Is this a price to good to be true for a Vortech?
Check out my FS threads and make me an offer, if you're interested. 
Joined: Dec 2008
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From: Puerto Rico
I have till december to get my isht straight before I take the plunge.
Joined: Dec 2008
Posts: 1,901
Likes: 2
From: Puerto Rico
Yup..saw that. But I'm unsure yet of compatibility. Regardless, as stated in my previous post...I have till december to make up my mind and begin.
Yo estoy en las mismas que tu.
Turbo – More Torque, no parasitic loss, more power down the road but would be more difficult to install and possibly harder on the block. Would loss more NA stuff also
Vortech – easer to install (could do it my self). Less torque (stress on the rods) , would compliment my 3.9FD and most of the NA stuff but if you are looking for big power down the road it is difficult to get.
I am inclined to get a Vortech tuner with 9lbs. pulley
Turbo – More Torque, no parasitic loss, more power down the road but would be more difficult to install and possibly harder on the block. Would loss more NA stuff also
Vortech – easer to install (could do it my self). Less torque (stress on the rods) , would compliment my 3.9FD and most of the NA stuff but if you are looking for big power down the road it is difficult to get.
I am inclined to get a Vortech tuner with 9lbs. pulley
As you're alluding to, the centrifugal SCs simply improve the NA power band while adding very little torque. As rpm increase, the HP increases in a linear fasion unlike a turbo where the power band jumps up exponetially over just a few hundred rpms. I've thought and thought out this, and IMO, the centrifugal blowers are the way go with these cars if you want to keep your stock motor alive longer. Yeah, the powerband isn't near as robust, but the VQ isn't as remotely dependant on tuning as with a turbo. The new Vortechs don't require an oil tap either making things that much easier. My biggest concern with these SCs is the reliability of pullies and tensioners. It's always been the issue with Vortech/ATI blowers. If you own one these setups, it would be smart to always carry an extra belt, tensioner, and tools to do a repair on the side of the road. Also, these units need rebuilds every 20K miles or so.
Joined: Dec 2008
Posts: 1,901
Likes: 2
From: Puerto Rico
I agree, for all out power and torque, turbos win hands down. However, the problem with running turbos on NA motors is the tuning and strength of the engine. Turbo build torque very quickly. If you're tuning is just slightly off, it could toast the motor in a matter of a couple of seconds. There's a reason why most VQ35s are destroyed when a turbo starts to ramp up.
As you're alluding to, the centrifugal SCs simply improve the NA power band while adding very little torque. As rpm increase, the HP increases in a linear fasion unlike a turbo where the power band jumps up exponetially over just a few hundred rpms. I've thought and thought out this, and IMO, the centrifugal blowers are the way go with these cars if you want to keep your stock motor alive longer. Yeah, the powerband isn't near as robust, but the VQ isn't as remotely dependant on tuning as with a turbo. The new Vortechs don't require an oil tap either making things that much easier. My biggest concern with these SCs is the reliability of pullies and tensioners. It's always been the issue with Vortech/ATI blowers. If you own one these setups, it would be smart to always carry an extra belt, tensioner, and tools to do a repair on the side of the road. Also, these units need rebuilds every 20K miles or so.
As you're alluding to, the centrifugal SCs simply improve the NA power band while adding very little torque. As rpm increase, the HP increases in a linear fasion unlike a turbo where the power band jumps up exponetially over just a few hundred rpms. I've thought and thought out this, and IMO, the centrifugal blowers are the way go with these cars if you want to keep your stock motor alive longer. Yeah, the powerband isn't near as robust, but the VQ isn't as remotely dependant on tuning as with a turbo. The new Vortechs don't require an oil tap either making things that much easier. My biggest concern with these SCs is the reliability of pullies and tensioners. It's always been the issue with Vortech/ATI blowers. If you own one these setups, it would be smart to always carry an extra belt, tensioner, and tools to do a repair on the side of the road. Also, these units need rebuilds every 20K miles or so.
The ONLY way I'd ever use a turbo on the glass VQ35 is with new rods and pistons. These OEM components are made to rev quickly as to obtain HP quickly through rpm. They're not made to handle the stresses of turbo boost. There's a HUGE difference between a turbo rod and piston and an NA set. I don't care what a shop says, including Forged, you CANNOT tune a NA VQ35 to handle turbo boost reliably (ie for 50K+ miles). It's just too much stress for these thin rods and fragile light pistons. The block and crank is fine though.
Joined: Dec 2008
Posts: 1,901
Likes: 2
From: Puerto Rico
I've always loved a challenge.
Don't boost a stock DE motor unless you're prepared for the consequences. And if you're worried about the cost of a turbo vs sc, then you're not ready for the consequences. You may survive at 500 wtq or you may fail at 350 wtq. You may last 50k miles or you may fail on the dyno. There's just no way to know what your "glass" rods will hold. (I like that glass metaphor DaveB ).
There's just one question you gotta ask yourself:
Do you feel lucky?
(And I love Clint Eastwood!)
). There's just one question you gotta ask yourself:
Do you feel lucky?
(And I love Clint Eastwood!
)
Last edited by rcdash; Aug 7, 2009 at 11:33 AM.
Joined: Dec 2008
Posts: 1,901
Likes: 2
From: Puerto Rico
Can you quote the part where someone said it was easy?