my car got dyno tunned and pulled some low #'s i knew it would be low but didnt expect 140..

b16a2
rmfnarrow 421 header
skunk2 stage 2 camshafts
skunk2 intake manifold
aem intake w bypass
fidanza flywheel
p28ecu
apexi n1 full cat back
omni test pipe

we think its the cams, any one know if this would be the problem? what cams do yall recomend? would changing to a act 6puck clutch make a difference?

 

clutch feel ok?

 

yea it does i just kinda want some one to convince me to get a 300 dollar clutch so i wont feel stupid. but ive heard that having a really lighten flywheel makes me loose powere is this true. and i heard that stage 2 camshafts made me loose power since i still have my stock compression. and s2s2's make power only if my car goes up there to the 9krpm'z but i cant with a stock bottom b16 block

 

That seems about right.

The number of 160hp is at the flywheel, not the wheels.

Your typical B16 due to its low displacement puts out a rather low torque rating - this has been guided by the common complaint of it feeling like a D16 until you get into VTEC.

The D16Z6 puts out about 90-105whp as it's rated at 125-130hp at the flywheel.

Like so, the B16 puts out around 155-160 at the flywheel which translates to about 120whp stock. This is why that complaint happens...with all the stuff you put on it gains you the extra 20hp you have there.

This would be a good example why making an NA 4 cylinder put out rediculous whp numbers is so hard.

The catback isn't really helping you, your exhaust doesn't require it..same with the test pipe, the stock is wide enough. The p28 ECU wont' help you unless it's chipped and tuned. The flywheel will help ur numbers a bit as if its a lightweight flywheel as it's less rotational mass. This though, you have to figure out what a B16 flywheel weighs compared to the one you just put on. Doubt there was much difference based on your numbers. AEM intake helps in the higher end and that header will help you around the lower VTEC area. As for the cams they don't help a whole lot unless you really got a blast setup but they're there so they do help a bit. I've heard of skunk2 IM's actually restricting air flow, though I don't know the fully story on that so I'm not going to say that's the problem.

Based on what you have 140 is about right...I mean it is a little low but it's not like it's rock bottom, just remember that it's only 1.6L therefore has a very low tq. rating. I'd at least expect high 140's to 150 though. If you ask me from what it looks like you have compared to your numbers I'd say you can use a better tune.

That p28 ECU, is that a stock ECU, or is it chipped? If it's chipped, is it running a B16a2 basemap program or a B16a2 basemap program tweaked when on the dyno for maximum performance?

 

Show me your dyno chart and air/fuel.

 

cams, good tuning, and higher compression will get that puppy pulling hard. To make n/a power in hondas its all about cams, compression, and flow.

Wait my bad let me edit what i said you already have good cams. Higher compression and tuning will get alot more power. Your setup is good. Tune it and maybe some ctr pistons or something too get the full effect outa those cams.

 

its a p28 chipped dyno tunned skunk2 stage 2 cams. i have came to the conclusion that i am going to try my stock cams. do you think it will give me better numbers

 

Since U runnin stage 2 did u upgarde the valves...springs..etc...is tha p28 tuned for all tha parts not just the cams?....my boy's em1 dynoed around 140whp stock everything except aem cai and dc 4-1 header...so something is not right

 

thank you... i know thats what i taught a stock si should have like 135. i was really expecting 160 not 140. yea i have vavlsprings and retainers and all that stuff. i kinda just left my car at a shop and they dyno tunned it i dont really know what went on.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jugodmyko &raquo;</TD></TR><TR><TD CLASS="quote">its a p28 chipped dyno tunned skunk2 stage 2 cams. i have came to the conclusion that i am going to try my stock cams. do you think it will give me better numbers</TD></TR></TABLE>

No, but the stock IM might.

You should post your dyno and a/f charts for Archidictus to look at. If anybody could find a problem with the tuning it's him.

 

well like i said i just left my car in a shop and they called me today,but ill def get the sheet tommorow and post it up.

 

Koo I would like to see tha dyno sheet too

 

I dyno'd & tuned my 00 Si with AEM V2/DC4-2-1/Tanabe SMR, VAFCII, no-cat, plugs, 7mm wires, MSD cap & coil, Walbro 255lph, AEM AFPR.

144whp,106lbtq

oh ya this was at over 96,000 miles.

 

Before anymore wrong info is given out, B16A2s put out roughly 140-142hp to the ground stock.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jugodmyko &raquo;</TD></TR><TR><TD CLASS="quote">my car got dyno tunned and pulled some low #'s i knew it would be low but didnt expect 140..

b16a2
rmfnarrow 421 header
skunk2 stage 2 camshafts
skunk2 intake manifold
aem intake w bypass
fidanza flywheel
p28ecu
apexi n1 full cat back
omni test pipe

we think its the cams, any one know if this would be the problem? what cams do yall recomend? would changing to a act 6puck clutch make a difference?</TD></TR></TABLE>

Now if you would kindly post your dyno sheet, it would be of immense help.

