Went to the dyno yesterday to tune the B20Z...the numbers weren’t quite what I was expecting but there just numbers anyways, ...right?!?
The car feels good overall. I was pretty happy with the torque.

The dyno was a Dynnapack, other modifications include:
Crower 403 camshafts
Supertech valve springs
3-inch short ram intake
DC 4-2-1 header w/2.5-inch collector mod
2.5-inch Carsound cat.
2.5-inch crush bent exhaust
B&M fuel pressure regulator
A’PEXi S-AFC
GSR transmission
Exedy Clutch
ACT Prolite flywheel

I was hoping that the numbers would have been higher, but a DA with a B20Z with a similar build (I think he had 404's though) was just over 150 hp with Neptune. So, overall I don’t think it was too bad; but I think I might be investing in a VTEC head next year.

The thin lines are before tuning.




Modified by b20sedan at 7:30 PM 2/8/2007

 

my stock b16 with aem intake and hks exhaust with stock ecu put down 143whp.
b16 block was 900 bucks
hope you didnt spend more the 900 bucks

maybe high compression pistons would make more power for you

 

Was this tuned by Locash?
Look at the gains rather than the raw numbers-looks pretty good to me.

 

Yeah, went to Locash.
I’m sure the numbers would have been higher if I visited another dyno, but I’m not really looking to compare my numbers to another car on a different dyno. I’m pretty sure that my B20 is faster than a stock or lightly modified B16.

 

My brother has a b20 with a gsr tranny. Its got the usual i/h/e and its locash neptuned. He's got 404's on deck right now.
But the way it sits, its so much more fun to drive than his old B16.

 

Do you know what numbers he put down?
Thanks,

 

graph looks good! you need compression and a better header for sure!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JasperDA9 &raquo;</TD></TR><TR><TD CLASS="quote">my stock b16 with aem intake and hks exhaust with stock ecu put down 143whp.
b16 block was 900 bucks
hope you didnt spend more the 900 bucks</TD></TR></TABLE>

Different dyno most likely and no b16 is gonna put down torque like that with equal mods.

 

Nice flat torque curve

 

Yeah, that's a big gain, and great looking torque curve! The numbers do seem a little low for a Dynapack, but as long as you enjoy it, who cares

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b20sedan &raquo;</TD></TR><TR><TD CLASS="quote">Yeah, went to Locash.
I’m sure the numbers would have been higher if I visited another dyno, but I’m not really looking to compare my numbers to another car on a different dyno. I’m pretty sure that my B20 is faster than a stock or lightly modified B16. </TD></TR></TABLE>

with what evidence can you prove that? power to weight ratio? i have more HP in a car with the same weight or lesser with better gear ratios?
I dont see how your b20 would be faster?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JasperDA9 &raquo;</TD></TR><TR><TD CLASS="quote">I dont see how your b20 would be faster?</TD></TR></TABLE>
Peak power is not everything. Torque is a big factor in drag racing. Here is a B16 vs an LS. The B16 makes about 10 more peak HP, but which car do you think would be faster?



Modified by b19coupe at 7:06 AM 2/8/2007

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b19coupe &raquo;</TD></TR><TR><TD CLASS="quote">
Peak power is not everything. Torque is a big factor in drag racing. Here is a B16 vs an LS. The B16 makes about 10 more peak HP, but which car do you think would be faster?
</TD></TR></TABLE>
i dont' think he understands the role torque plays in racing.

 

TORQUE.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JasperDA9 &raquo;</TD></TR><TR><TD CLASS="quote">my stock b16 with aem intake and hks exhaust with stock ecu put down 143whp.
b16 block was 900 bucks
hope you didnt spend more the 900 bucks

maybe high compression pistons would make more power for you</TD></TR></TABLE>

he may have spent more, but like everyone said, that torque will kill ur b16 anyday

 

ahhh very nice i have a b20b with ported ls head and crane cams and it so much fun to drive oh yah paired with a b16 trans.I want to do a set of crowers as well

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AMLS4dr200whp &raquo;</TD></TR><TR><TD CLASS="quote">

he may have spent more, but like everyone said, that torque will kill ur b16 anyday </TD></TR></TABLE>

I agree, I had both engines and the B20 at the track was just as fast as my old B16. And if I werent a shitty drag racer it would probably be faster than my old B16.

 

spoonef are you really a girl? (girl that rocks a b20 is hot)

anyways, B20 have way more potential than any b16 could ever hope to accomplish. That with out forced induction of coarse. Compression and maybe a Vtec head would definitely be your friend if you want to go fast. I have a built b20 with 220whp and 156 wheel tourqe, on a stock b16 manifold. Think that will beat your b16?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JasperDA9 &raquo;</TD></TR><TR><TD CLASS="quote">

with what evidence can you prove that? power to weight ratio? i have more HP in a car with the same weight or lesser with better gear ratios?
I dont see how your b20 would be faster?</TD></TR></TABLE>

Seen first hand.

DA with a low compression B20b with a ys1 trans against a 94 Del sol with a '00 USDM Civic Si Complete swap. DA was able to pull on it, whether it'd be from a complete stop or rolling from a highway.

 

What about potential of the stock shortblock? b16 vs b20

Im in the same EXACT boat as you except i already have my b16 tranny. The setup is going in a DA too. My only concern with the b20 is being limited in power potential because of the sleeves.
I plan on spraying eventually and im really concerned about the b20 shortblocks longevity with nitrous.
Can a b20 take a 75 shot every once in a while without crapping out on me?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by brmiddle &raquo;</TD></TR><TR><TD CLASS="quote">
i dont' think he understands the role torque plays in racing. </TD></TR></TABLE>

yeah i must be completely obvious what torque even does.....
hmm i have a b16 a b18c and a k20....i must be an IDIOT!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by J’s 94 Accord &raquo;</TD></TR><TR><TD CLASS="quote">

Seen first hand.

DA with a low compression B20b with a ys1 trans against a 94 Del sol with a '00 USDM Civic Si Complete swap. DA was able to pull on it, whether it'd be from a complete stop or rolling from a highway. </TD></TR></TABLE>

I would call BS if you wouldn't claim seeing it..
I've seen a b16 del sol pull on DC2 gsr's on the highway and from a dead stop.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JasperDA9 &raquo;</TD></TR><TR><TD CLASS="quote">

I would call BS if you wouldn't claim seeing it..
I've seen a b16 del sol pull on DC2 gsr's on the highway and from a dead stop.
</TD></TR></TABLE>

haha did the dc2's know they were racing?

 

nope b20's with stock sleeves arent awsome so I would try to at least get a blockguard or sleeved if possible.

 

Keep the bs out of the thread. I came in here to read something and all I got was a bunch of retarded b16 bench racing.