Undeerdrive pulley/balancers..feelings?
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Undeerdrive pulley/balancers..feelings?
I have a 2002 LS1 firebird WS6. I am considering an underdrive pulley/balancer.
Leaning towards going that route when I change out my belts anyway(probably a sooner rather than later project my belts currently do not impress me with their condition) I am looking at the SLP unit at 25% advertised underdrive or the fluidamper at 10% advertised underdrive. Personally I like the press fluidampers get but have never owned one personally to see if I really think it is worth the extra couple hundred bucks.
Any thoughts or feelings on if it matters which or if NOONE likes underdrive pulleys?
Leaning towards going that route when I change out my belts anyway(probably a sooner rather than later project my belts currently do not impress me with their condition) I am looking at the SLP unit at 25% advertised underdrive or the fluidamper at 10% advertised underdrive. Personally I like the press fluidampers get but have never owned one personally to see if I really think it is worth the extra couple hundred bucks.
Any thoughts or feelings on if it matters which or if NOONE likes underdrive pulleys?
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my 25% ud pulley worked well for about 3 months , now im having voltage meter issue. i 2nd the poster that says you should get an overdrive alternator pulley. i bought a new alt w overdrive pulley not installed yet. my A4 idles at 600 rpm w foot on brake. ls6 cam.
#11
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ATI on mine as well. You make power from the better harmonic dampening of the ATI. The slowing down the accessories makes a little power, but I'd not do that.
The SLP/Powerbond unit is ok, but the ATI is in another universe in terms of performance, price, and quality.
The SLP/Powerbond unit is ok, but the ATI is in another universe in terms of performance, price, and quality.
#16
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I ran across a lot of information from Kurt urban how he tested single timing chains vs double rollers and how they were binding and that he added a timing chain damper and an ATI super damper and the problem stopped..
This was enough info for me
I also emailed him awhile back and he suggested the full size steel version for street driving!
I took his advice based on his experience vs mine.
In my opinion getting a ATI SD over a stock or regular aftermarket damper is similar to doing the trunion upgrade vs keeping the stock rockers OEM.
They both will work but one is better..
Usually word gets around when something works very well, majority rules in most cases.. Sometimes that theory doesn't work but good products spread by word of mouth!
#17
Super Hulk Smash
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Vettes had a problem breaking timing chains. Even the C5R chain. It was because of harmonics at 4500 which, when road racing, is hit quite a bit. Adding the ATI and a timing chain damper solves it as Burken said.
I run a double roller with the Katech LS6 timing chain damper and the ATI balancer.
I run a double roller with the Katech LS6 timing chain damper and the ATI balancer.
#18
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Exactly, a lot of people are doing "new" mods to their car that they have never done before.
And as jake fusion has said in his build thread, you try to gather as much credible information on parts from "real" racers and engine builders and then make a sensible decision.
In the end I prefer to do preventive maintenance and spend the extra coin on a better proven part, my build had taken almost twice as long because of that but it's a choice I made..
You don't have to get an ATI, but if you notice problems "if" then you'll have the information and can switch later..
And as jake fusion has said in his build thread, you try to gather as much credible information on parts from "real" racers and engine builders and then make a sensible decision.
In the end I prefer to do preventive maintenance and spend the extra coin on a better proven part, my build had taken almost twice as long because of that but it's a choice I made..
You don't have to get an ATI, but if you notice problems "if" then you'll have the information and can switch later..