 

Are you sporting the stock wheels? If you have larger wheels and heavier wheels they will also contribute to rotational mass and lower the whp number.

Search other stock EM1's or stock B16's on the board with dyno graphs. They might be very similar to your results.

 

ill get the sheet in a few hours. no there 16 advan rg1's with potenza g3's

 

140 is pretty low. and i couldn't imagine a stock b16a2 only putting down 120whp to 130whp. my friend's si completely stock except for intake put down 147whp.

 

OMG please ignore everything Syndacate has just said. Dude I am not trying to be a dick, but you really don't know what you're talking about

Ok the clutch won't make much of a difference.

A stock healthy B16 with maybe just 2 mods will yield around 135-140whp.

Ok what did you use to tune the car? Crome? VAFC? Hondata? I know you said P28 but thats very vague.

Skunk2 stage 2s might be a little too big if you have stock compression. Try to trade for Stage 1 if anything.

My B16A setup pulled out 174whp 109lbs/trq. tuned with a POS VAFC!!!!!!

The setup was pretty similar to yours too but with a crappy header so something is def wrong. I'm guessing its your tuner.

My setup was:
B16A stock block/pistons/crank/rods everything
head milled .020 (compression was a tad higher)
Skunk2 Stage 2 cams, Skunk2 cam gears, Supertech vS/retainers
AEBS IM ported to ITR TB with Hondata gasket
Mugen copy header (dented a little too)
2.5" crush bent piping no cat no resonator
fake J's racing intake (worst intake in the world)
Exedy Stage 1 with 8.5 Exedy FW
chipped P28 with a VAFCII

As you can see my setup wasn't exactly that crazy. So I'm guessing your tuner just sucks. But post the graph so we can get a better look.

Man I used to be so pissed that I only made 174whp on my B16A, but now that I always see these threads, it actually makes me happy. VAFC owns

 

like i stated earlier larger cams need more compression too work at there potential. I say up the compression and find a new tuner.

 

Also do a leakdown test you could be loosing power through blowby.

 

Still waiting on that dyno chart.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Archidictus &raquo;</TD></TR><TR><TD CLASS="quote">Still waiting on that dyno chart.</TD></TR></TABLE>
interested to see it as well.

 

he told me to post it up for some reason here it is
.
.
.
.
.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Syndacate &raquo;</TD></TR><TR><TD CLASS="quote">That seems about right.

The number of 160hp is at the flywheel, not the wheels.

Your typical B16 due to its low displacement puts out a rather low torque rating - this has been guided by the common complaint of it feeling like a D16 until you get into VTEC.

The D16Z6 puts out about 90-105whp as it's rated at 125-130hp at the flywheel.

Like so, the B16 puts out around 155-160 at the flywheel which translates to about 120whp stock. This is why that complaint happens...with all the stuff you put on it gains you the extra 20hp you have there.

This would be a good example why making an NA 4 cylinder put out rediculous whp numbers is so hard.

The catback isn't really helping you, your exhaust doesn't require it..same with the test pipe, the stock is wide enough. The p28 ECU wont' help you unless it's chipped and tuned. The flywheel will help ur numbers a bit as if its a lightweight flywheel as it's less rotational mass. This though, you have to figure out what a B16 flywheel weighs compared to the one you just put on. Doubt there was much difference based on your numbers. AEM intake helps in the higher end and that header will help you around the lower VTEC area. As for the cams they don't help a whole lot unless you really got a blast setup but they're there so they do help a bit. I've heard of skunk2 IM's actually restricting air flow, though I don't know the fully story on that so I'm not going to say that's the problem.

Based on what you have 140 is about right...I mean it is a little low but it's not like it's rock bottom, just remember that it's only 1.6L therefore has a very low tq. rating. I'd at least expect high 140's to 150 though. If you ask me from what it looks like you have compared to your numbers I'd say you can use a better tune.

That p28 ECU, is that a stock ECU, or is it chipped? If it's chipped, is it running a B16a2 basemap program or a B16a2 basemap program tweaked when on the dyno for maximum performance?
</TD></TR></TABLE>

What you've just said is one of the most insanely idiotic things I have ever heard. At no point in your rambling, incoherent response were you even close to anything that could be considered a rational thought. Everyone in this forum is now dumber for having read it. I declare restricted posting, and may God have mercy on your soul.

(Edited for content.)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SkoundrelUSA &raquo;</TD></TR><TR><TD CLASS="quote">he told me to post it up for some reason here it is</TD></TR></TABLE>


PPPFFFFFTTTT!!!!!!!!!!!!! BAHAHAHHAHAHHA!!!!!!!!!!

I just got so many looks at work. Thanks.