engine specs:

this is a pump gas (93 octane chevron only) car

What's done to it-

B18C1 block & head
ACL bearings
untouched crank (maybe a good micropolish & balance would help)
eagle rods
81.25mm Mahle 12.5:1 c/r pistons, rings, & wristpins (high dome, i realize this is a crappy design for good combustion, next engine will have flatter pistons w/ shaved head)
stock honda head gasket
all honda bearings, gaskets, & pumps
KOYO aluminum radiator, ARC cap

Mildy ported & polished head
Omnipower valves, valvesprings, & retainers
Skunk2 Stage 2 cams
Skunk2 adjustable cam gears
Skunk2 Intake Manifold portmatched to 70mm Erick's Racing S2000 Throttlebody

all clearance specifications per honda's specs.
running on Valvoline conventional 10w30

370cc RC Engineering Injectors
255 Walbro In-tank fuel pump
AEM Adjustable Fuel Pressure Regulator

NGK BKR7E spark plugs, NGK plug wires, new distributor
J's Racing knockoff CF intake by password jdm (whale *****)
DC Sports JDM ITR 4-1 1-pc 2.5" collector exhaust header
Omnipower 2.5" test pipe
Skunk2 cat-back exhaust
Tuned with CROME on socketed honda ecu

Transmission:
B16A tranny with GS-R 2nd & 3rd gears & input shaft
quaife LSD
all new gearspeed synchros, bearings, & seals
filled with GM synchromesh fluid

now for what you clicked for:


we've tried forever to hit the 200 mark with pump gas, stock bore and stroke. first it was 181whp, so we did a larger throttlebody, mild port and polish on the head, matched the 70mm bore on the skunk2 intake manifold, and used a hondata heatshield gasket, and hit 192.

then we swapped the A`PEXi worldsport exhaust out for a skunk2 (much louder, but was needed) and hit 194 this morning, so i tuned on it for an hour or so and finally hit the mark with 200.26. torque was at 140 on a previous run, and was at 139.38 on this run.

all motor's been fun, and i hope to build an 85mm engine for someone in the future, but this car is about to recieve a 6xx whp hampster.

enjoy
all comments and questions are welcome
-Shawn

 

fyi, your dyno sheet pic isn't working, sounds good though!

 

nice. ive made around the same power with pretty much the same set up. 81mm 12.5 to 1 je's
skunk stage 3 cams, stock ports, jdm dc header, type r throttle body, yeilded 206hp on pump gas with a vafc and 140trq also

 

Kick butt?


Modified by LAWNMOWER at 8:13 PM 8/29/2005

 

i hope you're happy now
this was lawnmower's daily driver hatch.
and the pic seems to be working fine?? can anyone else see it?

 

yep.. I can see the graph

great number

Look like the car give up after 8500 rpm

 

welcome to the club

 

looks good, lower your vtec xover to 5600 and smooth out your dip in the midrange

 

yay!!!

....what's in the itr?

 

cool, pic is working now...nice numbers

 

good job man, you must have felt proud

 

you got any 1/4 mile times??

 

Yay shawn im so proud. You know if u put a better header on there it would boost the power like cRaZy!!! So lawnmowers changing motors? Wanna sell that 200hp motor?

 

Looking good and congrats. That VTEC engagement kicks *** too, I like the gain in hp and tq there. Should be fun hitting and feeling the crossover.

 

cool that thing must pull hard at 6k

 

Interesting set up/results.

I managed 190WHP with something similar, but I am at a disadvantage when it comes to head flow. I’m running a stock B16A2 head with just a 3 way valve job, the stock B16A2 intake manifold and throttle body.

Other then that I’ve got almost the same as you... except you neem to be running a good deal more compression then I am. (11.2:1 VS over 12.5:1)

Stock B18C5 block
(Almost) stock B16A2 head - Slightly milled (11.2:1 CR)
Omni valve train
Skunk2 stage 2 cams/gears
Spoon 2 layer head gasket
JDM ITR header
J's style whale ***** intake (Password JDM)
Hondata intake manifold gasket
Omni 2.5” test pipe
RSR EX-Mag cat-back exhaust
P28 running Crome (dyno tuned by the famed Bubba)
RC370 injectors
Walboro 190lph in-tank fuel pump
B&M command flow FPR
Stock B16A2 transmission (open dif)
5W30 Royal Purple motor oil

With all of that I made 184WHP on a dyno (Bubba's dyno at Do It Dyno) that rates 7-10WHP lower then every other dynojet on the planet... so if IM being conservative it should be about 190WHP.

