Whats up guys I was looking for information on eagle rods for my d15b7. Searched alot and got good info but couldn't find any part numbers or even if this is the best choice for boost, just that the stock rods will snap like toothpicks. Any info I can get is appreciated thanks.

 

Crower is the only company I know of that make aftermarket rods the d15b7. It isn't cheap either. For the price you're better off getting a d16 block and just get the eagle rods. It still be cheaper too.

 

little to no selection of parts on the d15 blocks. the only one is the crower, but thats if they even still stock it. its a very rare motor that is built up so I doubt they are stocking that on the shelf. only other option if you really want to do a d15 is a custom rod.

Cheapest way is to get a d16 block and work on that. more off the shelf stuff for the 1.6

 

$120 D-series oil pump
$75 D-series gaskets
$130 Vitaras
$300 Eagle rods
$75 ACL bearings
$150 Hone/deck/clean block & head
____
$850 for a basic cheap build


Add a D16 block/crank to the mix & sell/recycle the D15 (say +$100 overall), and you increase price by only ~12%. For that you get ~7% more displacement, a cheaper overall build since you can't get D15 rods at that price, and higher compression because Vitaras+D15= very low CR.


Please let me know why you want to build a D15 so bad. There are very few people actually willing & capible to build a D-series head to the point that you WILL need that extra reving capability the D15 theroreticly will give you.

 

I just changed out my friends engine for him for a used one, so I got the engine for free and I just thought it would be kinda cool to do turbo D15B, especialy since it can be done so cheap.

 

I have a turbo d15b7 in my DD but would never build it...I got the motor for free...and like everyone is saying the parts are very hard to find....and if found very expensive....just go with a d16 cheaper to build easier to find parts for...and if somthing happends and the motor breaks..than you can rebuild it again

 

well if you wanna wait about another month or so FJ Distributors is going to have rods availible for it and they will be cheap, along the price of eagles and ones specifically for Vitaras, so they are longer thus increasing your R/S ratio and making it an even better revver than it already is. Thats what id do if i were you. Get in contact with them either through their website, D-Series.org or onecamonly.com

 

Wow that sounds awsome, ill check them out. Cause the whole reason for this is because I already have the motor...or I would rather buy a b18 or b20 to turbo thanks for the info.

 

I looked at that fj distributors web site and they are sayin that there forged rods are for the jdm d15b...kind of a newb when it comes to D series, do the motors use the same rod length, D15b7 and the jdm D15b? Also I thought the jdm D15b was a vtec motor where my motor is not, will that make a difference?

 

well they are not listed on their site yet because they are not out yet lol. Thats why i said check ut d-series.org or onecamonly. The JDM rods are the length og D16 rods with but fit a d15 crank. Ideally a JDM D15 crank in a b7 block would really open up your options. There is a non-vtec and vtec D15B but you dont need to worry about that. Just get in contact with them to find out more

 

I am doing the Vitaras in my d15b7. Expected 8.5-8.6:1 CR along with my Garrett t3/t4 turbo kiti picked up new for $120! i hope for decent numbers...

I did the Z6 OBD1 Vtec head on the D15
(I am also looking for some strong rods for the D15)??

My whole list of parts totaled up to about $900 thats with the rebuild.

Many people out there hate on the d15s and d16s because there SOHC motors.
My friend at his shop just finished a 460whp D15z6 with a Garrett turbo pushing around 24psi thats a BUILT SOHC HONDA MOTOR!

 

so where are you getting your D15B7 rods from? i know that the FJT rods arent available yet.

 

I just did a mini-me swap in my del sol with a completely stock block that ran perfect with 245k miles, with a fully built head and id like to turbo it. But id definitly want some sort of forged rod in there before i do.

Also, d15 blocks have shorter stroke which is why it would be desirable for racing applications. It can always be bored out to help make up for the displacement.

 

so how far do you plan to bore out your D? there is only so much space between the sleeves as it is.

so, lets say you drop the loot on a sleeved block... are you REALLY going to do D and limit yourself to a 78mm bore?? if im sleeving something its a K24.

 

Well my "friend" has a customer's car he retuned from a 300whp GT28RS setup to a 400whp GT30R setup, and it gained less than half a second in the 1/4 mile due to the turbo always falling out of boost. That's about as fast-spooling as a turbo you'll find for 400whp. I'm not hating as I own a d16 myself, but there are better ways to spend money at that power level.


A "race" d15 becomes very expensive VERY fast vs a B16 at the same high rpm, high HP levels. It's expensive to add displacement via bore, expensive to re-gear the trans for high RPM, expensive to get the head to flow much, and won't break parts due to torque even as a 1.7L stroker. Again, there are better ways to spend money. FYI RPM is popular in foreign contries where they tax your car based on displacement.


Don't let this discourage you, but don't be disappointed when you compare your build cost to your dyno sheet...

 

its just a project that i plan to see through. i know boring wont make a HUGE difference but itll help a little. im currently in college for auto tech and im learning to build it myself. ive learned my lesson about paying other people.

and id like to research some ways to use a b16 transmission on my d. i think that would make a mini-me swap well worth it. i know d to b tranny swaps have been done before i just cant seem to find any guides or conversion bracket specs or whatever.

also i plan on yielding about a 10:1 CR and put about 10, maybe 15lbs of boost.