aznboysrfr

hey guys ... I just wanted to get an opinion about my friend's b16a2 motor that he just swapped into his 99 ex coupe. He bought it a while back ... maybe 6 months ago and supposedly it was bone stock (internally).

He doesn't have very many mods to his car ... because he's trying to get it BAR'ed (stupid california smog). Anyway, right now, he has a bone stock Si intake, stock Si header/cat, jdm CTR full exhaust, ground wire kit, exedy stg 1 clutch with prostreet 8 pound flywheel, ngk iridiums, jdm sir II tranny (4.4 final drive I think, no lsd), some heavy knockoff crap 16" rims with not so great tires. That's it ... everything is stock stock stock. spare tire removed, but that's it.

Ok, well I have a K20A in an 02 civic ex coupe, cai, oem exhaust, nextgear img, header/cat ... basically stock as well. I put down 200.4 whp on a dynojet the other week. We raced the other night from a roll, twice ... well, I ended up pulling 2 cars on him by about 85 ... doesn't that seem pretty weird?? we are nearly equal in driving skills and it was from a 10 mph roll. (I don't have traction problems either)

it gets weirder ...

my other friend has a 01 civic dx coupe ... he swapped in a k20a3 and now has a jackson racing s/c with greddy evo 2 exhaust. He put down 185 whp on the dynojet. He doesn't have traction problems either, so that's not the issue ...

well, my other friend and my b16 friend raced last night ... 1 passenger in each car ... my k20 friend pulled about 1 car at the end of 1st, and after that, they were completely even the rest of the race ... which was til about 85-90.

any opinions to why his car is so fast? ... I don't have subs or anything really heavy in my car ... in fact, I have 150 pounds of weight reduction. my b16 friend doesn't have any except for his spare removal. btw, NONE of us have power steering.

maybe his tranny is geared very aggressively?? ... but then so is mine ... I think I would pull a lot harder than that ... ?

EGmikeH22

i bet if you get actual weight of both cars, and actual dyno HP, then do some division, you'll see some close-*** numbers.

B18C5-EH2

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EGmikeH22 &raquo;</TD></TR><TR><TD CLASS="quote">i bet if you get actual weight of both cars, and actual dyno HP, then do some division, you'll see some close-*** numbers.</TD></TR></TABLE>

Ditto.

Also a supercharged K20A3 doing only 185whp seems kind of shitty, but then again they onlt baseline like the B16A at 140-145whp or so.

EG-SI(rII)

Short ratio tranny (sirII)?
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EGmikeH22 &raquo;</TD></TR><TR><TD CLASS="quote">i bet if you get actual weight of both cars, and actual dyno HP, then do some division, you'll see some close-*** numbers.</TD></TR></TABLE>
A.K.A. Power to weight ratio. (no offense)

aznboysrfr

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C5-EH2 &raquo;</TD></TR><TR><TD CLASS="quote">

Ditto.

Also a supercharged K20A3 doing only 185whp seems kind of shitty, but then again they onlt baseline like the B16A at 140-145whp or so.</TD></TR></TABLE>

it's only the jrsc street kit ... 5 psi ... untuned.

well, according to Edmunds.com, my b16 friend's car only weighs 100 pounds less than my car ... and only 50 pounds heavier than my friend's car. both my k20 friend and I have 17" ssr competition rims ... so they're very light. I dont' think that would account for much anyway since dynojets read whp with the wheels on. Again, b16 friend doesn't have any weight reduction other than spare removal ... my k20 friend has no reduction + subs ... I have 150 pounds weight reduction.

I don't even know how his numbers could even be close ... like you guys said, baseline b16's only do like what ... 140 whp?? ... I would think that I would pull harder than 2 cars by 85-ish.. same with my friend only pulling 1/2 car.

but yeah ... k20 friend = 185 whp, me = 200 whp ... we have yet to dyno my friend's car .. but it's nearly stock b16!

dohcdelsol93

maybe your not giving your friend enough credit, maybe he drives like Jesus and just out drove you.

aznboysrfr

^ haha

we are all pretty equal drivers

EGmikeH22

get the cars weighed, you'd be surprised. you can't compare curb weights of modded cars with multiple people.

actual power / actual weight = both cars

gorath23

It could also be where you respectively make your power, I don't know a huge much about power curves etc but if you make your 200whp right at the top end but really shitty figures up to there (no offense I could be wrong) then that might explain it. Also It'd be interesting to compare your torque figures etc.

SkoundrelUSA

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EGmikeH22 &raquo;</TD></TR><TR><TD CLASS="quote">get the cars weighed, you'd be surprised. you can't compare curb weights of modded cars with multiple people.

actual power / actual weight = both cars</TD></TR></TABLE>

x2

Or race at the track and compare timeslips?

aznboysrfr

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EGmikeH22 &raquo;</TD></TR><TR><TD CLASS="quote">get the cars weighed, you'd be surprised. you can't compare curb weights of modded cars with multiple people.

actual power / actual weight = both cars</TD></TR></TABLE>

even so ... it's not like he weighs 500 pounds less than me though. even comparing himself to myself ... I weigh around 135, he weighs about 180 haha.

when I was bone stock with my sohc, I used to run dead even with him up to 110 ... and that's when he had i/e on his sohc ... so I'm not sure weight is a huge issue.

