internalinternal or external balance?
builder wants to use ati damper but i cant see a provision for a pulley on it?internal
Street and/or strip?moving along on my 408 stroker build ... which damper would be best if i want to run stock pulleys?
512... mostly street will see some revs north of 5500... everything balanced... i just want to use a balancer that will allow me to use my stock pulleysStreet and/or strip?
What rpm range will the engine operate at?
Has the rotating assembly been already been balanced?
I would use a Fluidampr512... mostly street will see some revs north of 5500... everything balanced... i just want to use a balancer that will allow me to use my stock pulleys
I would use a Fluidampr
They work well across a broad rpm range and are very efficient.
Contact them direct to check on pulley mounting.
Chrysler Engine Harmonic Balancers • The Original Fluidampr
I have a Fluid Damper for my 388" bullet. It has been thru 30 nights on a dirt modified and is still good.You're builder obviously knows what he's talking about. I would only recommend an ATI Super Damper or a Fluid Damper. 65'
how do i know if it has slipped ? Don't want to find out the hard way so far there is no vibration , don't know how much HP you had or the crank pistons and rods you were using if it makes any difference . i'm using a molnar crank and molnar h beam rods with DSS forged pistons think the bobweight is 1800 . **** i sure don't want that thing grenading at 7000 rpm , what should i get to replace this junk ?My experience with the Pro Sport was fine with a milder 410 for 3 years, but the outer ring managed to slip recently after upping the power via cam, heads etc. My experience is Possibly an outlier but it slipped nonetheless and I’m not using one again, the corrosion early on was a turnoff as well. Photos: Lined up together the Yellow mark on the oem balancer is “0” and the red line on the Pro Sport is “0” The timing markings are also about worthless without highlighting them as I did.
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Only thing I can say with any of these type of balancers is to mark the ring and the hub prior to use (after verifying true TDC of course)how do i know if it has slipped ? Don't want to find out the hard way so far there is no vibration , don't know how much HP you had or the crank pistons and rods you were using if it makes any difference . i'm using a molnar crank and molnar h beam rods with DSS forged pistons think the bobweight is 1800 . **** i sure don't want that thing grenading at 7000 rpm , what should i get to replace this junk ?
summit racing has them. Fluidampr 720301 Fluidampr Harmonic Dampers | Summit RacingDo you guys know where I can get a fluid dampener for a small block? They all seem to be out of stock or something!
Thanks i will give that a try , will mark inner and outer rings when the marks no longer line up i will know that the rubber has gone bad and it has slipped . i'll mark it in a few spots . you guys got me all paranoid now . in 40 years have never had a balancer gone bad , just lucky i guess . 8 years and 12,000 miles on my 340 with a made in china balancer and it has held plenty of over 7,000 rpm passes , i often forgot to shift into 3rd gear . when i built the 340 13 years ago i tossed the original balancer just to be safe went with the pro crap thought it was good obviously wrong . will buy the ATI THIS WEEKOnly thing I can say with any of these type of balancers is to mark the ring and the hub prior to use (after verifying true TDC of course)
Will the ATI work with your stock pulleys ?Thanks i will give that a try , will mark inner and outer rings when the marks no longer line up i will know that the rubber has gone bad and it has slipped . i'll mark it in a few spots . you guys got me all paranoid now . in 40 years have never had a balancer gone bad , just lucky i guess . 8 years and 12,000 miles on my 340 with a made in china balancer and it has held plenty of over 7,000 rpm passes , i often forgot to shift into 3rd gear . when i built the 340 13 years ago i tossed the original balancer just to be safe went with the pro crap thought it was good obviously wrong . will buy the ATI THIS WEEK
that is a good question , guess I'll find out soon . sure hope it fits , if not i'll sell itWill the ATI work with your stock pulleys ?
even with the pro crap dampner my 340 had zero wearonbearings everything was as good as new after 3 years and 7 or 8 thousand miles , but you guys got me paranoid now ATI IT ISMy 2 cents, and I've said it on other posts about this subject - go with ATI Super Damper. I ran one on my 4 cylinder mini-stock for many years. You know how those things vibrate. I turned that engine at a steady 5000 to 8000 RPM's all race, every race. We pull down the engine at the end of every season. Always see next to no wear on main and rod bearings, and the engine runs a LOT smoother throughout the RPM range. We've never had an engine failure. That's why I put one on the stout 340 I'm running in my 73 Sport.