wheres the pull

sup,sup.check it out i have a 91 teg ls i put a jdm b16a 1st gen sir motor and tranny in plus a pr3 obdo ecu. since day one the car ran great.but my redline was at 7500 rpm.regardless of that the vtec worked and kicked in at 4500 but there isnt a whole lot of pull. i mean theres a very noticeable change in my exaust tone and i can feel a little pull but thats it. now for the stuff. i put a short ram intake aem,a msd cap and externel blaster coil,full greddy exaust with header and high flow cat, and i also put a skunk2 intake manifold on with a b&m fuel pressure reg,a aem fuel rail and a fuel pressure gage. also chipped the computer with a spoon chip.after all said and done i still feel no difference in power,what the hell the car runs smooth and idles fine no check engine lights but wheres the power? my car feels no different,but now after the chip install mt redline is a 8700 but i dont go there.i have tried different ecu's and still nothing the same.does any1 have any clue as to whats goin on here? i mean the car is good but shouldt it be alittle faster than it is. also can my vtec be not opening all the way or something is that possible,can my cams be bad or something im lost for words. very dissapointed xsi.any ideas would be of help thanks.

You put a b16a in a slightly heavier body than the JDM civics I believe. Low torque, low kick as it is.

I believe your VTEC engagement is set a bit early.

I agree with Pepsihatman. The a 1.6 litter engine in a heavier car, its going to be hard to get that thing moving.

4,500 is not set too low for vtec engagement. On a b18c1 engine, for example, the vtec engagement point is 4,400, with a redline of 8,100. So, 4,500 might actually be high, but higher vtec engagement (correct me if I'm wrong) will make it kick harder... So I still argue my point that the b16 is a more toqueless engine, put in a heavier car, so you are not going to feel it as much.

You may want to check your fuel pressure. It kinda seems like something with that, but don't take that as law from me... I'm just brainstorming.

p.s- what kinda times are you running? (1/4, 0-60) It may just not kick, but it can still be fast, believe me. My friend has an rx-7 (rotary engine) it doesn't feel like you are accelerating, until you look at the speedometer, and it's going past 80mph.....

well to be honest my neighbor has a 92 or 93 gsr 1.7 and i beat him also another friend has a 98 gsr and i beat him but there pull i so strong that i just automatticaly thought that they would kill me but i was worng. i dont know my times no strip here.i just seems to be not as tourky u know? also dont they have a duel stage vtec cause the 93 gsr hits lightly at 4600 then hard at 6000 but the 98 gsr just hits at 6000 no duel stage.also i have a rstype vtec controller but when i hook it up in my car it throws a check engine light whats this all about? the instructions said to hook up the green wire to tach,the orange wire connect to side to computer and the yellow to ELECTROMAGNECTIC VALUE what the hell is that ? so i just cut the vtec seloinoid wire yellow went the selonoid side and orange went to the computer side and tach went to the tach does this sound worng cause my check engine light went on right away and i belive through code 21 or 22 vtec something well any help would be great l8ter

i think ur being a little greedy... beating gsr's with a "91" is not bad. maybe u should buy a ferrari i hear they pull pretty hard

I honestly don't know anything about the vtec controller. But the 98 GSR (I have one) has a vtec engagement at 4,400 where the oil pressure activates the third lobe, then at about 5,800 secondaries open up and that is the most noticible difference.

Good job on the GSRs. I bet it was a good race.

well it was but i pulled away in third. anyway very funny dork! well i also noticed that my air/fuel meter is alittle weird i have the phantom(auto meter).well it has a number of led lights some are red and some are yellow and some are green.for lean, stoich, and rich. before i put the skunk2 manifold on my air/fuel meter worked good and while i was drivin or idling ,whatever the led lights where on almost one at a time u know it would look like it was sliding into different areas of ratio.but now that i put on the manifold my meter seems to be all over the place like rich and stoich at the same time. kinda weird at some points im rich lean and stoich all at once .weird

That does sound weird. Also sounds like my friend's turbo'd saab. His will usually just sweep back and forth at idle. when he hits it though, it shoots right to somewhat lean.

A b16a is not too weak to pull a '91 teg. Look at the '92-'93 XSi, it came with a b16a stock. Now if it was a slightly newer body style like the '94+, then it would be a problem.

well anyway can vtec open not all the way. or once its open,its open?i was thinkin bout cleaning my vtec seloind and plunger to see if thats a problem but dont know if i wastin time.

vtec either opens or it doesn't, there's no partial open. But also, the b16a doesn't have nearly as much torque as the LS or GS-R engines do, so it's not going to pull as hard from a start if that's part of your question. And your IM could be doing more harm than good. I've got a book called "How to Build Honda Horsepower" where it shows aftermarket IM's actually making the engine lose power throughout the powerband but gaining on top end power (all on dyno graphs). So I'd think that this could possibly be part of your problem. This is just from a book though, as I have not seen it on a dyno myself. But I'd say try cleaning the solenoid, you never know and it won't hurt to try.

ok there is some misguided info floating around this thread.

The b18c gs-r engine does not engage vtec at 4,400 it engages around 5,900 just like most vtec engines. what you feel at 4,400 is the dual runner intake design allowing for a little more air flow at that rpm range and then the big kick you feel later on is the vtec engagement.

The 93 gs-r does not have the dual runner intake design of the newer gs-r motors. The B17a engine actually has the same head as a B16 motor and B18c5 type R motor. therefore no there is no slight kick at 4,400 in them only 1 kick at 5,900



Oh and I agree with civicspoon put the B16 intake manifold back on, almost all aftermarket IM don't make power until well after 8,000 rpm. B16 IM are one of the best out there, you will actually lose power with the aftermarket one unless your car is able to rev to about 9,500.

hey guys just curious how many o2 sensors are in a 89-91 sir motor [jdm b16a],just cause i wonder if im onto something

hey guys just curious how many o2 sensors are in a 89-91 sir motor [jdm b16a],just cause i wonder if im onto something

There are no O2 sensors "in" the 89-91 SiR motor, however there should only be one O2 sensor on the 89-91 civic SiR. ;)

ok well then why is it that all the ecu printouts i have ,have pins for 2nd o2 sensor for a obdo[pr3]

ok well then why is it that all the ecu printouts i have ,have pins for 2nd o2 sensor for a obdo[pr3]

Hmm don't know post up the pinouts so we can take a look at them.

Hmm don't know post up the pinouts so we can take a look at them.


well actually i got the pinouts from one of ur links in a earlyer thred. and i dont know how to do that

well actually i got the pinouts from one of ur links in a earlyer thred. and i dont know how to do that

Post the link and I will look at it. I linked to a pinout? Are you sure?