knight Posted March 9, 2011 Share Posted March 9, 2011 Right chaps me and a few people have been discussing about VTEC Controlers & changing VTEC points! So now who's got one? what make is it? what have you found to be the best or list the ones you have done and what they were like!This is from my project post earlyer,,,Right today i have read the bible about the apexi neo unit a have installed in my vti, so now i know exacly what i'm doing lol! in theory! so now will be changing my vtec points to see if i can get a better crossover points (& louder lol) Anyone who has changed theres please comment on it! so i can get some good info! My VTEC Controler,,Btw,, On this one i can change high and low cam vtec points anyone else have the same apexi as me??? Link to comment Share on other sites More sharing options...
johngreen537 Posted March 9, 2011 Share Posted March 9, 2011 You can on all VAFC's too mate, changing the point vtec comes in and fades out again Link to comment Share on other sites More sharing options...
vtivtec170 Posted March 9, 2011 Share Posted March 9, 2011 forgive the noob questions:you say when the high and low cam, i thought it was either on or off vtec?does it mean you can change when it goes on vtec and when it comes off: say at 8.5k or adjust when it comes off when de-cellerating? Link to comment Share on other sites More sharing options...
mc2_vti Posted March 9, 2011 Share Posted March 9, 2011 Hi Knight,I've got Apexi Neo as you do, I did try altering the vtec point but tbh you'd better tune it by dyno run. As the Neo only alters the vtec point and though you can adjust the air/fuel ratio to compensate the base map, the ignition timing may probably wrong.I'm thinking to get someone tuned it properly on dyno. Will update you with my results later.Also, here is my current A/F map which won't suitable for other's cars but just for your reference.I play with the setting only by feeling so it won't bring the full potential until I get it tuned.Hi Thr = 50%Lo Thr = 15%HVT Correction1600 -13000 -13400 -13800 -24200 -24600 -15000 -35400 -35800 -26200 -36600 -27000 -27400 -37800 -1 Link to comment Share on other sites More sharing options...
knight Posted March 9, 2011 Author Share Posted March 9, 2011 Cool mate thanks for the info! nice to see someone with the same unit i ave! Link to comment Share on other sites More sharing options...
mc2_vti Posted March 10, 2011 Share Posted March 10, 2011 yea I feel the same, perhaps we can share some thoughts during the meet!But I need to work that day at 3pm, so if you want we can meet there bit earlier so we can try something on our blings blings haha. Link to comment Share on other sites More sharing options...
knight Posted March 10, 2011 Author Share Posted March 10, 2011 yea I feel the same, perhaps we can share some thoughts during the meet!But I need to work that day at 3pm, so if you want we can meet there bit earlier so we can try something on our blings blings haha.Sounds like a good idea mate! you can have a play with my apexi at the meet and we will try and get a good setup 1"£££$££"!! 1"£££$££"!! Link to comment Share on other sites More sharing options...
johngreen537 Posted March 10, 2011 Share Posted March 10, 2011 Gotta be careful with them though gents...Mess up the AFR and you could get major problems!Dyno is the only real way to use them properly! Link to comment Share on other sites More sharing options...
mc2_vti Posted March 10, 2011 Share Posted March 10, 2011 Yea I know so I'm actually planning to go for a dyno tune in Plymouth.What I think is, I need to change the vtec point to the power flat spot intersections between lo/high cam, and tune the afr base on the dyno graph to give maximum performance output.But adjust based on my feeling, i feel the vtec point is best left unchanged and run a bit lean throughout the rev range does give some more glunts and "save" a bit of fuel when driven harder haha. Link to comment Share on other sites More sharing options...
knight Posted March 10, 2011 Author Share Posted March 10, 2011 Yea I know so I'm actually planning to go for a dyno tune in Plymouth.What I think is, I need to change the vtec point to the power flat spot intersections between lo/high cam, and tune the afr base on the dyno graph to give maximum performance output.But adjust based on my feeling, i feel the vtec point is best left unchanged and run a bit lean throughout the rev range does give some more glunts and "save" a bit of fuel when driven harder haha.Really? i'm going to raise it! don't know too what but,,, i've heard around 4800rpm-5200rpm is the best range to do to,,, Link to comment Share on other sites More sharing options...
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