turboef90

alright i just got done putting gsr cams in my b16a and a crankcase breather aka endyne. would putting the cams in make it run richer?? i wouldnt think so due to the extra air coming in.mean the car was running litt rich before hand but now its running liuke 10.0 down the highway.thinking of just putting the stock cams back in see what happens

i-VTEC_do_you

the specs on obd2 gsr cams are the same as obd1-2 b16a so your problem must be smoewhere els

Bseriescivic5

You sure about that? Im 99% sure you are wrong. GSR cams are slightly more aggressive than b16a. I dont know the exact specs, but Jeff Evans did a comparison a while back, im sure its around here somewhere. I think the GSR cams netted about 20whp more on a boosted setup.

blackeg

ditto. i think the gsr cams are the best bang for the buck upgrade in a boosted b16 especially an older one.

a few years ago i had to swap in some b16 cams instead of the gsrs i had in there and my afr's richened up by about half a point on the same tune, which i believe is a direct result of lost VE due to crappier cams.


unless you really messed up the timing when doing the install, i also agree the problem lies elsewhere. if anything they should make you run a lil leaner in boost with no tune corrections rather than pig rich

i-VTEC_do_you

http://asian_e.tripod.com/Honda_Engine_Specs.htm

HiProfile

Helms lists the non-v lobes overall height to be different between b16a2 and b18c1, but vtec lobes virtually the same. Bottom line they are not the same, but not by much.

The b16 actually appears to have larger non-v lobes, and that would make sense with the oem vtec crossover points of ~5500 b16 and ~4500 gsr. When put in the same head, cruising with less lift at moderate rpm's probably will decrease airflow. That would mean less air for the same fuel, or running rich.