vtec engagment point
on my h22 swap i've installed i/h/e,cam gears, pulleys,,,and i was planning on changing my vtec engagment point but i've heard that it wouldn't be such a great idea...would it be best if i don't mess with it?
yep yep...
i changed my vtec crossover on my vafc I to l->H is 4700 and HI->lo is 4600..
works great and i run 14.5's at the strip with basic i/h/e and vafc I untuned.
Just for the record, when untuned, you are not to go beyond 300rpms +/- from stock which is 4900, ur tach may say otherwise but it really 4900. soo, just dont go over 5200 or under 4600
i know my typing sucks but i think you should get the point..lol..16hr shift gets tough.lol
i changed my vtec crossover on my vafc I to l->H is 4700 and HI->lo is 4600..
works great and i run 14.5's at the strip with basic i/h/e and vafc I untuned.
Just for the record, when untuned, you are not to go beyond 300rpms +/- from stock which is 4900, ur tach may say otherwise but it really 4900. soo, just dont go over 5200 or under 4600
i know my typing sucks but i think you should get the point..lol..16hr shift gets tough.lol
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sleepyH22 »</TD></TR><TR><TD CLASS="quote">yep yep...
i changed my vtec crossover on my vafc I to l->H is 4700 and HI->lo is 4600..
works great and i run 14.5's at the strip with basic i/h/e and vafc I untuned.
Just for the record, when untuned, you are not to go beyond 300rpms +/- from stock which is 4900, ur tach may say otherwise but it really 4900. soo, just dont go over 5200 or under 4600
i know my typing sucks but i think you should get the point..lol..16hr shift gets tough.lol</TD></TR></TABLE>
I remember having a similar set-up to the OP's and setting my crossover to 5200 RPM. It yielded decent power up top. I also remember having it at 4600, 4700 and 4800 and it killed the top end. In the end, after a dyno session, I set it back to stock.
i changed my vtec crossover on my vafc I to l->H is 4700 and HI->lo is 4600..
works great and i run 14.5's at the strip with basic i/h/e and vafc I untuned.
Just for the record, when untuned, you are not to go beyond 300rpms +/- from stock which is 4900, ur tach may say otherwise but it really 4900. soo, just dont go over 5200 or under 4600
i know my typing sucks but i think you should get the point..lol..16hr shift gets tough.lol</TD></TR></TABLE>I remember having a similar set-up to the OP's and setting my crossover to 5200 RPM. It yielded decent power up top. I also remember having it at 4600, 4700 and 4800 and it killed the top end. In the end, after a dyno session, I set it back to stock.
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When you get on a dyno, you need to lower your engagement point to where your torque starts dropping off. Instead of having the dip that some have after minor bolt ons, you'll have a smooth curve where the crossover point is. It won't feel as strong because you won't feel the punch of the vtec, but you will be noticeably faster. When I change mine, I gained 11whp and 25wtq at 5000rpm, but it felt slower because I didn't have that vtec kick. You want that smooth engagement.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1GPlusSH »</TD></TR><TR><TD CLASS="quote">When you get on a dyno, you need to lower your engagement point to where your torque starts dropping off. Instead of having the dip that some have after minor bolt ons, you'll have a smooth curve where the crossover point is. It won't feel as strong because you won't feel the punch of the vtec, but you will be noticeably faster. When I change mine, I gained 11whp and 25wtq at 5000rpm, but it felt slower because I didn't have that vtec kick. You want that smooth engagement.</TD></TR></TABLE>
I agree 100%. I have seen some dynos where you cant even see where vtec kicks in on the graph its blended so well
I agree 100%. I have seen some dynos where you cant even see where vtec kicks in on the graph its blended so well
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