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Old 12-13-2017, 07:02 PM   #101
Sgt.Gator
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Normally you would think that street tires and minimal aero would not cause oiling problems other than needing a catch can or AOS. And for most 20-30 minute track sessions you can check your catch can between sessions to see how full it is before it overflows.

However the track also must be taken into account. At Oregon Raceway park we have a couple of high banked turns, named the Half Pipe. The Porsche guys tell me they can see 2G on the HUD if they take it around the upper part of the banking. In my Spec B with street tires I spun a bearing in my first 20 minute session.

On another day I was instructing a new student driver in his 2004 STI. He was doing great and getting faster every session. The last session of the day he spun a bearing.

All my race cars have dry sumps now, and will in the future as long as class rules allow them. It doesn't matter if it's a Honda B series, a Subaru, a Suzuki Hayabusa sports racer, or an LS, it gets dry sumped.

Modern tires and aero have made it a necessity for all race car engines.
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Old 12-13-2017, 08:46 PM   #102
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I agree. I lost a bearing in 2010 at Nelson Ledges in Ohio. Long banked turn in 4th gear that you could do mostly flat to the floor. After 45 minutes I heard the sound. I had done probably 5-6 track days that year at Mid Ohio without an issue.

After that I started learning about oil starve and what to do to mitigate it. Now the car is autox only so it's "ok". I'd like a dry sump, but haven't seen a kit that I like that's cheaper than me building my own engine And in autox, while I see peaks over 2 and sustained in the 1.5-1.6 range without banking it's not for super long periods of time. I see more oil slosh out of the pan than anything else.
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Old 12-16-2017, 09:24 PM   #103
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Quote:
Originally Posted by Sgt.Gator View Post
From PRI 2017: I had a great talk with the owner of the Can Jam Motorsports STI, Nick Hoo, that just won the Speedring 2017 Time Attack overall fastest time and earned them a $20K check from Motovicity. It was very interesting. First a few shots of his car:
Stewart Hoo and I had a nice long talk about the car and discussed many issues and solutions for some of their issues. It'll be interesting to see where the car goes from here.


Quote:
Originally Posted by Sgt.Gator View Post
And if anybody is thinking about a sequential dog box I talked with every vendor about using one in a 818 and STI. Just be ready to spend $15 to $25K. And another $4K for a Geartronics GCU if you want that <you do!>
Ditch that nonsense and call up Matt @ Guard Transmission and get their sequential Cayman box. There's already a bellhousing adapter on the market for it too.
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Old 12-17-2017, 11:28 AM   #104
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I just heard back from Dave at Rallispec. They are stepping up and taking care of the shortblock issue. He is shipping a new Closed Deck version of their RSB-RS25 Race Block machined for 1/2" head studs. He has one in stock he can ship right away. It will be standard compression and standard stroke. Otherwise I'd have to wait 3-4 weeks to machine a replacement of the original order. He's also supplying new RCM head gaskets and will reimburse my shipping costs.

I'm completely satisfied with this outcome. Especially since I should be able to get some racing in this season.

Kudos to Rallispec for being a good vendor. I've invited Dave to come out and experience the Thill25 with our team (if we can get it together).
It good
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Old 12-17-2017, 02:43 PM   #105
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From PRI 2017: I had a great talk with the owner of the Can Jam Motorsports STI, Nick Hoo
Just to clarify if any confusion , Nick is one of the 3 sons of Stewart that runs Can Jam. So its a family affair !
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Old 01-16-2018, 01:48 PM   #106
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A couple of updates:
STI: Surgeline tried to install the new heads on the rebuilt block. One of the 1/2" studs pulled out of the block before reaching the required TQ setting. The block is on it's way back to Rallispec for repair, and Rallispec will install the heads themselves and ship it back as a long block assembly.

We think the threads were damaged when another vendor worked on the block, not Rallipspec or Surgeline.

Very Frustrating!

The FF 818R is in the process of getting it's new halo cage. It will look like the Lotus 2-Eleven FIA car earlier in the thread.

I also have the original Palatov D4 test mule, "Pearl". This is the first D4 Dennis Palatov built and has been run for years. We extensively upgraded it with all the changes the new D4's have now in production including a sequential paddle shift system controlled by a Geartronics GCU. To pass the SCCA/ICSCC broomstick test we had to cut off the original roll hoop and fabricate a much taller one. Right now the car is at Arcflash, a local shop here in Bend, getting a new motorsports dash with logging. https://www.arcflashllc.com/products/digital-dash

The Palatov will primarily be a track day rental car at ORP and possibly PIR starting when the season opens this Spring.

The entire build process from napkin design until today is documented in Dennis Palatov's blog here: http://www.dpcars.net/ Click the D4 tab.

