Chris Wilson Posted February 23, 2009 Share Posted February 23, 2009 In light of recent talk about multiple TB conversions here are some bargain 45mm throttle bodies to base a conversion on. Be assured that without a sophisticated mappable ECU you won't get far, as multi TB's on boosted engines can be a bear to map. The response will be a lot better though. http://www.racecarsdirect.com/listing/23069/45_mm_jenvey_SF_throttle_bodies.html Quote Link to comment Share on other sites More sharing options...
jevansio Posted February 23, 2009 Share Posted February 23, 2009 Is the reason they are more responsive that when they open the air flow is straight into the cylinder where as with a single throttle the entire plenum has to be filled 1st? Is that why big inlets like the Greddy are a little bit trickier to get the throttle tip in working sweetly when mapping? Quote Link to comment Share on other sites More sharing options...
paul mac Posted February 24, 2009 Share Posted February 24, 2009 In light of recent talk about multiple TB conversions here are some bargain 45mm throttle bodies to base a conversion on. Be assured that without a sophisticated mappable ECU you won't get far, as multi TB's on boosted engines can be a bear to map. The response will be a lot better though. http://www.racecarsdirect.com/listing/23069/45_mm_jenvey_SF_throttle_bodies.html they look nice but the linkages look to wide to fit on the supra cylinder spacings unless you made an adaptor piece to space them out, the other problem i can see is the injector angle looks wrong as the supra head is virtually a side draught these look more suited to a down draught setup, nothing insurmountable though, not quite as bargain bucket as my M3 ones though Quote Link to comment Share on other sites More sharing options...
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