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Ptrhahn's Silver 93 Track/Street Build

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Old 03-16-14, 10:32 AM
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Ptrhahn's Silver 93 Track/Street Build

I'm long overdue for a build thread to document all the mods I've done as my car evolves from a twin turbo trackable street car build, to a streetable track car build. It'll take a bit to bring it up to the present, with lots of stuff being done in the last couple years. Check back often!
Attached Thumbnails Ptrhahn's Silver 93 Track/Street Build-mk4_9367_rt.jpg  
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Old 03-16-14, 11:27 AM
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Only a couple of years behind.
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Old 03-16-14, 01:22 PM
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car is gorgeous! took me 10 years to finally do my build thread :-)
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Old 03-16-14, 03:27 PM
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Looking forward to it Pete.
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Old 03-16-14, 04:48 PM
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Old 03-17-14, 12:28 PM
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Update? haha
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Old 03-17-14, 01:38 PM
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Awesome to see you do this Peter. Subscribed.
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Old 03-17-14, 03:00 PM
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Yea this thread is useless without pics....
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Old 03-17-14, 03:06 PM
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Looking forward to seeing the progress .. or well what was progress at some point in time . atleast. LOL
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Old 03-17-14, 03:09 PM
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We will all bear witness to THE GREATEST twin turbo FD in the country
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Old 03-17-14, 03:13 PM
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Need more update and pictures
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Old 03-17-14, 03:15 PM
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Originally Posted by Fd3BOOST View Post
Yea this thread is useless without pics....
Agreed

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Old 03-18-14, 05:01 PM
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LOL, I didn't realize there was such pent up demand. I need some time to pull all my pics together but I'll drop some teaser car **** in here. JRZ race double adjustables, with Hypercoil 700/600 main springs and tender springs, Cusco upper mounts. Gold heat foil on front canisters, because they live in the engine bay:
Attached Thumbnails Ptrhahn's Silver 93 Track/Street Build-102_0130.jpg  
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Old 03-19-14, 09:25 AM
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Originally Posted by ptrhahn View Post
LOL, I didn't realize there was such pent up demand. I need some time to pull all my pics together but I'll drop some teaser car **** in here. JRZ race double adjustables, with Hypercoil 700/600 main springs and tender springs, Cusco upper mounts. Gold heat foil on front canisters, because they live in the engine bay:
Now I know why I was shaken and slapped in face at 3am by some crazy women yelling who the f#ck is JRZ
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Old 03-19-14, 01:50 PM
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Here's where it started. First track day in 1999 with the RX-7 (I'd done a Skip Barber 3-day years prior). It was a '93 Touring model, and I'd added a PFS cat-back, downpipe, PFS Intercooler/IC, a PFS purple piggyback computer, Koni/Eibach shock/spring combo, 17x9" SSR Integrals with 245/40/17 Bridgestone RE-71's... and some PFS "performance" brake pads which completely fried after one day on Summit Point's Jefferson Circuit.

This event was attended by notable others like Fritz and Crispy, and some guy named "Ryan" from Pennsylvania with a heavily modded (for the time) car that was prominent on the big list I think.
Attached Thumbnails Ptrhahn's Silver 93 Track/Street Build-track1.jpg   Ptrhahn's Silver 93 Track/Street Build-track2.jpg  

Last edited by ptrhahn; 03-19-14 at 01:54 PM.
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Old 03-19-14, 02:11 PM
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Shortly thereafter, a small rodent decided to nap in my radiator fans, and never made it out. He jammed up the fan on my first drive during a hot summer, the car overheated, and gone were the water seals. Car was taken to KD Rotory where Dave & Kim installed what was a FANTASTIC street-ported motor, with normal oil mods, ported water jackets, and upgraded water o-rings. At the time, I added a Fluidyne radiator and an ACT Street/Strip clutch and 9.5 lb SR motorsports flywheel.
Attached Thumbnails Ptrhahn's Silver 93 Track/Street Build-mvc-009s.jpg   Ptrhahn's Silver 93 Track/Street Build-mvc-011s.jpg   Ptrhahn's Silver 93 Track/Street Build-mvc-013s.jpg   Ptrhahn's Silver 93 Track/Street Build-mvc-014s.jpg   Ptrhahn's Silver 93 Track/Street Build-mvc-002s.jpg  

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Old 03-19-14, 02:17 PM
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Hey Peter

It sucks to hear you had to redo your engine because of a road kill but I'm sure your also happy to know you have a fresh engine to start playing around with

What are you going to do to avoid the same problem to repeat itself? I have the same bumper as you

Andrew
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Old 03-19-14, 02:24 PM
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Car was tracked virtually unchanged mechanically from 2000 through 2004. I replaced the PFS computer with a PFC, and added a high flow cat, and had the car partially repainted.