And here's a video of it doing one fast lap at ORP a few years ago with a pro driver at the wheel. It should be slightly faster now with the new shifter. This is a1:39 lap (CCW) which is about 1.5 secs off the overall fastest lap at ORP set by a Formula Atlantic car.

If you're interested in renting the FF818R or the Palatov D4 for a track day you know where to reach me!
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Old 01-30-2018, 06:17 PM   #107
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Default Damage Alert: How to Avoid Pulling Threads or Killing Head Bolts

I'm wondering if the ARP stud pulled out because of this:

Damage Alert: How to Avoid Pulling Threads or Killing Head Bolts
By JEFF SMITH JANUARY 26, 2018

http://www.enginelabs.com/engine-tec...ng-head-bolts/
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Old 05-12-2018, 01:29 PM   #108
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Good News, the Blue Sake Bomber has risen from the ashes of another rebuild and flys again!

Kudos to Surgeline in Portland for stepping up the plate and making sure the engine would be in and ready to go for both a breakin session at ORP and my first race at PIR.

We put a break in tune (5,500RPM max, wastegate PSI) on it and I headed up to Oregon Raceway Park for Track Club day. I accumulated 3 hours of lapping on the break in tune with just a couple of bugs to iron out. One was we installed an AutoBlip but it caused CELS and limp mode, so I had to unplug it.

Changed the oil and back to Surgeline for race tunes. They got it done Friday, with the race on Saturday! I entered just the one hour Mini-Enduro at Portland International Raceway. The plan was to run on wastegate PSI again for a solid hour of lapping but in race conditions and the regular 6,800 RPM redline.

Practice, qualifying, and most importantly the one hour Enduro went off without a hitch!

I was running waste-gate spring pressure, about 12 psi all day. It was really tempting to go to 20 psi for the race but I forced myself to keep my goal in mind. To break in the engine, watch the temps, listen to the sounds, and finish the race! All accomplished.

I went 100% on the 12 psi and had no problem keeping up with my buddy Zack in his Spec E46. I hung on his bumper for three laps. Then I noticed my gas was going fast and I wasn't going to make it the entire hour on a full tank at that rate. Part of the plan was to see if I could go a full one hour on the 12 psi tune. Well not at PIR in a no chicane race. So I backed off to 80% throttle and concentrated on watching gauges, and not getting taken out by the faster cars.

Coolant never went over 190. The tranny maxed out at 160. Oil pressures were good, even during the mandatory pit stop for 60 seconds it stayed at 25 psi on idle. It's never done that before after a hard run. The oil temp stayed under 200 almost to the very end.

The last 5 mins I kicked it back to 100% WOT to see what kind of lap time I could set at that psi. After the checkered flag I noticed the oil temp had hit 230. I'm thinking the Perrin headers were probably glowing cherry red and heating the oil filter. The headers are plain, Perrin won't warranty them if you wrap or coat them. So I'll get a standoff DEI wrap and see if that protects the oil filter from the heat. Maybe some kind of heat shielding too.

The low on gas light came on just as I entered the pit lane, perfect timing! When that light comes on I only have about 1 or 2 laps before cornering forces cause superlean conditions.

I'll be adding an auxiliary fuel cell just for the one hour enduro problem. The extra 4 gallons should get me all the way thru a race at 20 psi.

On other notes:
The Auto Blip worked great. It's not as smart as a GCU, it has it's limitations, but it sure worked nice. Made for very smooth and consistent shifts in most corners. You still have to manually blip with your foot in some conditions, specifically when you downshift but don't use the brakes. The AB only works when you are applying the brakes. For now I recommend it for track and race cars.

Also in the race were a Stohr and a Radical. OMG that Stohr was fast! He would come out of nowhere, faster than even the corner workers could get out their passing flags to let you know he was coming. I almost took him out in Turn 6. I didn't know he had come up next to me, he's so low and fast he was all of the sudden there as I went to the corner exit. I later heard he was passing everybody on the outside of turn 6. I think he lapped the second fastest car which was ungodly fast too. He really needs a flashing light on top of his roll bar if he's going to keep doing Enduros with the Tin Tops.

I'm glad I installed one on Pearl. A 1,000 lb car has no chance against a 3,500 lb one when they don't see you. It's not so much an issue at HPDE days where most organizations require point bys, but in racing it's different. Whenever I saw him coming I would try to give him a point by just to be sure he understood I knew he was there.

And I got a nice surprise a few minutes ago. I took Second Place in the Mini Enduro! I had no idea, but two other faster cars than me had problems.

The Red Mustang GT4 took 1st place in our MEO class. The car that was in 2nd place, a white Porsche GT3 from Canada who I raced against in the Enduro last year at Spokane, must have had a problem somewhere during the race because he completed 37 laps. Unfortunately for him I completed 39! LOL!

