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xsspeed

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Everything posted by xsspeed

  1. FR? link? I found this one @10.9 but didnt spot engine spec to know if NA for sure, no dosing and intake side suggests NA edit: 10.3 here
  2. Cheers, yep should have some loose pistons around to measure. I was originally thinking add a couple hundred ccs through a 26 crank and slightly bigger pistons to aid low down torque and boost creation but will be interesting how much of a max rpm penalty that would create Mostly I just wanted to talk about rfbs on Roman's page again
  3. cheeky request for rb20det comparing stock crank/rods with rb26 crank/rods, stock vs aftermarket piston would be lush too - at 78/79mm I'm hoping low mass means can rev to the moon even without as good a rod ratio as roman's 4gr
  4. mind you highlander/kluger uses u151f, just depends on offset of transfer case/front axle
  5. ah I assumed it was a st185 maybe it was fwd, they only mentioned E series box and I had automatically thought with transfer case. They hug the block pretty close in 3s guise so you are probably right. good i dont need to waste time pipedreaming that one
  6. I confess my rabbit hole started with st215 caldinas but couldnt find anyone who done that, would be a lush v6 awd wagon
  7. https://www.monkeywrenchracing.com/product/fidanza-flywheel-toyota-2gr-fe-1mz-fe/ saw this when going down a rabbit hole on 2gr st185s, obvs for E series box but not sure if toyota lego applies
  8. lush, just dont do any jumps on those tuffs
  9. Do you know anything about 16s? specifically for 9, 9.5 or 10" wide
  10. not sure floating is how I'd describe but you know, only a chain away
  11. Man I love how I can draw RB comparisons, RB24 is also a unicorn with rb26 bore and rb20 crank, only carb'd and only available in malaysia
  12. i love how we all now know way too much about 4gr's and 1nz's thanks to romandayf
  13. would be interesting to see if you could, I'm guessing either the cranks are mounted higher in a 4gr or the piston compression height is significantly different between the two (or both) to account for such stroke difference. solution is only a custom set of rods away if need be
  14. Keep going, I'm dreaming of 4gr altezza track hacks now What were valves like in the 1nz, obviously a small bore there too, was there any concern there? Yet again comparing this to rb20 (sorry) this is still a big bore, and 20s will happily rev high (maybe not make more power) so I'm guessing the engine characteristics of small light piston and rod ratio/short stroke count for more in pure rpm stakes, and the valves do enough seeing its smaller air volumes per stroke. Hanging out tonsee how this goes Looks way smaller with covers off! Edit: added pic of one of my rb20det heads, looks like 4gr valve setout was rb inspired puhuhu
  15. Flare attached to door is clever, shape of flares works well
  16. also you'll be pleased to know i went down a rabbit hole on engines last night, spotted a contender for someone to tap potential, for a nondescript v8 the 1urfse (lexus ls460) looks like it has potential to apply similar 1nz/4gr logic too assuming those things can translate, geometry is a bit more 2GR so not as rev happy with heavier pistons at 94mm, but 11.8:1 CR, D4S, RR of 1.77
  17. duh i should have just checked dividing it by 60
  18. where 4500fps come from then? for a 4gr with 77mm stroke at 10,000rpm youre looking at 25.6m/s, or 82ish fps
  19. Also, and sorry to fact check,are your numbers right for mean piston speed? I was just doing calcs last night for my rb, using mps=2×stroke x (rpm/60) Top end revs should see around 25m/s give or take. 4500fps is like 1300m/s? Or am I misinterpreting what you're showing?
  20. hey dave whats your estimate on weight diff between the 3s and this? I thought you had said something like 50kg but wondered if youd started weighing anything?
  21. i still cant get over how glorious this thing sounded at full nang
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