Quote:
Originally Posted by -=Jeff=-
I don't disagree, but if the goal is to allow for reverting to stock, I would do what Perry did. if the goal was max power and I was porting, then yes remove them cause once you port those butterflies will not do their intended function
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And, point of (further) fact, the Gen-III LT5 went so far as to Siamese both runners (into one). And, with the help of some tricky (dynamic lift) lifter scheme and variable fuel pressure, a single injector was used instead of two. IIRC Graham (in his presentation on the motor at the 2016 or 2017(?) Gathering) said that this 350 cid motor made 550 chp on pump gas.
My point is, performance improvements via porting developments pioneered by Pete Polatsidis and Marc Haibeck and others showed just how badly the stock LT5 was starved for air: acknowledged (IMO) by the changes Lotus made to the gen-III motor's intake plenum/heads: AND, NO SECONDARIES.
Note of interest: Someone correct me if I'm wrong, but I believe this gen-III motor was (IIRC) installed in a car owned by Graham Behan (former engineer for Lotus and Lingenfelter before going out on his own).