34 replies to this topic

[COBRA SCOTTY]

ilmor, on 19 October 2010 - 04:26 PM, said:

Does anyone know if this heat exchanger provides much benefit on an NA car?  Also, if a supercharger is added later, will there be any conflict w/ the heat exchanger, or will any part or section of the heat exchanger then need to be modified or re-installed?

If you do not have a supercharger than there is no need for the heat exchanger for it is specifically designed for SC applications.

Scotty

[ilmor]

COBRA SCOTTY, on 19 October 2010 - 06:15 PM, said:

If you do not have a supercharger than there is no need for the heat exchanger for it is specifically designed for SC applications.

Scotty

Thanks!  I was wondering, because there is always so much discussion re: reduction of underhood temps freeing up the horsepower.

[GT500-07]

ilmor, on 19 October 2010 - 04:26 PM, said:

Does anyone know if this heat exchanger provides much benefit on an NA car?  Also, if a supercharger is added later, will there be any conflict w/ the heat exchanger, or will any part or section of the heat exchanger then need to be modified or re-installed?

NA cars dont have heat exchangers, just a radiators

[08SGT1977]

springer, on 09 October 2010 - 06:45 AM, said:

...

I did not install the larger radiator or tanks on my car.

...

Same here, stock radiator and tanks; Shelby heat exchanger being installed with Whipple H.O. supercharger.
Also adding the driving lights. All mods being done at TASCA. TASCA will not install the lower aluminum grille if having the driving lights so I opted for the heat exchanger for the cooling and the SHELBY logo to fill in the space in the lower front fascia.

[csm198]

Revan Racing, on 22 June 2010 - 07:40 PM, said:

I have had a lot of people inquire and ask about why there is such a difference with a  Shelby dual fan heat exchanger versus heat exchangers with out fans.

The answer is in ambient and convective heat soak from the heat generated within the engine block.

When our cars are cold and we start them up and get going they are crisp and have tons of power because they are obviously cool.  So what happens to many of us is we drive the car after it has gotten up to operating temperature and then we park the car.  Whether you run in for a sandwich or whatever the car is sitting in a parking lot or your driveway after being warmed up and the operating temperature of the car is likely close to 180-200 plus degrees.  When you let the car sit all of the heat from the block permeates the engine and subsequently the intercooler and the fluids within the intercooler and radiator causing those fluids to rise significantly.  So an 30 minutes, an hour or two hours later you fire the car back up and it's completely heat soaked because nothing has been done to reduce ambient temperature because of the convective and ambient heat of the engine permeating and heat soaking the cooling mediums within the engine components.

When you utilize a Shelby dual fan heat exchanger the fans kick on and start to pull the heat from the heat exchanging and intercooling system immediately.  Without fans you will have to drive the car for a good amount of time in order for the air to flow over the heat exchanger and cool the intercooler/heat exchanger fluid down to a point where timing is not pulled if you can get it to that point.  Usually a long cruise on the highway can remedy the problem however stop and go traffic is brutal and difficult reduce the ambient temperature after a re-start.

The concept of the dual fans is that after the car has sat and gets heat soaked from sitting you immediately begin the process of removing the heat which gets you back into the power band much faster and gets the timing and spark advance retard point back to a point where it is under control and allows the ECU to provide you with maximum timing and spark advance.

In multiple data logs I have seen that the recover time of the intercooler fluid is much greater with the fans versus a non-fan heat exchanger.  This is even faster when distilled water is utilized versus anti-freeze which is designe to retain heat, thus the reason why it is called 'Anti-Freeze', it holds heat.

A lot of people have said that I don't 'Race' my car.  You don't have to 'race' your car to experience and utilize the benefits of a Shelby Dual Fan Heat Exchanger even if it is a daily driver.

Get the heat out as soon as possible and as quickly as possible.

Many drag racers use my heat exchanger with great success when they run back to back to back runs in something like True Street.  For example, a member on Team Shelby, Kostas, actually improved his ET after each run at the NMRA event at Bradenton.  His driving was good and his car wasn't pulling timing even as he went through the waiting time between rounds when you are not allowed to open your hood.  And he doesn't have a trunk reservoir where you can access the trunk in a true street event.  If he had no fans on the heat exchanger the idle temperatures would accelerate and his ET's would have been lower due to heat soak.

Please feel free to post your questions and I look forward to answering them.

Thanks

Van Collier
Revan Racing
561-445-7702
dvancollier@gmail.com

How long would it take a shade tree mech to install this system?
I have a paxton and front brake ducts, will any of this have to be modified?
Does it come with all brackets I need?
Does it come with instructions for wiring and installation?

Thanks

[CudaFly]

csm198, on 21 December 2010 - 07:46 AM, said:

How long would it take a shade tree mech to install this system?
I have a paxton and front brake ducts, will any of this have to be modified?
Does it come with all brackets I need?
Does it come with instructions for wiring and installation?

