ok, i have a 92 dx with a jdm d15b vtec. its out of its warranty by like 2 months and it maing some serious noise in the bottom end. so.... rebuilding the bottom end: around $1000. i can buy a y8 in the junkyard for $75 but i know nothing about it and dont even know if it came out of a running car. or buy an a6,z6,y7,y8, or sohc zc bottom end and do a mini-me. if a mini-me, what bottom end would be best. i know right now im running low 15,s on the d15b, if i go mini-me, im i going to make any more power, or lose power, same with torque, someone help me out here.

i would be retaining my d15b vtec head since its the exact same as the z6 but with a hotter cam.

 

i personally dun think so, u should jus put it towards a dohc swap/

 

ok, should have stated this in the begining. NO DOHC "B" SWAPS. i like doing things different. everyone around here is going with the b. if i wanted i can go right now and get a b18b1 for $75. i want to pop my hood after smoking a gsr and have them find a sohc. thanks for the input though.

 

imo ....not worth the money unless you have all the parts laying around

 

You won't smoke a GSR with a mini me

 

I have a z6 head on my car....I'm upgrading to a full z6 swap ASAP. Its not going to pull faster than your d15....I'd hold out till you can do it all at once.

 

i would just go for a b series swap it's too much of a hassle for a mini me

 

imo NOT WORTH IT

 

My buddy did a mini-me becuase he didn't have the money for a swap. It was better than what he had. It would have kept up with a 99-00 stock Si in town, but he got the ***** of spending all that money on it and not going anywhere, so he swapped to a B. He now regrets ever spending money on the D.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Phantastic &raquo;</TD></TR><TR><TD CLASS="quote">i would just go for a b series swap it's too much of a hassle for a mini me</TD></TR></TABLE>

Please shut up.

Anyways the first question you need to ask yourself is:

Do I have the time, the tools, the ability, and the money to rebuild a bottom end?

If the answer is "yes" then I'd be looking for a complete 88-91 Civic/CR-X Si D16A6 that smoked, but NOT knocked, and then plan on rebuilding it.

Why?

Well the 88-91 blocks are as stout as the VTEC blocks, and the pistons are less dished than the VTEC pistons, so the CR ratio would be a bit higher than with the Z6/Y8 block. The A6 blocks are also dirt cheap or even FREE because "they ain't even VTEC y0!"

I'd buy an old one with unknown mileage as long as it did not knock at all. Then buy new rings, pistons, head gasket, seals, gaskets, bearings, T-belt, waterpump, etc. etc. and rebuild it.

I did this with an old 89 D16A6:

Before:



During:



After:



Click the link for the entire build story:

https://honda-tech.com/zerothread?id=401854

It had 200K miles on it and was smoking when it's owner decided to swap in a B-Series. I got the longblock for FREE and I went nuts with the rebuild, all with OE parts including new pistons, rings, bearings, gaskets, seals, waterpump, T-belkt, etc.etc.

I chose some crazy high domed pistons from the 88-89 Integra because in a Non-VTEC D series with the VTEC metal head gasket (thinner than non-VTEC gaskets) it yields 11:1CR.

For your engine build (a D16A6) I'd probably tear the engine down, have a machine shop mic the cylinder bores and if it needs nothing more than a hone I'd just keep the A6 pistons and buy new rings rather than new pistons.

A6 pistons in an otherwise stock D16Z6 yields a higher than stock CR ratio of 10:1 which is still totally safe on pump gas. The stock CR ratio is a lowly 9.2:1.

If you ended up needing a slight overbore and new pistons then you could get some flat top 86-87 Integra pistons in the 25 over variety. Then you'd have roughly 11.5:1 CR, which is great for power, but you'd also need Hondata or a fuel pressure riser with V-AFC to get the engine tuned so it won't spark knock with premium fuel.

Again I run 11:1CR on my daily driven D16A6 on premium pump gas, and it runs great with no sprak knock provided the timing is reasonable.

While I do love the B series (I have a B18C5 hatch and B16A2 hatch as well) not everyone can afford one. Also my lowly non-VTEC D16A6 with the stock head and cam with only mods being 11:1CR, 2.25 custom exhaust, and a DC header runs neck-and-neck with my wife's 1992 Si with it's i/h/e B16A2.



