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Per suggestion... I retested the hood vent performance w/ a slightly modified set-up to try to eliminate the influence of ambient air passing over the hood on the indicators. Rather than taping the indicators upright on the fins as in the first tests, I taped them horizontally low on the fins and ensured that each hung into the engine bay. I chose not to hang them completely in the engine bay d/t the potential that they could get caught on the underside of the vents and skew results. This was the best set-up that I could conceive ensuring a) only airflow exiting the vents could pull the indicators up, and b) minimizing the potential of them getting hung under the fins.
Set-up and a couple of characteristic test runs are below: - Note: I reset the indicators (to hang down) before each run.
Well, I guess third time is the charm. While convinced from Testing 1.0 that the vents were in fact extracting air from the bay, per suggestion I undertook Testing 2.0 to confirm air rushing over the hood wasn't the source of indicator movement. At the time I didn't include additional indicators on the hood - NOT over vents - thinking it extra work for no return.
Later I reconsidered thinking they could provide useful add'l info in comparison w/ the indicators fixed to vents. So, Testing 3.0.
Thanks Jesse ;-) ...good suggestion. Got the testing done over lunch...and enjoyed some of this beautiful day. I believe the most definitive testing yet.
Excellent, I have to admit that worked even better than I was expecting! Can clearly see the vent indicators standing up while the rest of the hood indicators staying low and tight to the body. I'd say this is some good evidence showing nice airflow through those vents forcing them to stand up
Got my new Mishi catch can fitted w/ full 10AN hoses from filler neck to intake,
Then, enjoyed a bit of thrashing about.
Edit:
- Hood no longer pops d/t bay pressure since installing the vents.
- Dip stick no longer pops as well d/t crank case pressure after going to 10AN CC hoses.
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Moved a little mundane thing from my "To Do" to my "To Done" list ...during this necessary CV-19 slower life-pace period . I'd had a small, but persistent leak from the oil pan at both the plug and the turbo drain connections. So, I'd been doing the dance: catching the oil in a pan whenever parked in the garage, and pouring it back into the filler neck every 2-3 days. Well, no mas!
Finally, got around to sourcing replacement washers, pulling the pan, swapping out the washers, nylon out...going with synthetic fiber..., and reinstalling everything. After a couple of spirited drives and ~48 hrs..., not a drop from either: plug or turbo drain.
Note to self...don't over torque the plug when changing oil.
No more cleaning oil off the undercarriage...or garage floor. Trying to make the best of this CV-19 time... on some little things....
Pan removed
. 10AN fitting and nylon washers removed
. Deformed inside (L) & outside (R) nylon washers, and one of the new synthetic fiber washers
. Pan refitted, and holding w/ no leaks after ~48 hrs ...and a couple of drive cycles.
. Cross-brace reinstalled.
Completed Installation of Windshield Fluid and Coolant Expan. Reservoirs
After burping... and a few drive cycles allowing the coolant level to normalize..., fit and function are all good.
- neither leak
- the inline pump blasts the windshield w/ fluid
- atm I've eliminated the active fluid level sensor...so coolant level will have to be manually checked unless / until I can source a suitable replacement.
Nice to be rid of the faded plastic reservoirs, ...all items h/b vacated from behind the rad & fans...optimizing the hood vents, and as a bonus... get a small compartment under the new reservoirs.
(Edit) For any interested...total project cost was ~ $225:
- $75: 2x reservoirs from Ebay ..... 1L Chrome Aluminum Radiator Coolant Overflow Bottle Recovery Tank Reservoir Set
- $100: welding bungs .....(Needed to move the overflow port to top / right shoulder of coolant expansion. Had other bungs welded at the same time.)
- $40: assoc. fittings and hoses
- $10: 1x inline washer fluid pump
My 8 is Spartan in comparison..., but faster and smoother. The C300 has a 7 gear transmission and feels kinda "notchy" in sport+ mode IMO, but is a machine....choc full of bells & whistles.
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Mercedes>BMW. Just my opinion. Good choice 👍
Glad to see the 8 looking pretty. I love when people spend money under the hood rather than on Gt style wings and cambered out rimz to look cool.
Mercedes>BMW. Just my opinion. Good choice 👍
Glad to see the 8 looking pretty. I love when people spend money under the hood rather than on Gt style wings and cambered out rimz to look cool.
Thanks, Jake! Yes, IMV it makes sense...and h/b my plan to work "from inside to out".
My 8 is Spartan in comparison..., but faster and smoother. The C300 has a 7 gear transmission and feels kinda "notchy" in sport+ mode IMO, but is a machine....choc full of bells & whistles.
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Damn, is this a second garage or something?? Where are all you piles of useless junk lying around taking up space???
Since mine is a DD... the amenities are still important.
After installing the new reservoirs...I'm pleased w/ the performance of my new windshield fluid pump. A quick vid from my evening sanity Corona-cruise.
Tossing up an engine bay vid of her humming and the turbo "singing". Beautiful music. Kudos to Ricky (Xero Ryuu) who first posted a vid, which gave me the idea.
04-02-2020, 07:51 PM
. I'd had a small, but persistent leak from the oil pan at both the plug and the turbo drain connections. 
So, I'd been doing the dance: catching the oil in a pan whenever parked in the garage, and pouring it back into the filler neck every 2-3 days. Well, no mas! 
However, looking at this pic did prompt me to start looking at some RX8 and MB posters. 