Thanks

I did it in a day but I had Van from Revan Racing in my garage helping since it was basically used as the prototype for the Shelby SGT/SC cooling kit.   Count on a full day for the radiator, the heat exchanger is a couple of hours with wiring being the longest part.

The radiator is not an easy install with the Paxton but I consider the cooling upgrades the the second best mod I've done to the car (SC being 1st) because of the consistent performance improvements year round, big difference in power after the motor gets heat soaked (20-30 minutes).

I removed the lower radiator support bracket and dropped the stock radiator out of the bottom (no fun).  Getting the wider radiator to fit with the Paxton requires a little fabrication but was totally worth the effort it in my opinion.

Power and heat go hand in hand so anything you can do to efficiently bleed off excess heat from your motor is money well spent, otherwise you are losing a lot of power that you already paid for in a supercharged car.
  
See these posts:

http://www.teamshelb...post__p__700211

http://www.teamshelb...post__p__625993

Edited by CudaFly, 21 December 2010 - 03:38 PM.

[csm198]

got mine on order. Merry Xmas to me.

[shelbytexan]

csm198, on 23 December 2010 - 05:33 PM, said:

got mine on order. Merry Xmas to me.

Me too. Between the heat exchanger and clutch install i should be in chapter 11 or is that 7. Merry-Christmas.

[csm198]

I hear that!!!

[kahmann]

NVM

Edited by kahmann, 25 December 2010 - 10:28 PM.

[RogerS]

One of the first units to be installed was a proto-type unit we installed on the car I am currently driving. We began with the unit designed for the 5.4L engine. First the brackets for the radiator needed to be moved approx. 1" lower for the expansion tanks to fit and locate properly under the hood. This is specific to the 4.6L engine and the Whipple SC. With the KB there is a reverse location on the cold air intake and the bracket for the power steering does not require relocation.

At the time we also were including the power steering reservoir as part of the tank kit. Early design had a couple of engineering flaws and this needed to be relocated on the driver fender well with a custom bracket. All were corrected. I do not recall if we are still including this piece in the kits or not. This you would need to check with SPP Representatives.

On installation and potential interference,  the car was originally equipped with first generation brake cooling ducts. These were manufactured in the speed shop and custom fitted to each vehicle. We found that with the brake duct or driving lights and not the combination of both there were few obstacles in fitting the Heat Exchanger for the Supercharger. It will not fit with both, driving lights and brake duct combination kits, installed without major modification.

Hope this provides a little background into the initial development of the product.

Roger

[speedyburd33]

I guess i'm bringing back an old one here...
I just got my GT/SC conversion and i had the upgraded FRPP radiator installed.  What would be the next best mod (or combination of parts) to combat the heat soak?  Heat exchanger? Upgraded tanks? I'm not sure which way i want to go from here.

[Jer]

speedyburd33, on 14 September 2012 - 06:54 PM, said:

I guess i'm bringing back an old one here...
I just got my GT/SC conversion and i had the upgraded FRPP radiator installed.  What would be the next best mod (or combination of parts) to combat the heat soak?  Heat exchanger? Upgraded tanks? I'm not sure which way i want to go from here.

I have the Shelby/C&R radiator and HE on my GT/SC, and have NEVER had a heat soak issue, even after flogging the car on-track at the recent Shelby Vegas Bash, AND driving the car pretty hard in the desert this past (hot) summer. Very impressed. I also have upgraded tanks, which I'm sure don't hurt!

Jer

[speedyburd33]

I'll have to see how it does after some prolonged hard driving and go from there.  Maybe i'll start with the HE and then do the tanks.  It seems like the tanks wouldn't work well since they are metal and the tanks themselves could get hot easily.

[csm198]

springer, on 09 October 2010 - 06:45 AM, said:

1. Does the heat exchanger conflict with any other items or accessories, for example, brake cooling duct installations?

2. How long should it take the shadetree mechanic to install?

3. What does the finish install look like, i.e., do the SHELBY letters show up at the lower grille area or where?


I just had SA install my Revan heat exchanger in Las Vegas. Prior to my car going to SA,  I checked locally with a couple of speed shops and was quoted from $150 to $200 for the install.  Since my car was going back to SA, I had the install done there.  The install instructions are pretty straight forward, and a "shade tree mechanic" should not have any problems installing it.  

The heat exchanger does interfere with the front brake ducts, if you have them installed, but from what I know, the ducts can be modified to make them work.  ( I do not have the front brake ducts.)

The Revan exchanger is very well made and is paint-stamped "SHELBY"  across the front which is visible through the lower grill opening.

I did not install the larger radiator or tanks on my car.

Hope this info helps.

Well I am out on the heat exchanger. I do have the original ducts . I am glad I found out about this before I started tearing into this project. No matter what simple strait forward project I do, It always ends up being a royal pain int he assphalt.

Oh by the way I have a new in the box heat exchanger never even opened with the shelby logo for sale.