nicknasty

b1a2 in my hatch w/ mugen ecu when vtec after 1st gear it boggs down feels faster before it hits vtec something isnt right any ideas........ive checked my oil and there is plenty.....

Henry HA

maybe because your running a b1a2

b Team

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C_DC2 &raquo;</TD></TR><TR><TD CLASS="quote">maybe because your running a b1a2</TD></TR></TABLE>

yeah when honda made that .1 liter engine they had a lot of problems with acceleration and speed for that matter, not so bad on the b1a

Daniel

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nicknasty &raquo;</TD></TR><TR><TD CLASS="quote">when vtec after 1st gear it boggs down feels faster before it hits vtec something isnt right </TD></TR></TABLE>

Whaaa? So after you redline it in 1st gear, the engine feels sluggish? If you don't redline it in 1st gear then it feels alright? Might help to explain your situation a little more <u>clearly</u> instead of all jumbled together. If could also be the mapping on your Mugen computer; maybe the fuel and ignition maps are for a higher redline and different fuel setup than what you have.

nicknasty

i guess if i want to know where i can find ******** at i'll post here again but where can i find some people who actually want to help and wont be smart asses about ****

nate_d

i guess if i want to know where i can find run-on sentence after run-on sentence i can always search for your posts. seriously though, we need more information before we can give you a quality reply. o yea, please start using punctuation before ever posting again. thank you!

tek_civic

i understood what he meant perfectly, but that might be due to the fact that im having the same problem. example, when im in 5th gear cruising on the highway at like 4300 rpms and i climb a little to 4400 rpms where vtec engages i can feel the car bog(slow) down and watch the speedo drop a little(keeping at same throttle whole time). i think my problem is that vtec is way to low(4400rpms on a b16a sirII) and im running a p72 ecu which i don't think helps.

nicknasty

im glad this is english 101........is that enough punctuation ***......neways yeh im running p72 ecu on the b16a2 motor but is converted over to obd1 harness and ecu.....same deal 4500rpms its bogging bad....then at about 5600 it picks up speed a little

white99gsr

why are you running a GSR ECU in a B16?? the ecu isnt made for that motor, it's probably looking for the IAB's.

thid92

ok,first of all what are your mods. Is there a reason for you to run a mugen chipped ECU? Many people think that by having vtec kick in earlier that they will gain more power. You said that around 5600rpm's the car starts to pick up speed, try to get a stock ECU for a B16a1 and you should be good to go.


Modified by thid92 at 10:10 AM 8/28/2003

BauleyCivic

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thid92 &raquo;</TD></TR><TR><TD CLASS="quote">ok,first of all hat are your mods. Is there a reason for you to run a mugen chipped ECU. Many ppl thinks that by having vtec kick in earlier, they will get more power. </TD></TR></TABLE>

92b16vx

Your vtec is set way to low, wrong ECU, and who knows what that chip is doing in there, as suggested before get the right ECU and try it.

ce

You need to set the VTEC crossover right..Don't think that by lowering it you'll gain power 'cause you won't..What to do:

Get on a dyno
Set VTEC at 9000 and make a run
Set VTEC at 3000 and make a run

From the two graphs you'll be able to select the optimum crossover..Remember that the area under the graph needs to be as big as possible..

Targa250R

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nicknasty &raquo;</TD></TR><TR><TD CLASS="quote">im glad this is english 101........is that enough punctuation ***......neways yeh im running p72 ecu on the b16a2 motor but is converted over to obd1 harness and ecu.....same deal 4500rpms its bogging bad....then at about 5600 it picks up speed a little</TD></TR></TABLE>
Want to know why? Because you're running a B18C1 ECU on a B16A2. The proper VTEC engagement point for a stock B16A2 is ~5500RPM, but the B18C1 engages its VTEC lobes at 4400RPM. Your engine is going into VTEC way too early, and is struggling to make power with the high-RPM cam lobes from 4400-5500RPM.

Get the correct ECU and problem solved. Or, change the settings on your ECU if possible.

976

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C_DC2 &raquo;</TD></TR><TR><TD CLASS="quote">maybe because your running a b1a2</TD></TR></TABLE>



My b16a will tear up apart B18C_DC2 - Why don't you get out of the civic forum a-hole...



What mods are done to your engine? Any head work? I would recommend resetting your ECU the proper way.

EDIT: Now that I think about it you're running a GSR ECU, p72. That is a no no, you do not have duel butterflies, your problem is your ECU.

BauleyCivic

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 976 &raquo;</TD></TR><TR><TD CLASS="quote">



My b16a will tear up apart B18C_DC2 - Why don't you get out of the civic forum a-hole...



</TD></TR></TABLE>



he said "b1a2" ********...dont get the joke do you?

Henry HA

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 976 &raquo;</TD></TR><TR><TD CLASS="quote">
My b16a will tear up apart B18C_DC2 - Why don't you get out of the civic forum a-hole...
</TD></TR></TABLE>
lol, get out of the civic forum?!Thats the stupidest thing ive ever heard...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BauleyCivic &raquo;</TD></TR><TR><TD CLASS="quote">
he said "b1a2" ********...dont get the joke do you?</TD></TR></TABLE>
thank you

The Destroyer

Easy ladies.

Filliam H. Muffman

me-yow

AMG

Hahaha......Some one needs to take a deep breath.....

Basically what it comes down to is that your ecu is telling your engine to engage at 4400 rpms when infact its not ready to untill 5500 rpms and its struggling to do so.

Important tip* Like someone stated before, making your vtec engage at a lower rpm wont essentially make more power! Do a little research before you spend money on something like that. Think about it this way, the ecu is the brain of your engine, Dont **** With It Unless You Know What Your Doing

Ohh and to many of you who dont take this seriously, the ecu should be the last upgrade you do. (along with a tune)

SloazzEKhatch

everyone just needs to calm down, and relax. your car is probably bogginf becasue of the VTEC engagement. if you have it set too low it won't help power but rather rob it from the motor. it is like shooting yourself in the foot

SloazzEKhatch

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BauleyCivic &raquo;</TD></TR><TR><TD CLASS="quote">

</TD></TR></TABLE>

LMAO!!

PriMaTe

like everyone else is telling you, you can't play with vtec without any mods and dyno tuning. The low rpm cam profile is good for low rpm, the high rpm one is good for higher rpm. If you switch to the high rpm one at low rpms, you will lose power. Like other posters told you honda engineers put the switchover point at a certain spot for each engine for a reason, leave it be unless you do some big stuff with the engine that requires changing engagement for optimum performance.

JDMs1eeper

switch to a chipped p28 or the right B16 ECU...

And also, find out where your xover should be on a dyno like stated above and use that figure. good luck

EsQueue

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BauleyCivic &raquo;</TD></TR><TR><TD CLASS="quote">



he said "b1a2" ********...dont get the joke do you?</TD></TR></TABLE>