B18C5-EH2

On a B18C1 with stock ECU and intake manifold VTEC engages at 4500rpm and the secondary butterflies open up between 5800-6000rpm depensing on throttle position.

You should hear that "pop" noise at 4500rpm followed by a slightly throatier resonance once the secondaries open up at 5800-6000rpm.

See maybe this topic can be salvaged with some actual tech info after all.

vLad11591

i have a jdmb16a and i just got my ecu chipped... p28 running p30 basemap tuned on crome pro... I have vtec set to 4800.. and i feel like im losing top end power but midrange i gained... did i set vtec to low?.. i feel like it takes forever to get to 100 now..

jdm_90crx_sir

i have a b16a in my crx and its loude and pulls hard i had a 94 prelude with a jdm h22a and my b16a in the crx is louder and pulls harder then my h22a

vLad11591

power to weight ratio.. 94 prelude is heavy as hell.. crx with a b16 is light..

94_DC

Yes I would set it higher if I were you, try 5300.

vLad11591

lol its not that easy to change.. ima be stuck at 4800 for awhile till i get enough money to get a tune...

94_DC

That sucks, my shop is a price of 80 for the chip. Anything simple like that is free to change.

EKSiR99

4800 is way to low.... hehehe i tried that with afc neo on my b16 sucks big time to power at all

ufakeit

that sounds like when my vtec hits but it pulls pretty good and "cracks" hard. but its hard to tell cause i build full boost about the same time. :/ im only a single cam tho...

vLad11591

so whats a good place to set it at.. without having to go on a dyno tune?
it used to seem like it waas hitting at like 5800/6000 i figured 4800 was too low....

Targa250R

The safest point to set the engagement is 5600 RPM for a USDM B16A and 5800 for a 2nd-generation JDM B16A. It's not ideal, but it's better than just guessing without a dyno plot.

b18egchuy

...I always read about and heard about havin loud vtak was in the head work (cams, porting, intake mani, headers, intake, and even the sought after misterious "big" vtak solenoid) I myself have had a gsr, poor mans type r, and now a fully built b16b, and out of all these swaps I gta say the b16b has hit and pulled the hardest,

On the full gsr I just had ctr tranny, and dc headers only

On the poormans I had b18c1 block ctr pistons, ctr head (complete) ctr headers, pwjdm carbon intake

On the b16b I have benson sleeves, jun stroker (2.0) p&p 5angle ctr head jun spec 3 cams toda valvetrain, toda itbs, rmf headers, bc spec 2 exhaust. Quaife ctr tranny

And for all u that are lookin for the "big" vtak solenoid cuz its louder and faster engaging, ITS TRUE!!! I swapped mine to my friends b16a2 eg hatch and it made a big difference soundwise and trackwise...

(Loud)VTAK FTMFW!!! Lol

Targa250R

It's a freaking spool valve. It has nothing to do with anything.

rick_rabies

just get a cheap laptop and downlaod crome
plug it in and go to GET on the tool bar and get your map and options and change vtec..wala. your afr will be a tad off right before vtec though

kulo

i had open header on gsr swapped ek for a week
chipped ecu and s2 im
vtec was real loud

got my hks hi power back on now
u can bearly hear vtec

maybe get some r cams

vLad11591

thank you... im knew to the tuning.. its tuned on crome pro.. so i have a laptop.. what port do i plug into the laptop

rick_rabies

what port?
depends, do you have a data cable (usb) coming from a black box(ostrich)
or did you have a chip burned?
chips suk. buy a moates ostrich 2.0 $175 and you can put that into your socket and tune. and plug that right into your computer. go to moates.net and download the ostrich driver(free) youl neeed that for the laptop to recognize the usb to ecu

AndreClanc

Likely your comparing the American b16 medium buzz sound To what I think you had the b16 out of the integra xsi from Japan It had 10 more hp making 170crank the biggest difference was more aggressive cams.. I had an xsi b16 and eventually threw it on a b18 bottom end...that FlunKer Creeeeamed!!!! .....Or was that mE...