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KnifeySpoony

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Everything posted by KnifeySpoony

  1. I guess I never updated this thread with my solution, which has been working perfectly. The tie-down is probably overkill in terms of strength for such a light battery, but I am a bit paranoid. Also, I still lost a total of 16lbs from the OEM setup.
  2. Yeah first thought was that looks like an s3 tube on an SV chassis. Typical Caterham lol
  3. These are high dollar actual replicas, not donor car/kit car frankensteins. They are visually and mechanically identical to the actual $30M cars that they have at home. They commission a $1M replica to go racing at goodwood.
  4. FWIW I've heard that a lot of those cars are replicas.
  5. I went last year, it was awesome. I stayed in Winchester the night before, but I was on a 2 week roadtrip at the time. Got grandstand seats which were nice to have. There's so much to see, you can't really do it all in one day. It's bigger than Disneyland.
  6. If you're a biker, I assume you do basic motorcycle maintenance? If you do oil changes/chain maintenance/etc, you can probably maintain a 7 on your own with minimal new tools needed.
  7. If you plan on doing literally no wrenching on the car, I'd advise having a plan on who will service/repair/troubleshoot/look over the car once you own it. These cars need more care and feeding than a "normal" car.
  8. I have one installed in my car but it has the roller barrel tune on it...
  9. Of all the issues one can have with a 7, I wouldn't consider cockpit heat a "major" issue. There are many comfort/practicality/reliability/etc sacrifices made with owning a 7. Being a little hot inside is just another in a long list. The newer cars (ie all 420Rs) have insulation on the tunnel/footwells from the factory. I think most of the chatter on wrapping headers is on RHD duratec cars, as the exhaust puts more heat onto their driver's side. Please post a pic of your dream configurator spec...
  10. I have an ATX12 in my 420R without issues.
  11. Keep an eye on the position of the tire on the rim - if you're tracking it, you'll probably see that the tire walks on the rim. Because of this some people just static balance the wheel, then never balance again with the tire on, as the balance will shift over time. Obviously, you could rebalance after every trackday if you wanted too.
  12. Well.. It's kinda solved but now there's a new symptom. Now the 5-20% throttle range is smooth, but from 0-3%, ie initial tip-in there is hesitation/sputtering/misfire. And it does it immediately after starting even when cold. Car starts instantly and idles fine. Giving it verrry slight throttle will cause it to sputter/miss. More throttle and it revs fine. Interesting the drastic change in behavior with the new 02 sensor but not sure how to interpret. I'm thinking the 02 sensor isn't even active when the car is freshly started so I don't understand why the new sensor would cause this behavior. I'm going to triple check the TPS voltage, roller idle spacing, sparkplugs, etc.
  13. They do actually, assuming you're looking at hp and lb ft.
  14. I'm more impressed by how our spindly chassis and thin rollbars are so strong.
  15. On modern 420/620 the oil cooler cooler is mounted below the water rad. It's very small but the oil is still overcooled in all but the most demanding track situations (ie high ambient temps and nose/tail drafting).
  16. Update: new o2 sensor and problem seems solved.
  17. I'll be honest, I'm not sure how to rig such a thing up. Please post pics!
  18. Apparently a common issue. There's a few threads on blatchat and this one just recently on pistonheads: https://www.pistonheads.com/gassing/topic.asp?h=0&f=23&t=2032116
  19. At first i only saw the listing for 6000 minimum, but now i see the single orders one. Thx.
  20. Do you have a source for econoseal pins? I've had a heck of time finding them in quantities of less than 1000, or without also having to buy a bunch of connectors I don't need.
  21. I'm not as pessimistic. I think they're just trying to size up to meet current demand, not try to really grow or change the market. I do wonder if the EU exemption for low volume ICE cars has catalyzed the decision to move.
  22. Yes tons on hoses (coolant and oil). I've seen many racecars (even LMP cars etc) with zipties on coolant hoses and oil lines). Pretty sure it's not an issue...
  23. I don't see anything wrong with using the standard black UV rated zip ties. I think they can easily handle the heat. My car is 17% by weight zip ties and I haven't seen any issues.
  24. 1750 is very high. Mine idles around 1100. Another common problem is tachs reading high or low. Also another problem that Caterham doesn't know how to fix. If your tach seems off, check the dip switches on the gauge itself to make sure they're set correctly. The info is on this forum; should be easy to find with a search.
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