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Message: <blockquote data-quote="oscar" data-source="post: 164291" data-attributes="member: 2757">i'm sure i said this a while back but with a fuel pressure of 45 psi max on 240cc 172/182 injectors at a duty cycle of 85 (this should NEVER be exceeded, injector manufcaturers know their stuff and they recommend never to exceed this for a very good reason) you will achieve no more than 132 bhp. to achieve 150 bhp on OEM fuel pump at the same 3bar, 85% duty cycle with a flow rate of 26 pph you will require 270cc + injectors. IWP043 (330cc injectors) the twingo gt's fuel pump is a 3bar fuel pump, the above was calculated on full flow at 3 bar. if we take it down to 2 bar and allow a fuel return at full engine load on the map, at 85% duty cycle the OEM fuel pump will more than cope. i'll also go out on a limb and say that the fuelling for the GT is equal to that of the 133 on full pelt, therefore will share the same pump or if not the same exact pump they will both operate at the same flow rates with a maximum pressure of 3 bar (45 psi approximately)edit - i forgot to mention that the IWP043 injectors are also for the clio, usually good for when the clio boys install throttle body's and the RS2 manifold as well as light turbo charging applications but again usually run this at close to 100% duty cycle and approaching their maximum flow rates which is why there are always lots of cheap injectors on cs.net which is handy for folk who just want a basic map + slightly bigger injectors for their gt's <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big grin    :D" loading="lazy" data-shortname=":D" /></blockquote>

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