And I ran a pretty decent fastest lap time even on wastegate boost, a 1:20.7. That was the fourth fastest lap time of the 21 cars in the race. Turn up the boost Mr Scott!

Next race is May 19-20 at Pacific Raceways outside Auburn WA. I guess I better be there in the Mini Enduro on Saturday May 19, I'm in second spot for the championship! Hope to see some of you PAC NW guys there.

Hmm, I may have to run in the ST class too, give those guys some competition!

The Red Mustang GT4. He was fast!
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Old 05-16-2018, 04:00 AM   #109
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Getting ready to race at Pacific Raceways this weekend!

I installed a Vacuum gauge to see how much vacuum the DS pump is pulling. These pics are only under no load with no turbo boost blow by, so they aren't representative of what I'll see at the track, but I'm still very pleased with these numbers.

Cold Idle right after startup, 13.5":



Cold, 1,500 RPM, still 13"



Warm, 3,500RPM, 13"- Excellent!



Warm, 500-700 RPM Idle. The Vacuum drops to 1-2":



I also installed an Aux Fuel Cell to get me thru a one hour enduro with no extra gas added:



And an engine shot as it stands today:



I'll be racing in the Enduro race late Saturday afternoon and the ST race on Sunday. Come on out!
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Old 05-18-2018, 11:57 AM   #110
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So are you going to datalog your vacuum on the crankcase?
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Old 05-18-2018, 08:54 PM   #111
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Have fun and be safe out there!
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Old 05-19-2018, 01:18 AM   #112
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So are you going to datalog your vacuum on the crankcase?
I have a second video camera that should catch the gauge while on track. I may not get it the first try but surely by Sunday I'll have enough video to know if it's doing its job.
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Old 05-19-2018, 01:21 AM   #113
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Have fun and be safe out there!
Thanks.
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Old 05-22-2018, 01:45 PM   #114
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Saw the results on facebook

good work !
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Old 05-23-2018, 04:26 AM   #115
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The Saturday racing started badly, got worse, then finished great!
The great: We took First Place overall and in class in the Enduro! Now I''m in first place for the Enduro ME0 class Championship.

The bad. It was a rough morning. The vacuum gauge showed up to 16" of vacuum at first start up <good>. But as soon as I hit the track I saw the vacuum drop off to 0 and potentially positive. Because it's a closed system positive pressure is very bad because it can blow out the seals. I ended the session to come in and figure out what to do about it. As I was coming into the pits I heard a pop but the car kept running and I got so busy worrying about the vacuum/positive that I forgot about it.

I took the vac gauge line off the valve cover and ran hose from the VC to a homemade catch can with a 1/8" hole drilled in the top to relive the positive pressure.
I went back out for Qualifying and instantly knew the pop I heard earlier must have been a intake hose coming off because I had no boost. Because it's a SD tune I could keep running with no boost so I did a few laps to get a qualifying time and went back in. Sure enough the throttle hose had popped loose at the bottom. But the catch can worked fine, it was totally dry. However that was under no boost.

Went out again for the ST race, made it two laps and had oil spraying all over the windshield. Obviously the catch can was a fail. Back to the paddock.

The only solution was to run a hose from the engine in the front to the DS tank in the trunk. A quick trip to O'Reillys netted 15' of hose and the adapters. We hooked that up and hoped it would work for the Enduro race.

Jeff Remfert and I shared the ride in the Enduro. He's an exceptionally fast driver having won many Championships in our Conference racing and has driven the ThunderHill 25 several times, placing 3rd overall one year , if you can believe this, in a Caterham! He's also very experienced at Pacific Raceways, I was really looking forward to capturing his data and video on my Video Vbox for comparison to mine.

Because I qualified with no boost, I was mid pack in the grid. The first few laps were fun working thru the faster qualifying cars now that I have boost! I quickly found myself in second place behind a Spec E46 BMW that was really fast. He must have been running a non-Spec E46 tune for the Enduro (which is legal if he is in the ME0 class) because even on the long front straight he was pulling away from me. My half of the enduro came to an end with us in a solid second place in class and overall.

Jeff swapped in and started cranking consistent fast laps. As in just a couple of tenths separated his laps, over and over. I was amazed considering he had never driven the car before, not even one lap in practice. He is a machine, he had numerous laps within hundredths of a second, a fast lap consistency I can't come close to.

About 3/4 of the way thru the race we no longer saw the BMW going by. A grid worker reported that he had pulled off the track and was in the paddock. That put us in first, sweet.