JSPECSIR

-----SIR II TRANNY----- close ratio----- works wonders, think about it

shauniewalnuts

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C5-EH2 &raquo;</TD></TR><TR><TD CLASS="quote">

Ditto.

Also a supercharged K20A3 doing only 185whp seems kind of shitty, but then again they onlt baseline like the B16A at 140-145whp or so.</TD></TR></TABLE>


they paid 5k or whatever the sc costs.... for 15hp?? somethings terribly wrong there

EGmikeH22

weigh the cars, quit jackstand weighing

aznboysrfr

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


they paid 5k or whatever the sc costs.... for 15hp?? somethings terribly wrong there


</TD></TR></TABLE>

185 whp. 5 psi = around 40 whp ... 140 whp baseline + 40 whp = about right.

egmike: check out my above post about us being even when we were both nearly stock sohc.

JDM_Ej

Also the K20 motors vary greatly. One K20 might have 10-15hp in stock form over another. Just the design of the engines.

teknoracing

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM_Ej &raquo;</TD></TR><TR><TD CLASS="quote">Also the K20 motors vary greatly. One K20 might have 10-15hp in stock form over another. Just the design of the engines.</TD></TR></TABLE>
True that. Remember the condition and the maintenance of engine can add to it as well.

Plus you cant compare your car and your friend's car (non b16 car) because they are different as well as the conditions probably werent the same, ie weather, how much gas in tank, shift points, etc.

compwc18

k20s can put out a lot more power than a b16 can, and I think a K20 would pull on just about any civic with a b16, the newer civic may weigh a little more but also has a lot more power than the stock b16, because stock b16s only put down about 130 to the wheels and 115-120 ftlb of torque which isnt too much.... post some pics of the coupe with the k20 be interested to see it, I havent seen any yet.... and I thought about purhcasine a 01 coupe and swapping a type s motor in it hehe....

Redcoupe

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by compwc18 &raquo;</TD></TR><TR><TD CLASS="quote">k20s can put out a lot more power than a b16 can, and I think a K20 would pull on just about any civic with a b16, the newer civic may weigh a little more but also has a lot more power than the stock b16, because stock b16s only put down about 130 to the wheels and 115-120 ftlb of torque which isnt too much.... post some pics of the coupe with the k20 be interested to see it, I havent seen any yet.... and I thought about purhcasine a 01 coupe and swapping a type s motor in it hehe.... </TD></TR></TABLE> B16s usualy put down between 135-140 to the wheels, and they have about 110-115tq at the crank.

I've ran a couple of RSX-S's in the 1/4 and beat them, some had intake, header, exhaust, and some were closer to stock. If they get a tune, I'm toast.

I'm in no way knocking the K-series, or your statement about B16s, but boy I sure do wish you would designed it.

rysingsun86

;] maybe ure friend shifts better lol simple?

B18C5-EH2

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 5THGENSI &raquo;</TD></TR><TR><TD CLASS="quote">-----SIR II TRANNY----- close ratio----- works wonders, think about it </TD></TR></TABLE>

I'm sorry I must have missed the part where the JDM second-gen SiR tranny had closer gears that any other 1992-up B16A transmission.

Pssssst!

Any hydro B16A transmission will have the exact same gear ratios - this includes the JDM B16A hydro, 94-97 Del Sol VTEC, and 99-00 Civic Si.

If someone has a B16A swap then I'd expect for him to have the matching B16A transmission.

v4lu3s

why dont you guys try trading cars for a race?
that way you can eliminat river from it possibly....unless your buddy beats you in his car AND your car....

aznboysrfr

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by teknoracing &raquo;</TD></TR><TR><TD CLASS="quote">
True that. Remember the condition and the maintenance of engine can add to it as well.

Plus you cant compare your car and your friend's car (non b16 car) because they are different as well as the conditions probably werent the same, ie weather, how much gas in tank, shift points, etc.</TD></TR></TABLE>

actually I've raced my friend when he had his sohc literally maybe 40 or 50 times with nearly the same results. we are a bit competitive with eachother

again, with that being said, I am positive it is not a weight issue.

aznboysrfr

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by compwc18 &raquo;</TD></TR><TR><TD CLASS="quote">k20s can put out a lot more power than a b16 can, and I think a K20 would pull on just about any civic with a b16, the newer civic may weigh a little more but also has a lot more power than the stock b16, because stock b16s only put down about 130 to the wheels and 115-120 ftlb of torque which isnt too much.... post some pics of the coupe with the k20 be interested to see it, I havent seen any yet.... and I thought about purhcasine a 01 coupe and swapping a type s motor in it hehe.... </TD></TR></TABLE>

here are just a couple pics ... but I don't want this to turn into an "appearance" thread:

aznboysrfr

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C5-EH2 &raquo;</TD></TR><TR><TD CLASS="quote">


If someone has a B16A swap then I'd expect for him to have the matching B16A transmission.

</TD></TR></TABLE>

actually, he bought the tranny first and then bought a b16a2 longblock...