355 Inner CV boot deterioration, swelling, deformation and cracking problem? .. Nope!

Valid points made.
Another option to consider....perhaps with steel heat shields

 

The reality is that the only way to know how effective or ineffective these new shields are is to but new boots on a car and then use a new OEM shield on one side and one of gothspeed's on the other and then wait. If it takes 8k miles to see the initiation of degradation, with the way most of these car rack up miles we're talking 5 to 8 years or more. I'll check back in 5 years for an update.

 

Dayum....there goes the concept....no endorsement.

'course, nobody questions if they work...they do for sure....just "my idea is better than your product", huh?

 

I have heat shields on my RACE CAR, had them on my Race Bikes.

Drive slow = not much heat
Drive fast = lots lots of radiant heat

Any extra is a big help

Now I need a heat shield was just up on the roof playing with solar panels

 

I hear ya . The Goth shields are very nice.
But some of us just like to tinker .

With the cv boot heat shields....if you leave the oem fibreglass shields for the insulation factor but covered by steel shields for reflecting the heat (a little longer though)....this should have a positive effect on boot life. I have already fiberglass'd a 3/4 inch extension on the oem shields so the next step is to fab the longer metal heat shield covers and ceramic coat them silver.

 

Guys I'm working on a version that are reinforced carbon-carbon formed around a 360deg evaporator core which taps into your existing a/c system. Thermostatically controlled to maintain an arctic environment for your CV boots, introductory pricing is $12,995 shipped.....





Or you can just buy the Gothspeed version

 

Good job Goth. It is things like this that are improving our cars. John it is always interesting to read some of the science behind these things.

 

Sorry to be such a nit picker but what data do you have to support that statement? Have you, for example, measured the temperature of the boots with OEM and your new shields after say 1 hr of typical driving? As I indicated before the unintended consequences of reduced cooling air circulation may well offset the benefit of reduced radiative heat transfer.

By your own statement it takes about 8k miles of driving before degradation of the boots is apparent. Do you have field results for even one car that these shields have been on for 8k miles?

 

I think the CV boots are a life limited item no matter what you do.

This will not prevent future need for replacements.

What I do like about these shields is that when the boot does fail it looks like most of the Grease will be contained within that area and not all over the rest of the engine bay.

The fact is somethings will never last very long. I like the idea of these and if I am not mistaken these are cheaper than the less than the originals, that are easily broken over time. Or its vibration that causes the washer to work through the material.

 

Hmmmmm...

"Unintended consequences of reduced cooling air circulation"

Really???

 

OK I decided to make mine out of Pyrex
A contoured jacketed sleeve that's silver coated. Inside is drawn down with vacuum.

Only slight problem I see is cost. If your willing to lay out cash I can handle the job for you. JPL has been the only one to bite so far.

 

Ask some engineers at Imperial College. Imperial is very strong in fluid dynamics.

 

You saying that due to these shields being larger than the OEM shields they may block airflow around the CV boots...sounds plausible

Goth...any view on this?

But.....

I thought it was radiant heat after engine switched off that did the damage in which case the larger shields should offer a lot more protection to the boots....

What say you?

 

I reckon it's radiant heat that is the destroyer in the engine bay of a 355

 

Ok, let's abandon the tech discussion and cut to the quick. Assuming they extend boot life, by how much?

I would also assume that if you were going to install these shields you would want to replace the boots at the same time to have a "fresh" set up.

 

LOL. Ok I'll guess. They increase boot life by 67.7755442358775% and I see no reason why they could not be implemented with new or used boots.

 

No reason they could not be, but the old boots may have already suffered heat damage.

 

OMG!

 

LOL for real
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Lmao!!

Me thinks the person you are debating this with is a little thick in the head and doesn't see your sarcasm in this

By the way, terrific job on this project Goth.

 

Yes, why change 3 or 4 year old boots when installing these shields? Why change the oil filter with an annual oil change if it's only got 1000 miles on it? Why change tensioner bearing when you change T belts? Some things are just common sense. And of course, why bother asking just how effective something is at doing it's intended job. Whether you do it or not is a choice. But doing it right should not be.

 

Johnk..

Are you alright...?...... you do go on about stuff

Relax.....everything is fine.