WOW!!!

Hard to believe it's been approx 2 years since me and old Red have been on track together.

Sorted the boost issue with a lower wg spring and headed to VIR F with chin. I ended up having catch can issues so I left early This was because I swapped to a modded UIM that didn't have the oil fill neck vent port on it so that line went directly to the catch can instead and that was the problem. This is actually what most people do when adding a catch can but it doesn't work worth a **** so don't do it Under boost it was just filling the can, overflowing and going everywhere

Never had catch can issues prior to this when running my oil 1/2 way up on the dip stick and maintaining the stock vent with check valve. I think I've sorted it now with a baffled oil fill neck top and running the line out of there and blocking off the side pipe on the fill neck. If that doesn't work I'll simply cap both side pipes and the return pipe on the catch can.

Bottomline: you will run into major oil spill issues if you block the UIM oil gas port off and run a line to a catch can instead. Simpler/better option without going to all sorts of trouble is simply leave the oem line with check value in place and run the other line (the port pointing down) to a catch can and the return line or other port in your catch can to the intake or simply block it off as well if the can has a breather on it.

Only ran 4 session and only one was a complete session that I was able to get away with because my oil was so low it didn't fill the can until the end of the session LOL. I have one vid and will post it because I'm getting out run by my friend Ramon in his 996 GT3 down the straights and that's just a shame. Warning to Ramon; I'll either have better tires or higher boost OR BOTH and if it's both you'll be seeing my *** all day, for a short time

Stay tuned for video

PS APR Wing is BADASS I was seeing 140 indicated (probably about 130 gps) the whole way up the esses and I wasn't trying very hard

 

Being sidelined, need a video fix. It's been way too long.

On the OCC, if what I'm catching is correct (at least part of it), it sounds interesting. Sounds like one of your thoughts is to run the OCC to the UIM through a check valve.

Normal operation is there's two pathways for crankcase gas (sucked from the oil fill neck). One is to the UIM via the PCV check valve. The other is to the primary turbo. Normal consensus is to cap the hose to the UIM and put the OCC on the hose between the oil fill neck and the primary turbo. Problem there (which sounds like is what you are experiencing) is the primary turbo pulls a lot of vacuum and could pull too much from the oil fill neck and overflow the OCC (which is the crux of the problem in the stock configuration, which dumps oil into the primary turbo that then gets into the IC).

It sounds like what you are saying is to not go the primary turbo route, but instead scavenge crankcase gases to the UIM via the PCV. Don't think anyone did this because under boost, the PCV is closed and can't scavenge gases (if the primary turbo hose is capped). However, how often is that? For a street car, maybe not much, but for a track car?? However for a track car, when you let your foot off the gas, it goes to vacuum.

 

Hi Tom,
Vid is boring but will post asap.

On the OCC I'm saying leave the stock plumbing to the UIM alone OR if you remove it you will have to have a baffled top, neck, or do something else creative to keep the can from overfilling.

 

Sounds real boring if you don't have a pulse...

Post it up - looking forward to seeing it

 

 

very nice. what ur turbo, wheel and tire setup?

 

Looking good dude! Looks like most everyone was there (except maybe Pete?). Wish I could have made it, but I was only able to sneak away for Road Atlanta for the weekend.

 

End of vid shows moisture on your drivers side windshield Fritz. Was that oil spray or moisture from some other place?

 

Thanks!

I generally run hankook tires because they are relatively inexpensive, good grip, durable, balance out well and don't leak.

Wheels are SSR comps 17 x 9.5 with a 42 offset. Tires are 275 40s. Yes I know I'd have much more grip with a wider wheel or go faster BUT I'm a cheap bastard and I do this stuff for fun and my car is plenty fun as is

We've been missing you How'd it go at road atlanta. What sort of lap times is the Mustang running?

Yep Pat and Ramon were there and we had fun catching up etc... Dave McLaughlin was also there in his new Mustang

Yep that's oil escaping out of the top of the catch can. Once it's hitting the windshield it's already all over the engine bay, my front and rear tires etc... LOL. You'll notice as early as the 2nd or 3rd lap the left front tire is sliding a little under braking coming into T3.

 

Looks like you and the Porsche were scootin' - did you catch the lap times from this session by a chance?


Great video - thank you for sharing

 

Yep Ramon is FAST in that GT3. He's been running some low 2.04s.

The best session I had was 3 low 2.06s in a row when the oil was low/not overflowing. But it was also so low my oil light was coming on around hard corners.

Once I replace or sort out this turbo I think I'll be able to run a 2.00 flat or even a 1.59. Before the wing and the trans the car ran a 2.02 in July heat and even then my turbo wasn't the best (t04r) and the boost was low/12psi.

This current turbo is too big/laggy and I'm only boosting 9psi. Probably 5psi in 2nd gear, 8 in 3rd and 9psi in 4th and 5th. I put in a crazy low spring to keep the boost down. Probably a 5 psi spring LOL.

After replacing the wastegate spring to a stiffer one last night I see the trans is leaking. PFS swapped in a lower 5th and it's not sealed up well. Also turbo is literally falling apart. The front side bolts that hold the turbo inside the housing have all backed out.... I have to laugh to keep from crying. Looks like I'll either be driving the P car or my back up track FD this weekend

 

Thanks for sharing Fritz! Completely overlooked this event otherwise I would have tried to come out there...M3 still not quite ready tho and haven't decided what to do with the FD still lol.


