free hit
mike_sekinger's Content - Page 13 - The Lotus Forums - Lotus Community Partner #ForTheOwners Jump to content


Full Forum Member (FFM)
  • Posts

  • Joined

  • Last visited

  • Days Won


Everything posted by mike_sekinger

  1. It's running with the stock FPR.
  2. I'm running a Motec M800 with twin wideband enabled if anyone want to follow that route.
  3. The bearing spec was changed quite early on. As I understand it, the majority of the failures were due to insufficient torquing of the IMS bolt.
  4. Sounds like everything is very much in the right hands. Fingers crossed that your crank can be reclaimed after your oil pressure failure. I would agree with your Workshop that for stock power there is really nothing that needs to be addressed apart from the IMS safeguard. Hope you are back on the road soon.
  5. What is the scope and reason behind the rebuild? Was something damaged or are you just re-freshing/overhauling the engine? In general, I would not recommend the outlay of upgrading parts if you are really only after a stock power output. If you do not drive the car hard, then the stock components will be fine. However, if you are already considering installing some new stock components (e.g. new pistons and liners), then do the math and investigate what additional expense to take some forged pistons. In terms of advantages of forged pistons for stock output, there aren't really any. In fact there is a theortical disadvantage in that the forged pistons do not include the Big end thrust offset that is included in the 918 piston design (meaning that are truly symmetrical). Independant of the pistons, the other very worthwhile mod would be to install a scotch key on the IMS/primary drive. This will safeguard any issues with the IMS bolt not having sufficient clamp force and the engine losing cam timing. Who are you entrusting the engine build to? He should also be a guiding force in determining what needs replacing once everything has been inspected.
  6. It's not difficult to remove the plenum and explained pretty clearly in the Service Notes. Just be careful as you will have fuel connections to remove. You might want to consider re-doing both plenum and cam covers and be free to choose a suitable colour/shade. Lotus used a variety of finishes over time, so matching either crinkle or splatter finished may not be easy.
  7. That's a very similar intercooler arrangement to Dave Clare's V8, which uses an adapted Lotus Carlton chargecooler.
  8. Sacha's R475AAH is back up and running since May 2020. It's a great idea to get the two cars back together for a social. I'd message Sacha (Mightymetro) and get a conversation going.
  9. Yes, Johan Hybinette's legendary SuperBee. Johan really went balls-out with chargecooling, increased boost, Nitrous and Propane for additional intake cooling There is also a Drag Racing Esprit in Greece which is extremely fast, but it is not running the 918 engine.
  10. Nice work. I would be interested in a set of stainless brackets for the front bumper.
  11. Yes, agreed turning the engine from underneath is easier. Popping up and down is a bit tedious. I've experienced dependable readings with changes but manually playing with the belt will affect the frequency reading. The tensioning positions and values for new belts were re-specified in a Service Bulletin in mid-1999.
  12. Good stuff. It's definately not a job to rush. I dug out the images showing the comparison between the Clavis and the software app. I remember that I did source a decent low frequency microphone for this.
  13. It would certainly help in getting the engine oil up to a decent operating temperature quickly. I don't have any empirical data on how long it typically takes. Based on observations, the oil temps come up pretty quickly even with the coolers in place.
  14. Hi Alan, The filter housing does not contain any thermostatic flow control. I've not heard of anyone fitting one. I always bypass the oil coolers when starting-up a fresh engine, but that's just for speeding up establishment of the oil pressure and not normal running of the engine.
  15. Then you have your answer 🙂 Now you know the reference point, make your crank position pointer and you are on your way.
  16. Yes. The camshaft drillings are all made with that one reference to 10deg BTDC #2 cylinder (firing). The TV Damper should have a marking on the side corresondining to that. It may have been missing on very early cars, but I can#t say that I've seen one without it. Note: that the crank needs to be turned twice for one complete revolution of the engine (half-speed idler)
  17. Absolutely. I did a back to back comparison between a genuine Clavis and a smart phone app back in 2008. There was only a couple of Hz difference.
  18. SJ came through with some more details on the Helix upgraded clutch. There are two upgrade options: Torque capacity Cost (GBP) 524Nm / 385 lb ft 1210.64 625Nm / 460 lb ft 1290.45 I believe that SJ stock only the lower of the two.
  19. Hi Tim, Seems that there are no specific increased clamp or release load figures for the upgraded Helix option. Just a statement of it being `30% stronger` If you are running standard power, then I would be leaning towards sticking with AP. Mike S
  20. In the past, the HD Gates blue belts were only available from JAE in USA. Maybe they bought in some stock and are currently out. You can always get them from JAE.
  21. Hi Andy, If you can get the heavy duty Gates belts, I would go for them. I've found that they retain their tensioning settings extremely well over time. Mike S
  22. Hey Ruud, did you make any progress with your issue?
  • Create New...