[wiledwhitecivic]

Sounds like he let you off easy. I was impounded, arrested, court fees, community service, 1 year driving probation. Close to $500.00
Build looks good, Nice work. I like the combination for DD pump nos or boost.

 

[wiledwhitecivic]

You could do the fjt usdm d15 h-beam vitara set up because the z1 crank is like a b7 crank.

Or run d15a2 rods custom prepped like my b7/z6 mini me build with some kind of stock piston of your choice.

 

[wiledwhitecivic]

Cool info! I had no clue of the Z1 and B7 cranks being almost the same. Well in that aspect it would seem to me that your second choice of attack is the best for my " Budget minded fun build " safeguarding the bottom end for 250 whp It's too bad they're not like the jdm d15b crank.

"I might just use the leftover OEM's from the Z6 block for my D15Z6HNM on those D15a2 rod's you suggested of course after they receive some TLC." If you can find a machine shop willing to press off the stock pistons without breaking them, more power too you. My local shops won't do it.

"If you dont mind my asking , what was needed to have done to the D15a2 rods in order to make them work on the B7 crank?" Nothing really needed except for different pistons. And you can still find these old civics in junk yards because no one wants the engines in them. D15a2-a3

"so in theory the downfall of me throwing together the D15a2 rods + D16Z6 piston's while using the Z1 cam + ECU & o2 would make for a very unhealthy motor????" R/s Ratio I don't know if ok or not, quench-slightly worse, compression-better than you have now but similar. A little stronger hopefully than z1 tooth pic rods.

"Maybe when i finish building the Mini LS Vtec i'll just pull the D15Z6HNM out as is & keep it in the garage so i can say i have a extra running Hybrid Nitrous/Boost Motor laying around."
From my example, it would be good idea to keep a spare engine ready to go when you start modding like this when running nos or boosting, just in case.
Chris91CiVX

I blew my vitara build from over heating the oil and needed to put a compromise engine together to get me by.
A kid payed me with a junky d15a2 bottom end for some work last summer. I was going to try and use the crank in a random b7 empty block but the main journal diameter size was between the d15 d16.
The rods were slightly thicker than d16 rods. The large and small ends were the same as b7 rods. Also 134mm long.

An OG member said they might be thicker but weaker like the 86-87 d16a1 rods. Lets hope to God that isn't true because it held 24lbs with the ebay 54 trim during the tunning session.
I can't say it was worth the cost because I'm into it $600 for the rebuild including a retune on a supposed budget build. The fjt b7 h-beam vitara set up that's not available yet, inspired this build.
Traded my old exhaust for a good core b7 engine
Arp rod bolts
Resized and balanced the rods
Micro polished the crank and chamfer the crank oil holes
Deck the head and block .009" in total.
Ebay set of new z6 knock off pistons with npr rings.
Instillation costs of pistons on the rods.
MLS HG.
Cryo the crank, pistons, rods, rod bolts, bearings for that extra 100hp over a stock d16 rod amount.
Some stuff I didn't need to do, but the cryo treater jacked up the price to do the rods this year from last year on some one else but threw in the crank also, for only a little more.

 

[wiledwhitecivic]

I'm sure you know but if you have a way to pull some timing and make the upper end rich for the nos engagement through tuning you should be fine with a 35 shot.