The Silver Freak Project (Page 36/59)
Steven_Kreg JUN 04, 08:25 PM

Thanks for taking the time to document your build, its fun to watch.

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Blacktree JUN 05, 05:06 PM
I decided that while I have the engine out, it would be a good time to tackle a couple other jobs. For example, upgrading to a 2.5" exhaust.



The Trueleo Y-pipe is 2.5" diameter at the bottom. They attach a reducer to the bottom, so you can use a stock-size exhaust. I'm going to cut that off and run 2.5" pipes out to the muffler. I also noticed that my Ocelot muffler has 2.25" flanges, with reducers welded on to fit the stock-size (2" diameter) pipe. So I'll cut off the reducer for the inlet pipe, and replace it with a 2.5" to 2.25" reducer to fit the new 2.5" pipe.

I'm still waiting on a few more parts, though. When those parts come in, the fun starts!

[This message has been edited by Blacktree (edited 09-01-2017).]

Blacktree JUN 09, 04:46 PM
More goodies arrived today: an oil cooler with an 8" fan.



If all goes according to plan, I'll be dropping the cradle on Friday.

[This message has been edited by Blacktree (edited 09-01-2017).]

Blacktree JUN 09, 08:10 PM
Today, I built a fan shroud for the oil cooler. There are pre-made fan mounting kits available, but they usually mount the fan right on top of the oil cooler. I don't like that arrangement, because only the area directly under the fan blades gets airflow. My homemade shroud spaces the fan about an inch away from the oil cooler, so air can be pulled through all the cooling fins. Here are a couple photos.





I also bought a thermostatic fan switch for the oil cooler fan (on at 180°F, off at 170°F), but it hasn't arrived yet. I hope it gets here by Friday!

[This message has been edited by Blacktree (edited 09-01-2017).]

RCR JUN 09, 09:03 PM
Your fan box looks great (do you have a brake?). I was planning on mounting mine and venting it through the side vents, so I'd like to hear your reasoning. Where are you mounting the oil cooler? Why is it you need the fan?

Bob
doublec4 JUN 09, 09:29 PM

quote
Originally posted by RCR:

Your fan box looks great (do you have a brake?). I was planning on mounting mine and venting it through the side vents, so I'd like to hear your reasoning. Where are you mounting the oil cooler? Why is it you need the fan?

Bob



Everything so far looks great, I have the same questions as RCR though. If the car is seeing regular use and sees maybe short spirited driving, whats the purpose of the oil cooler?
Blacktree JUN 10, 12:52 AM
The oil cooler is probably overkill. But then again, most of the other mods aren't really necessary either. I'm sure the same could be said for many of the mods on our cars.

Anyway, the shroud is made of 1/32" aluminum. It's pretty easy to bend. I actually did the bending in a vice, using the vice jaws and a couple blocks of wood as a makeshift bending brake. Then I used a flat-face hammer to square off the edges. It may seem complicated, but was actually pretty simple and straightforward.

The plan is to tuck the oil cooler into the open space behind the passenger side quarter-panel. I will not be adding an air scoop. So there won't be much airflow through the area. That's where the fan comes in. It will draw fresh air into the oil cooler, from underneath the car. And thanks to the mods I made to the rear clip and sail panels, there is an escape path for the hot air.

I'm also thinking of using a temporary indicator lamp, so I can monitor the operation of the oil cooler fan. If it doesn't activate very often, then I may nix the fan, or the oil cooler entirely.
doublec4 JUN 10, 01:06 AM
Sounds good, where did you buy it from?
Blacktree JUN 10, 01:34 AM
I bought the oil cooler at a local auto parts store. It's a standard 7.5 x 12" unit, with the sandwich adapter, hose, mounting hardware, etc (CarQuest part # 77451 HTR). I bought the fan separately from Jeg's. It's on sale for $36.99 ( LINK ). And I bought the fan switch on eBay for about $10 shipped.

On a side note, I really hope this new clutch works out. I'm itching to get the Freak back on the track.
fierofury JUN 10, 06:46 PM
Cool...