I am bored and was just curious how much displacement would be possible on a d series i have a turbo d so im not planning on doing any of this so dont flame, but im just curious of what any of you guys have seen....


Modified by dornon13 at 10:13 PM 3/19/2005

 

i think i saw a 1.9L d series, sleeved and stroked, maybe you could go bigger??? other than being super sleeper about it i really dont think it would be worth putting that kind of money into an sohc

 

not talking about money just a discussion thread good stuff though

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dornon13 &raquo;</TD></TR><TR><TD CLASS="quote">not talking about money just a discussion thread good stuff though</TD></TR></TABLE>

ya i know, i think it would be pretty cool to have a huge sohc, stamped with d16 lol......im sure anything could be done if you have deep enough pockets

 

Could bring up the discussion about the newer D17 sohc block in the 7g civics.

 

yeah, i have no info on them...all i have heard is they are difficult to turbo..i dont remember the reasoning though

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18TurboEF &raquo;</TD></TR><TR><TD CLASS="quote">i think i saw a 1.9L d series, sleeved and stroked, maybe you could go bigger??? other than being super sleeper about it i really dont think it would be worth putting that kind of money into an sohc</TD></TR></TABLE>

Why not?

190-200whp fully built, run ZC gears and a 4.9, weighs a lot less than a B series.

Just because it has little power stock and has one cam versus two doesn't mean it can't make good power.

 

Offset ground D16 crank = 93mm, take it from there

 

Offset grinding isn't something I would do on a street car.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Aquafina &raquo;</TD></TR><TR><TD CLASS="quote">Offset grinding isn't something I would do on a street car.</TD></TR></TABLE>

Why is that?

Youd be going to a D15 journal size that has been plenty reliable to well over 100K miles in many D15's. You would more than likely be re heat treating the journals to OE hardness. The bearing widths would stay the same.

Not really any downsides.

 

sweet i dont know anything about all motor D i dont even know a whole lot about all motor stuff in general...whats the highest whp ALL MOTOR D you guys have seen

 

Lots of stock D15's are driven to 100k+. Doesn't mean they are built with a lot of power and have the **** beat out of them.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Aquafina &raquo;</TD></TR><TR><TD CLASS="quote">Lots of stock D15's are driven to 100k+. Doesn't mean they are built with a lot of power and have the **** beat out of them.</TD></TR></TABLE>

beat the **** outta any motor low or high horsepower and see how long it lasts...properly built and maintained motor will last long time...high or low horsepower

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Aquafina &raquo;</TD></TR><TR><TD CLASS="quote">Lots of stock D15's are driven to 100k+. Doesn't mean they are built with a lot of power and have the **** beat out of them.</TD></TR></TABLE>

Explain why it would be unreliable then?

This Im assuming coming from somone speaking from experience with an offset ground D series crank?

The fact of the matter is, it is perfectly reliable. There are 300+WHP B and H series motors running the D15 journals as well as several mid 200 WHP street cars.

 

I never said it wouldn't be reliable. I'm not up for discussing my reasons why.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dornon13 &raquo;</TD></TR><TR><TD CLASS="quote">I am bored and was just curious how much displacement would be possible on a d series i have a turbo d so im not planning on doing any of this so dont flame, but im just curious of what any of you guys have seen....


Modified by dornon13 at 10:13 PM 3/19/2005</TD></TR></TABLE>

If you are going to turbo, increasing displacement is not a good idea. Especially on a D-series motor (which is already quite weak internally to begin with). Resleeving to outrageously large bores is going to make for weak cylinders. And stroking an already stroke-heavy D-series motor is going to put HUGE side loads on those cylinder walls. Your best bet: stay with stock displacement. With boost, increasing displacement is not NEARLY as important as it is with allmotor applications.

Of course, if you are just curious, 78mm seems to be about the maximum you can go on bore diameter. And you probably don't want to go much bigger than 95mm on the stroke. Even this is quite large.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dornon13 &raquo;</TD></TR><TR><TD CLASS="quote"> im not planning on doing any of this </TD></TR></TABLE>

i said im not doing this...i have always just wondered the limits

 

Thats right. Resleeving uses sleeves as weak as the factory sleeves and more displacement on any power adder doesn't add torque.

Max bore for a D series is 81mm race or 79 street (recommended as max bore for street).

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Aquafina &raquo;</TD></TR><TR><TD CLASS="quote">Thats right. Resleeving uses sleeves as weak as the factory sleeves</TD></TR></TABLE>

Unless Honda started using ductile iron with out telling anyone this statement would be untrue

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Aquafina &raquo;</TD></TR><TR><TD CLASS="quote">Thats right. Resleeving uses sleeves as weak as the factory sleeves and more displacement on any power adder doesn't add torque.</TD></TR></TABLE>

Actually the sleeves typically used for resleeving are alot stronger than stock sleeves. But when your bore diameter starts to get big, the sleeves start to get thin, and therefore, weak.

 

Oops, /sarcasm.