Then in late 2004-2005, I did the first set of major upgrades. I added Crooked Willow dual oil coolers, used '99 turbos and a resonated mid-pipe, StopTech brakes, and a beautiful set of BBS RG-R wheels, the first ones on an RX-7 as far as I know.
Attached Thumbnails Ptrhahn's Silver 93 Track/Street Build-dscn2062.jpg   Ptrhahn's Silver 93 Track/Street Build-dscn2064.jpg   Ptrhahn's Silver 93 Track/Street Build-dscn2071.jpg   Ptrhahn's Silver 93 Track/Street Build-dscn2049.jpg   Ptrhahn's Silver 93 Track/Street Build-dscn2057.jpg  

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Old 03-19-14, 02:38 PM
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In late 2005, I added a urathane '99 plateless bumper from the original Rotary Extreme group buy:
Attached Thumbnails Ptrhahn's Silver 93 Track/Street Build-dscn2101.jpg   Ptrhahn's Silver 93 Track/Street Build-99_nose_2.jpg   Ptrhahn's Silver 93 Track/Street Build-99_nose_3.jpg  
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Old 03-19-14, 02:50 PM
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I tracked the car about twice before the idea of getting crappy brake dust all over my BBS wheels, and tearing up my street tires didn't sound like a good idea.

I bought a U-Haul hitch, and a set of 17x9.5 SSR Competition wheels with 275/40/17 Khumo Victoracers from Fritz, and a track trailerette from my friend Rich Mills. Somewhere along the line, I upgraded the Eibach pro-kit springs to a Ground Control 500/400 setup.

I used the SSRs for a couple of events, and then snagged the 18x10" Technomagnesio wheels with 285/30/18 Hoosiers in a swap back to Fritz. I also got wise finally, and installed an M2/Raceshop chromoly roll bar.
Attached Thumbnails Ptrhahn's Silver 93 Track/Street Build-376_35496858185_5678_n.jpg   Ptrhahn's Silver 93 Track/Street Build-technos_1.jpg  
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Old 03-19-14, 03:01 PM
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Here's some custom stuff:

Oil catch can:
I always had a problem with over-filling (and spilling) from the little pint-sized Jaz breather can that most people used. I tried the GReddy, but it's a total pain to empty, so I made a whole series of custom solutions. Here's one of them. Yes, it's a bike water bottle. It actually worked great, and was super easy to drain. The only real trouble was, after a while the heat deteriorates the cap plastic, and it doesn't stay screwed on tight. I got tired (eventually) of making new ones, but I ran this solution for years.
Attached Thumbnails Ptrhahn's Silver 93 Track/Street Build-n_a-3-.jpg   Ptrhahn's Silver 93 Track/Street Build-n_a-4-.jpg   Ptrhahn's Silver 93 Track/Street Build-n_a-5-.jpg  

Last edited by ptrhahn; 03-19-14 at 03:07 PM.
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Old 03-19-14, 03:05 PM
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'99/CWR Oil Cooler Ducts
These were a total pain in the ***. I made them by shaping blocks of carving foam on the car, and then wrapping the bucks with fiberglass-impregnated casting tape I got from a medical supply store. You just wet the roll, roll it out, and let it harden (which it does rather quickly). Cut them in half to get them off the buck, bond them back together, paint/seal, and there you go.

They're still on the car.
Attached Thumbnails Ptrhahn's Silver 93 Track/Street Build-n_a.jpg   Ptrhahn's Silver 93 Track/Street Build-n_a-1-.jpg   Ptrhahn's Silver 93 Track/Street Build-n_a-2-.jpg  
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Old 03-19-14, 03:22 PM
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CWR Replica IC

At some point, the little PFS Intake/IC combo wasn't enough to keep temps down on track. While his car was down awaiting a new motor, Crispy let me borrow his CWR intercooler. It worked so well, I acquired a used CWR intake, and a replica duct from Ati-Hun (now Ronin Speedworks), and had an intercooler made by Bell Intercoolers to my spec. Comparison shows the better fin density and more rows compared to original Spearco based CWR cooler.

I've since replaced the FG duct with a CF one, and the CWR intake with a CF M2 intake, and had better piping made. This takes us up to about 2007.
Attached Thumbnails Ptrhahn's Silver 93 Track/Street Build-cwr_install_1.jpg   Ptrhahn's Silver 93 Track/Street Build-cwr_install_2.jpg   Ptrhahn's Silver 93 Track/Street Build-ic_core.jpg   Ptrhahn's Silver 93 Track/Street Build-endtank.jpg   Ptrhahn's Silver 93 Track/Street Build-fin_density.jpg  


Last edited by ptrhahn; 03-19-14 at 03:24 PM.
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Old 03-19-14, 04:12 PM
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cool!
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Old 03-19-14, 05:43 PM
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Originally Posted by ptrhahn View Post
In late 2005, I added a urathane '99 plateless bumper from the original Rotary Extreme group buy:
I was in on that group buy but never used the bumper and ended up selling it.
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