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Ptrhahn's Silver 93 Track/Street Build

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Old 07-09-17, 07:32 AM
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Brought it out for cars and coffee this morning. Headliner definitely helps the exhaust drone. Worth the 5lbs or whatever
Attached Thumbnails Ptrhahn's Silver 93 Track/Street Build-photo226.jpg   Ptrhahn's Silver 93 Track/Street Build-photo284.jpg   Ptrhahn's Silver 93 Track/Street Build-photo444.jpg  
Old 07-15-17, 01:33 PM
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Thanks Gordon!

Here are the OMP nozzles and check valves epoxied in place with JB Weld high temp putty. Once set, I'll test them with a mityvac.
Attached Thumbnails Ptrhahn's Silver 93 Track/Street Build-photo31.jpg   Ptrhahn's Silver 93 Track/Street Build-photo549.jpg  
Old 07-16-17, 03:57 PM
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I tested the cured nozzles today, and they work great. The hold as much pressure/vac as my mityvac will read, and the flow really will towards the motor. at least as well as the stock units. I probably could've used a slightly larger bodied model (they have many shapes/sizes.

The question will be how they stand up to heat and oil, but the main thing is that even if they leak a little, if they don't fail such that the motor can't pull back through them (as the stockers do), it'll be a little better. The other option I guess is to seal them up, so the oil has no place else to go but in the motor, and then you'll scavenge a bit of oil in vacuum conditions.

I'm loathing pulling it all apart again to install these now.
Old 08-26-17, 12:03 PM
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I've barely been able to touch my car since VIR, so it'll run at Watkins Glen in the same spec Labor Day, including blown OMP nozzles.

I DID, however, find the time to pull together a nitrogen gauge/filling system for the JRZs. For whatever reason, I couldn't find any local shops to do it, save one that wanted $150/corner. Yeah, no. The whole apparatus was less than that.
Attached Thumbnails Ptrhahn's Silver 93 Track/Street Build-photo648.jpg  
Old 08-29-17, 09:38 AM
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Great to see the updates Peter. Good luck at Watkins, just got back myself and had a great time.
Old 08-29-17, 11:37 AM
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Thanks man!

Shooting to match VIR times, I usually run almost the same times at the two tracks. 2:04 is the target.
Old 09-07-17, 09:38 AM
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I'm in Watkins Glen for the week, for the car orgy that includes the INDYCAR race, a two day track even with Chin Motorsports, and the vintage racing festival and race.

Only really got one clean session, as my first three were black flagged after a couple laps for accidents, and day two was rained out.

Even so, I went FIVE seconds faster, and there was more to go. I haven't actually driven here in a couple years and am just tasting the new pavement. Can't wait to try again.

Also snapped a great pic on Franklin Street as the sportscars start filing in for the festival.
Attached Thumbnails Ptrhahn's Silver 93 Track/Street Build-photo475.jpg   Ptrhahn's Silver 93 Track/Street Build-photo403.jpg   Ptrhahn's Silver 93 Track/Street Build-photo84.jpg   Ptrhahn's Silver 93 Track/Street Build-photo437.jpg  
Old 09-09-17, 10:11 AM
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Originally Posted by ptrhahn
I'm in Watkins Glen for the week, for the car orgy that includes the INDYCAR race, a two day track even with Chin Motorsports, and the vintage racing festival and race.

Only really got one clean session, as my first three were black flagged after a couple laps for accidents, and day two was rained out.

Even so, I went FIVE seconds faster, and there was more to go. I haven't actually driven here in a couple years and am just tasting the new pavement. Can't wait to try again.

Also snapped a great pic on Franklin Street as the sportscars start filing in for the festival.
That's what I call some improvement.

Aero and a single turbo are HUGE jumps (5 seconds is more like a leap LOL) for performance in these cars.

We need video

Love the sleeper pic. Most folks don't understand that a DD type car of any sort (R8, GT3, carrera GT etc...) rarely run low 2s at watkins glenn. What both you and smokey are doing is EPIC stuff

Some seat time and you are likely shaving another 2 seconds on R compound hoos. Don't even put slicks on because you might give yourself a concussion LOL
Old 09-09-17, 08:54 PM
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Thanks man,
Video is up. Best three laps run right in a row (although out of order). If I could have just watched this, and drove the next day, I'd have been quicker. I'm over-slowing the car on many entries, and turning in too late. Also, I've been hearing that juddering sound under braking for a couple events, and I think my rear calipers are going:

Old 09-10-17, 09:50 AM
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Originally Posted by ptrhahn
Thanks man,
Video is up. Best three laps run right in a row (although out of order). If I could have just watched this, and drove the next day, I'd have been quicker. I'm over-slowing the car on many entries, and turning in too late. Also, I've been hearing that juddering sound under braking for a couple events, and I think my rear calipers are going:

https://youtu.be/QC6i48Nvv3c
No doubt you could drive a little softer but it may cost you getting into the gas a little later or worse encountering a big slide and completely effing up the lap. Super hard to balance slow in fast out with fast in fast out LOL. There's always give and take. Awesome vid and nice consistent laps
Old 09-13-17, 11:20 AM
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Hey Gordon, depends on the GT3 and the GT3 driver of course, but generally yes, times compare well with road-going GT3s. The only point-by I gave was to a GT3 Cup (race)car.
Old 09-13-17, 09:48 PM
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Thumbs up

Originally Posted by ptrhahn
Brought it out for cars and coffee this morning. Headliner definitely helps the exhaust drone. Worth the 5lbs or whatever

Looking good Peter!
Old 09-14-17, 08:21 AM
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Originally Posted by gmonsen
That's really amazing. Especially since everyone is always saying that the FD chassis is such a flexible flyer compared to more modern sports cars. What do you attribute the still-strong performance to? Is it the basic suspension being so good? The light weight? What?
It's always power and weight but then combine that with a car that pulled close to 1g on the skid pad with sh#tty 225 rubber and you have one badass track car.

