Elda Engineering Turbo Kit
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I'm loving this system, when it comes out and you need to take a break with all of the money we give you, come over to Hawaii. If I happen to be having any problems with my system while I'm trying to install it, I'll just ask you while your here. 
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From: Washington State
Originally Posted by Wael El-Dasher,Nov 5 2004, 10:09 PM
The air/water intercooler was selected based on frontal area and intercooler efficiency. To get the same efficiency from an air/air, we would need to enlarge the opening, it also could present problems with the radiator. The air/water in considered by most OEM as the proper way to cool the charge air, observe, Mercedes, Jaguar, Lotus...etc. The air/air will require much more room as well as an increase in tubing length, which creates a larger pressure drop, so the turbo needs to push harder to create the desired boost pressure which leads to increased charge temp, so the intercooler needs to be larger...etc.
I believe the air/air is a good economical choice as it requires less parts and thus reduces costs. There are plenty of people driving around with air/air intercoolers with no problems, but our system was designed to run on air/water. I am sure it would be fine with air/air, but our calculations indicated the air/water is a better choice for this particular setup.
As far as testing, we monitored charge temps, this summer in Texas and we've found the system able to maintain the charge temp coming out of the intercooler within a few degrees from ambient. Under sustained boost operation, the system has not shown an increase in charge temperature over NA application. Observing the air temp using the OBD II scan tool, we've seen the temps drop with speed.
Keep in mind that the turbo selection is important in the efficiency of the intercooler, along with path length, number of turns in the system, pressure drop...etc. The setup functions as a balanced system, hence my preference to calling it that. It is a system, not a kit in my view because of the inherent balance, and changing any part of the system has an effect on the rest.
Pressure drop plays a big role in the charge temp, as well as the shielding, and the ball bearing cartridge, as well as the water cooling for the turbo as well as the 1.25" radiator...there are really so many factors to consider.
I will emphasis that our goal was to make a good streetable system, where torque in the midrange is addressed.
cheers
W
I believe the air/air is a good economical choice as it requires less parts and thus reduces costs. There are plenty of people driving around with air/air intercoolers with no problems, but our system was designed to run on air/water. I am sure it would be fine with air/air, but our calculations indicated the air/water is a better choice for this particular setup.
As far as testing, we monitored charge temps, this summer in Texas and we've found the system able to maintain the charge temp coming out of the intercooler within a few degrees from ambient. Under sustained boost operation, the system has not shown an increase in charge temperature over NA application. Observing the air temp using the OBD II scan tool, we've seen the temps drop with speed.
Keep in mind that the turbo selection is important in the efficiency of the intercooler, along with path length, number of turns in the system, pressure drop...etc. The setup functions as a balanced system, hence my preference to calling it that. It is a system, not a kit in my view because of the inherent balance, and changing any part of the system has an effect on the rest.
Pressure drop plays a big role in the charge temp, as well as the shielding, and the ball bearing cartridge, as well as the water cooling for the turbo as well as the 1.25" radiator...there are really so many factors to consider.
I will emphasis that our goal was to make a good streetable system, where torque in the midrange is addressed.
cheers
W
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From: Franklin Lakes
Originally Posted by 2001YellowS2K,Nov 6 2004, 11:54 AM
I new it would not be long before someone would have to chime in with some S2K Hating, every thread on this site atleast one person has to come in and hate! 
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From: houston
Originally Posted by fperra,Nov 6 2004, 02:12 AM
This is the biggest bunch of BS I have heard on this forum in a long time. Water cooled intercoolers are fine for what they do, but with this post, its time to go buy a pair of boots to keep the BS from getting in my shoes.
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From: Washington State
My comments had nothing to do with the overall design of the kit. It looks like a well engineered one that I would consider for myself if I was keeping stock internals. My comment has to do with the "justification" for using the water cooled intercooler. They may be OK for an occasional foray into boost, but for spirited driving when you are on boost extensively, you will end up loosing HP as the water cooling builds up heat that it can't dissipate fast enough. I remember watching a dyno tuning session on a Vortec SC Mustang that had an air/water intercooler. The guy was trying to tune his ECU, but no matter what he did, every successive dyno run, he would lose power. The dyno operator finally suggested he fill the intercooler reservoir with ice to cool the charge down. Sure enough, this solved the problem. But it has amazing how quickly the ice cooled water warmed up.
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From: St. Louis
Originally Posted by Stratocaster,Nov 5 2004, 04:15 PM
Funny you should say that. I talked with Wael about just that. How much would you be willing to pay for that as an option? The thinking was that is added little to the performance of the kit and would bring the cost up too. That was the down sides to it. Now you just have to justify what it is worth in $$ to you? That is the question?
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From: Connecticut via Abu Dhabi
Originally Posted by fperra,Nov 6 2004, 03:12 AM
This is the biggest bunch of BS I have heard on this forum in a long time. Water cooled intercoolers are fine for what they do, but with this post, its time to go buy a pair of boots to keep the BS from getting in my shoes.
If the air/air was the better choice we would have used it, after all its about 1/2 the price, as well eliminates the cost of the 6 molds required to make the castings and shaves 4 weeks from making an intercooler.
W
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Originally Posted by fperra,Nov 6 2004, 12:10 PM
My comments had nothing to do with the overall design of the kit. It looks like a well engineered one that I would consider for myself if I was keeping stock internals. My comment has to do with the "justification" for using the water cooled intercooler. They may be OK for an occasional foray into boost, but for spirited driving when you are on boost extensively, you will end up loosing HP as the water cooling builds up heat that it can't dissipate fast enough. I remember watching a dyno tuning session on a Vortec SC Mustang that had an air/water intercooler. The guy was trying to tune his ECU, but no matter what he did, every successive dyno run, he would lose power. The dyno operator finally suggested he fill the intercooler reservoir with ice to cool the charge down. Sure enough, this solved the problem. But it has amazing how quickly the ice cooled water warmed up.
Perhaps next time you could try asking specific questions and bring up your concerns with Wael, since he posts here frequently, rather than claim he is full of shit and then back it up with an observation of a single mustang on a dyno in unspecified conditions. You are the only one bringing shit into this forum at this time.Nate.