???
What exactly do they do, what's the benefit?96gt014.6 said:Under driver pullies are a great thing to have.
What gains did you notice?Arron's racecar said:I have bbk UDPs on my car and have never had any issues. Note that I also have 2 kicker 900w amps powering 2 kicker c12 competition subs.
+1, although I believe its more around 5-8 hp freed....but none the less, get some but only get SFI certified bolt on pullies, DO NOT GET the piggy back style...Arron's racecar said:As was said earlier it's really only 8-10HP maybe more with a tune. but it's not really adding HP so much as simply freeing up HP.
I just don't see Steeda releasing a product with their name on it if it was a significant risk to your motor...DaBluedude said:Ill play devils advocate. I don't like them. Its a very slight advantage for a significant risk to your belt system. I prefer to keep the stock pulleys.
Can you prove it was the UDP? And not faulty equip or overload from a system drawing too much? Many many more people have had them with absolutely no issues...JDF said:I don't see any real benefit from them. I have a buddy who bought his car with them on and he's blown 1 alternator and 3 alternator wiring harnesses because of them
His car is bone stock other than gears, the UDPs, and a short throw. It ran like a top up until that point, I can't give you a 100% positive answer but I'm 98% certain those are it. He's got a 95 GT by the way2002VertGT said:Can you prove it was the UDP? And not faulty equip or overload from a system drawing too much? Many many more people have had them with absolutely no issues...
That's wierd, I mean different cars take to mods differently....I will be using stock alt pulley...and eventually getting a high amp alt...JDF said:His car is bone stock other than gears, the UDPs, and a short throw. It ran like a top up until that point, I can't give you a 100% positive answer but I'm 98% certain those are it. He's got a 95 GT by the way
Yeah it's been a real stumper for us. Gonna try and switch everything out here in the next couple of weeks. I could watch his headlights dim at idle because his alternator just wasn't able to put out enough voltage at idle.2002VertGT said:That's wierd, I mean different cars take to mods differently....I will be using stock alt pulley...and eventually getting a high amp alt...
Did he use the ud alt pulley or the stock?JDF said:Yeah it's been a real stumper for us. Gonna try and switch everything out here in the next couple of weeks. I could watch his headlights dim at idle because his alternator just wasn't able to put out enough voltage at idle.
That happened with the UD pulley2002VertGT said:Did he use the ud alt pulley or the stock?
I'll be using stock alt pulley and ud crank and water pulleyJDF said:That happened with the UD pulley
Good idea2002VertGT said:I'll be using stock alt pulley and ud crank and water pulley