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About PoBoyR6

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    2 Wheels...4 Wheels...Engines

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    Houston, TX

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  1. Note 1HP loss is a worst worst case...my calcs were based on peak draw of 25A and normal draw of 18-22A as per the site specs. If an adventure touring bike can handle a 30A accessory draw a Miata (or any car made in the last half century) should handle it no probs.
  2. What are you basing several HP loss on? My napkin calcs show less than 1 HP draw worst case and that is with very conservative 50% efficiency losses...in reality I think the draw should be closer to 1/2 HP under most conditions. Thanks for the info...how hot does it get in those NASCARs...130-140F-ish? I would think you'd want to put a fresh air feed to the unit in addition to mounting it with an air gap to the floor board in extreme cases like those but it might still get toasty if sat on the grid too long in southern summer climes. In this case it would be for a touring bike application so convection cooling won't be much of a concern. Let me know how it goes when you get your system running.
  3. Anyone have experience with the chillout system? www.chilloutsystems.com Specifically compressor & electrical reliability, glycol consumption, general cooling performance, etc. Thanks!
  4. Framing John DeLorean was recently released and is available now on Amazon. Not exactly a motorsport doc, but a very worthy auto related biopic that had some failed attempts by Hollywood to produce over the years since his death...Baldwin did well with the part and although they didn't pull any punches with the story, DeLorean is not portrayed as a villain, they saved that for Chapman (Lotus fanboys beware!) Trailer: On the proper motorsport docu-drama subject, keep an eye out for Ford v Ferrari which is set for a mid November release this year...but am guessing most folks here are already aware of it because of the marketing push Fox has already started ramping up. The niche gearhead flicks gotta get some mainstream attention somehow to make real money... Trailer: As usual post up any other new or favorite flicks for those of us with race fuel in our veins.
  5. PoBoyR6

    Go Kart

    At Houston club level 4-6 in any class is a decent turnout...even 206 sometimes doesn't have much more than that...but generally 206 does have the most entries, usually about 10 give or take. With shifters it really doesn't matter how full the class is, most of the challenge is setting up and driving the kart consistently throughout a race without losing pace due to physical fatigue. You don't really want a bunch of randos out there just making up numbers because of the challenge involved to drive them at the limit properly. When you get to regional or national level with 10-15+ shifters per class, it can be pretty chaotic with expensive/painful multi kart wrecks, flipped karts, etc. If you aren't able to take Jay's sons kart for a test you are welcome to try mine out next time I head out to GCKI. Both me and Jay's son are about the same size as you so seat/pedals should fit pretty well. Jay's kart likely won't have fresh tires, but I will put some fairly fresh rubber on, even though the track won't be rubbered in, so you'll get an idea of what you're getting into. To put it in perspective, when I'm zoned in sometimes I start drooling and it flicks off my cheek to the side of my helmet...I'll show you some simple neck exercises you can do at home to be able to handle the g's.
  6. PoBoyR6

    Go Kart

    On a good day you can get 4-6 shifters, most are masters now since SKUSA announced the 175cc IAME. No one is running it locally or even regionally. That has dropped Senior Shifter kart counts since the youngsters want to wait until that engine is proven, both for tuning and reliability. Stock Honda for Master Shifter is the way to go though, proven, reliable, powerful Honda engine with plentiful cheap parts for those of us who are not chasing the impossible dream of being a pro racer. As for tracks locally its Speedsportz and GCKI, waiting on HKC to finish. More shifters turn up at Speedsportz cause its faster/newer/better facilities but I personally love running at GCKI. The tracks/surface/setup are completely different between them.
  7. PoBoyR6

