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Rover with a turbo, or: How to build a reliable turbo track car. SPM S1, NASA ST3/4

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Old 03-16-2017, 01:25 PM
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Great info here, thanks!
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Old 03-16-2017, 01:30 PM
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Thanks for documenting this. It's a matter of time before we go down this path on one project or another.
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Old 03-16-2017, 01:40 PM
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Originally Posted by dleavitt
Those flares look pretty skookum!
Skookum as FRIG!
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Old 03-16-2017, 02:19 PM
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I hadn't realized nobody has documented this before... I guess the cameras get put away when the sparks start flying. Looks good Andrew!
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Old 03-16-2017, 08:50 PM
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Originally Posted by Savington
(anyone else watch AvE?)
Keep you know what in the you know where.

Originally Posted by ThePass
I hadn't realized nobody has documented this before... I guess the cameras get put away when the sparks start flying. Looks good Andrew!
You're right, cutting a perfectly good fender is always a high stress situation, last thing I wanted was to take pictures.
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Old 03-24-2017, 10:44 PM
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Good weekend at Chuckwalla. It's a hellacious 1000+mile round-trip tow but such a cool track that I make the trek once a year. Car performed well with a couple of hiccups. In the mornings with temps in the mid 70s, the car would run full sessions, but in the full afternoon 95F+ heat, I was only able to do a couple of laps at a time. I'll be re-doing the ducting and adding a fan to the radiator as well to try to bring the summer temps under control. Also going to redo the heat padding in the driver's footwell, I'm not happy with the first solution I tried. Going to shell out for the $150 Koolmat SM setup.

Fast lap from Sunday morning below. Car is a little tight on entry and I miss a shift, so a little more setup time and less sucky driving would put it deep into the 55s. IIRC Emilio was in the 2:01 range in the same session in his S2 on fresh RC-1s.

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Old 03-25-2017, 12:27 AM
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my car will be there eventually. Mark my words.
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Old 03-25-2017, 11:00 PM
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I've been following the S1 videos on YouTube for the last week and I find them very inspiring. I know you guys are racers and not videographers but I'd love to one day see someone do a spotlight on S1's where their features are filmed and discussed in detail.
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Old 03-26-2017, 12:37 AM
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Originally Posted by Philosopher
I've been following the S1 videos on YouTube for the last week and I find them very inspiring. I know you guys are racers and not videographers but I'd love to one day see someone do a spotlight on S1's where their features are filmed and discussed in detail.
Features wise, I'd suggest checking out the rules: http://supermiata.com/supermiata-rul...ions/s1-class/

When my car is done, we'll do a walkaround.
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Old 03-26-2017, 01:01 AM
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Emilio, sorry if I missed this before but, when do you plan on getting your car back? I live like 1min away from TC so I was able to take a peek at the car a while back.
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Old 03-26-2017, 09:32 AM
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I planned on getting mine back in November of last year. Sigh.
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Old 03-26-2017, 05:02 PM
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Originally Posted by emilio700
I planned on getting mine back in November of last year. Sigh.
Why is it taking so long? Are they just backed up?
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Old 03-26-2017, 08:09 PM
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Could you see an improvement in grip with the wide tires? So much torque and zero lag, such a nice setup!
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Old 04-03-2017, 03:08 AM
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Originally Posted by Savington
I'll be re-doing the ducting
Got to that sooner than expected.

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Built a tube bumper to replace the OEM support, then cut the OEM bumper beam out of the car to make room for this. First prototype so half the holes don't line up and it's not far enough forward. . About a 4" tall opening at the front which stretches to ~8" at the back. Fully sealed with weather stripping directly to the radiator core, so the air has nowhere else to go. Testing tomorrow at Thunderhill in ~75*F weather, but the real test will be in a few weeks at Spring Mountain.

Also playing with oil cooler location since the new radiator ducting forced me to move it. This was going to be temporary (hence the spaghetti hoses), but I kind of like it here. The "duct" is just a shield to protect the cooler from road spray off the tire, but I can just as easily expand it and pull air from the IC box or directly from the bumper. The other option is to downsize the core to a 19 or 22 row and drop it behind the intercooler. The latter is more repeatable so I am leaning that way.

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Old 04-03-2017, 05:02 AM
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Looking good!
Hope things go well tomorrow!
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Old 04-12-2017, 02:02 PM
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Do you have something purple to post?
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Old 04-13-2017, 11:57 AM
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Where is the oil cooler fed from there, air-wise? I'm trying to plan out where to stick a couple 25 or 34 row ones (because rotary)
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Old 04-19-2017, 09:27 PM
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Went up to Thunderhill West for a low-key day with one of my friends. Set fast lap of the day and turned some heads. One big mistake on this lap so the car is easily capable of dipping into the 1:21s here. Had fun, ran all 5 sessions, no hiccups to report. The Koolmat kit in the driver's footwell was excellent, those will be added to the site shortly.

Friend brought his bone-stock SS 1LE, down to the Goodyear Eagles. He was lapping in the 1:25s all day, then put his milk-crate of spares back in the trunk and cruised it home. Kind of freaky.



More radiator ducting and a big 13" fan going on this week, then four driver-days at Spring Mountain this weekend.

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Old 04-20-2017, 01:05 AM
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Are you just running a straight pipe? Or is it resonated? I need my car to pop like yours. Although that is probably in the tune, not exhaust.
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Old 04-20-2017, 01:09 AM
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Retard timing to -10*
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