2024年1月30日 · Keen to hear peoples view on correct ITB sizing (throttle plate) for a road race K20. Assume it has the necessary valve springs / RR3 cams and I will be tuning the runner length on the dyno. Joe McCarthy was of the view that given the port size (47mm equivalent) you needed a minimum of 54mm to account for the flow loss due to the plate, shaft etc.

2008年3月11日 · A plenum design, with adjustable plenum displacement, and adjustable runner length would be the tits. The same plenum for a K20, may suck on a k24. With ITB's you can adjust the lengths and size to your application. Spacers, air horns, throttle body size.

2010年7月4日 · pro's= mad powa :dance: con's= daily tuning, ITB's possibly sucking in foreign objects if you want to go all motor and daily drive look at the center throttle body manifolds, either custom or Hayward Manifold, IPS Manifold, Excessive manifold

2011年5月16日 · I also have a K24A1 block sitting in my garage, but an hesitant to spend the money to build it now since my K20 bottom end is minty fresh with OEM 11.5 compression and just a great overall race motor. For now, I want to add to my current setup to make some more ponies, and some more mid-range power if possible.

2017年4月3日 · I have a RRC manifold (brand new in box) laying around but also thinking about itb for my k20 engine. Car is a Lotus elise with a stock k20a2 (eu spec) engine. JDM cams are being ordered (couldn´t justify the Toda A3 cams as they are very expensive...) Should i stick to the RRC manifold or go directly ITB. What power and torque gains can be ...

2014年3月21日 · Keep in mind that people were making nice gains with homemade itb setups (using gsxr itbs) on d-series and b-series setups... So you don't need a wild build, or $3k itbs to get results... Also, kind of curious about the previous comment from the_unknown that the 52mm itb is too small for k-series... That really doesn't sound right...

2011年8月3日 · a bit of this varies. it depends on the craziness of your motor, what ITB's you use, who tuned it, the atmosphere your car is in/out of, and how often you fiddle with the ITB's, keeping them maintained. I think there are quite a few people driving around weekend warriors with ITB's though so you should get some good info back.

2010年2月6日 · hey everyone, i know that some things might be already covered and/or discussed. i'm up here in toronto and i'm looking into doing a fully built k24/k20 ITB motor. i would LIKE to make around 300whp IF possible. (please no flaming, i'd like to keep this thread as junk free as internet forum possible).

2015年5月26日 · Thanks for getting me straight on the airflow loss. I love the build and great idea on the modification. I am sure having ITB is crisp, the ram air will make it better.Thanks for sharing the pictures. I miss my EP3. I had nice parts on it and the car performed well on the road course. 300HP was nice too with 209WTQ.

2011年5月11日 · Thats my old setup for my K20 build,but for now ive been changed to K24,but i still want to keep the TODA ITB since they have great craftmentship and qulity,and also i had bought the Full Carbon Air Box for restrict the hot air thats quite important for a ITB setup.I know for a 50mm throttle...