DSE Product Preview: Intake Heat Shield for Gen IV (and Gen V?)

[SSGNRDZ_28]

I’m very happy to finally be able to show the heat shield in near production form and report the initial testing results. As you can see it was cold, snow is on the ground, and my fingers are frozen. All testing was static due to the snow and temperatures, however, the results are promising. The heat shield is ceramic coated aluminum. More details to follow.

The net results? IATs are 17 degrees Celsius cooler than without the shield. All of the data is below or being processed.

Please see my Facebook page for more (and higher resolution) photos and videos of the testing:

https://www.facebook.com/dougshelbyengineering

If you have an interest in this product let me know, I’ll be ramping up for production soon.

Doug

IMG_6008.jpg
Feb 2015 With Shield Measurements.jpg
IMG_6011.jpg
Feb 2015 Heat Shield Test Results.jpg
Feb 2015 No Shield Measurements.jpg

[SSGNRDZ_28]

More Photos:

IMG_6032.jpg
IMG_6017.jpg
IMG_6025.jpg
IMG_6027.jpg
IMG_6013.jpg

[XSnake]

Interested depending on price

[SSGNRDZ_28]

Forgot to add pricing is expected to be around $325.

[FrgMstr]

Holy shit! Look at that data. Put me down for the first one.

[Victxv10]

I'll gen5 test it for you.

[TrackAire]

Nice to see a new product and best of luck. I paid like $500.00 for a very small flat sheet of carbon fiber for the closeout panel, lol.....$325.00 for your heat shield sounds like a bargain.

By the way, do you think it will work with the carbon fiber close out panel?.....I'm too lazy to get the car off the lift to look

Oh, and by the way, your results would look even more impressive if stated in Fahrenheit for us non metric types

[IndyRon]

Doug, strong work! I'm interested. Any chance I could get you to make me one in CF for a couple hundred more?

[Victxv10]

Doug, strong work! I'm interested. Any chance I could get you to make me one in CF for a couple hundred more?

Can you ceramic coat carbon fiber?

[Simms]

Interested in Gen V version.

[Vprbite]

For those asking about Celsius and Fahrenheit, you will find this helpful.

9/5 T (c) + 32 = T(f) is the official and exact conversion formula.

But you can do a quick approximation at is pretty accurate for temperatures that aren't extremely high or low by just taking the temperature in Celsius, multiply by 2 and add 30.

For example,
using the true formula for conversion, 17 c is equal to 62.6 Fahrenheit.
using the approximation method 17 c comes out to 64 Fahrenheit.

The further extreme you go with temperature, the less accurate the estimation method is. But it usually is pretty close for weather.


Oh, and this looks awesome and 62 degree lower IAT is freakin awesome. I will be interested to see the difference during high ambient temperatures like we get out here in Arizona. Install is just bolt on? I assume you just have to remove the airbox? Pretty simple DIY or should we have our tech do it? I think I will have to buy one right after I get back from my trip with my buddies next weekend and refill the coffers.

I noticed it says for Gen IV and V Vipers. Does this mean there are fitment issues with a Gen III?

[Junkie]

Really interested in this for a Gen5 with ceramic coating, when can I get it?!

[Vprbite]

Really interested in this for a Gen5 with ceramic coating, when can I get it?!

Do you mean like a jet hot coating like on headers? Do you think that would make a noticible difference in the performance of the part than without? I was thinking it would look awesome painted body color. Or gloss black. Since it isn't that hot there, high temperature paint wouldnt be required, would it?

[Redx]

Put me down for one!

[Nine Ball]

I would like a Gen 5 model. Controlling IAT temps is critical, in these cars.

[Vprbite]

I would like a Gen 5 model. Controlling IAT temps is critical, in these cars.

Don't they pull timing on the very conservative side? Good for keeping your motor in one piece, bad for power during a track session.

[SSGNRDZ_28]

Nice to see a new product and best of luck. I paid like $500.00 for a very small flat sheet of carbon fiber for the closeout panel, lol.....$325.00 for your heat shield sounds like a bargain.

By the way, do you think it will work with the carbon fiber close out panel?.....I'm too lazy to get the car off the lift to look

Oh, and by the way, your results would look even more impressive if stated in Fahrenheit for us non metric types

Believe it or not I'm not a metric type either. Here are the results in Fahrenheit.

Feb 2015 Heat Shield Test Results (Deg F).jpg

As for the close out panel, I did design it with the panel in mind but the ultimate test will be to fit it on a car that already has the panel. That will be one of the items to check off before production.

[SSGNRDZ_28]

Don't they pull timing on the very conservative side? Good for keeping your motor in one piece, bad for power during a track session.

