NACA 66 Special A/BGS

[SPARKY]

here is to roll'em fast   

[robfrey]

New turbos are here and mounted on engine dyno cart.
A very big THANK YOU to Tim Colton of Garrett and Bill "Chopper" of Limit Engineering.
I've never owned new turbos in my life. I've always pieced together junk.
These GTX5533 genII  will bring our game to a new level!
A lot of my competitors run the other brand which are also very good but I really want a turbo that has a compressor map.


Rob Freyvogel
#496
AA/BFS

[robfrey]

Compressor housings are the same external dimensions but turbine housings are huge.
I am concerned about fitting the turbine housings in the chassis.


Rob Freyvogel
#496
AA/BFS

[robfrey]

The three areas we are working on for 2019-
1) fixing turbo back pressure issue (70+ psi at 31 psi of boost)

2)Drysumping rear end with new billet oil manifolded rear cover along with custom made 1.416 ratio QC gears made from maraging steel.

3) Better oil control
A) oil tank modification
B) crank scraper
C) Oberg between pump and tank
D) block off valley and pull oil from it instead of letting it drip onto spinning crank and rods.


Rob Freyvogel
#496
AA/BFS

[desotoman]

Looking good Rob. Best of luck. 

Tom G.

[WOODY@DDLLC]

Rob, plans sound good! Those should dry your hair just fine! 
See ya in August!

[robfrey]

We also came to the conclusion that the salt is not the place for power plant development.


Rob Freyvogel
#496
AA/BFS

[robfrey]

Oil tank mods.


Rob Freyvogel
#496
AA/BFS

[Dynoroom]

A true "Swirl Pot" nice!

[robfrey]

I would've liked to have flattened out the inlet a little bit more to fan spray against the side of the swirl pot but time is running short.


Rob Freyvogel
#496
AA/BFS

[robfrey]

We also baffled the vent much better. At least we think we did. Lol

So many times we thought we were improving things but we were doing just the opposite.


Rob Freyvogel
#496
AA/BFS

[Seldom Seen Slim]

Rob, that motor looks ready to make one heck of a big noise. WoW!

[robfrey]

As long as that noise is not the sound of rod exiting block, that will be ok!
Thanks!


Rob Freyvogel
#496
AA/BFS

[Rex Schimmer]

Rob,
If you are looking to filter the scavenged oil before it returns to your oil tank, I would not use an Oberg filter. This is exactly the best place to put a good filter but the Oberg screen filter is not the one to use. I would highly recommend the Pall 7500 spin on filter assembly with a Pall 6 micron filter. You can actually get most of the parts on E Bay and when you are done you will have a return filtration system that is multiple times more efficient than the Oberg and really protects your engine. Pall is the world leader in filtration and their filtration media is the most efficient, far better than the Oberg "chicken wire" elements. Talk to Buddy Walker, the flat head Cad man, about his system, he uses the Pall 7500 spin on and is very happy with it. Filtration systems are like crash helmets, if you have a $5 head then buy a cheap helmet, same for your motor. You have put literally thousands of $ into it why protect it with a filtration system that is based upon 1940 technology!

Rex

[robfrey]

Thanks for the info on that Rex!
The screen is to just catch large debris and sort of help separate the air and oil.  I heard from a few sources that this helps.
Remember, I'm pumping a 4:1 air oil mix.
Our tank does not come apart for cleaning if (when) we have a blow up so hopefully this will keep the chunks out of the tank.
Also, I can not fit anything bigger than the oberg screen type filter. I'm not even sure if it is going to fit.
We are going to beat the ever lover ship out of this thing on the dyno and it will fit there.
Of course I'm still running Wix 51061R to filter engine oil.
The filter will help prevent damage to the pressure section of the pump as if that would actually matter when it blows up. Might save me 1% of total rebuild cost. lol