Libertariat

Because I've been down that road too. Cheap exhausts, bolt ons, mini-me. I never found that it was worth it. All I did was spend $200-400 and the car was marginally quicker. Swapping to an EX transmission has done more for my car than anything else.

I suppose most forum users are holding people to the standard that everyone wants something that makes 150whp+. I just personally hold the opinion that for the $200-1000 you could spend making a d-series fairly quick you could do that equally by swapping in a b18b with a shorter geared b-series transmission.

I agree unequivocally that d-series are phenomenal little motors and have tons of potential in OEM form even with high mileage and a light turbo build. 175-200whp would make a d-series faster than most cars on the road, be fun to drive, and get great gas mileage.

It's fairly easy to stereotype someone who wants to go fast for cheap and equate them with someone who doesn't know much about cars and thinks there's a magic trick to making them go fast that only costs a few hundred dollars.

Upgrading from a y7 to a y8, for example, isn't what I would consider substantial since the y8 is a stock motor in a more expensive trim.

I'm fairly positive that a quick y8 with bolt ons has a lot less torque than a b18b with a b16 trans for example. Most d-series tend to have a lot of miles, and the first thing I'm concerned with is longevity.

661rex89si

again im the moron who quoted everyone but yet you still have nothing useful to contribute. the dude is not looking for a 1320 beast which with realistic goals happiness with a d-series and a fraction of the price is realistic. from what you just said you really didn't try at all you spent your money on the wrong things.


i don't know why this became a d vs b conversation when all the op wants is a more aggressive d15 which is possible.


if your trying for something over 150hp n/a with a d-series it starts becoming expensive i agree but why every time anything d-series gets brought up all the b-series guys have to come in here and destroy it because not everyone is as self absorbed as them. if power was everything i wouldn't be driving a honda .

Libertariat

I'm by no means a "b-series guy"

I've had a stock y7 for 6 years now. I know what it's like to go slow.

longhairbro17

Thanks for everyones opinions. Im not looking for 150 whp. If I can get close to 135 I would be pretty happy. Right now I plan on getting a cam, p&p, mpfi swap, mill the head, I/h/e. My question is how much should I mill the head for decent compression without really touching the block? Id like to get somewhere near my goals.

Libertariat

My point here is that is a lot of expensive work on a really cheap and limited motor. You could do that with a lot less headache and a lot less money with a swap. A b18b, b16a, b18c would all easily make 130whp+ without needing any noise making bolt ons.

Madmood

Simple... Mill the head .040 , Get a decent header , intake , and cam. Along with a ported head , you should reach the 130whp goal. Or you could be like everyone else on HT and throw a swap in it. Doesnt take much skill to do that IMO.

longhairbro17

It won't cost me that much. The p&p would be the one thing that would cost a lot and im taking care of that for free. I have a family friend that can do it. All I need is the cam and get the head milled. My friend may even do that too. Any one can do a swap (relatively speaking) I like the idea of something different and pretty cheap.

661rex89si

i didn't say you were a b-series guy reading owns you.


again nothing useful

word!!!

builthatch

OP, this is a handy tool. i've used it for years and years.

you can use it to see how things will react. of course, it can't clay your setup for you to predict if there will be interference, or predict dynamic compression (the compression you actuall have when the engine is running, vs. static compression), but it's still very handy.

http://www.knology.net/~jediklc/dcalc.htm

K7-1Ktrevor

this is gonna be my new sig.

people don't think about traction or fun factor, its all about peak numbers. if you don't get too caught up on numbers D series are awesome, just like my favorite motors (b series non vtec) every one will hate on it here. Iv had a 85x89 motor that made 231whp and 151 tq sae and I would take my old 145whp all motor ls for it any day of the week. it hooked up, handled amazing and I beat on it all day every day with no issues.


think of it this way, you have a gutted out hatch with a mildly built type r motor that runs high 12's no one cars, if you have a high 13 second d16 people will trip out (at least thats how it is around here.) or they will just say your spraying lol.

tagperformance

I'd use the d series for emission purposes and go and find a f22a accord motor for around 400 or less and pick up a f2d adapter kit. The platform has great potential and will be fast on a budget.

