To balance, or not to balance...opinions on ls/vtec
01-19-2007, 11:06 PM
#11
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Re: To balance, or not to balance...opinions on ls/vtec
Originally Posted by Joseph Davis
If you can afford the pistons, I have three perfectly good LS Eagles you can have. Ben at importparts.com, or better yet Craig at Tunertoys, can get you the fourth for $80-85 shipped.
That I can handle...next would be best choice of piston manufacturer. Everyone seems to have their own opinion on which one's better...I want real world facts, not some internet mechanic's babblings. 
01-19-2007, 11:09 PM
#12
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Re: To balance, or not to balance...opinions on ls/vtec
If SRP has cleaned up their act like everyone has said in the past few years, go TT.
Uhm, I have STD size 81mm Probe pistons, should bet 9:1 CR, need rings, NIB that I won't need since I now have an 84mm block. The only problem with them is they come with the lightweight wristpins that have breakage problems... but the normal weight ones can be had cheaply. I dunno if you're in the mood to go turbo with this engine, are you?
Uhm, I have STD size 81mm Probe pistons, should bet 9:1 CR, need rings, NIB that I won't need since I now have an 84mm block. The only problem with them is they come with the lightweight wristpins that have breakage problems... but the normal weight ones can be had cheaply. I dunno if you're in the mood to go turbo with this engine, are you?
01-19-2007, 11:13 PM
#13
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Re: To balance, or not to balance...opinions on ls/vtec
Originally Posted by Joseph Davis
If SRP has cleaned up their act like everyone has said in the past few years, go TT.
Uhm, I have STD size 81mm Probe pistons, should bet 9:1 CR, need rings, NIB that I won't need since I now have an 84mm block. The only problem with them is they come with the lightweight wristpins that have breakage problems... but the normal weight ones can be had cheaply. I dunno if you're in the mood to go turbo with this engine, are you?
Uhm, I have STD size 81mm Probe pistons, should bet 9:1 CR, need rings, NIB that I won't need since I now have an 84mm block. The only problem with them is they come with the lightweight wristpins that have breakage problems... but the normal weight ones can be had cheaply. I dunno if you're in the mood to go turbo with this engine, are you?
If boost is crack, then I'm ready to get high man! 
BTW...where the hell do you get all this stuff? lol
01-19-2007, 11:24 PM
#14
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Re: To balance, or not to balance...opinions on ls/vtec
People give me things because they love me.
Make offer on the pistons, 1302-11885-STD is the part number.
There's a chance the 4th Eagle is perfectly fine, BTW, the piston attached to it (as well as head) is FUBAR from the intake valve heads popping off, but the block walls weren't so much as scratched by the carnage. I can tell more when I tear it down; primarily from condition of upper rod bearing half, and then mic'ing the big end.
Make offer on the pistons, 1302-11885-STD is the part number.
There's a chance the 4th Eagle is perfectly fine, BTW, the piston attached to it (as well as head) is FUBAR from the intake valve heads popping off, but the block walls weren't so much as scratched by the carnage. I can tell more when I tear it down; primarily from condition of upper rod bearing half, and then mic'ing the big end.
01-19-2007, 11:44 PM
#15
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Re: To balance, or not to balance...opinions on ls/vtec
Originally Posted by Joseph Davis
People give me things because they love me.
Make offer on the pistons, 1302-11885-STD is the part number.
There's a chance the 4th Eagle is perfectly fine, BTW, the piston attached to it (as well as head) is FUBAR from the intake valve heads popping off, but the block walls weren't so much as scratched by the carnage. I can tell more when I tear it down; primarily from condition of upper rod bearing half, and then mic'ing the big end.
Make offer on the pistons, 1302-11885-STD is the part number.
There's a chance the 4th Eagle is perfectly fine, BTW, the piston attached to it (as well as head) is FUBAR from the intake valve heads popping off, but the block walls weren't so much as scratched by the carnage. I can tell more when I tear it down; primarily from condition of upper rod bearing half, and then mic'ing the big end.
01-20-2007, 07:41 PM
#16
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Join Date: Jul 2006
Posts: 189
Re: To balance, or not to balance...opinions on ls/vtec
Originally Posted by Joseph Davis
All B-series cranks are balanced to 10K from the factory.
That's due to bearing design - you ever notice LS got different bearings from GSR or B16? And the rod out the side of the block deal in high rpm situations is due to breaking across the beam... as LS rods lack the reinforcement where beam joins big end, they are expecially suceptible to breaking when compression downshifting - which the much stouter GSR/ITR rod is known to do occasionally in a completely stock engine.
Or you can drop unbalanced Eagles/Wisecos onto an unbalanced LS crank and rev to 9700 with impunity... at that rpm, all the problems are in the cylinder head.
(slo... do the rod big/small end balances, and the piston balances, ---- the rotating assembly spin balancing as it's already mint)
That's due to bearing design - you ever notice LS got different bearings from GSR or B16? And the rod out the side of the block deal in high rpm situations is due to breaking across the beam... as LS rods lack the reinforcement where beam joins big end, they are expecially suceptible to breaking when compression downshifting - which the much stouter GSR/ITR rod is known to do occasionally in a completely stock engine.
Or you can drop unbalanced Eagles/Wisecos onto an unbalanced LS crank and rev to 9700 with impunity... at that rpm, all the problems are in the cylinder head.
(slo... do the rod big/small end balances, and the piston balances, ---- the rotating assembly spin balancing as it's already mint)
I was under the assumption that he was to be using factory parts.
As I had done with my CTR pistons, LS rods, LS crank.
01-21-2007, 12:44 AM
#17
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Re: To balance, or not to balance...opinions on ls/vtec
Originally Posted by Sepheroth86
I was under the assumption that he was to be using factory parts.
As I had done with my CTR pistons, LS rods, LS crank.
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