out perform a vehicle with just the air cleaner off. The reason for this is the car would recieve cold air from outside the engine bay.
B. Ok, your over my head on this one. Maybe you can explain why the vararam significantly out performs other aftermarket intakes.
C. Well CAI seems to be the accepted term. Cold, cooler, ambient you choose.

The vararam significantly out performs other after market intakes. This includes intakes that receive ambient air. The only thing I can see the vararam does that the others do not is channel the ambient air in through inlet tubes, (ram air).

I am at a point in this discussion where I have a hard time just accepting some one quoting a physics book. I have read enough reports from other forum members and used the vararam on two C5s with several hundred qtr mile runs to know that the vararam does indeed outperform the other designs. Now to me the only relevant discussion is why? I do not know. The fact the air is rammed into the inlet tubes intuitively seems to be a factor, but some people who seem to know something about physics say that is impossible.

Well it may be impossible. I have to doubt it though.

 

Gary, I just don't know what to say. You cannot get more air into your engine unless you compress it. Forget physics. EB himself posted he knows guys with the Vararam that removed the so called filter and still ran the same. What does that tell you? It outperforms because it doesn't filter.

Inlet tubes are the worse design I have ever seen. Rectangular, small and have bends. Where are you getting ram air? Do me a favor. Go to google and do a search on dynamic and static air. I think then you'll see the light.

I'll call tonight regarding email.

 

And that is the naysayers big dilemma, Shurite.

They argue till they are blue in the face that there is no ram air, no cold air............................... but then offer no explanation as to why the Vararam outperforms the other intake systems. Thats even IF they acknowledge that it does. The testing which I did and the reports of others clearly show that it does. Very few are denying now that the Vararam works.

I am speaking specifically of the guy who calls himself "The Vette Guru". He attempts to use a "fluid mechanics" argument that ram air does not exist in automobiles. But from what I recall, does not even acknowledge that the Vararam outperforms the others. This makes it convenient for him . Hence he does not have to offer any explanation as to why the Vararam kicks the others in the ***.

To Korreck's credit, at least he has offered up what he thinks is an explanation for the Vararam's superior performance, even if it is off base.

One guy, EHS, who argued against the Vararam and for the Blackwing until he was blue in the face, has seemingly disappeared from the forum

He pretty much left Korreck to "face the music" by himself as it were following my performance results.

I have not seen a post from EHS since 4/15/05, the day befor my historic runs proving the efficacy of the Vararam.

Which brings me to the response by CB99Coupe. A question for him.

If there is no ram air and no cold air, then what explanation would you offer for the Vararam's superior performance vs the Blackwing?

 

One advantage of the VR that has not been discussed is the fact that the VR is drawing cold air (ambient air for those that want to play on words) even when the vehicle is stopped. This is a big advantage at the starting line. Underhood temperatures can easily reach 140* and most CAI don't have this advantage.I have opened up the fog light area and my inlet temp.does not aproach ambient until I reach the traps.Two things happen under these conditions:

1. The PCM starts to pull timing when the IAT reaches 90*

2. Power is lost because of the hotter air. The standard correction for temp. is the ratio of actual temp. divided by the temp. at standard conditions (usualy 68* F) The ratio is in absolute temp (ie. 460 + temp. in *F ) so this can be a large amount of horsepower.

Even those systems drawing the air through the shroud are drawing hotter than ambient when the vehicle is stoped.


I monitor my IAT continuously at the strip and keep my hood open as long as I can befor I stage.My best times and trap speeds ALWAYS come when I am able to keep my IAT close to ambient at the line.

 

I do the same,what is your intake air temp when say cruising at 70?

 

Richard, I just don't know where to start with you. What makes you think I'm drawing warmer air than you are. Just the opposite, it's cooler than yours. My Blackwing is a sealed unit and only draws through the opening in the shroud. You're drawing much lower and getting heat off the pavement.

I looked at your mods and I don't see how you can run heads up. I assume you bracket race. If so the worse thing you can do is try to keep your engine cool. You cannot launch at the same temp each time so it would be impossible to predict your ET.

Last but not least, a well tuned car does not pull timing at 90 degrees.

 

I am usually at ambient temp.

 

Bob, You did not read my post correctly. I said that the VR is drawing cooler air than you or I. Did you ever measure your IAT at idle? You can't believe that drawing the hot air in front of your radiator at idle is anywhere close to ambient. Measure it some time if you don't believe me. I have no problems with the the rest of your comments. I only run my car on test and tune days/nights. I am only interested in geting the best times for my combo and enjoy trying different combinations of mods/tunes etc. I do not have a roll bar and with my times I can only run on test and tune days.I agree that a good tune will not pull timing at 90* but not all of us have the means to do this( I only use a preadator to tun with.) Also if you are running 90* and hotter you will not be able to run as much S/A and thus are leaving HP on the table.

 

Just wondering because i have a rm racing twin flow and im never closer than +3 degrees from outside temp.At a stoplight or sitting i go all the way to 15 degrees above ambient.It will never get to ambient for some reason.I see the points made as to cooler air entering the system,but ram air?I would think it would take ALOT of forced air to enter the intake to even equalize the vaccum of the engine.BUT,i guess if my engine is a -20 psi normally at wot,then if i can even get it to ---- -19,theres that much less stress on the engine.

 

You're right but only at idle. I did reread your post and maybe I still don't get it. This is what I was referring to: "One advantage of the VR that has not been discussed is the fact that the VR is drawing cold air (ambient air for those that want to play on words) even when the vehicle is stopped. This is a big advantage at the starting line."

That's only true at idle and doesn't impact my performance. Look at the track temps. With the VR you're drawing hot air but off the pavement and not the radiator area. I think it's a wash.

 

The "reason" is because you do not have a Vararam. If I am monitoring my IAT it is always equal to or within 2 degrees of ambient. And usually equal according to my external temp display on the HVAC readout.

At a stop light or sitting I never get to more than 3 degrees above ambient.

The way the Vararam is designed, the only air it can take in is ambient air. Which is "relatively speaking"......cold air when compared to underhood air.

 

I have RM twinflow also.My IAT goes up at stoplights also and that was my point about what happens at the dragstrip. Click on my profile and look at my setup for the license plate area. This has helped bring down the temp. faster.I am usually at ambient temp. within a mile at all roads speeds of 40 mph and higher.i would not worry about 3* you are still much better than a stock vehicle. 3* is not going to cost you any HP.

 

I don't agree. Look at EBs' post. He is running at ambient at all times even at Idle. It does take some time for your setup and mine to get to ambient. This is in the most important area of the race.Most races are won off the line.

 

Most races are won with a quick RT and a good dial in. I run events once or twice a week. Doesn't matter to me how much hot air it pulls in as long as it doesn't affect my consistancy. Tracy Lewis has posted I have one of the most consistant C5's he's ever seen. If you don't know him, they race for a living.

 

I believe that Tracy Lewis also runs a Vararam.


http://forums.corvetteforum.com/show..._id=108&arch=1

 

I have no argument with that.We have different goals,I am looking for the best et/mph that my car is capable of and you are looking for consistancy.

 

yankeevette I agree with your post except for one thing. It has been brought up in this post, and I also pointed this out a couple of months ago in a previous CAI pissing contest.

 

He does. He also posted a gain of .015 as close as he can figure. A long way from .15/.30. He also uses the car primarily for racing. Doubt he would have it on a daily driver. Raining here tonight EB. At least it cooled down.

 

Well I have a 160 thermostat and my fans are programmed to come on early and I have found it fairly easy to always launch at 180. I live in Ohio though and if I were in the south I think I would probably raise my goal launch temp in favor of consistency.