Slo_crx1

I know the releative basics apply to any honda motor, b16, b18, etc. But how does one make power out of a b16 when you're limited to the work you can do to it? Basicly this is the scenario. One of my friend's has a del-sol vtec he wants to run ustcc, and with both of us having b16's currently, we're exploring how we can stretch the power limits of this motor with limited mods being performed as per ustcc rules. Basicly it breaks down like this...you cannot increase the displacement except by an overbore as required for rebuild purposes, you can do headwork but you're not allowed to run aftermarket cam profiles and such, you must retain stock intake manifold but you are allowed an intake and header and exhaust. You can change your compression though and you can run aftermarket ecu management like Crome or BRE. Pretty much it looks like p30's, a shave job, and some serious port work are about the only thing that'll help pump out some more ponies, anybody else have any insights to perhaps be able to coax 170hp out of one of these to be able to keep up with the competition?

joebowlr21

run second gen b16a cams....more agressive then 1st gens but not wild like type R's.....and they are stock components for ur b16a i guess u could say.....a mean flowbench head port an polish an 3 angle valve job would be up next.....can u port out the stock intake mani an TB? i mean other then that look at lightening a few things up.Like maybe go with a Civic R crank pulley and a lighter crank if it's allowed.

Classes like that really want everyone to be at equal levels so it boils down to driver and car setup...those classes are fun to run in...i would look at suspension more then worry to much about engine work...

Guy-Fast

itr cams

CIVIC.93

ctr intake cam

JDMFantasy2K

the 2nd get cams are barely any different from USDM cams

ITR cams if they'll let you swing it, if not then in theory the 2nd gen cams do have the largest lift and duration aside from the r cams i believe. Will they let you knife edge the crank? How about you throw another set of inner valve springs on the exhaust side so all of them are double wound.

oh wait i got the answer... Turbonator

Slo_crx1

Trust me...suspension is not an issue. The car is gutted and caged right now, not sure of exact weight but it's not bad. Even with the current 100% stock b16 it'll run under 38 seconds for a 1/2 mile course.
As far as cam options, I'm really not sure if we could get away with itr/ctr cams. Gsr cams maybe, but it'll definately suck if they decide to huff the motor. You're allowed port work on the intake and tb as well, so it's definately worth looking into.

Guy-Fast

imo you of tons of options


can you run an aftermarket throttle body or only re bore the factory unit

Slo_crx1

I do believe you can run an aftermarket tb, although most guys seem to go with an overbore of the stock unit and port-match the intake plenum.

joebowlr21

that would prolly be best bet.....overbore ur stock units and go with some nice second gen cams....if they check ur motor they will get stock numbers off those cams compared to say if u throw gsr or itr cams in....People swore up an down that i had some aftermarket cams in my second gen b16'd crx because i was cleaning up other 1st gen b16'd crx's by a car or two.

W O T

Yank that head off and mill .040" off of it, itr cams, 3 angle valve job, upgraded valve train, rev that ****** out to 10000rpm to make 105ft/lb's of torque

Id bet your looking for lower end power though