Finally got the car professionally tuned. The numbers aren't anywhere what I had anticipated for. The tuner did say my stock LS b-pipe/muffler and stock air box is too restrictive. My injectors were maxed out at 100% duty cycle by 7800rpm so we didn't push it any further. I believe there maybe be something else not right with my setup as far as the camshafts being degreed in properly and timing. maybe someone can help me out here.....

Specs on the build...
https://honda-tech.com/zerothread?id=2274009

video...

 

Something is not right here. I would do a compression test and go from there. You should be making roughly 180-200 especially on a dynapack Was it tuned at all cause you have a nice dip in that curve?

 

dude i'm sorry somethings wrong thats some weak *** numbers lol

And lemme get this straight , your tuner tuned your injectors to 100% Duty cycle?? ..WOWWWWWWWWWWWWWWWW

 

What was the VTEC crossover at? Looks like you only have 1/2 a graph... Seems like the engine wanted to keep going.

 

Check your fuel pressure and system. With ~240cc/min injectors @ 42psi, you should be making 198bhp at 100% duty cycle.

 

That was a complete tune...tuner did everything he could to rid that dip...vtec was set to 6k.....yeah i'm pretty upset with these numbers. I will def do a compression test soon and redo the camshaft degree.

the tuner did not tune it to 100% dutyon purpose but showed where it spiked to and backed off and said 80% is where he would like it to be and that 370 or 440cc injectors are needed.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92TypeR &raquo;</TD></TR><TR><TD CLASS="quote">Check your fuel pressure and system. With ~240cc/min injectors @ 42psi, you should be making 198bhp at 100% duty cycle.</TD></TR></TABLE>

yeah the fact that i was running prelude 290cc with a walbro 255 hp pump kinda surprised me when he told me they were maxed out

 

Check your fuel pressure at idle with vacuum removed from the regulator.

 

What size exhaust is on there? Get rid of your stock air box and get a BPi velocity stack. Also your power is still cimbing at your current redline, keep on going son.

You vtec is also way too damn low.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BMo Tuning &raquo;</TD></TR><TR><TD CLASS="quote">What size exhaust is on there? Get rid of your stock air box and get a BPi velocity stack. Also your power is still cimbing at your current redline, keep on going son.

You vtec is also way too damn low. </TD></TR></TABLE>

header are the hytech replica tri-y you see everywhere going to a test pipe tappers to a stock LS bpipe and muffler i think 2in diameter

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 00b18b &raquo;</TD></TR><TR><TD CLASS="quote">

header are the hytech replica tri-y you see everywhere going to a test pipe tappers to a stock LS bpipe and muffler i think 2in diameter</TD></TR></TABLE>

holy mother of jesus cow crap.

Go back to the dyno without the exhaust on.

Or just buy a 3"

oh and take it atleast 8500

 

did you really do all that and then run a stock bpipe and muffler?

 

Ran out of funds towards the end of the build...focused majority of it on just the engine....a ws2 will be in order sometime hopefully soon. Its not the biggest but i like it quiet. Regardless of the exhaust size i don't think its holding back the majority of the 30-40hp I'm missing here.

Update : Did a compression test, and got 260 on all four cylinders

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 00b18b &raquo;</TD></TR><TR><TD CLASS="quote">Ran out of funds towards the end of the build...focused majority of it on just the engine....a ws2 will be in order sometime hopefully soon. Its not the biggest but i like it quiet. Regardless of the exhaust size i don't think its holding back the majority of the 30-40hp I'm missing here.

Update : Did a compression test, and got 260 on all four cylinders</TD></TR></TABLE>

Regardless of what you think, it is holding back a crap load of power.

and ew to a ws2??

I have a damn apexi gt spec I'll sell ya.

 

i just tuned my lsv

https://honda-tech.com/zerothread?id=2377216

and i thought mine were low

 

bpipe and intake are really whats killing you.. as well as the 290 injectors.. I dont understand why you went with the 290s to begin with but you need it to flow better in and out, and as long as you have it balanced and dont have a oiling issue.. 8500 + rpms baby!! from the dyno sheet it looks like the motor was still making power when you let off, just like that other guy said lol it looks like your missing half a dyno sheet. possibly look into a cam thats more for mid range if you dont want to rev it that high?

 

WS2

3" Kteller FTW

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM Panda &raquo;</TD></TR><TR><TD CLASS="quote">bpipe and intake are really whats killing you.. as well as the 290 injectors.. I dont understand why you went with the 290s to begin with but you need it to flow better in and out, and as long as you have it balanced and dont have a oiling issue.. 8500 + rpms baby!! from the dyno sheet it looks like the motor was still making power when you let off, just like that other guy said lol it looks like your missing half a dyno sheet. possibly look into a cam thats more for mid range if you dont want to rev it that high?</TD></TR></TABLE>

yes i understand the stock exhaust and airbox(modified like the old comptech) is hurting performance which will be addressed as soon as funds roll in. as far as the injectors, i thought they would be enough especially with the walbro 255 hp fuel pump. Itr's run 240cc just fine i think i should be okay. If you didn't read, the injectors were maxed out at 7900 so we had to back off and call it a day.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mar778c &raquo;</TD></TR><TR><TD CLASS="quote">WS2

3" Kteller FTW = exhaust noise tickets </TD></TR></TABLE>

corrected for you

 

odd, my 240s werent even maxed out at 200whp.

 

ah shame on me for not reading the full pust D:!

 

air and exhaust restriction = massive power kill!!! open that **** up kiddd... let that bad boy breathe hes got asthma right now...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 00b20vtecoupe &raquo;</TD></TR><TR><TD CLASS="quote">air and exhaust restriction = massive power kill!!! open that **** up kiddd... let that bad boy breathe hes got asthma right now... </TD></TR></TABLE>
WDF LMAO

 

did the engine start leaning out or were you just referring to hondata's duty?

 

we were goin off of hondata's duty cycle and tried to richen it up but it wouldnt.