Does anyone take the stock turbo and just upgrade the internals?
See, this is what gets me.
There are a few guys that I trust. The ones I trust seem to have a difference of opinion. One thinks I should get the red, another thinks I should get a green.
I too would like the broadest power band available, without changing the rev limit of course.
I have stated that my goal is 400whp without cams, E85, or Meth. I now know that really isn't possible. Looking at shear spool the green seems the best to provide quick spool and a decent power bump (380-390 from what I understand).
From my readings I have a few people that I trust stating the Red would spool a few rpm's later with proper MIVEC configuration. However, I see the vast majority of others having issues getting the Red to spool that early, so that makes we wonder....
I have been trying to make this decision for some time now, and quite frankly I'm tired of thinking about it...Does anyone know if FP would swap me out if I change my mind inside of a month of usage, if I decide I made the wrong choice?
There are a few guys that I trust. The ones I trust seem to have a difference of opinion. One thinks I should get the red, another thinks I should get a green.
I too would like the broadest power band available, without changing the rev limit of course.
I have stated that my goal is 400whp without cams, E85, or Meth. I now know that really isn't possible. Looking at shear spool the green seems the best to provide quick spool and a decent power bump (380-390 from what I understand).
From my readings I have a few people that I trust stating the Red would spool a few rpm's later with proper MIVEC configuration. However, I see the vast majority of others having issues getting the Red to spool that early, so that makes we wonder....
I have been trying to make this decision for some time now, and quite frankly I'm tired of thinking about it...Does anyone know if FP would swap me out if I change my mind inside of a month of usage, if I decide I made the wrong choice?
In the end, you really need to drive a car with both.
BUT, the big mistake you guys are making is you need to look at the Torque curve. The Red will have a broader Torque Curve. Torque is what accelerates your car. Having Torque in the upper RPM range means that you can keep it in a lower gear and convert those RPM numbers into more Torque (via the transmission). Peak Torque numbers are fun for getting a quick kick when you punch it. A flat Torque curve in the upper RPM range means the car will not stop pulling once you actually start to accelerate.
The Stock Turbo's Torque falls off real fast. So acceleration feels like it falls away as the engine revs. Then you shift and it feels like power kicks in again.
The Green's Torque still falls downward as RPM increases. It will pull to red line, but you will notice that acceleration fades as it reaches higher RPM.
The Red's Torque is fairly flat. It does drop some, but not noticeable.
The Black should have a flat Torque curve.
Now each turbo sacrifices some spool. But is it hard to notice 500 RPM loss in spool? Yes, once you learn how to drive in the new power band, you will still be in boost.
It's all really simple. Go back and look at dyno charts and pay attention to the Torque curve. Imagine that Torque curve as a graph that show how your car will accelerate. Area under Torque curve = more fun. Peaky Torque curve = whiplash to let down. A flat Torque Curve plants you in your seat and holds you there.
You choose.
Last edited by Golden; Aug 7, 2010 at 08:44 AM.
In the end, you really need to drive a car with both.
BUT, the big mistake you guys are making is you need to look at the Torque curve. The Red will have a broader Torque Curve. Torque is what accelerates your car. Having Torque in the upper RPM range means that you can keep it in a lower gear and convert those RPM numbers into more Torque (via the transmission). Peak Torque numbers are fun for getting a quick kick when you punch it. A flat Torque curve in the upper RPM range means the car will not stop pulling once you actually start to accelerate.
The Stock Turbo's Torque falls off real fast. So acceleration feels like it falls away as the engine revs. Then you shift and it feels like power kicks in again.
The Green's Torque still falls downward as RPM increases. It will pull to red line, but you will notice that acceleration fades as it reaches higher RPM.
The Red's Torque is fairly flat. It does drop some, but not noticeable.
The Black should have a flat Torque curve.
Now each turbo sacrifices some spool. But is it hard to notice 500 RPM loss in spool? Yes, once you learn how to drive in the new power band, you will still be in boost.
It's all really simple. Go back and look at dyno charts and pay attention to the Torque curve. Imagine that Torque curve as a graph that show how your car will accelerate. Area under Torque curve = more fun. Peaky Torque curve = whiplash to let down. A flat Torque Curve plants you in your seat and holds you there.
You choose.
BUT, the big mistake you guys are making is you need to look at the Torque curve. The Red will have a broader Torque Curve. Torque is what accelerates your car. Having Torque in the upper RPM range means that you can keep it in a lower gear and convert those RPM numbers into more Torque (via the transmission). Peak Torque numbers are fun for getting a quick kick when you punch it. A flat Torque curve in the upper RPM range means the car will not stop pulling once you actually start to accelerate.
The Stock Turbo's Torque falls off real fast. So acceleration feels like it falls away as the engine revs. Then you shift and it feels like power kicks in again.
The Green's Torque still falls downward as RPM increases. It will pull to red line, but you will notice that acceleration fades as it reaches higher RPM.
The Red's Torque is fairly flat. It does drop some, but not noticeable.
The Black should have a flat Torque curve.
Now each turbo sacrifices some spool. But is it hard to notice 500 RPM loss in spool? Yes, once you learn how to drive in the new power band, you will still be in boost.
It's all really simple. Go back and look at dyno charts and pay attention to the Torque curve. Imagine that Torque curve as a graph that show how your car will accelerate. Area under Torque curve = more fun. Peaky Torque curve = whiplash to let down. A flat Torque Curve plants you in your seat and holds you there.
You choose.
Thread
Thread Starter
Forum
Replies
Last Post
krackerstache
Evo X Electrical / Audio / Security
9
May 16, 2012 09:44 AM
ssteve
Evo Engine / Turbo / Drivetrain
16
Jan 14, 2010 05:20 AM
BlackonBlack2
Evo Engine / Turbo / Drivetrain
10
Oct 24, 2008 09:57 PM
