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SVTPerformance's Chain of Restaurants
The Blower Bistro
best free blower mod...
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<blockquote data-quote="bigbadwolff66" data-source="post: 3986244" data-attributes="member: 33836"><p>I've got a few comments on this. I do not have any HP numbers to back these up, but I will share my experience.</p><p>When you take the blower off and you get a good look at the lower intake, gently run your finger through the lower intake where it meets the cylinder head. Mine was sharp like a razor. The machining that Ford must have used to flatten the surface of the manifold gets the mating edge like a razor. Now picture the airflow going past that point. It is going to "catch" on the edge and start to create additional turbulance in the port. I wouldn't doubt that breaking the edge and smoothing it over could be worth a few free CFM.</p><p>Here's another one for you: The plenum that the throttle body is connected to sits right over the pass side valve cover and get shit with exhaust and engine heat that is rising in the engine compartment with the hood closed. I got some of the shiney thermotec heat wrap, that has an auminized coating on one side and the adhesive backing on the other and wrapped the plenum. This way radiant heat tends to flow around the outside of the tape and not superheat the plenum. And after the engine has sat for a while and heat soaked, the plenum also tends to cool off faster once the engine is re-satred and outside airflow goes through the throttle body because the plenum is losing it's heat to the incoming air flow faster then it can absorb the radiant heat from the engine. $15 trick, works good. I can go for a nice highway ride and after 30-40 minutes, I pull over and can put my hand right on top of the cool plenum. Then compare that to the top of the supercharger, which I can barely touch without pulling my hand away...Don</p></blockquote><p></p>
[QUOTE="bigbadwolff66, post: 3986244, member: 33836"] I've got a few comments on this. I do not have any HP numbers to back these up, but I will share my experience. When you take the blower off and you get a good look at the lower intake, gently run your finger through the lower intake where it meets the cylinder head. Mine was sharp like a razor. The machining that Ford must have used to flatten the surface of the manifold gets the mating edge like a razor. Now picture the airflow going past that point. It is going to "catch" on the edge and start to create additional turbulance in the port. I wouldn't doubt that breaking the edge and smoothing it over could be worth a few free CFM. Here's another one for you: The plenum that the throttle body is connected to sits right over the pass side valve cover and get shit with exhaust and engine heat that is rising in the engine compartment with the hood closed. I got some of the shiney thermotec heat wrap, that has an auminized coating on one side and the adhesive backing on the other and wrapped the plenum. This way radiant heat tends to flow around the outside of the tape and not superheat the plenum. And after the engine has sat for a while and heat soaked, the plenum also tends to cool off faster once the engine is re-satred and outside airflow goes through the throttle body because the plenum is losing it's heat to the incoming air flow faster then it can absorb the radiant heat from the engine. $15 trick, works good. I can go for a nice highway ride and after 30-40 minutes, I pull over and can put my hand right on top of the cool plenum. Then compare that to the top of the supercharger, which I can barely touch without pulling my hand away...Don [/QUOTE]
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The Blower Bistro
best free blower mod...
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