ekcid97

dude jus bye a zc swap for now a lil more power.
put a gsr tb on it and exaust and you will be happy for the money you spend
zc dohc=200$$
gsr tb=40-50$$
2.5 straight with res.=150
))

longhairbro17

i need it to be smog legal. so the dohc in california probably wouldnt work. have to get it bar'd and all that stuff and in the end probably wouldnt be worth it.

ekcid97

if you leave it stock it will smog.done it befor with my friend..
its up to you...
but its cheap quick for the money you put into it an good on gas...
an i dont think it would be to hard to get it bar'ed...
as long as you have papers for your motor an everthing....
jus my imput im goin that rought while i build my b18c......

longhairbro17

Where could I get a zc dohc for 200 and that's just for the engine isn't it. Wouldn't I need everything else like transmission and motor mounts. Ecu. And thats assuming its already got the im? If I could get the entire swap for 400 I would consider it.

ekcid97

dont have to change mounts. its a d16a6 why would u change the mounts.its not b series
you can use your same tranny if it a 5 speed. mine came with the 5 speed
pm7 ecu is like 25-50$$$
its a good cheap motor
im getin my zc dohc this weeek instead of rebuildin my d15b2
jus need the pm7 ecu then im good an im only at around 250$$
but i am gettin a gsr tb an 2.5 straight pipe then i should be around 550$$
cheap build an its great for turbo....theres a thread on it

longhairbro17

how is it a d16a6 if its a dohc? d16a6 is a sohc.

welfarepc

i built a stroker D17 for $200 plus rings and bearings... ran 14.5 @ 94mph on street tires my first time at the track im sure its got more in it.

let the guy build his motor.

jaycorolla

iTrader: (1)

long hair- the zc dohc motor is almost the same as a d16a1 just more aggresive cams and slight other diffrencess that makesa zc more wanted but the zc dohc bolts right up to your d-series tans, and uses all the same mounts that you use for your d15 motor. its a straight drop in and the ecu plugs right up since its an odb-0 ecu. its easy quick and cheap depending on where you get it at. plus if you ever want to go turbo its a great motor to charge and they can go above 200+ on a stock motor... more like around 270 or so... ive seen it.

grumblemarc

iTrader: (4)

2 year old thread. I hope he figured it out by now.

jaycorolla

iTrader: (1)

ghee..... i know its a 2 year old thread but you'll be surprised in how people still dont figure this stuff out...... I haven't seen anyone yet really build a all motor high comp d15b2 or b7 motor. i have built many single cam d16 all motor and produce some really nice numbers especially for using on a track where it keeps you right in the range you need.

when looking that the stroke of a d15b2 or b7 it has a better stroke than a b16, if someone would actually make some good h-beam rods for it and some actual high compression pistons that are for a d15b7 i think this motor would do really well as a mini-me high compression motor. im not even going to worry about hp numbers compared to more like torque n rpm numbers since it would be something more for track/street usage.

think about it, a well built d15b7 bottom end with a d16z6 head that has port work and everything done to support 9000+ rpm... (im not saying it would make power at 9000+ but it has the strength to do it), and a CAM that is made for it. I think it would do better than a b16..... but this is theory.....

So if anyone has any info about parts for the d15b7 post it on here.... like pistons (aftermarket ones) rods, and parts that would help create this d15b7, and depending on the overall cost i may even do this build... but as for now the one thing that is holding me back is pistons at the moment- i know i could get a custom set but i dont want to pay 500+ for pistons for a d15b2 motor.....( if someone produced pistons in the price range of 300-400 that is correct for a d15b2 and makes it a high compression... well then this motor will get built) i have found rods for the d15b2/b7 and they are made by CXracing and cost about 275 for the h-beam set.... SO HT family my challange to you is who makes a high compression pistons for the d15b2/7 motor with STD bore???

esteen2

Crower has rods, SRP makes a good piston. I'm sure there are custom pistons too, but not for an off the shelf price. I like the d15 crankshaft better than the d16 as we'll. Depending on what kind of power you want to make p29 pistons and stock rods with Arp rodbolts will go a long way.

Dee9222

Can someone tell me why my vtec won't kick in or is a d15b2 even vtec

hot66truck

what all should be done to the bottom end?