fredefhatch

So i am looking on info for a single cam in a 91 hatch like what parts would be good to make the engine not looking to turbo just a good strong engine was thinking about a d15b7, a6, y8 a single cam v-tec that i could build, well let me know your opinions.

hondamark35

the A6 would be the most straight forward. do a google search for single cam honda forums. you'll find much more info and support there.

OneBadTurboCRV

Z6 block and Y8 head/ intake manifold

rudyndrew

D16a6 is where its at. grab a d16z6 intake then port match for a b16 tb the basic bolt ons with chipped ecu and light flywheel and u got a quick lil ****er. Thats my setup, i had the d15b2 mpfi and found a a6 longblock with rebuilt head and its a fun car to drive. Not quite b16 fast but it moves.

xotic_crx

Honestly, an A6 is the easist. Do a z6 intake manifold, and run the Z6 throttle body. A b16 TB is too much on a stock sohc, it may feel more responsive, but nit faster. Anywho, with an A6, you wont have to convert to obd1. If you already are, or plan to, probably just drop in a d16z6 (sohc vtec) and be done.

tonylovesjdmEF9

why a y8 head???????


and bro i got a d15bvtec (jdm) motor is the best single cam out there better than z6 n y8 i owned both a z6 n y8 so i know what they could do the only good thing about having a z6 is that you could put pm9 (jdm zc dohc) pistons and have a high comp ratio but anyways back to the jdm d15b vtec i have it its been a great motor i taken alot of friends for rides in my ef they say its beastly for a sohc n all i have is headers sk2 intake many with b20 throttle body and aem short ram and it pulls nicely i taken out ls with this motor

OneBadTurboCRV

Z6 block has better oiling and the Y8 head has better quench (better factory bowls) with the intake being more refined to the torque curve. This is assuming you want to either build it up or use cheaper used factory parts. Otherwise go stock D16Z6 - bit if you want to stay OBD-0 then hard to say... because pretty much all OBD-0 SOHC's suck. I would go JDM D15 or D16A6.

Also I am sure your D15 feels peppy, but if you put a stock Y8 in a EF it would walk a D15... The only way you are beating LS's is with shitty drivers or the actual vehicle (decent weight difference).

hybridmiklo

Serious? best single cam? F22b.

BiG ChOr!Zo

iTrader: (1)

zc sohc non-vtak

tonylovesjdmEF9

how is a motor with less power gonna be faster than a motor with more power???

24TEN

iTrader: (2)

^By making more power/tq at a given RPM and matched with a decent transmission.

KINGVEM^^ED6

iTrader: (1)

D15b>erRrything

Einhander276

JDM D15B Single Stage VTEC or D16z6. the z6 is more friendly to find/look for parts. Also the D15B is unique if you wanna do stuff to it. Trust me on this one!

tonylovesjdmEF9

king vem would vouch for my d15bvtec

D15B VTEC

Found in: 1992-1995 Honda Civic Vti (Japanese Market)
Displacement : 1,493 cc (91.1 cu in)
Bore and Stroke :75,0×84,5 mm
Rod Length : 137 mm
Rod/Stroke : 1.62
Compression : 9.3:1
Power : 130 hp (95.4 kW, 130ps) @ 7000 rpm
Tq: 106
V-tec switch over : 5500 rpm
Redline : 7500 rpm
Rev-limiter : 7200 rpm
Valvetrain : SOHC (4 valves per cylinder)
Fuel Control : OBD-1
ECU : p08 (small case Ecu)



D16Y81.6L 16-Valve SOHC VTEC Also available in New Zealand under the code D16Y6

Found in:
1996-1997 Honda Del Sol Si (US)
1996-2000 Honda Civic EX (US, UK)
1996-2000 Honda Civic Si (Canada)
Displacement - 1,590 cc
Redline - 6,800 rpm
Rev Limit - 7,200 rpm
ECU Code - P2P
Vtec Switch over - 5,600 rpm
127 hp (95 kW) at 6,600 rpm
107 lb·ft (145 N·m) at 5,500 rpm
Compression - 9.6:1

tonylovesjdmEF9

so no way a y8 will take me unless its boosted or built

tonylovesjdmEF9

best choice if you keeping obd0

OneBadTurboCRV

YaY! Now we are bench racing! Fun - Ok so prove to me how your great motor smokes LS's again?

tonylovesjdmEF9

power over weight ratio with a si tranny there done n that doesnt mean every single time i beat them gessh sorry that i was giving info to the dude mr neversatisfied he did ask what motor is the best and so far two ppl agreed with me so yeah what else you want videos dyno charts and go to were you live and show you the car????? sorry but you specialy sir need some of your own avatar(haterade)

Rayztoyz

All great points. I am in the same boat. Mine is a '90 hatch with a d15 and dpfi. Would I need to convert to mpfi to reap the benefits of throwing a y8 on there?

uptownx24x

I hear that the mini me (d16a6 block with d16z6 head) was one of the better swaps. That's just what I collected from the FAQ. I'm personally goin with the d16y8 head and d16y7 block. Only because I'm getting it for cheap and I am getting it off a friend. Have not really heard much about the power aspect of it. But anything is a step up from dual point

OneBadTurboCRV

TonyLove - it's all fun and games to me. Either way I just checked eGay and the cheapest JDM 92-95 D15 was still $1k - and you are stuck with whatever transmission you have. At that point your are better off going B-swap. Hey, if you are happy with it then good for you - I don't play with D-series any ways, at least not any more.

P.S. I have always said, "The Haterade is there for you to drink, not me!"

rudyndrew

Know a shop out here that's got d15b vtecs for 450.

alex14

I have a z6 swap in my sedan and an SI trans. I race near every weekend and I do beat LS Integra's on the regular. Doesnt surprise me at all that a D15b would do the same, especially in a lighter hatch.

it depends if you want to go OBD1 or not. If you dont, I would say a d16a1/dohc zc. that way its DOHC (~130hp) but you dont have to swap mounts and you can keep your d-series trans.
if you do go OBD1 (i would, and did) I would say a D16z6 with a y8 intake mani, hondata intake gasket, and a b-series TB (port matched of coarse. I have done all this to my car other than the y8 mani and its pretty quick. My I/H/E integra GSR still beats it, but like I said, it can beat LS's all day long.

xotic_crx

The best thing you can do is add an Si trans. Honestly, you can keep your mpfi b2, go with a Z6 intake and TB, an A6 cam and the right cam gear (search, I don't remember) and make good power. As for b series TB on stock d-series, I still stand by they're too big. If Honda put a 58-60mm on a 160hp, 8k rpm motor, don't you think its a bit much for a 130 HP, 7k rpm engine? Its not all about volume, velocity is key as well. This is another reason I like the stock Z6 IM, plus i've heard of the Y8 causong either the #1 or 4 cylinder to be a bit leaner than the rest.

I had a stock A6 block with a stock Z6 head for a while and it was pretty peppy. In the 1000ft in the same car, my friends stock D16A6 with same I/H would just edge me out due to better low end. 1/4 I would be a bit faster.

Now, the same setup with a Crower level 2 cam, edlebrock IM and a crome tune by myself has me beating most bolt-on to lightly modded b swapped cars. Only ran across one nicely done 88 dx hatch that got me in 3rd gear with about the same mods as me.

alex14

I never understood that logic. I mean, If honda puts 1.5" pipe on the car from the factory, that should be plenty, right?
I put a 60 MM TB and port matched my Z6 in my car and I felt a good increase in power all the way through.