Big Mark Posted July 22, 2015 Author Share Posted July 22, 2015 In that case I'll need to get a Syvecs as want Greddy style manifold. Quote Link to comment Share on other sites More sharing options...
Mk4Gaz Posted July 22, 2015 Share Posted July 22, 2015 Don't quote me on it, but I'm sure it's correct. If it is the case, you could keep the stock throttle body with an adaptor plate Quote Link to comment Share on other sites More sharing options...
Big Mark Posted July 22, 2015 Author Share Posted July 22, 2015 Still early day, so just gathering info and opinions. I was under the impression that to get the most out of a greddy style manifold it was better to use a 90mm throttle body such as the Q45? Though I did see a guy in america use a 90mm drive by wire LS3 throttle body, looked like a neat install too. http://www.mkivsupra.net/vbb/showthread.php?324819-Drive-by-Wire Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 23, 2015 Share Posted July 23, 2015 Biggish cams, high volume plenum and a big throttle body are not good soul mates for an auto box. I would listen to Nic and go for a small Garrett turbo, too. But personally I think 600 BHP is going to be disappointingly unreliable with an auto box. Quote Link to comment Share on other sites More sharing options...
Big Mark Posted July 23, 2015 Author Share Posted July 23, 2015 Thanks Chris but I'd rather get the engine right, with a spec that ticks my boxes and deal with the transmission when required. I've already factored in the need for an upgraded autobox, probably from SRD. As for Turbo I'm open to as much advice as possible about which to go for. I merely mentioned the PT6062 GEN 2 as a lot of people rate it's bigger brothers the 6266 and 6466, so figure as the newest and smallest GEN 2 turbo from PT it'd be the right size for my goals. Quote Link to comment Share on other sites More sharing options...
Big Mark Posted July 24, 2015 Author Share Posted July 24, 2015 Jekyl made 385hp with OEM 330cc injectors. Load's people people these days making 1hp per cc. 680cc injectors on stock pressure 40 psi for 600hp is 88% duty cycle if you go 1hp - 1cc. with an extra 2psi fuel pressure his new injectors are rated safely at 700/720cc. That's then at 85.71%. So if between your advice of 80-85% he isn't that far off when you calculate it out. Found this link today regarding injector sizing... http://www.supraforums.com/forum/showthread.php?564330-Injector-sizing-guide Quote Link to comment Share on other sites More sharing options...
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