8k RPM possible with hyd roller?
02-23-2021, 12:53 PM
#41
Not relevant to the thread, but hey it's the internet, but i turn 7500+rpms w/ LS7 lifters, 5/16 pushrods, shimmed BTR springs and stock rockers w/ trunion upgrade.
Imagine my disappointment when I read on the internet that combination doesn't work...
Imagine my disappointment when I read on the internet that combination doesn't work...
The following 4 users liked this post by LilJayV10:
02-23-2021, 01:58 PM
#42
TECH Senior Member
Yeah, I'm sure that was a real letdown..... but hey, they're talking 8k+ RPM here, and that makes ALL the difference in the interweb world!! Doncha know....
The following users liked this post:
LilJayV10 (02-23-2021)
The following users liked this post:
G Atsma (02-23-2021)
02-23-2021, 03:17 PM
#44
TECH Senior Member
The following users liked this post:
G Atsma (02-23-2021)
02-23-2021, 08:06 PM
#47
TECH Senior Member
Extra post excised....
02-23-2021, 10:22 PM
#48
TECH Fanatic
iTrader: (5)
I know lots and lots of people will tell you they’ve seen boosted motors making 4 digits with SBE, rods etc. I’ll never attempt any thing with powdered metal rods again, I lost a real nice 347 made out of a Gen4 5.3 block at the SonomaRaceway using those gen 4 rods when I took that motor to 7100 and one let go at the parting line sheering both bolts destroyed that motor, the remainder of that rod also broke mid beam and exited the right side of the block spilling oil all over the track, it was a bad evening to say the least. Those rods have 8mm rod bolts, those are small and not made with the best metal. Since then I have used Scat I beams with 7/16” ARP bolts and locator dowels in simple builds, they’re lighter 605 and stronger vs 648gms of the GM rods. Speaking from experience here.
8mm is approximately 5/16” that is a small bolt diameter
8mm is approximately 5/16” that is a small bolt diameter
The following 2 users liked this post by 64post:
DualQuadDave (03-10-2021), KCS (02-25-2021)
02-24-2021, 12:15 AM
#49
TECH Senior Member
I know lots and lots of people will tell you they’ve seen boosted motors making 4 digits with SBE, rods etc. I’ll never attempt any thing with powdered metal rods again, I lost a real nice 347 made out of a Gen4 5.3 block at the SonomaRaceway using those gen 4 rods when I took that motor to 7100 and one let go at the parting line sheering both bolts destroyed that motor, the remainder of that rod also broke mid beam and exited the right side of the block spilling oil all over the track, it was a bad evening to say the least. Those rods have 8mm rod bolts, those are small and not made with the best metal. Since then I have used Scat I beams with 7/16” ARP bolts and locator dowels in simple builds, they’re lighter 605 and stronger vs 648gms of the GM rods. Speaking from experience here.
8mm is approximately 5/16” that is a small bolt diameter
8mm is approximately 5/16” that is a small bolt diameter
I agree with you, if you want to spin it that tight, especially while getting 4 digit power, aftermarket is the one true path....
The following users liked this post:
64post (02-24-2021)
02-24-2021, 05:27 PM
#50
I know lots and lots of people will tell you they’ve seen boosted motors making 4 digits with SBE, rods etc. I’ll never attempt any thing with powdered metal rods again, I lost a real nice 347 made out of a Gen4 5.3 block at the SonomaRaceway using those gen 4 rods when I took that motor to 7100 and one let go at the parting line sheering both bolts destroyed that motor, the remainder of that rod also broke mid beam and exited the right side of the block spilling oil all over the track, it was a bad evening to say the least. Those rods have 8mm rod bolts, those are small and not made with the best metal. Since then I have used Scat I beams with 7/16” ARP bolts and locator dowels in simple builds, they’re lighter 605 and stronger vs 648gms of the GM rods. Speaking from experience here.
8mm is approximately 5/16” that is a small bolt diameter
8mm is approximately 5/16” that is a small bolt diameter
02-25-2021, 10:07 AM
#51
TECH Fanatic
iTrader: (5)
No, I don’t. The rods were resized for slight oversized shells with STD. 2.100” bearings. I would recommend anyone using Gen4 rods if you must, to get ARP bolts at the very least or you could experience the same. For the cost of resizing the rods and buying aftermarket fasteners you can just buy the Scat or Eagle I beams and be a little better off for the reasons I’ve stated. Just my opinion.
The following users liked this post:
DualQuadDave (03-10-2021)
02-25-2021, 10:46 AM
#52
I know lots and lots of people will tell you they’ve seen boosted motors making 4 digits with SBE, rods etc. I’ll never attempt any thing with powdered metal rods again, I lost a real nice 347 made out of a Gen4 5.3 block at the SonomaRaceway using those gen 4 rods when I took that motor to 7100 and one let go at the parting line sheering both bolts destroyed that motor, the remainder of that rod also broke mid beam and exited the right side of the block spilling oil all over the track, it was a bad evening to say the least. Those rods have 8mm rod bolts, those are small and not made with the best metal. Since then I have used Scat I beams with 7/16” ARP bolts and locator dowels in simple builds, they’re lighter 605 and stronger vs 648gms of the GM rods. Speaking from experience here.
8mm is approximately 5/16” that is a small bolt diameter
8mm is approximately 5/16” that is a small bolt diameter
02-25-2021, 11:15 AM
#53
TECH Addict
iTrader: (1)
That's why I said MIGHT. I think those that get 8k RPM out of them while cranking out huge power have one pristine set of rods with good hardware. In other words, they're LUCKY!
I agree with you, if you want to spin it that tight, especially while getting 4 digit power, aftermarket is the one true path....
I agree with you, if you want to spin it that tight, especially while getting 4 digit power, aftermarket is the one true path....
The following users liked this post:
G Atsma (02-25-2021)
02-25-2021, 11:27 AM
#54
No, I don’t. The rods were resized for slight oversized shells with STD. 2.100” bearings. I would recommend anyone using Gen4 rods if you must, to get ARP bolts at the very least or you could experience the same. For the cost of resizing the rods and buying aftermarket fasteners you can just buy the Scat or Eagle I beams and be a little better off for the reasons I’ve stated. Just my opinion.
The following users liked this post:
DualQuadDave (03-10-2021)
The following users liked this post:
tblentrprz (02-26-2021)
The following users liked this post:
DualQuadDave (03-10-2021)