Yes, timing is pulled starting around 86 degrees F. I think this screenshot is from SteveM.

IATSparkAdjust_zps6823a3f5.jpg


Just an additional piece of information. I previously tested the IATs vs speed (and throttle) with some 2nd gear runs. Not surprisingly, the more speed and more throttle the smaller the gap between IAT and ambient temp. What I expect this to mean is that the shield will follow the curve, being most beneficial at low speeds or idle and less of a delta at higher speeds. This said per the timing chart every degree cooler helps gain power.

IAT vs Speed and Throttle Stock 2008 Viper.jpg

I have taken several data points now with the stock configuration. At ambient of 77 degrees F, the IAT under heat soak was 131 degrees or 54 degrees hotter. At 47 degrees F, IAT was 102 or 55 degrees hotter. And now at 23 degrees F, IAT was 86 or 63 degrees hotter. So as you might expect the IAT is further separated from ambient as the temps cool down.

[SSGNRDZ_28]

Really interested in this for a Gen5 with ceramic coating, when can I get it?!

Do you mean like a jet hot coating like on headers? Do you think that would make a noticible difference in the performance of the part than without? I was thinking it would look awesome painted body color. Or gloss black. Since it isn't that hot there, high temperature paint wouldnt be required, would it?

To clarify the current design is already ceramic coated. Without ceramic coating the heat shield will work at first but eventually the aluminum heats up and the IAT starts to rise.

Doug, strong work! I'm interested. Any chance I could get you to make me one in CF for a couple hundred more?

Can you ceramic coat carbon fiber?

As for carbon, the weight gains would be minimal for the cost. The current shield weighs 3.68 lbs. The shape is very complex which is one reason it has taken so long to develop. I think a carbon mold would be super expensive. I still think you'd have to have the ceramic coating to get the maximum benefit and so you'd be back with the same looking part, maybe a pound or two lighter but tons more expensive.

[SSGNRDZ_28]

I noticed it says for Gen IV and V Vipers. Does this mean there are fitment issues with a Gen III?

This design hugs the Gen IV and V airbox. The Gen III airbox is different so a different design would be required.

[XSnake]

Does this have an opening on the bottom for water to escape like the factory box?

[SSGNRDZ_28]

Does this have an opening on the bottom for water to escape like the factory box?

There are two drain holes on the corners of the shield so if it were filled with water it would drain. You obviously can choose to retain the factory rubber drain piece on the bottom of the airbox or remove that, either way it will fit with the shield.

[Voice of Reason]

We need to get this in the hands of a southern Gen V owner pronto for some real world testing. If this works I'd like to buy one before driving season this spring.

[SSGNRDZ_28]

We need to get this in the hands of a southern Gen V owner pronto for some real world testing. If this works I'd like to buy one before driving season this spring.

I agree, I need some more time here to make some tweaks but am happy to send it south. Ideally:

Gen V owner who:
- Is mechanically capable. If this doesn't fit for some reason on the Gen V I need to understand how to modify the design.
- Is comfortable with modifying (cutting / bending) the box as necessary to fit.
- Is willing to do some IAT comparison runs recording ambient and IAT with/without the shield at various speeds.
- Realizes and is OK with the fact this is still pre-production and is still is a bit rough around the edges. (more refinements planned for production)
- Has a friend in the area with a Gen IV and arrow closeout panel who can test fit as well.

The sooner I can get some of these boxes checked the sooner I'll go into production. If the design is universal it will be cheaper than if individual Gen IV and V designs are required.

[FrgMstr]

By the way, do you think it will work with the carbon fiber close out panel?.....I'm too lazy to get the car off the lift to look

No it is not going to be a bolt in with the closeout panel. However I do not think it would be an issue to hand cut the closeout and make this fit. I was already sizing it up last night in my head. Should not be an issue for anyone with a good set of dremel rotors and some sand paper.

Also another issue I see with making one to fit the close out panel is that almost every close out panel I have seen installed, fits just a bit different. You would likely be much better off hand fitting it.

As for carbon, the weight gains would be minimal for the cost. The current shield weighs 3.68 lbs. The shape is very complex which is one reason it has taken so long to develop. I think a carbon mold would be super expensive. I still think you'd have to have the ceramic coating to get the maximum benefit and so you'd be back with the same looking part, maybe a pound or two lighter but tons more expensive.

I do not see any real upside to doing it in CF unless you just want the "its pretty" factor. The coating is key and I think ceramic coating and something as flexible in CF (unless you made it really thick) would not hold that coating well, and not cost effective either.


Send me one! I am not afraid to hack on the close out panel and make some templates.