Hot new blower manifolds

[Racer47]

Did you slog through ALL of the 162 postings, strewn over the 6 pages on that CTS-V forum ?...................................

No. And i'm not going to read all of your fake science either.

 

[jdlatil]

I have found company that sells the teflon sheet 1/4” at resonable price, there scraps and end cuts off full sheets.
I’ll order extrta in case my machining rusty.

 

[Pentalab]

No. And i'm not going to read all of your fake science either.

Then don't cherry pick the 1st page results on a CTS-V forum. Unfortunately I had to read through all 162 posts. Post #129 on page 5 is the real results.

What PD blower are you using right now ?

 

[Pentalab]

I have found company that sells the teflon sheet 1/4” at reasonable price, there scraps and end cuts off full sheets.
I’ll order extra in case my machining is rusty.

Good. I found a local place that sells scrap sheeting and end cuts off of full sheets. I lucked out that day and managed to get exactly what was needed for a HV power supply I was repairing. The thinner stuff in that case was easily bendable. It's hit and miss at my local plastic place re: scrap pieces. Apparently one thing to be careful when machining teflon is not to breathe any fine particles..bad news health wise.

 

[Racer47]

I have found company that sells the teflon sheet 1/4” at resonable price, there scraps and end cuts off full sheets.
I’ll order extrta in case my machining rusty.

Teflon creeps. You will lose bolt clamp load and burn up pistons running lean when your intake has air leaks.

 

[Racer47]

Then don't cherry pick the 1st page results on a CTS-V forum. Unfortunately I had to read through all 162 posts. Post #129 on page 5 is the real results.

What PD blower are you using right now ?

You're referring to the guy selling stuff and trying to make a living. I'm quoting the guy who has nothing to gain either way and seems to be honestly reporting his test results.

"Unless you are idling for extended (20+ minutes) periods, my personal experience and data logging reveals that this myth is busted: the spacers DO lower supercharger temperatures at the base (only - lid temps are unchanged), but do NOT lower IAT2 in any detectable way while driving, highway cruising or WOT conditions in my testing."

I'm running a KB 2.6H with anywhere from 500 to 650 whp depending on hard I want to spin it.

I'm not debating with you because you will never admit that you don't know shit. You just regurgitate other peoples knowledge but have little of your own. Same with the tire thing. Same with everything that you insist on arguing about despite the overwhelming evidence against your position.

At the racetrack the name for guys like you is "back-marker" or "moving chicane". They never learn because they think they know it all and refuse to listen to the guys with real first hand, hard earned experience.

Go back to taking pictures and quit pretending you are an automotive engr.

 

[Pentalab]

Teflon creeps. You will lose bolt clamp load and burn up pistons running lean when your intake has air leaks.

I forget how much TQ used on the bolts, that bolt the blower casing to the manifold ? If the teflon gasket was made thick enough + a slight overhang on all 4 x sides, any creep issue might be alleviated. The teflon gasket would be sandwiched between the al blower + al manifold. The 2 x thick al surfaces should help distribute the load. If it did leak, boost would drop. If it lost air, it would run rich.

 

[eighty6gt]

Spacers and insulation will do nothing.

 

[Racer47]

I forget how much TQ used on the bolts, that bolt the blower casing to the manifold ? If the teflon gasket was made thick enough + a slight overhang on all 4 x sides, any creep issue might be alleviated. The teflon gasket would be sandwiched between the al blower + al manifold. The 2 x thick al surfaces should help distribute the load. If it did leak, boost would drop. If it lost air, it would run rich.

This just proves how little you know.

Whats worse than a material that creeps? A thicker amount of that same creeping material, resulting in even faster bolt clamp load loss.

Engines run under vacuum a lot more than boost. Sure a leaky intake and WOT will result in a loss of boost. Normal driving will run a vacuum in the intake, suck air in and burn down your motor.

But hey its your motor. Go for it. Prove me wrong.

 

[NickD87]

Pentalab, just a correction
The ausi and department of boost spacers go between the head and manifold not the blower

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[groundpounder]

Pentalab, just a correction
The ausi and department of boost spacers go between the head and manifold not the blower

That way the intake was isolated from the hot heads. Jason then recommended running a 160* thermostat to again help keep the temps down from the water circulating through the cross over.

 

[Pentalab]

Pentalab, just a correction
The ausi and department of boost spacers go between the head and manifold not the blower

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I stand corrected. That would be of great benefit inserted at that point. Then you still have the issue of the cross over, if crossover is integral inside the al manifold, like Roush. That's probably why a lot of tuners use a 160 F T stat. With the crossover external, and top of manifold heat isolated from lower blower casing...and heads isolated from bottom of manifold, and bottom of manifold isolated from the V.... the end results may well be impressive. But I haven't seen that total combo implemented.
Point here is, until all of that has been tried, it's all varying degrees of speculation. There is still room for improvement.

 

[eighty6gt]

Here's an engine with a stock thermostat and no spacers making some power.

 

[01yellerCobra]

Here's an engine with a stock thermostat and no spacers making some power.

Devil's advocate..... What fuel was it running? I may have missed it. And a quick pull with a cool down is a little different than driving it on the street.

I'm more about the thermostat than the spacer. IMO a spacer won't do much in an enclosed engine bay. There's so much radiant heat it's going to heat everything up eventually.

 

[Pentalab]

Devil's advocate..... What fuel was it running? I may have missed it. And a quick pull with a cool down is a little different than driving it on the street.

I'm more about the thermostat than the spacer. IMO a spacer won't do much in an enclosed engine bay. There's so much radiant heat it's going to heat everything up eventually.

They were using E85. I think the spacers have merit. Direct metal on metal contact will transfer heat faster than air. As long as the car is moving, fan is on, and hot air being flushed out, effects of radiant heat could be minimized.

 

[eighty6gt]

It's an engine. Why worry about IAT's when you're making 1200 hp. Even on piss gas you'd make 700 hp with 6 cylinders.

 

[NickD87]

Becuase the engine pulls timing when the AIT are above 130 (I think)
Which means your car is not making the power it should


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[eighty6gt]

I bet that gen 3 GT500 runs nice and cool...

This is my point, we go in circles trying to bandaid this stuff or become preoccupied with cooling, oil, 3v's... this is a simpler puzzle to solve!