raised blower top question

S

slow_v6_stang

Registered User
i see how they make aftermarket raised blower tops. would a simple spacer between the blower and the top do the same job? i have a class right now that we are doing gibbs CAM and we need a project for the CNC. it makes sense to me that a spacer between the blower and the stock blower top would be just as good as a new raised blower top
 
slow_v6_stang said:
i see how they make aftermarket raised blower tops. would a simple spacer between the blower and the top do the same job? i have a class right now that we are doing gibbs CAM and we need a project for the CNC. it makes sense to me that a spacer between the blower and the stock blower top would be just as good as a new raised blower top
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Spacer does nothing for performace. The stock top's problem is the throat area is compressed to almost nothing. Adding a spacer doesnt open the throat to allow free flow. Tops that are raised 3/4" open that area. Just a spacer would be a waste of time and effort

Ken
 
slow_v6_stang said:
so the point is to open the throat, not raise the top?
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I dont have a picture of the stock top's throat opening. Here are pictures of the top I use to run on my sc that I built. It was a 1.5" raised top. The first shows the throat opening and the second shows the finished top prior to being chromed
 

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kenewagner said:
I dont have a picture of the stock top's throat opening. Here are pictures of the top I use to run on my sc that I built. It was a 1.5" raised top. The first shows the throat opening and the second shows the finished top prior to being chromed
Click to expand...

You sir, did a wonderful job on that top!
 
It is not true that using a spacer would have no benefit. Using a material such as G10 would prevent heat transfer keeping the charge cooler. The best of both worlds, if there were room, would be a combination of a raised top to enlarge the throat and a G10 spacer to isolate the inlet tube and IC from engine heat.
 
Here's what a spacer does to a supercharger on the intake side: traps the heat in the case and burns up the rear bearings.

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Just think what the heat would do on the outlet side.
 
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Dude, I find it hard to believe that the damage was caused solely by the addition of a spacer. It would take hundreds of degrees of heat to cause a burn like that. The inlet side would have cool air flowing in so it would be practically impossible for that much heat to be "trapped" in the case.

Looks like a lightning blower. They have been using spacers on those things for years with huge performance gains. This would be the first time somone claimed blower failure as a result of their use. I'd be curious as to how this came about.
 
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