From what I can recall it seems the wing has added a decent amount of grip in the rear end as I don't see you having to fight it like before, but it does sound down on power on the straights with this turbo setup? Probably could afford a few more pounds a boost to get you back up to 350 rwhp?


What event are you going to next? I might just talk myself into bringing the FD up lol, still working on buying an RSV (Rotary Support Vehicle) too

~Ant

 

Was good seeing everyone trackside. Wish you could have made it Brent. Clicked out a 2:06.3 chasing an IMSA Cayman, was good fun to chase a pro driver and get a point by.

Pic from last year when Fritz brought the GT3. Also, Fritz's car looks the business with the new wing and splitter. Also, the turbo on his car is massive!

 

Looking good Fritz.

Does the GT500 wing sit wider than the car itself or higher than the roof? A gt300 or gt500 wing is in the near future for me as well.

 

Hi Anthony,

Forget about that m3 and track the FD We need A LOT more FDs on track.

RSV...........

I'm heading to VIR with the BMW club this weekend to drive the North course which is a great layout.

Put the turbo bolts in last night which was challenging because I didn't want to take the turbo off to do it. Modified some tools etc... and got the job done. Hopefully now it won't continue to leak oil and I'll be good to go. If not the back up cars are also fun

The wing seems to have tied down the *** end pretty good but I was chilling or not pushing very hard.

Lets just say without PFS in business I'll be turning a LOT of wrenches if I want to continue to track this car That said that's pretty much the case no matter what car you track........like my favorite female artist says it's work work work work work work


Thanks!

The 300 is for show cars. Get the 500. It's about roof high and hip wide.

 

2.06 has to be one of the fastest times a stock engine 930 has clocked at VIR. You, like the late great Ali, are a BAD MAN!!!!!

Nice pics. I had my camera and forgot to get pics

Hopefully see you in the fall

 

Good to know. For the class I run in they are very strict on rear wings not being wider/taller than the body of the car.

For the oil blow by, you can weld an AN fitting to the rear housing oil return line (thats blocked off im assuming) for an extra vent to your catch can. Quite a few FD track guys have reported almost l no blow by after doing this.

 

How did you get 275s in the front? Rolling? Wide fenders?

 

I have some pipes with a fitting welded on that I may resort to if necessary but I like keeping things as simple as possible and I'm hoping the baffled top does the trick and if it doesn't I'll block the down port on the oil fill pedestal and the other port on the catch can. If that doesn't work I may attach one of those pipes I have to the rear housings and see if that does the trick.

Again I never had an issue before removing the stock plumbing when running 1/2 to 1 quart low. That said if I didn't run the oil mid way or lower on the dip stick I had issues. I figured if the oil is sloshing around and filling my catch can it's not doing the engine any good so why put it in the engine.

 

yep fenders are rolled big time and it's still catches the front bumper edge sometimes but that front bumper has been on the car for 10 years and it's seen a lot of carnage.

IMO the best overall wheel and tire setup with a mostly stock FD is the traditional 285 30 18 setup on an 18 x 10 plus 50 wheel. If I wasn't a cheap fvcker I'd have that setup

 

How big is big time? An aggressive roll, or pulled within an inch of their lives?

 

I'd say the biggest compromise to a 275/40-17 up front would be that you'll have to raise the car up a good amount to compensate for an inch taller tire. I run a 255/40-17 up front and 275/40-17 rear. I have problems with the 255s rubbing the fender liners up front and they're an inch shorter than the rear tires.

Fritz good to see the car back on track. Keep us posted on the catch can updates as I'm going through the same struggle now. I have a fancy baffled oil pan, baffled fill neck, and catch can without PCV line to intake and I'm always doing the drain and fill dance before each session. Fortunately I'm not overflowing, but I couldn't go more than 1 session without draining the can before it'd create a mess.

 

Just an aggressive roll with a baseball bat

Will do on the catch can. Is your oil filled over 1/2 way up on the dip stick fill marks?

Are you running a single turbo or twins?

Yep with a 275 40 tire you do need to raise the car about an inch. I think I run at about approx 26.5 inches from the center fender mark.

 

I unfortunately get stuck in a never ending loop with the catch can. I start below 1/2 on the dipstick, then it dumps oil, but it goes down too far for my comfort level in that it goes at or just below the low mark on the dipstick. So then I put in about 1/4 - 1/3 quart, it pumps it back out, I drain it, put more in, etc.

I'm running the bacon sports oil pan that's baffled with extra capacity which I thought would help me be able to keep the proper oil amount while keeping it lower at 1/2 on the dipstick...but it appears to just have more oil in the pan to pump out of the damn neck! I'm afraid to see how far it'd continue to go for fear of running too low, but I've let it get down to the low mark on the dipstick before I panic and it didn't show signs of stopping.

running stock twins, so I cannot use the other oil drain on the passenger side of the motor. Supposedly that's the secret to catch-can success and what I'd recommend for you.

 

Been doing this A LONG time and the only two times I've had issues is with this custom UIM and when I switched to a GZ extra capacity oil pan. Will never again use one of those UNLESS it's built by someone who road races

You may be right regarding using the drain on the rear iron but I don't see how it would be possible for me to have a problem if I block off the other port on the filler neck and block off the other catch can port. The way this filler neck top is designed it will be super difficult for oil to find it's way out.