zetec7 wrote:
I agree, tire pressures should be VERY low compared to other cars. I've heard of other Locosters who run as little as 12-14 psi.
Bear in mind that running 30 psi in a Locost is like running 60-70 psi in a Miata's tires! Squirrely doesn't even come close to describing it! I run my '00 Miata's tires at 24 psi, about as high a pressure as I dare. I did try it at 32 psi once, just for laughs - punched it in 2nd gear (dry, flat, warm, empty parking lot) & spun it instantly. Fun...but terrifying for a street car.
As far as the Webers are concerned, that off-idle stumble is usually dealt with by richening the idle circuit. Guys with Zetec engines have been struggling with that issue for years, and most have ended up richening the idle circuit until the car's blubbering & smoking, just to get it to run. Weber, in concert with Webcon in the UK, has now come out with brand-new, modified 45DCOE's with 5 progression holes which, apparently, cures the problem once and for all. After reading about all the attempts to fix the problem otherwise, over a span of years & with zero success, I caved & bought a set of the new Webers from Webcon. I haven't done engine start yet, but I'm pretty hopeful that the 45's will be very close to right, right out of the boxes.
Good advice......however if I were to replace my carburation, I think I'd go all out and invest in a Jenvey DCOE Heritage set-up. I've got some experience with ITB conversions following my Porsche 911 ITB-Project. Plus, I like the concept that Jenvey has developed:
https://store.jenvey.co.uk/throttle-bod ... r-tdp40-48My last ITB project:
https://www.youtube.com/watch?v=FT-f9ov5ypQ