LMFAO !!!!! OWNED

 

Out of the whole power equation, can someone tell me what percentage of HP and torque increase can be attributed to IC's, as opposed to turbos, programming, intake flow, etc.? Just trying to understand their level of importance in all of this.

 

I hear nothing but crickets from Warsaw...

 

I think F1 is already employing regenerative brakeing Justin. I agree with you, F1 may eventually sound like a bunch of electric glof carts. I prefer the scream of the internal combustion engines turning 18000 rpm.

 

This is a tough question and probably not got a straightforward answer. As you push a turbo to move more and more boost you can begin to reach outside of it's efficiency envelope. The air heats up as a result. Hot air has fewer oxygen molecules and thus makes less power - it's also more prone to KNOCK. The cooler the intake charge the better. If you look through some of the threads here you can find temp graphs that some folks have done showing differences in intake temp between stock and aftermarket intercoolers to get an idea as to overall effect. Bear in mind that if you track a car or make long top end pulls an intercooler is going to become even more important from a heat standpoint since aftermarket coolers will be able to both absorb more heat and bleed off more heat to the atmosphere. For a short blast you probably won't saturate a stock cooler but a longer one will almost certainly do so and so will tracking a car.

Stock intercoolers also represent a flow restriction - they simply have too much of a pressure drop intake to outlet vs a good aftermarket unit. At stock pressure it's probably not all that bad but as you raise boost pressure this becomes more of an issue.

Is it the first thing I'd change? No! there are other areas that are certainly lower hanging fruit than the intercoolers. The exhaust, the stock boost pressure, maybe the DVs - these are all things that probably ought to go first. I think the stock intake piping from filter box to turbo is a big issue too but I'm not sure the majority feels that way yet.

I hope that gives some perspective. My .02 anyway from what I have observed, heard, and read here...

 

Larry, the way I look at intercoolers in my application (which is similar to yours) is that it's more of a benefit to relieving stress on the motor during a 30 minute session, especially during hot summer time heat. For me personally, I don't want more power, but do want to reduce the stress on the motor at the current level. Reducing the IATs while maintaining existing power levels.

Mike

 

It's also obvious that cooler air is nothing but beneficial.... thus when we currently are seeing tuned cars at 1.4 to 1.7 bars which is twice as much as stock boost it simply tells me that your asking a lot from stock ICs... more boost makes the turbo work harder thus exerting more heat...
I find it ironic how in the Japanese turbo car market( subaru, Mitsu, etc) the Ics are one of the first things customers upgrade after a tune and exhaust...
In P cars it seems guys rather spend big bucks on plenums after the TB, or bigger TBs...
expensive silicone hoses etc... I kinda find that odd...
BTW, when I was green I did the same thing... spending XXX dollars on the next mod and the next mod that did absolutely nothing.....
I always tell guys to save up for what they need and not for what they can get at a discount...

 

I've done the exhaust, DV's, have a 1bar tune at present. I'm having some mid-range turbos built as we speak{K16/26 ZC's with upgraded WG's} and want to upgrade IC's, so that's why I'm asking and trying to understand their part and contribution to the whole. I, like Mike, am not going for the highest HP, but rather a mid-range power setup that is about reliability for on track performance. 500+ RWHP is my goal.

 

At that point I'd be looking at inlet pipes for the turbos and intercoolers. Sounds like you have the rest covered. The nice thing is that cooler air with less restriction will make the number you want at lower boost and less stress on everything...

 

agree.. I also can make my end tanks fit any after market silicone hose as long as it slips over a 2.5" OD pipe with a bead... that does free up some restriction as well... however, after market hoses do cost $$$ and not everyone is willing to spend moneys on them...

 

I can vouch for Marek's products. My car was built in the summer of 2007 and since then it has only gotten stronger with Marski's products. His intercoolers has kept my turbo very happy and recently under the supervision of my builder Akram at Motorwerk's we have pulled 39.46 pounds of boost. Everything that I have purchased from Marek is of the highest quality and has held up under extreme abuse (boost). I have listen to every one talk about this limit and that limit but for me personally the only limit we have encountered has been with fuel and spark. I think my car has proven Marek's products, Protomotive's tuning and Akram's ability to build massive power with only 8mm studs. I support Marek's products 100%.

Happy New Year
Robert

 

Landjet where in MD are you located ?im close right over the md line, if you want to link up when the weather breaks you can see my coolers. you can even drive my car.

 

Nice offer and I'll hook up with you once the weather breaks. I'm in the Frederick area.

I have the Samco hoses with the clips.

 

Thought I would toss this out into the water for you guys:

 

that's not an issue since my ICs are made for stock replacement...