tC Non Stop Tuning Underdrive Crank Pulley (1st!!!)
Originally Posted by 87na
i have had these pulleys on my toyotas for at least 50,000 miles. no problems thus far of any kind
the a/c and alternator will turn a bit slower at idle, but not so slow to result in any noticable losses. like i said, i have not had any problems of any kind with my motor or accessories as a result.
good mod and amazing dollar to hp ratio if you ask me.
the a/c and alternator will turn a bit slower at idle, but not so slow to result in any noticable losses. like i said, i have not had any problems of any kind with my motor or accessories as a result.
good mod and amazing dollar to hp ratio if you ask me.
ya it does slow down your alternator but you can barely notice it. the only problem you might have is if your running a high wattage sounds system. like 6000watts or something. dont listen to thses other guys that say your motor will break. they can only talk if they know from experience. The NST guys have used there own pulley's on daily drivers for years without a flaw. that should prove something.
so "engifineer" and "The Instigator" dont talk unless you've used of these pulleys.
and everything will work fine once you install one of these. nothing stops working.
so "engifineer" and "The Instigator" dont talk unless you've used of these pulleys.
and everything will work fine once you install one of these. nothing stops working.
gee the vendor says the UD won't void the warranty. Go figure
If you read my post an link you will see that the dyno is out 4.5 WHP over 1/3 of the rev range for the FULL set.
If you read my post an link you will see that the dyno is out 4.5 WHP over 1/3 of the rev range for the FULL set.
I know I was putting in that it is not only a $$ per HP question, out of all the bolt ons the UD is going to be the easiest for the OEM to deny warranty, next would be the header. The CAI, exhaust, flywheel, clutch, I really think the OEM will not take any issue with for the most part and there are TRD versions for, well not the flywheel yet but I bet HKS will have something soon and TRD kind of luvs to follow HKS...
In a dyno chart posted by import tuner magazine, a cold air intake on the 2AZ made roughly 4hp at the wheels. That would be roughly 6hp at the crank.
https://www.scionlife.com/forums/viewtopic.php?t=62039
I have had a ud pulley on a turbo 5EFTE and a set on a 4AGE for the past four or five years. These motors have been used for drag racing, daily driving, and weekend track sessions. No buttom end problems thus far.
https://www.scionlife.com/forums/viewtopic.php?t=62039
I have had a ud pulley on a turbo 5EFTE and a set on a 4AGE for the past four or five years. These motors have been used for drag racing, daily driving, and weekend track sessions. No buttom end problems thus far.
Originally Posted by Sam_J84
so "engifineer" and "The Instigator" dont talk unless you've used of these pulleys.
And by the way I ran underdrive pullies on my 94 Z28 Camaro for years, and had no problems. The only difference was that it bolted on to the existing harmonic balancer unlike the NST pully that removes it altogether which I will not run.
well you dont know what i know. but w/e im not gonna argue with you. im happy with my pulley. and even if it did harm my engine, i would just put the old pulley back on and take it to scion. they wont know the difference. its that simple. all i can say is that the power gains from the pulley are very noticable.
Originally Posted by Sam_J84
ya it does slow down your alternator but you can barely notice it. the only problem you might have is if your running a high wattage sounds system. like 6000watts or something. dont listen to thses other guys that say your motor will break. they can only talk if they know from experience. The NST guys have used there own pulley's on daily drivers for years without a flaw. that should prove something.
so "engifineer" and "The Instigator" dont talk unless you've used of these pulleys.
and everything will work fine once you install one of these. nothing stops working.
so "engifineer" and "The Instigator" dont talk unless you've used of these pulleys.
and everything will work fine once you install one of these. nothing stops working.
NST knows what will happen if it reduces your engine life. A new car (especially a Toyota) should EASILY pass 100 or even 150 thousand miles in life. This long life makes it difficult to say when a part caused it to fail early. So, if it reduces engine life to say 80,000 miles, they are going to tell you "Anything could have done that, poor maintenance, racing the car (after all, you do have performance parts on it), defective engine (but.. oh no, the warranty is out on it anyway) etc..." So there is NO WAY you will get NST to pay. So they are safe either way since the damage done by an improperly balanced engine can take a long time to rear its head. Have I used one of these pulleys? No... Have I rebuilt multiple engines and do I have a very good understanding of what it takes to keep one running? YES. What we are trying to tell everyone is that the balancer is there for a reason. Removing it WILL reduce engine life to some extent. How long?? that all depends on a million other things. It may last 100,000 miles, it may only last 80,000 miles.






On dynos example my cai said 6hp is that to the wheels?