There is no doubt in my mind that when I upgrade my intake manifold and throttle body them retune for it, I should be able to hit the 200WHP mark.

And I still have the head to play with since I haven’t given it a PnP yet, just that 3 angle valve job, springs/retainers and cams.

BTW there is something interesting here. Check out my dyno chart. I’m using the same cams as you, but it’s very different as far as power application. I no longer have a VTEC x-over spike. The car just keeps ramping up power with one continuous pull from idle to fuel cut (well it levels off at 8K because of the intake manifold... POS B16 IM).
I find this to be a good thing. The car defenantly gets much louder and aggressive sounding at VTEC engagement... put the sudden burst of power has been replaced by a lot more non VTEC pull ramping steadily up just like if I had swapped my motor out for a large V6 or something. I guess that’s proof of how good a tuner Bubba really is.

 

The VTEC xover you have right now probably feels faster but depending on what your going for, lowering it will make the powerband smoother and accellerate the car faster. 6K tq peak with around an 8350 hp peak. How much clearance do you have to play with cam gear wise? I think the 70mm throttle body is also overkill at this point....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LsVtec92Hatch &raquo;</TD></TR><TR><TD CLASS="quote">The VTEC xover you have right now probably feels faster but depending on what your going for, lowering it will make the powerband smoother and accellerate the car faster. 6K tq peak with around an 8350 hp peak. How much clearance do you have to play with cam gear wise? I think the 70mm throttle body is also overkill at this point....</TD></TR></TABLE>

exactly.


see my dyno? the line with the major canyon...errr...dip... in power is because the VTEC x-over was too far up in the RPM band. I got a major drop off in power then a huge spike once it kicked the big cam lobes in. It felt like a nitrous kick which was cool, but after lowering the x-over and smoothing out the curve (by a LOT) the car is dor sure way quicker, even though it doesnt have that sudden "kick" any more.

 

thanks for all the replies guys. after i posted up this graph, we did some narrow throttle tuning, and ended up with 201.6 on another full-throttle run. yay!

about the vtec x-over, it was smooth, but on the street it bogged, so i put it 200 rpm later, and it's very smooth on the street.

my itr has managed to remain almost stock (new heart is in the works). it's got a polished jdm itr 4-1 with a catless, resonatorless b-pipe, stock intake (had a J's on it), tuned with crome (thanks john cui). it's got a jdm front end, 16" regamasters, kirk racing roll bar, red bride zeta IIIs and takatas, but you guys don't care about that stuff

Joe-B18-R-
lookin good man. you definitely need better airflow going in, though. try an itr intake manifold and throttlebody (at least). wish we had gone with lower dome pistons and shaved the head with a spoon head gasket

oh well, thanks for all the good replies, and keep em comin

 

I rather the sudden gain in power and torque at the crossover point. Joe's graph is smooth and nice and is a good example of a good accelerating car. But Shady's graph looks more fun, I know that VTEC can be felt and not only heard. With an instant gain of more than 10wtq, should be pretty amazing.

 

Yo sean how u liking yalls dyno? I havent even seen it yet. How much to do a couple pulls on my car?

 

3 pulls for schfifty five

 

swang!! Well i need to hurry up and get a traction bar and a JDM itr header and dyno it. My header hit a manhole and is CRUSHED!! My car is so much slower!!

sean u got a PM

 

i think if you are going to rev past 8500, you too need a different IM/TB combo. it drops off quite a bit, no? The SKunk2 mani is food, especially for turbos. The JG/Eddlebrock intake mani though, its bad *** for NA cars running 9K+ RPM. port match that with your oversize TB and i think you should get pull to fuelk cut. At least thats what I plan to do to mine.

BTW what fues are you running? Im stuck with **** 91 oktayne here in smog **** cali.

edit: nm i see you are using 93

 

well, skunk2 mani's aren't really food, but to each his own i guess???

anyways, i think the skunk2 mani is sufficient