sup yall ive did some searching but im still unsure.
im about to chip my p28 ecu but im not sure what i should put the vtec to engage at. is 4700rpm to early for a gsr. or should i go with like 5200 or 5700 rpm with a 9200 redline. im thinking bout getting a mugen or skunk 2 chip. if any 1 can help me out it would be appreicated.
IM selling a p72 obd gsr ecu for 100 bucks
aol sn- civicrida3

 

Just keep the stock VTEC, which i think is 4500rpm/5400rpm (secondaires). Unless if the motor is built or your going turbo then get to a dyno and find the good spot to do it.

 

If you are using the stock manifold, you're fucked. Because there are secondaries in the GSR manifold...if you're chipping your P28 i'd get a skunk2 manifold and have vtec around 5700 RPM.

 

i have a gsr with a skunk2 manifold and i think vtec at 57-5800 is too long of a wait. thats just me though.

 

yah i still got the stock manifold. cause i just swapped i plan on getting a skunk2 mani but im kinda broke just wanna chip this p28 or buy a new 1..

 

would it be okay to use a stock gsr ecu with a skunk2 manifold?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicrida3 &raquo;</TD></TR><TR><TD CLASS="quote">what i should put the vtec to engage at</TD></TR></TABLE>
VTEC at 4400 RPM, short intake manifold runners at 5800 RPM.

If you have a Skunk2 manifold, try setting VTEC around 5500.

Remember, only a dyno can really tell you what the best settings are . . .

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondaeg8 &raquo;</TD></TR><TR><TD CLASS="quote">would it be okay to use a stock gsr ecu with a skunk2 manifold?</TD></TR></TABLE>

is it ok? yes.. but it's going to hurt performance and gas mileage.

your ecu is going to think you still have secondaries, only you dont... so you are not going to do any good with that set up..

 

cool...i have a skunk2 manifold on my gsr motor, but i'm using a chipped p28 kenji ecu.

 

did you check your oil?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BauleyCivic &raquo;</TD></TR><TR><TD CLASS="quote">If you are using the stock manifold, you're fucked. Because there are secondaries in the GSR manifold...if you're chipping your P28 i'd get a skunk2 manifold and have vtec around 5700 RPM.</TD></TR></TABLE>
Listen to the man and take his advice...

 

ok can some 1 break this down too me. what are secondaries.. sorry im still with d-series this is my 1st b-series ive done or had..
i just know i need a chipped p28 cause my car redlines too early ..

 

GSR's intake manifold is different than most hondas... It has two paths the air can take, the primary runners or the secondarys. At 5800 the AIB switches to the secondary runners (if you have wired it up and are using the stock ECU) I would definatly keep the stock ecu unless you have gotten a skunk2 manifold.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicrida3 &raquo;</TD></TR><TR><TD CLASS="quote">i just know i need a chipped p28 cause my car redlines too early .. </TD></TR></TABLE>
Please explain further.

You should really be using the P72.