i have got a D15B VTEC i would like to know if Vitara pistons will fit in this block ?
will i have to over bore?

What vitara engine will the pistons have to come from?

i am thinking about turbocharging my civic and i have a few options , either turbo D15 with vitara pistons and other goodies. B20VTEC turbocharged with few goodies. or F22 VTEC and turbo that ( how good is the F22 anyway. i never knew about it until i saw it with my own eyes, it is a 2.2 SOHC VTEC. How much power and torque does this produce?)

what do you guys suggest i do?

 

turbo the stock motor and have some fun just really depends on your HP goals

 

the pistons will fit since the d15 is also a 75mm bore.. but i dont know what the cr will be on that motor..

If you want pistons let me know..I sell them.
For ease of build up i would get a d16 block..I think d15s have a different stroke so getting good rods that will handle bigger power goals will be either hard..Or expensive.

 

vitaras will stick out the block on a D15.

 

there you go... thats why i say its better to get a d16 bock

 

damn that sucks. is the D15 stroke that long that the pistons will not work

 

no its the fact that the d15 has a shorter deck height than a d16.

 

can any other pistons work in the D15 ?

 

YES, use the compression calculators.

 

How much will the Vitara pistons stick out of the D15 block ?

 

Enough to hit your head... Get a D16 block for $50 if you really want to build a D, the D15's are pretty useless. Just turbo the stock motor if you dont want to wait.

 

i am not in the US where motors are easy to come by.

so i was just wondering if there was anyway to make it work
Thanks

 

just to clear it up, the vitara pistons will not stick out of the block in a jdm d15b. the d15 rods are the same as the d16 rods, it just has different pistons. there is a guy on turbod16.com that has done a jdm d15b build (a few more are in the process) with vitara's and he calculated the compression ratio to come out to be around 9.4-1 which is not bad. the vitara's sit below the deck in the d16 and yield like low 7.8or 8.0-1 compression, but not in the d15b. the vitara pistons are pretty much the lowest cost and the only way to build a d15b vtec that i have found. over this winter, i plan on building my d15b vtec with tunertoys rods and vitara pistons.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eg6madness &raquo;</TD></TR><TR><TD CLASS="quote">i have got a D15B VTEC i would like to know if Vitara pistons will fit in this block ?
will i have to over bore?</TD></TR></TABLE>

ASSuming you go D16 like everyone else tells you... or try to fit some wierdass combo of milled + bushed B16 rod (keeping stock D15 at that point is stupid, and the D16/D15B is too long) and Vitara into your D15B (if that would even work, I've not done the math just dreaming outloud here)... then:

I recommend you overbore, I get a little worried about engines that skirt slap after reman... STD Vitara's are a few hundredths smaller than STD D16 pistons.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eg6madness &raquo;</TD></TR><TR><TD CLASS="quote">
i am thinking about turbocharging my civic and i have a few options , either turbo D15 with vitara pistons and other goodies. B20VTEC turbocharged with few goodies. or F22 VTEC and turbo that ( how good is the F22 anyway. i never knew about it until i saw it with my own eyes, it is a 2.2 SOHC VTEC. </TD></TR></TABLE>

D-series with their small bores can be volatile unless you yank enough ignition timing. Cheap as hell, and robust in a certain power range if you get them dialled in right.

B20B/Z blocks with their siamesed bores suck *** for reliable power. Avoid.

JDM F22B is a very stout engine, and big bore to boost with says lots about their power production capabilities. They are reputedly, according to the Accordheads I talk to, good to 300-350 whp. At that point, I'm pretty sure it's crank breakage time like everything else F/H that's not balanced like the H22 or F20B. Shame F/H transmissions are steaming piles of feces; H2B conversions are a bit more expensive than they are worth.

Hey, I could talk all day. What's the fastest thing you've ever owned, and what power # are you shooting for? Between those two things, it's pretty simple nailling bang for buck.

 

They just fit. I am running this combo right now with LS rods and a 3 layer OEM headgasket.

Compression is better than the D16. It's around 9.1:1 ish. I think vitaras in a d16 is waste. They should only go in D15B. Period.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by F20Cteg &raquo;</TD></TR><TR><TD CLASS="quote">

Compression is better than the D16. It's around 9.1:1 ish. I think vitaras in a d16 is waste. They should only go in D15B. Period.

</TD></TR></TABLE>
HA!!!!! Tell that to JFK's ride who has a d16 and runs 11's on street tires and traps 126mph with his vitara setup...there are some other d16 vitara setups showing up with 11sec runs as well...

Sorry i cant provide more info about the vitaras and d15.. i built a d16 so i dont have the experience with the d15.

 

what is you setup F20Cteg?

how much boost?