After blowing my relatively new (47,xxx miles) D15B through means of a good turbo kit, I'll never do it again. I was only running 5-6lbs of boost, and that lasted only 3 weeks of rarely driving. And I never drive my cars hard either. Goes to show you how bad the rods are in those engines. So for a little advise, I suggest doing a lot of bottom end upgrading before anything. Strictly all motor for me.
D15B(JDM) Vs D16z6!
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RoughKnight
Christmas Car
to be honest...if your looking for a solid dd, the d15b is nice because it will save u money on gas and have a slightly higher output than the z6. BUT...
If your looking for more than 9lbs of boost or 200hp...game over. There are no aftermarket rods for the d15b, and as to date a engine tech on Honda Tech still cannot find a piston that is mass produced that fits onto our rods, so thats a no go too. Bottom line
DD or slight boost: d15b
More than 200-220hp: go with the z6
I'm starting to think I shoulda went with the z6, but im' still gonna turbo the fk outta my motor
If your looking for more than 9lbs of boost or 200hp...game over. There are no aftermarket rods for the d15b, and as to date a engine tech on Honda Tech still cannot find a piston that is mass produced that fits onto our rods, so thats a no go too. Bottom line
DD or slight boost: d15b
More than 200-220hp: go with the z6
I'm starting to think I shoulda went with the z6, but im' still gonna turbo the fk outta my motor
K2e2vin
Senior Member
Parts for the D15B short block are different; mainly the crankshaft and piston.
For performance, I'd go for the D16Z6 because it's pretty much the same motor with larger displacement(stock, horsepower is actually about the same but the D16Z6 has more torque/low-end hp). If you want drop-in reliability, D15B VTEC because most JDM motors have much less mileage than a used USDM D16Z6.
btw, I'm currently building a D15B VTEC; goal is 170whp NA.
For performance, I'd go for the D16Z6 because it's pretty much the same motor with larger displacement(stock, horsepower is actually about the same but the D16Z6 has more torque/low-end hp). If you want drop-in reliability, D15B VTEC because most JDM motors have much less mileage than a used USDM D16Z6.
btw, I'm currently building a D15B VTEC; goal is 170whp NA.
h22a91civichatchswap
New Member
like the fact you're building an under dog engine hope your build goes well and your goal is met i personally like the D15B 3 stage Vtec engine myself
RoughKnight
Christmas Car
Are you getting the custom b16a2 rods for your build k2e2vin?
A good friend once told me
"Going N/A is the expensive way to go slow"
A good friend once told me
"Going N/A is the expensive way to go slow"
K2e2vin
Senior Member
That's Honda's rated chp. D15Bs and D16Z6s usually dyno around 105whp.
Are you getting the custom b16a2 rods for your build k2e2vin?
A good friend once told me
"Going N/A is the expensive way to go slow"
No, I'm using Crower B18 long-rods with CBR1000RR pistons. NA may be slower than boosted, but it takes more work and research to extract power. Hard way, yes, but you learn more in the process. Plus, this car is being built for road course/handling so the low torque makes it easier to drive. Not to mention, a lot of wheelspin in boosted FWD.
civic94cpe23
New Member
Looks like I am gonna go for the d16z6. Do any of you recommend any online JDM websites to buy the motor from? I have searched local and i havnt been able to find one. Or is there some one on here that wants to sell one with lower mileage?
RoughKnight
Christmas Car
wat
one of the members made a post saying the d16z6 had more hp power in stock form. but he edited it after i posted in with the numbers
civic94cpe23
New Member
If I could find a low mile d16 local I could probably get a deal. But it looks like I may have to order it from a JDM site and most that I seen so far are about $ 1000..
Most are JDM motors are what like 30-45k Mileage wise right?
Most are JDM motors are what like 30-45k Mileage wise right?
civic94cpe23
New Member
Yes I did... I left a message .. Thanks alot for that.
civic94cpe23
New Member
Well I did not have any luck yet in finding a motor. But I am going to pull the D15B7 motor out soon. Plan on just unloading it for what ever cash I can get. I was thinking about throwing it on craigslist for 150 any one think i'll get that?
I'll keep every one updated and i'll make a new thread once I start the work.
I'll keep every one updated and i'll make a new thread once I start the work.
civic94cpe23
New Member
Yea the thing runs greats... its got 174k and I want a vtec now lol. But hell ya what ever I can get toward the swap is good for me.
So you guys ready to spend a few days in the garage with me??? haha
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