What size ITB should I use - Racehead Engineering
https://racehead.com.au/designing-performance/what-size-itb-should-i-use/
We installed a set of 40mm ITB's to a standard BMW m20 325i engine. No other engine modifications were made at that time and this is the result, a nice 18wKw (25wHp) gain from 112Kw to 130Kw. It can be clearly seen from the dyno overlay that the previous power curve using the std manifold is always under the ITB power curve so this intake improved ...
We installed a set of 40mm ITB's to a standard BMW m20 325i engine. No other engine modifications were made at that time and this is the result, a nice 18wKw (25wHp) gain from 112Kw to 130Kw. It can be clearly seen from the dyno overlay that the previous power curve using the std manifold is always under the ITB power curve so this intake improved ...
DA: 31 PA: 63 MOZ Rank: 75