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  1. Jay Lutz

    Trailer roofing sealant advice

    I want to make the roof edge joints on my enclosed trailer more robust so I'm looking for a recommendation for some kind of house trailer or enclosed trailer, possibly hot flowing, type sealant recommendation. I went to Bruce Litton trailer sales in Indy (near IRP, ORP, LRP, now ?RP) and they...
  2. Jay Lutz

    Upshift RPM Optimization analysis

    Are you Up-Shifting at the OPTIMUM RPM to minimize lap time .…….for EACH gear?? Real example below shows: 2nd-8500, 3rd-8400, 4th-8300, 5th-8200 Reduce lap time with a CONFIDENTIAL Engineering Analysis You supply: Tire circumference, final drive ratio, all gear ratios, max allowable engine...
  3. Jay Lutz

    Runoffs lunchtime production meeting

    Looking at the schedule, I don't see it on the schedule. Is one planned, when, where??
  4. Jay Lutz

    Arrive and drive rental costs

    Does anyone have any recent ballpark prices or experience on arrive and drive car rental fees............regional level cars OK? Interested in rates for SM, IT cars of various types, SRF, FV, CFF, anything else that is reliable on the track. Also, what kind of "breakage", "crash", etc...
  5. Jay Lutz

    Affordable Caster/Slip plates- See us at PRI

    If you're unsure about how important caster is to handling just ask your friend at the pointy end of the field all about it. Here's a new product that allows you to precisely set caster (on your scales with no suspension binding) without the staggering $700 price of a set of old school...
  6. Jay Lutz

    New Goodyear 13" rains for sale- SOLD

    New 13" Goodyear Rains Four New 20.5 x 7.5 - 13 (D1079) Rain Tires Never Mounted. Bagged and stored properly. Goodyear canceling some sizes forced a change to Hoosiers. Purchase price $218.00 each. Now $700.00 for all four. Can deliver to the Runoffs. Contact Larry Funk at 216-403-2710 for...
  7. Jay Lutz

    Corvette Z06

    Corvette guru's out there. Where would a person go/lurk to look for a nice used Z06....maybe 3 or so years old? Thanks, Jay
  8. Jay Lutz

    Dyno question- static vs. controlled acceleration rate

    Just doing some reading and wondered......is there any of crude rule of thumb that suggests what % less torque is indicated using the closed loop integral control valve acceleration method (say 1000 rpm/sec) compared to old school static methods that we have all used. I realize this can change...
  9. Jay Lutz

    Coolant low pressure switch

    Looking for a local source for one of these or similar. https://www.pegasusautoracing.com/produ ... RecID=9749 Maybe there is a street car that uses one so I can direct my local NAPA or other parts guy. Looking for a PN and source. Turns out Miatas aren't plumbed to give a good heads up...
  10. Jay Lutz

    iphone 4s - dual cameras useful for in car videos??

    The iphone 4s has 2 cameras pointing in opposite directions. Does anyone know if it is possible to simultaeously record fore and aft? If mounted mid windshield it could be great protest evidence. Can anyone tell me if it is possible with or without an add on application? It would seem to be...
  11. Jay Lutz

    Scrap/near scrap rear wing

    Looking for a scrap/near scrap rear wing to give my golf cart a little additional aero downforce. Need around 36" or so undamaged chord length so it doesn't look to hinky. I'll trim it out as needed. Just give me a call if you have anything. Thanks, Jay w: 317-733-9644 x18
  12. Jay Lutz

    Need Rod End substitution guru

    I have an application for a high performance street car where this (3072-10) sperical bearing is used on the rear hub outboard control arm. The bottom lower control arm PN is 3070-12. https://www.pegasusautoracing.com/produ ... oduct=3072 . I wondered if anyone has seen and can direct me...
  13. Jay Lutz

    Intro Helicopter flight lesson

    Any advice from anyone who has tried it? I'm planning to watch some videos and check out a flight manual. Already rigged up my POV hat-cam! If you've done it.....any advice? Robinson R22 Thanks, Jay
  14. Jay Lutz

    Interesting project to watch.....Superb craftmanship

    Here's a link to a CA engineer who is scratch building a rear engined "Lotus 7" called the Midlana.....I guess it will be a track car. Unbelievable craftsmanship. Click on the "build diary" to admire his work and wish you were as skilled. ;^) http://www.midlana.com/
  15. Jay Lutz

    Video and data overlay software

    Who has experience with these type of products? Is it fairly straightforward to get everything all synched up in the absence of a GPS based camera or DAQ. I am aware of this product but no others. http://www.racerender.com/RR2/Features.html Here's the hardware I have...
  16. Jay Lutz

    HANS Recertification

    For those folks with HANS devices older than 5 years (like mine) no need to get a recert yet. Finally something that is logical and makes sense. http://scca.cdn.racersites.com/prod/assets/RM_11-10.pdf
  17. Jay Lutz

    AIM Data Aq E training site

    http://vimeo.com/aimsports/videos This is why I'm so glad I bought my system from AIM....the support NEVER stops and keeps getting better and better and better. By accident I found this site which walks you through a few tricks inside the AIM RaceStudio 2 analysis software. 15 videos so far...
  18. Jay Lutz

    Professional DAQ engineer Runoffs assistance

    If anyone needs pro help who is familiar with all popular DAQ systems a shared opening has come up next Mon, Tues, Wed of Runoffs week at RA. Cost is $500 including all expenses.......John WILL help you go faster. His name is John Block at 800-647-2392 . John holds DAQ training sessions at his...
  19. Jay Lutz

    2 stroke exhaust port carbon blockage question

    Not being very familiar with 2 strokes I thought I'd ask some experts: What symptoms would I expect to see from a semi blocked exhaust port? I'd expect low power but what about idling quality, throttle pickup, need for choke or not, vacuum generation in intake manifold, starting ability...
  20. Jay Lutz

    1.875" ID coil over springs

    Does anyone know what kind of cars typically use springs with this ID? It's a real motorsports application since Eibach lists them in their motorsports catalog. Typical coil over springs are 2.5" ID.
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