Re: To lifter bore bushing or not?
[Re: TS3303]
#559962
12/22/09 02:44 PM
12/22/09 02:44 PM
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Joined: Mar 2006
Posts: 9,910 Eighty Four, PA
B G Racing
master
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master
Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
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Quote:
no offense but if it was "done right" it would already be bushed with the proper size oil hole in the bushing. Hopefully the pushrods have the right size hole in them to restrict oil to the top. Right now your at an easy point to make it right and add the bushings or you can gamble with low oil pressure and over oiling the top end. The $4-600 would be a good investment now that it is the off season and you have all winter to re assemble.
This could turn into another pinion angle thread
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Re: To lifter bore bushing or not?
[Re: B G Racing]
#559963
12/22/09 03:00 PM
12/22/09 03:00 PM
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Joined: Apr 2004
Posts: 1,981 SE Michigan
TS3303
top fuel
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top fuel
Joined: Apr 2004
Posts: 1,981
SE Michigan
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Quote:
This could turn into another pinion angle thread
??? why? do you disagree or have no opinion? IMO anything you can do to reduce the amount of oil taken from the mains and rods is a good thing.
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Re: To lifter bore bushing or not?
[Re: TS3303]
#559964
12/22/09 03:12 PM
12/22/09 03:12 PM
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Joined: Apr 2005
Posts: 1,880 USA
Ron Silva
top fuel
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top fuel
Joined: Apr 2005
Posts: 1,880
USA
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Don't bush it and if you use IMM roller tappets you should not have to restrict the oil to the top end either. Because his tappets have the oil feed hole drilled paralell to the axle and the feed is an "edge orfice" design.
SRT DEMON ONE SEAT
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Re: To lifter bore bushing or not?
[Re: TS3303]
#559965
12/22/09 03:13 PM
12/22/09 03:13 PM
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Joined: Feb 2005
Posts: 2,528 Mansfield, Tx
Jacob Pitt
master
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master
Joined: Feb 2005
Posts: 2,528
Mansfield, Tx
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I just plugged the drivers side oil galley so no oil is pushed to that side and more oil stays on the mains/rods. Have over 600 passes like this and recently tore the engine down and every bearing looked great. This motor has a pretty mild cam in it but runs 9.50's@3300lbs in good air in the 1/4. This was a Mopar Mega block with no bushings. I don't feel they are neccesary unless you are uncovering the oil galley at full lift. Sorry just saw that you want to pushrod oil.
Last edited by ChallyL427; 12/22/09 03:27 PM.
2013 NHRA D4 Stock Champ #4 in the World IHRA Stock 2x IHRA Div.4 Stock Champ 14x Track Champ All using a Ultimate Converter Concepts converter. Call Lenny today 704-892-6837
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Re: To lifter bore bushing or not?
[Re: B G Racing]
#559969
12/22/09 04:37 PM
12/22/09 04:37 PM
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Joined: Jan 2003
Posts: 75,088 A Banana Republic near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,088
A Banana Republic near you.
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Quote:
Quote:
no offense but if it was "done right" it would already be bushed with the proper size oil hole in the bushing. Hopefully the pushrods have the right size hole in them to restrict oil to the top. Right now your at an easy point to make it right and add the bushings or you can gamble with low oil pressure and over oiling the top end. The $4-600 would be a good investment now that it is the off season and you have all winter to re assemble.
This could turn into another pinion angle thread
or bearing hacking
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Re: To lifter bore bushing or not?
[Re: Ron Silva]
#559972
12/23/09 09:01 AM
12/23/09 09:01 AM
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Joined: Feb 2003
Posts: 12,675 Columbia, CT
moper
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 12,675
Columbia, CT
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I always bush them just for the oil pressure loss reason. No exceptions. It costs $500. That's 5% of a $10K engine build... Which I would think is a low budget figure depending on the output needed. I know it fixes the lifter bore alignment, and it controls oil in good and bad circumstances. I have not seen a properly done set of bushings worn out. Now I dont do race engines.. so maybe with higher lifts and the required high spring pressures things are different. But once the machining is done for them, popping them in and out is a breeze. I have had friends loose engines because of minor valvetrain failures that resulted in oil pressure loss. There is no cutoff or way to stop the engine fast enough to avoid damage if the engine is in it's power band. IMO you need to prepare for the failure and over engineer it and $500 is nothing on a race engine build.
Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.
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Re: To lifter bore bushing or not?
[Re: galen]
#559974
12/23/09 08:18 PM
12/23/09 08:18 PM
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Joined: Jul 2005
Posts: 8,647 ELYRIA,OH
blownzoom440
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Joined: Jul 2005
Posts: 8,647
ELYRIA,OH
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Quote:
Thanks for the input, I am pretty excited. Going to use the Koleno block and have it bushed before assembly. Merry Christmas guys. Galen
mine is not bushed and wont be.i will keep an eye on how things wear.what # is on your block?
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Re: To lifter bore bushing or not?
[Re: galen]
#559975
12/23/09 08:22 PM
12/23/09 08:22 PM
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Joined: Jan 2003
Posts: 16,930 NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,930
NC
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Quote:
Thanks for the input, I am pretty excited. Going to use the Koleno block and have it bushed before assembly. Merry Christmas guys. Galen
I thought the Koleno blocks were all bushed?
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