Go Back   Honda-Tech > Honda and Acura Technical Forums > Forced Induction
Sign in using an external account
Register Forgot Password?
Search


Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
Old 12-05-2002, 12:00 AM   #1
Honda-Tech Member
 
Join Date: Feb 2001
Location: Clearwater, FL, USA
Posts: 2,503
iTrader Rating: (0)
Default Forged pistons on stock rods?

I'm buying a set of Wiseco pistons (turbo version for B18A/B/C). I've read that the piston is the weakest link, so I'm upgrading that and I think with proper tuning and good maintenance, the stock rods should be okay (250-300hp). Would there be any problems mating the pistons to the stock rods? Is there any modification that's needed?

Also, could someone give me the compression these will give in a LS longblock? I've tried to use the compression calculator, but couldn't find the cc's on the pistons. I thought it was -12cc but that gave something like a 8:1 compression ratio.

Thanks.
specie is offline   Reply With Quote
Old 12-05-2002, 02:01 AM   #2
filetofit
Guest
 
Posts: n/a
Default Re: Forged pistons on stock rods? (specie)

You'll need to have the wristpins pressed out of the stock rods/pistons and then have the new pistons fitted onto the new wristpins and old rods. They use a special jig to install them that heats the **** out of the small end of the rod so that it expands enough to fit around the wristpin, then when it cools, voila, interference fit. I was told by my shop that you wont need the wristpin retaining clips since the wristpin is very securely held by the small end of the stock rod. The clips are used with a bushed (floating) small end type rod like Eagles. I didn't use them but it probably doesn't matter since you'll have plenty of wiggle room for the big end to float on the crank either way.
  Reply With Quote
Old 12-05-2002, 03:44 AM   #3
Honda-Tech Member
 
Join Date: Feb 2001
Location: Clearwater, FL, USA
Posts: 2,503
iTrader Rating: (0)
Default Re: Forged pistons on stock rods? (filetofit)

Does the interference fit add much stress to the rods? Is it substantial enough to weaken the rods?

So no modification necessary to the rods?
Thanks.
specie is offline   Reply With Quote
Old 12-05-2002, 12:26 PM   #4
filetofit
Guest
 
Posts: n/a
Default Re: Forged pistons on stock rods? (specie)

It does add stress but that's the OEM design. It's not just that you have the interference fit with aftermarket pistons and stock rods, OEM pistons and rods are the same way. I'm sure Honda took the interference stress into account when they designed the rods.

No modifications to the rods are necessary.
  Reply With Quote
Old 12-05-2002, 01:50 PM   #5
Honda-Tech Member
 
Join Date: Feb 2001
Location: Clearwater, FL, USA
Posts: 2,503
iTrader Rating: (0)
Default Re: Forged pistons on stock rods? (filetofit)

Thank you sir.

Does anyone know what compression these pistons will yield in a LS longblock?
specie is offline   Reply With Quote
Old 12-05-2002, 02:31 PM   #6
Smarter than you
 
DIRep972's Avatar
 
Join Date: Apr 2001
Location: Third Coast, united states
Posts: 8,245
iTrader Rating: (1)
Default Re: Forged pistons on stock rods? (specie)

why go threw all the trouble of fitting the pistons on stock rods and worrying if it will hold the power or not when u can just get some barely used eagle LS rods for very cheap. I have some forsale PM me.
__________________
Chris Stein
Crew Chief - Team Arturbo - 10.006 @ 149.2

www.Arturbo.com
www.fast-turbo.com 817-439-3748
www.t1racedevelopment.com 214-607-9022
DIRep972 is offline   Reply With Quote
Old 12-05-2002, 02:55 PM   #7
Honda-Tech Member
 
Join Date: Feb 2001
Location: Clearwater, FL, USA
Posts: 2,503
iTrader Rating: (0)
Default Re: Forged pistons on stock rods? (DIRep972)

Originally I was just going to go on a stock block and just boost it for about a year and I won't really care if a stock ls block is blown. A stock ls block can be had for the price people pay for forged rods or pistons. With pistons, rods, the motor is still not bulletproof.

However, I think I've found a good deal on a set of forged pistons and since the pistons are the weakest link, I'll feel a little bit more comfortable about boosting.

To sum it out: I don't have much $$$$. Broke student trying to make a quick car===bad combination

I'll pm you though, if it's a good deal, I might be able to take them off your hands.
specie is offline   Reply With Quote
Old 12-05-2002, 03:28 PM   #8
 
Vanilla Ic3's Avatar
 
Join Date: Oct 2002
Location: VIP, Posse, usa
Posts: 231
iTrader Rating: (0)
Default Re: Forged pistons on stock rods? (specie)

With all the picts of broken ringlands I've seen, I think you have the right idea. If your goal is less than 300 you might not need to swap rods. Can anybody running stock rods with over 300hp chime in here with some experiences?
__________________
VIP Posse. [img]http://images.honda-tech.com/set1/smile/emthup.gif[/img]
Vanilla Ic3 is offline   Reply With Quote
Old 12-05-2002, 06:05 PM   #9
Honda-Tech Member
 
*Boostwerks*'s Avatar
 
Join Date: Feb 2002
Location: I heart tool, US
Posts: 9,453
iTrader Rating: (0)
Send a message via ICQ to *Boostwerks* Send a message via AIM to *Boostwerks*
Default Re: Forged pistons on stock rods? (Vanilla Ic3)

Stock honda rods are VERY strong.