    Go Kart

    Sent you a PM...I know of a Stock Honda for sale at a really good price. Let me know if you want the contact info assuming its still available. I'm currently racing Master Shifter (over 30 years old) and can answer any questions you have on the class.
  8. Here's an article that discusses the Supra vs Z4 suspension given Toyota's claim that it was developed in isolation. Basically HDA is right (again)...its a bit of a stretch for Toyota to be making that claim. The Supra is essentially a Z4 3.0 with a few pieces from the Z4 M4.0, with the only real differences being the front lower control arm to achieve slightly more aggressive alignment, adaptive damper tuning **SPECULATION ALERT** and steering rack programming **SPECULATION ALERT** So its still very much a Z4 in mind and spirit. https://www.hagerty.com/articles-videos/articles/2019/05/16/2020-toyota-supra-suspension-share-bmw-z4?utm_source=SFMC&utm_medium=email&utm_content=Daily_News_Monday_May_20
  9. Will definitely be racing SM there! But not sure about karts yet, for DFW folks it will be a no brainer but we are pretty spoiled for kart tracks in Houston, once HKC is finished there will be three to race on...and will have to wait and see if KartMoto is worth the drive versus established North Texas kart tracks like Denton and DKC.
  10. I hear you on only caring about the performance side and not the mundane daily life stuff and understand where you are coming from given your points of reference...but the ZF8 really is like the best of both worlds. Everything Jason was gushing about in the video has been true in my experience. Hopefully you've seen other vids from his channel and can trust his judgement. Most folks are fooled into thinking they are driving a DCT when they are driving the ZF8. The software has even gotten better over the years which is why I think Toyota made the right choice to only offer the ZF8 in the Supra. Three pedal cars at the $50k price point are like Stanley Steamers nowadays and if Toyota barely had a business case for building the Supra by platform sharing with BMW, I don't think there is any chance of a manual being offered now or in the future, the market just isn't there anymore. And no, a handful of people on car forums whining about a lack of manual that likely wouldn't buy the car regardless do not equate to a market segment. I remember when the GT-R purists said they would not buy the R35 unless it was offered in a manual...they eventually caved and (most) eventually admitted Nissan got it right.
  11. For spirited/track driving you just put it in manual mode and select whatever gear you want. Doesn't upshift on the limiter. Only changes down to avoid stalling and cancels down change requests that would blow up the motor like any other DCT. For street driving in auto mode, depending on selected drive mode and personal preference/mood of course, it is spooky good at knowing what gear I want to be in. I very rarely feel the need to grab a paddle to override the chosen gear. Regarding cooling on track I've never had an issue, the gearbox oil is specific to the ZF8 and is more like conventional oil than ATF so it handles heat very well but also responds fairly decent on cold starts. And yes, it works amazing in traffic...derp.
  12. Great video thanks for sharing! Yes...everything Jason said +1...ha. The biggest giveaway is how many high end sports/luxury car makers are using the ZF8. Its so good its basically a no brainer for nearly every type of vehicle application.
  13. If a DCT would be acceptable for those who like everything about the car except for the auto trans I can pretty much guarantee the ZF8 would also be acceptable. Like the articles say...its the best auto trans I've ever driven and when you put it in manual/paddleshift mode I would say it provides 95% of the performance you get from a DCT. That final 5% is not necessary unless its a dedicated track/competition car. For a daily/occasional track car it may just be the best transmission ever made...assuming you don't want three pedals of course...
  14. Loving the SM track application intent. I think I can make out the intended dirt section/jump...is the paved whoop/jump section the squiggly part just before it? Hard to tell elevations from the pic angle...
  15. For what its worth as it pertains to data analysis and building speed…I look at it like a pyramid with three layers going up in difficulty from easy to hard and from high margins to low margins, generally speaking. The bottom layer is corner exit (throttle application) with fairly high margins especially when the corner leads to a straight, like several tenths to second(s). Middle layer is corner entry (braking), not as high margins as corner exit but still usually enough to measure in multiple tenths. And the top layer is mid corner speed where margins are super small assuming entry and exit are already maxed out…like fractions of tenths. Getting from the bottom to the middle layer is what separates Joes from Pros but getting to the top by linking corner exit and entry with maximum mid corner speed is what separates Pros from Aliens, with the Alien Unicorns who can do it corner after corner, lap after lap regardless of changes in tire grip, fuel load, track conditions, etc.
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