Put that in your B series pipe and smoke it y0!

 

interesting little write up there.

but anyhoo,
anyone who even mentions the price of paying someone to rebuild their motor back to stock is probably not going to build it himself with a hybrid high comp setup.

i'd recommend just finding a d15b bottom end and putting that on

minimes are good and all, but the d15b is prettymuch a HONDA MADE minime with great features and power output. SO you get great performance and reliability.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by a1320honda &raquo;</TD></TR><TR><TD CLASS="quote">ok, should have stated this in the begining. NO DOHC "B" SWAPS. i like doing things different. everyone around here is going with the b. if i wanted i can go right now and get a b18b1 for $75. i want to pop my hood after smoking a gsr and have them find a sohc. thanks for the input though.</TD></TR></TABLE>

how about an "H" or a "K" series swap??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EJellyfish1 &raquo;</TD></TR><TR><TD CLASS="quote">how about an "H" or a "K" series swap?? </TD></TR></TABLE>

he said SOHC, which means he need a F-SERIES duh.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C5-EH2 &raquo;</TD></TR><TR><TD CLASS="quote">I chose some crazy high domed pistons from the 88-89 Integra because in a Non-VTEC D series</TD></TR></TABLE>

are u refering to the d16a1? which is bascially the zc only it wont really bolt into anything except 1987 and prior cvici/crx's? if so, thats sweet. way to make use of oem honda materials.

 

it is definately worth it.....do the swap and then go turbo....then you can go spank some v/8 ***...

 

we have a mini me in my friends car.
picked up a lseeved d16a6 block from JG for cheap (less than 400 shipped) i guess it was left over form a customer or soemthing.
put soem wideo Polydyn coated psiutons in for $405, eagle rods for 325, then new oem bearings, then the rest of the stock stuff, used a d16z6 head to top it off til the jg ported head is repaired to go on. the block was the most expensive part but even it was a steal.
now if the original builder had not put the wrong sized rod bearings in it would be costing less than a b16a swap to buiuld and be able to handle a LOT of boost.

 

I disagree on using a 1.5L block for the VTEC set-up. IMO if you're going to limit yourself to SOHC engines at least get the best one you can, which is the 1.6L version.

If building an engine is out, then I'd say find a complete OBD1 VTEC Zc engine and swap it in and be done with it.

I'm not a big fan of the 1.5L VTEC engines regardless of who built them.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C5-EH2 &raquo;</TD></TR><TR><TD CLASS="quote">
I'm not a big fan of the 1.5L VTEC engines regardless of who built them.</TD></TR></TABLE>

Thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C5-EH2 &raquo;</TD></TR><TR><TD CLASS="quote">I disagree on using a 1.5L block for the VTEC set-up. IMO if you're going to limit yourself to SOHC engines at least get the best one you can, which is the 1.6L version.

If building an engine is out, then I'd say find a complete OBD1 VTEC Zc engine and swap it in and be done with it.

I'm not a big fan of the 1.5L VTEC engines regardless of who built them.</TD></TR></TABLE>

meh,
my d15b rips and thats all i know,
i'd take it over a z6 anyday.

but thats stock for stock internally of course,
i'm sure that extra displacement comes in handy when you're building it up for MAX POWA!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BauleyCivic &raquo;</TD></TR><TR><TD CLASS="quote">You won't smoke a GSR with a mini me</TD></TR></TABLE>

true but a sohc with a good turbo kit should put more hp and torque down than any stock b series

 

going to stay NA or gonna TurboD it? For some reason im intrigued by all the D series builds their not as common as DOHC builds , i wanna build one after im done with my project. gl

 

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

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

Meaning even if Honda built it or not. I'm not trying to offend anyone with a mini-me guys, so please don't take it so personally.

In your specific situation it was a better idea because you already had the D15B7 block, but in thid case why buy another 1.5L block if he can upgrade to a 1.6L for the same or possibly cheaper?

 

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

Please shut up.

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


ok

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BauleyCivic &raquo;</TD></TR><TR><TD CLASS="quote">You won't smoke a GSR with a mini me</TD></TR></TABLE>

if i had a minime in my car, with all the boltons,
I think i could take a gsr integra with some boltons.

 

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


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

hawr hawr!

i think tom some1 hurt some1's feelings