Jeff finished out the race, but not before a fool in a Pro3 BMW almost ran him into the wall on the front straight. We all saw it happen, there wasn't a gnat's hair between the passenger door handle of the Blue Sake Bomber and the wall. That one was a close call.

Jeff took the Checkered Flag in overall first place, a very rare occurrence for the Blue Sake Bomber!

As I type this I'm looking at The Video Vbox data and video. There's places where he is faster than me, and where I'm faster than him. But unlike me, he has consistently fast laps. Because he's so consistently fast he would have kicked my booty if we were racing each other.

In the end his best lap was a 1:34.06 and mine was a 1:33.81. Now looking at where he's faster I could shave off another 1/2 second, maybe one second.....the Vbox is amazing for finding that kind of data. I know exactly where I need to be faster and why, and he knows where he can be faster. So he learned a little, and I learned a lot! Now I just have to get the consistently fast part down....
A big thanks to the Retro Racing Team for a great weekend!
I'll try to post up the videos by late next week.
But in the meantime we have this!

..
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Old 05-23-2018, 02:53 PM   #116
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Congratulations and thanks for sharing. Look forward to seeing the video.
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Old 05-28-2018, 04:46 PM   #117
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Congratulations and thanks for sharing. Look forward to seeing the video.
Thanks!
My Fast Lap at Pacific Raceways in the Enduro


And a few laps the next day during the ST race. My fastest lap of the weekend is in there, an official 1:32.871 on the timing system. Sorry this one has no sound.

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Old 05-28-2018, 05:03 PM   #118
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It's got sound! nice driving and sweet car.
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Old 05-29-2018, 02:35 AM   #119
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It's got sound! nice driving and sweet car.
Thanks.
If you look close the first video has the wrong track outline too, that's PIR, not Pacific. I think I have the kinks worked of the video/data system for the race this weekend at PIR.
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Old 06-01-2018, 03:21 AM   #120
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Heading to Portland International in the morning. The weekend has shaped up for some good racing. There's six cars in the ME0 class of the Enduro, including Retro Racing's Factory Five 818R. And seven of us in the ST class races on Saturday and Sunday.
If you are coming out I'll have the Subaru of Bend Trailer next to the guys at Retro Racing. At least that's the plan!
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Old 06-02-2018, 11:48 AM   #121
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Default Oil in the Coolant

The Short Version: Oil in the Coolant - No racing this weekend.

The Long Version: On the way to PIR I stopped by ORP to bed in my brake pads. The first session at PIR is Qualifying, not a good time to be bedding in pads, the other driver's don't appreciate 100 to 10 mph stops for no reason on the straights!

When that was finished I parked the car and heard gurgling in the coolant overflow tank. A lot of gurgling. And it kept gurgling. After 10 minutes the gurgling slowed down and I pulled the yellow cap off to see the chocolate brown color and floaters of oil in the coolant. Crap, head gasket seal failure!


I went on to Portland and dropped the car off at Surgeline. We suspect that the block's pulled threads repair and heads installation done at Rallispec has failed. Of course that's only speculation until we dig into the engine further.

Looking back I might have suspected something was going wrong when I had the positive psi in the crankcase under sealed dry sump vacuum. At the time I thought it was the 2 stage DS not keeping up with the loose built forged block. Now I suspect the repaired threads were starting to fail after a few heat cycles and the combustion gas was starting to slip out.

Check List Modification: After every full day of track practice or racing use my head gasket CO2 sniffer to catch issues early, rather than just before a race. It will now be part of my standard post race inspection.
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Old 06-02-2018, 04:58 PM   #122
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In case anybody else just said, "use your WHAT?" after reading that...

https://www.summitracing.com/parts/lil-75500
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Old 06-03-2018, 03:44 PM   #123
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In case anybody else just said, "use your WHAT?" after reading that...

https://www.summitracing.com/parts/lil-75500
Thanks. I use the UView 56000. Same idea.

https://www.amazon.com/UVIEW-560000-.../dp/B000NPDL76

Last edited by Sgt.Gator; 06-03-2018 at 08:11 PM.
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Old 06-04-2018, 07:05 PM   #124
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So elaborate on the 'thread repair'...

If they used heli-coil, it should be stronger than the factory threads.
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Old 06-18-2018, 04:12 PM   #125
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So elaborate on the 'thread repair'...

If they used heli-coil, it should be stronger than the factory threads.
I don't know what they used. And they aren't replying to emails about the situation.


The Front Hood Ducting is almost finished on the 818R. There will be rubber seal around the duct to hood interface. Josh at Arcflash has done some great work on the 818. When he's done with his part we'll swap the 818 for my STI. I'll take the 818 home to install the dry sump system and the fuel -AN lines, meanwhile he'll pull the STI engine out and we'll figure out why it's got oil in the coolant.

....
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