D15b vtec pistons that don't require boring the block?
#1
Honda-Tech Member
Thread Starter
Join Date: Aug 2016
Location: Baton Rouge, LA
Posts: 7
Likes: 0
Received 0 Likes
on
0 Posts
D15b vtec rod/piston combo that doesn't require boring the block?
I bought a '95 Civic coupe with a JDM d15b vtec swap in it and I plan to turbo it on stock internals first and then build the motor when I get all my parts together. I've done A LOT of research and it seems as though to run certain aftermarket forged pistons and rods, I have to have the block bored out for clearance or have a custom set of rods/pistons made. I'd rather not have to bore out the block because the car is my daily driver and I'm not looking for anything crazy fast; just something quicker and more fun to drive so does anyone know any piston/rod combo I could run without having to bore out the block? I've seen a lot of people use Vitara pistons, but I think they knock or scrap against something if you don't notch the block. Does it actually sounds that bad if you don't notch the block? Are there actually any pistons/rods I could use without having to bore the block? Any suggestions or ideas anyone?
Last edited by TheShodan; 09-12-2016 at 05:38 PM.
#2
Moderator
iTrader: (14)
Re: D15b vtec pistons that don't require boring the block?
No. you have to at minimum bore the block to at least what works minimally with the piston-ring gaps of the new aftermarket pistons. Even if you hone it to work, you still need the machine shop.
Bottom line, if you want to boost, you have to pay... (or have the resources to do it yourself, your choice).
Bottom line, if you want to boost, you have to pay... (or have the resources to do it yourself, your choice).
#3
Honda-Tech Member
Thread Starter
Join Date: Aug 2016
Location: Baton Rouge, LA
Posts: 7
Likes: 0
Received 0 Likes
on
0 Posts
Re: D15b vtec pistons that don't require boring the block?
No. you have to at minimum bore the block to at least what works minimally with the piston-ring gaps of the new aftermarket pistons. Even if you hone it to work, you still need the machine shop.
Bottom line, if you want to boost, you have to pay... (or have the resources to do it yourself, your choice).
Bottom line, if you want to boost, you have to pay... (or have the resources to do it yourself, your choice).
#4
Man U FTW
Re: D15b vtec pistons that don't require boring the block?
Cylinder overbore - Unless the cylinders are perfect, you'll want to do a mild overbore to ensure proper fitment, Piston-to-wall (p2w) clearance, etc.
Block Notching - If you run an H or I beam aftermarket rod in a D series, you'll have to notch the block. If you were to skip this step, it doesn't "sound bad", it simply won't turn over as the big end of the rod will hit the inside of the crankcase and possibly the main girdle.
You can notch the block yourself at home with simple tools like a Dremel: Block Notching - D-series.org
Block Notching - If you run an H or I beam aftermarket rod in a D series, you'll have to notch the block. If you were to skip this step, it doesn't "sound bad", it simply won't turn over as the big end of the rod will hit the inside of the crankcase and possibly the main girdle.
You can notch the block yourself at home with simple tools like a Dremel: Block Notching - D-series.org
Thread
Thread Starter
Forum
Replies
Last Post
2JZGod
Engine Machining & Assembly
4
09-22-2016 09:49 PM
crazyitr
Honda Civic / Del Sol (1992 - 2000)
13
12-26-2003 11:01 AM