If the motor isn't reved past 9000 and tuning is taken care of, the rods can easily take 500+HP (sorry about being vague).
__________________
Boostwerks Speed Shop
www.Boostwerks.com
Check us out on Face Book ---> http://www.facebook.com/Boostwerks
*Boostwerks* is offline   Reply With Quote
Old 12-05-2002, 06:21 PM   #10
Honda-Tech Member
 
Join Date: Feb 2001
Location: Clearwater, FL, USA
Posts: 2,503
iTrader Rating: (0)
Default Re: Forged pistons on stock rods? (Bryson)

Click the image to open in full size. to stock Honda rods.

Can anyone tell me what compression these pistons will yield?


bore: 81.5mm
compression height: 30mm
dome volume: 12cc-
specie is offline   Reply With Quote
Old 12-06-2002, 12:45 AM   #11
Honda-Tech Member
 
Join Date: Aug 2001
Location: manakin sabot, va, us
Posts: 4,083
iTrader Rating: (0)
Send a message via AIM to DLB1994
Default Re: Forged pistons on stock rods? (specie)

stock honda rods good all you need is some arp bolts
__________________
World Class Cycles/Auto Richmond VA www.worldclassag.com
(Retired/94 accord h23 460hp/420tq 20psi 11.44@120mph) ,#projectek 99ek h23a 67mm , 07 Campagna t-rex ,03 r1 turbo,08 turbo busa,08 benz CLS55,03 F250 lifted PSD!
DLB1994 is offline   Reply With Quote
Old 12-06-2002, 10:58 AM   #12
Honda-Tech Member
 
Join Date: Feb 2001
Location: Clearwater, FL, USA
Posts: 2,503
iTrader Rating: (0)
Default Re: Forged pistons on stock rods? (DLB1994)

I have ARP rod bolts on my ls/vtec (revs nicely on top end).

However, I've read that ARP rod bolts are only needed for high rev application. But for about $40, it's not that bad.
specie is offline   Reply With Quote
Old 12-07-2002, 01:52 AM   #13
 
@irborne's Avatar
 
Join Date: Nov 2002
Location: TEXAS
Posts: 998
iTrader Rating: (0)
Default Re: Forged pistons on stock rods? (specie)

how much piston slaps/noice comparing from wiseco pistons to others like (je, arias..etc)?
@irborne is offline   Reply With Quote
Old 12-07-2002, 02:36 PM   #14
Member
 
TeStUdO's Avatar
 
Join Date: Oct 2002
Location: Secret Tweaker Pad
Posts: 3,279
iTrader Rating: (0)
Send a message via AIM to TeStUdO
Default Re: Forged pistons on stock rods? (@irborne)

piston slap isnt bad after the car gets to operating temp. i can barely notice it anymore. props to everyone who gave the stock honda rods credit, if they can use them for a top speed record on the salt flats they can be used in my car.
__________________
eh2 b18c turbo hatch

<FONT COLOR="red">HT My Car Will Never Run Crew Member #005</FONT>
<FONT COLOR="green">Vouch Thread</FONT>

TeStUdO is offline   Reply With Quote
Old 12-08-2002, 10:34 PM   #15
 
@irborne's Avatar
 
Join Date: Nov 2002
Location: TEXAS
Posts: 998
iTrader Rating: (0)
Default Re: Forged pistons on stock rods? (filetofit)

Quote:
You'll need to have the wristpins pressed out of the stock rods/pistons and then have the new pistons fitted onto the new wristpins and old rods. They use a special jig to install them that heats the **** out of the small end of the rod so that it expands enough to fit around the wristpin, then when it cools, voila, interference fit. I was told by my shop that you wont need the wristpin retaining clips since the wristpin is very securely held by the small end of the stock rod. The clips are used with a bushed (floating) small end type rod like Eagles. I didn't use them but it probably doesn't matter since you'll have plenty of wiggle room for the big end to float on the crank either way.
how much would a dealer charge for that work?
@irborne is offline   Reply With Quote
Old 12-08-2002, 10:42 PM   #16
filetofit
Guest
 
Posts: n/a
Default Re: Forged pistons on stock rods? (@irborne)

Don't know about a dealer but a machine shop should be able press out the old pins and install the new pistons on the old rods for about $40.
  Reply With Quote
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
B18 High Compression Pistons racerguy Tech/Misc 6 10-08-2014 08:26 PM
Great Daily Driven Pistons and Rods? Unknown Racing Forced Induction 14 02-21-2009 07:48 PM
Some piston questions about my new build... *Boostwerks* Forced Induction 2 09-26-2005 10:34 AM
Stock B18B1 with CTR Pistons dajman94 Acura Integra 20 06-25-2005 06:29 PM
b18c1 pistons in b18b1 block? ScootinIntegra Acura Integra 4 12-24-2003 12:19 PM


Tags
b18, bushed, cp, forged, good, honda, integra, ls, pistions, pistons, pistonson, rod, rods, stock, turbo

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



Join Honda-Tech.com

All times are GMT -8. The time now is 08:23 AM.



2014 Copyright, InternetBrands Inc.
Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.

Honda and the Honda marquee are registered trademarks of the American Honda Motor Company, Inc. Neither American Honda Motor Company nor its subsidiaries or affiliates shall bear any responsibility for Honda-Tech.com content, comments, or advertising. Honda-Tech.com is not affiliated with American Honda Motor Company in any way. American Honda Motor Company does not sponsor, support, or endorse Honda-Tech.com in any way. Copyright/trademark/sales mark infringements are not intended or implied.
Emails & Contact Details