The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

Wait a minute... 140-160

uid 37336's pic
posted by  B20Paul. on  Wed Jan 31 07:30 CST 2007
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon Oct 20 10:54 CST 2014
[RELATED]

What sort of pistons is he getting? I'd think he'd need something with a big D-shape bowl in it or a reverse dome to get the compression down.

longer rods will make the engine more "ping" resistant and let him run less overal ignition timing.

How do they do that?

the shorter pin to deck height will make a more stable piston and cut down on bore wear.

Bore wear has never been a problem with stock stroke & stock rods.

the longer rods will have less side load on the crank.

Not measurably.

I wouldn't be in any hurry to toss out the stock rods or stock crank, especially in the B30. Firstly, you can't reduce the size of the crankpin in a B30, like you can in a B20. Secondly, long rods don't help power at all until the cylinder head reaches it's limits in an NA motor, so increasing the rod ratio in a turbo motor is going to give away power under 3500 & never give it back because you just can't rev the B30 up that much without it bending.






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.