As I stated earlier people don't realize how FAST this little 93 car is going. It's literally not only battling with the big dogs (both drivers and cars) it's making them work to get by it. In Pete's case he can run those 2.03 to 2.05 laps for 30 minutes and that's straight up stupid cool. Add some slicks like the P car that passed him had on and he's shaving at least 2 seconds/probably 3 AND likely that GT3 cup will be checking HIS mirror and wondering WTF.... LOL!
Old 09-14-17, 11:26 AM
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New cars have a bunch of traction control nannies that make it easy(ier) to drive on the edge, at least w/o as much driving skill as someone driving an FD (comparably).

I find it annoying
Old 09-14-17, 11:37 AM
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Originally Posted by TomU
New cars have a bunch of traction control nannies that make it easy(ier) to drive on the edge, at least w/o as much driving skill as someone driving an FD (comparably).

I find it annoying
When an experience driver is behind the wheel the 1st thing he'll do is turn that BS off because it slows you down and kills the pads and rotors.

The only advantage new cars have is stiffer chassis, bigger brakes, fatter tires, greater aero/downforce and better ABS.

However with Pete's new wing he's likely on par with most of today's GT cars and possibly beyond.

PS I forgot about the power.........A LOT MORE POWER LOL..........but as mentioned I'm guessing Pete's car is at approx 2700 pounds and it's likely making 375 plus HP so those are some killer #s in a KILLER CAR!!!!

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Old 09-16-17, 07:54 PM
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Great videos and times Peter! Man that car pulls HARD. You have the shorter 5th gear right? It really pulls well even in 5th. Glad to see it coming together for you.

In other notes when I was there they didn't have the workbenches in the garage and now I see them in your pics. WTF Watkins!? I think they might have taken them out in prep for Indy Car when I was there.
Old 09-18-17, 01:23 PM
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Oh I also forgot to mention that when I had a similar brake rotor noise that I heard more in my videos than actually in the car....it was shortly before I'd crack a rotor. Just watch them close and have backups ready.
Old 09-18-17, 01:32 PM
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Haha, I travel with almost a full spare set of brakes—rotors/hats, and a spare set of rear calipers. Been there done that.

The front rotors and pads were brand new, but on the rears I saw some white-crusty stuff on the brake pads which is the tell-tale sign of fluid seepage, so I think that could be a culprit... I can't find any evidence of even the beginning "good" cracking on the rear rotors yet.

Also, yes, I have the short 5th.
Old 09-18-17, 01:45 PM
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Originally Posted by Smokey The Talon
Great videos and times Peter! Man that car pulls HARD. You have the shorter 5th gear right? It really pulls well even in 5th. Glad to see it coming together for you.

In other notes when I was there they didn't have the workbenches in the garage and now I see them in your pics. WTF Watkins!? I think they might have taken them out in prep for Indy Car when I was there.
One thing that would help both of you guys is the 4.3 rear
Old 09-18-17, 01:47 PM
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Originally Posted by gmonsen
I don't drive the more modern cars, Fritz, and have always thought the FD was the best handling car I'd driven. (My old M3 is surprisingly close though.) So, I have wondered about whether its chassis was notably more flexible than newer hot cars. It's kind of the Lotus Elan of the 90's. It's tiny compared to a current Porsche and lighter by a good ways even before stripping it out for racing.
Yep the e30 chassis is phenomenal. One of the coolest track cars I've seen was a full race e30 with a v8 in it. It was fast and reliable and likely put together for less than 30k.
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Old 09-18-17, 01:58 PM
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The 4.3 would be great on some corners, but I already hate the short 5th on the highway.

Needs a 6-speed.
Old 09-18-17, 03:25 PM
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Originally Posted by ptrhahn
The 4.3 would be great on some corners, but I already hate the short 5th on the highway.

Needs a 6-speed.
YEP

I don't even like the long 5th on the HWY. I think it's 3k RPM at 70.
Old 09-18-17, 07:38 PM
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If someone had followed through with an honest 350z trans conversion kit, I.e plug and play, I'd have been all over that.

I've mused for a while about what it would take to put a Porsche transaxle in the back, like a Corvette or 928/924.
Old 09-20-17, 02:26 PM
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Yup, Watkins Glen is an incredibly fast track, and not terribly technical. The lap time is found in getting your head around how fast you can actually go through those corners, and carrying good speed in.

I think the F1 times back in 1980—without the bus stop—were 1:30-something. The Indy car guys were qualifying at 1:22. Really, I i need to be sub-2:XX to really be "fast".

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Old 11-21-17, 01:08 PM
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Just a little off season update. I saw from last time out the tell tail signs of fluid seepage on the rear brake pads (white crusty stuff), so I knew it was time to swap and rebuild. I roll to the track with an extra set of rear calipers, and a full set of replacement rotors/hats. When the front calipers need it, I'll probably buy an extra set of those too. Brakes are too essential, and there's nothing lamer than having brakes cut your event short. It can happen without warning, so I like to be ready.

In any case, here's my extra set, rebuilt by Goldline Brakes, and coated with their special red polymer coating. The old ones are a bit discolored right around where the two "fingers" of the caliper touch the outer pad, but they hold up a lot better than any paint I've ever seen, and they come back looking SWEET, like a set of new Spirit R calipers. I had them coat my Racing Brake extended bracket, too.
Attached Thumbnails Ptrhahn's Silver 93 Track/Street Build-photo125.jpg   Ptrhahn's Silver 93 Track/Street Build-photo581.jpg  

Last edited by ptrhahn; 11-21-17 at 01:12 PM.
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