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  #31  
Old 01-27-2009, 08:46 PM
RoughSilver92 RoughSilver92 is offline
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Re: ported/polished/coated manifolds 3Q's in 1

OIC. Who did your ceramic? I am seriously thinking about sending my exhaust manifolds out, and pondering the intake(probably to Swain). From the info I have gathered, It seems the general school of thought is to put thermal block on the gasket surface of the intake (and on the bottom of the intake on v8's where engine oil is slashing around down there), and to use a heat radiating coating(Swain calls it BBE) on the top, to help disperse the heat better. On the inside, Swain offers either a "flow coating" or the thermal block. I think the flow coating would probably be better suited for a carbureted car, since they talk about how it enhances the fuel atomization.

In other words, I don't know which way to go with the intake. At the moment, I'm leaning towards thermal block on the gasket surfaces and on the inside, and probably leaving the outside uncoated, since aluminum is a fairly good conductor of heat, I don't see how it would benefit me to coat the outside with a heat radiating coating. On the other hand, aluminum is a fairly good conductor of heat, so that engine bay heat will be trying to get in.

I am sold on the White Lightening coating on the exhaust manifolds, though. And given the design of the stock units, it should be possible to have both the inside and the outside of the manifolds coated.
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  #32  
Old 01-27-2009, 11:45 PM
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Re: ported/polished/coated manifolds 3Q's in 1

Thermal Tech Coatings, Inc.
312 E. Poythress Street
Hopewell, VA 23860
Phone: 877-754-9795

did my intake manifold, Johns valve covers and alternator, Sov13t's pistons, some other stuff.
They also did Bill's exhaust manifolds, and I hear that the coating has flaked off of the exhaust manifolds.
ALL OTHER PARTS THAT THEY HAVE DONE ARE FINE!
To my knownege.

As far as porting the intake, it has been tested to flow much more than any "normal" NA engine can use.
Port matching does not hurt, just dont go too far.
The Outlaw spacers are about 1/3" thick and do block heat well.

More later.
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  #33  
Old 01-28-2009, 11:58 AM
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Re: ported/polished/coated manifolds 3Q's in 1

and they did my intake manifold and valve covers (SVX R&D at its best)
-Bill



Quote:
Originally Posted by svxfiles View Post
Thermal Tech Coatings, Inc.
312 E. Poythress Street
Hopewell, VA 23860
Phone: 877-754-9795

did my intake manifold, Johns valve covers and alternator, Sov13t's pistons, some other stuff.
They also did Bill's exhaust manifolds, and I hear that the coating has flaked off of the exhaust manifolds.
ALL OTHER PARTS THAT THEY HAVE DONE ARE FINE!
To my knownege.

As far as porting the intake, it has been tested to flow much more than any "normal" NA engine can use.
Port matching does not hurt, just dont go too far.
The Outlaw spacers are about 1/3" thick and do block heat well.

More later.
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  #34  
Old 01-28-2009, 09:09 PM
RoughSilver92 RoughSilver92 is offline
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Re: ported/polished/coated manifolds 3Q's in 1

Out of curiosity, what was the deciding factor for using thermal tech? I have been trying to pick the best one, and there isn't as much info on coatings as other mods. I have gathered, though, to stay away from Jet Hot.

I am leaning towards Swain b/c I have read a couple saying that Swain is the only coating that they haven't seen flake, and Swain claims their coating is .015" compared to .002" their competitors use. Of course sometimes I fall for that propaganda a little too easily.
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  #35  
Old 01-28-2009, 09:15 PM
RoughSilver92 RoughSilver92 is offline
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Re: ported/polished/coated manifolds 3Q's in 1

Good info on the intake, though. No need to go grinding away on something that doesn't need it. From the cutaways I have seen of other Subaru heads, it looks like they do a fairly good job on the ports, as well.
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  #36  
Old 01-29-2009, 06:09 PM
RoughSilver92 RoughSilver92 is offline
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Re: ported/polished/coated manifolds 3Q's in 1

I hope I didn't offend anybody
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  #37  
Old 02-01-2009, 10:25 PM
Johnybeas Johnybeas is offline
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Re: ported/polished/coated manifolds 3Q's in 1

Quote:
Originally Posted by svxfiles View Post
Thermal Tech Coatings, Inc.
312 E. Poythress Street
Hopewell, VA 23860
Phone: 877-754-9795

did my intake manifold, Johns valve covers and alternator, Sov13t's pistons, some other stuff.
They also did Bill's exhaust manifolds, and I hear that the coating has flaked off of the exhaust manifolds.
ALL OTHER PARTS THAT THEY HAVE DONE ARE FINE!
To my knownege.

As far as porting the intake, it has been tested to flow much more than any "normal" NA engine can use.
Port matching does not hurt, just dont go too far.
The Outlaw spacers are about 1/3" thick and do block heat well.

More later.
A few questions,

If the intake manifold were polished prior to being coated would it still have the smooth look on top, or would it give it that speckled look, like in your picture?

How much would it be to have the manifold coated by those guys??

If it's not very useful to have the intake ported is it effective to have the exhaust headers ported if the engine is staying naturally aspirated for the time being???

And I'm still curious how much those spacers are.....
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  #38  
Old 02-02-2009, 02:38 AM
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Re: ported/polished/coated manifolds 3Q's in 1

Quote:
Originally Posted by Johnybeas View Post
A few questions,

1)If the intake manifold were polished prior to being coated would it still have the smooth look on top, or would it give it that speckled look, like in your picture?

2)How much would it be to have the manifold coated by those guys??

3)If it's not very useful to have the intake ported is it effective to have the exhaust headers ported if the engine is staying naturally aspirated for the time being???

4)And I'm still curious how much those spacers are.....
1)If the intake manifold were polished prior to being coated I am sure it would be smoother. The speckeled look "is a trick of light and shadow."

2)As I remember it was about $100.0 plus shipping at the time.

3)You have to look at the whole picture of flow. Port matching to reduce turbulance can help flow, but having a 2"id header flowing into a 1.6"id pipe is/can be a restriction.

4)The spacers were less than $100.00.
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The first SuperCharged SVX,
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  #39  
Old 02-02-2009, 08:33 AM
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svxcess svxcess is offline
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Re: ported/polished/coated manifolds 3Q's in 1

Quote:
Originally Posted by Johnybeas View Post
A few questions,

If the intake manifold were polished prior to being coated would it still have the smooth look on top, or would it give it that speckled look, like in your picture?
If the manifold were to be polished, the coating would definitely be smoother. Here is a quote from Airborn Coatings website:


"The Finished appearance of all processes are related to the surface preparation prior to coating. All defects in the surface will be replicated through the coatings. A smooth polished finish is HIGHLY RECOMMENDED"


As I said, I have used both Airborn Coatings and Thermaltech They are both great to deal with and I have not had a single issue with the quality of their work and attention to detail.

,

.
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Last edited by svxcess; 02-02-2009 at 09:31 AM.
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