Well, I made a lower intake spacer today. I only used 1/8th inch G11. I have some 1/4th inch also and can get 1/2 inch if it is needed. I should be able to tell if the inake air is cooler with the spacer since I moniter the intake air temps.

 

I shuld be able to pull the blower and reinstall in a couple of hours. Maybe have a report about 7pm central time if I don't get too busy here at work.

 

Make it snappy Leonard. There is nothing going on in TN today.

 

Screw work, this is more important

 

Can you measure the blower case temperture too? With and without the spacer?

 

Can in to rest for a second. I started at 2:15 and the blower is almost back on. Don't have any tools to measure the blower temp.

 

I believe he is measuring the intake air from the lower intake manifold. If this air is cooler, with the spacer, then the blower case will have to be cooler, also. Actually measuring the blower temp. doesn't seem necessary.

 

Send me one of eash

 

My belief is that the blower will be thermally isolated from any conductive cooling path and will go into thermal runaway.

You will still have convection cooling by the surface area of the blower, but it is small relative to the heat generation.

The secondary air temp after the intercooler could be cooler because the intercooler doesn' t have the blower heat load on it now. So cooler air, with a hot blower.

Cool, innovative work going on here. I'm going home to put on an upper spacer later.

 

I have to say im kinda concerned just like hihoag is about what could happen. Were it me i would head real quick to a radioshack and buy one of those infrared temp sensors, and just keep an eye on it. I commend you for making the part and for testing it out, if it works itll be a great contribution, but i think you should play it safe too, it cant hurt. JMHO.

Also i dont think the spinning blower is gonna make the heat, spinning an isolated blower without an engine generates heat no doubt, but i dont think its much. Most of the heat it think is gonna be made from the compression, and without a place to dissapate it, i wonder how hot that blower will get. Best of luck.

 

Hate to be a negative nelly, but didn't Sal just post a couple days ago how if the blower didn't transfer heat to the lower intake , it would overheat big time?


I'm not ******* on ya or anything, maybe you'll stumble on to something.

 

he said he thought so, but I dont think its been tested yet for sure. Hes actually discussed it in both of the main threads about the JDM spacer, the one that JDM made, and the test done by Gator. I guess we will see soon enough. I was actually thinking that maybe since the blower is pretty small, maybe air will pass over it at high speed and blow most of the heat away effectively enough. Hope the testing is going well.

 

that would be cool if this would work. I was at Jim's when they were testing the spacer on Gator's truck and I felt the intake first hand, i was floored. More so that not only was the heat difference amazing, but he picked up more hp and torque with that than with most bolt ons on the market!!!

 

I have about a two hour commute to and from work everyday. It was difficult to see how the spacer affected temps this afternoon because the temperature is about 10 degrees hotter than what it has been lately.
Anyway, I have an autometer temp probe located in the lower intake above the intercooler. I believe taking measurements with this will tell me if the blower gets too hot. I'm sure the heat from the blower is transfered to the air.
Here is what I did. I disconnected the boost bypass vacuum hose. This makes the blower run without a bypass so the blower really heats up. Temperature was around 280 degrees just cruising at 40 mph. Intake after the intercooler was around 135-140.
I then reconnected the boost bypass vacuum hose and the temps dropped to right at 190-200 degrees. It will go to 300 pretty easy with the 22 psi I'm runnning. The intake temps after the intercooler were cooler than I expected. They were only about 125-130. The temp going into the engine was 90-95. The temps I usually get after the intercooler are 40 degrees above the intake temp.
I'll observe more tomorrow.
HIHOAG said, "The secondary air temp after the intercooler could be cooler because the intercooler doesn' t have the blower heat load on it now. So cooler air, with a hot blower." I'm thinking that is what happened.
You guys have to remember that my measuring tools aren't scientific and that your results could be different.

I also stuck on a spacer between the upper plenum and blower. These were only 1/8th inch thick so thicker may yield different results. The upper plenum did get hot after a while, but it did take some time.

 

Make me one...