There is no disagreement that highly efficient intercooler would be a great improvement.
But the fact remains that the cooler the air that enters the supercharger, the cooler the air that enters the cylinders.


A cold air intake never actively cools the air - and I don't think anyone claimed that - but it can avoid hot air to be sucked in.
If it does that in case of the C7 and how big the difference is I don't know.


Regards


Götz

 

Absolutely agree with you on this subject. The road or track is all that matters . A car that reaches full boost on a dyno will often loose 1 lb or more and pull timing on the road . A stock LT-4 with a stock intake ,we Data logged last week lost 1.5 PSI and pulled 5 degrees of timing on a 82F day with DA at around 1450ft or so. That's a California day for TX !
WE were doing simple 3rd gear pulls from 2,000 RPM to 6000RPM. The IAT showed 86F during the pulls.

Now ,We cannot speak for other companies, because your question was more of a, in general "someone show me the data question?" and We are in complete agreement with you about that!
That's why at Vararam we produce data from EFI Live data logs with a wideband and we will run a backup system with sensors plumbed into the manifold or induction system or both. We flow bench test the complete induction system as a single unit, both in house and independently. Then we call in multiple local cars to test the same parts we produced the data from. Next step is to send the same parts to tuners in AZ , NY, NJ, FL and LA to name a few. This way other tuners can test the parts and double check the data we see with what they are seeing.
Dyno runs are the very last thing we do. We only do them last because honestly , We know in general how much power a part is making based on the Dynamic flow numbers , MAP pressures , timing and 02 sensors etc.
We do dyno runs last and we only do them because everyone else does them. Its an industry thing , so you are sort of forced to do it at some point. Its like Cam duration , I want the gross number, not the number @.50inches of lift. The industry does it at .50 inches so you have to do at .50inches.
We prefer 1/4 mile passes or 0-60MPH runs without cool down or running on a road coarse wile Data logging.
This produces a far more accurate picture.

When our LT-4 system is released you will see most of this data. That should answer the majority of your questions regarding stock induction vs aftermarket vs say just a drop in filter.

AS is, the LT-1 induction systems that we have tested ,cannot supply a single port in the stock cylinder head manifold throttle body combination without incurring losses. Some not even without a filter ! Without the LT-1 manifold in place the stock heads gain a massive amount of flow. ( Supercharged LT-4)

If the current induction systems can't supply a single port in the LT-1 with the manifold/throttle body in place, how are they going to supply an LT-4 ,let alone a modified one ?
That's just basic flow bench work.

VR Tech

 

So, for an LT1, besides your intake, what else do you recommend for that motor?

 

A simple ported throttle body swap will yield nice gains across the RPM band.

In my case it sharpens the throttle input and is measurable in the quarter mile.

My 17 LT1 picked up right at a tenth in the quarter mile.
My 17 LT4 picked up about 2 full tenths in the quarter mile.

These are results you can feel every time you drive the car.

People get caught up with dyno numbers myself included, but we don't drive around at wide open throttle, A better indicator is to look at the gains where you drive the car the most. Say from 1500-4500 RPM.

 

Okay, I'm on the right track! The Katek throttle body I have definately helped just like you said, throttle response is telepathic.

 

You will see us DYNO testing a new Injection molded Polymer intake manifold on the C-7 LT-1 in the coming weeks.
It has produced gains that are worth every penny and will send our competition back to the drawing board.

VR tech

 

What if I Told you that in a "STOCK" LT-1 there is over 45ft lbs of Torque from 4,000-5,200 RPM and about 40HP From 5300-6,200RPM to be found ?
That would be a very nice bolt on and a must have for heads cam guys !
The LT-1 is no where near its true potential.
VR tech

 

Do you mean 45ft lbs and 40HPbfor the LT1 just via the cold air intake, or does that include anything else, like a tune for exymple ?
These number are impressive.

Regards

Götz

 

I got my mamo TB and AFe CAI, only missing the Xpipe now!! TB is hands down the first one you should get!! Far better than the CAI!! obviously both works awesome together!

LT4 response very well to those mods!

 

Its Not a CAI that I was Hinting at.

Be on the lookout for the upcoming video , there is a sneak peak at the end.

VR tech

 

Where can I find this video ?

 

I believe they are finishing up the editing now. I expect to see it Monday. Then we will get it posted up.

VR tech

 

Thanks, I am realy keen to see it ..

 

There will be several but this one gives you a good picture of the present and a sneak peak at the future.

VR Tech

 

Simply put, what has been and still is the best for C5's & C6's, will no doubt continue to be the best for C7's> VARARAM.

Quicker ET's, snappier throttle, cooler engine and intake temps!

 

YES SIR!

WE are going to debut some new technology that we have been testing the past couple of yrs on the C7 Z-06 LT-4 unit!


VR tech

 

Intersting

 

Its going to be a Rocket!

VR tech

 

LT-1 guys need some too!

 

The LT-1 unit is a Rocket !
There is an LT-1 engine Part on the way that you guys will find very useful.

Tuners / Customers etc.. should take the aero advice though , I found some serious speed there. Aero is exponential with speed !
Plus, every HP added will show greater improvement or at least closer to a 1 to 1 improvement.

VR tech