grum-glanza Posted February 23, 2014 Share Posted February 23, 2014 This one is more for lads running over 300bhp what size aftermarket throttle body should you use or is it just the bigger the better? Quote Link to post Share on other sites
maddox710 Posted February 23, 2014 Share Posted February 23, 2014 Not necessarily the standard inlet mani and throttle body is good for 300bhp Quote Link to post Share on other sites
grum-glanza Posted February 23, 2014 Author Share Posted February 23, 2014 ya but im kinda looking for 400bhp Quote Link to post Share on other sites
RobSR Posted February 23, 2014 Share Posted February 23, 2014 ^ Whats your current spec? Quote Link to post Share on other sites
AdamB Posted February 23, 2014 Share Posted February 23, 2014 (edited) 65mm Edited February 23, 2014 by AdamB Quote Link to post Share on other sites
grum-glanza Posted February 23, 2014 Author Share Posted February 23, 2014 adamb that's perfect I was planning on using a 70mm one Quote Link to post Share on other sites
RobSR Posted February 23, 2014 Share Posted February 23, 2014 What have you already done tho? Inlet mani/tb is one of the last thing that needs to be changed on a starlet. Have you done everything else thats going to give you better gains first? Quote Link to post Share on other sites
mattyD Posted February 23, 2014 Share Posted February 23, 2014 In running a 65mm one Quote Link to post Share on other sites
Jamie_VF22 Posted February 23, 2014 Share Posted February 23, 2014 (edited) Im running a 70mm one Edited February 23, 2014 by Jamie_VF22 Quote Link to post Share on other sites
AdamB Posted February 23, 2014 Share Posted February 23, 2014 adamb that's perfect I was planning on using a 70mm oneThe larger you go the less bottom end power you get due to gas velocity, but obviously you have to make a compromise if your going for power. 70mm is good for 500bhp so you can sacrifice a bit of diameter if need be. Quote Link to post Share on other sites
grum-glanza Posted February 25, 2014 Author Share Posted February 25, 2014 (edited) Rob sr: The car is running a fully forged 5e with a gtx 2863r turbo and a full standalone megasquirt ecu and I have a wepr intake manifold Edited February 25, 2014 by grum-glanza Quote Link to post Share on other sites
RobSR Posted February 25, 2014 Share Posted February 25, 2014 Ah cool, not a lousy spec then. Any headwork atal? Quote Link to post Share on other sites
grum-glanza Posted February 26, 2014 Author Share Posted February 26, 2014 not really as far as I know there is a three angle cut on the valves does headwork make much of a difference? Quote Link to post Share on other sites
AdamB Posted February 26, 2014 Share Posted February 26, 2014 not really as far as I know there is a three angle cut on the valves does headwork make much of a difference? Depends what headwork your after and how deep your pockets are lol. Most of the time pissing about with the cylinder head makes it worse than what the stock item was. Quote Link to post Share on other sites
RobSR Posted February 26, 2014 Share Posted February 26, 2014 The head is where all the power is made. But like adam said, if its not done properly you can make things worse. Quote Link to post Share on other sites
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