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Old 01-10-2008, 10:33 PM   #1
03OrangeSVT
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Exclamation Feed back time: gone from SC to turbo

I wanted some non biased opinions from you guys that have went from being Supercharged to Turbo.

This is just for general information.... since some people think I'm biased towards the turbo I will not comment in this thread.

Please answer these simple questions in your replies......

What supercharger did you run and what PSI?


What turbo did you go to and how much PSI?


Which do you think runs better overall?


Is there a power difference?


Which one made your car run faster?


Any other comments you would like to make?


I want to thank everyone in advance... I will use this in this forum as a "Info" sticky once it gets going.

John


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Old 01-10-2008, 11:21 PM   #2
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What supercharger did you run and what PSI?

JRSC BBK

What turbo did you go to and how much PSI?

Roush Turbo 11.5 psi

Which do you think runs better overall?

They both run good as a daily driver. But the turbo is more fun.

Is there a power difference?

There is an unbelievable difference. They can not even be compared.

Which one made your car run faster?

HAHA.. yeah the turbo kicked its ass.

Any other comments you would like to make?

If you are looking for something simple, bolt on, stick a mail order tune on, and have a better drive to work the supercharger is fine.

If you want your car to be fast and race some respectable cars get a turbo.
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Old 01-11-2008, 12:21 AM   #3
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I went from a turbo to a supercharger, backwards from normal but I like it.


What supercharger did you run and what PSI?
Run the Powerworks right now, I really like the powerband. It makes the engine feel bigger, it is very smooth.

What turbo did you go to and how much PSI?
Had Roush, I ran it at 17 psi.

Which do you think runs better overall?
They both run well. If I had a centrifugal charger I could compare them better.

Is there a power difference?
The turbo kicked hard, the supercharger is smooth. The turbo was good for the "wow this is fast factor" but it was a beast and harder to control. It lacked up top (i think it was turbo size) but the torque was awesome.

Which one made your car run faster?
I ran the turbo at the track on street tires, and trapped at 99 with 248 whp.
With the powerworks on drag radials, and trapped at 92 with unknown whp.
Before anyone says it is slow this is at 4900 feet above sea level.

Any other comments you would like to make?
I am building my engine back up for the powerworks now. Just sent my blower out to be ported to lower IAT's. 6lb pulley and a 35 shot, hoping to hit 300 whp. Then it is time to mod the SVO and the Lightning.
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Old 01-11-2008, 02:47 AM   #4
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What supercharger did you run and what PSI?

JRSC at 12psi

What turbo did you go to and how much PSI?

T3/T04E 50-trim with 63 AR, 18psi max

Which do you think runs better overall?

My gas mileage with the turbo is way better with the turbo than the supercharger

Is there a power difference?

WOW Yeah the supercharger never made the car lean back while I accelerated hahahaha

Which one made your car run faster?

See above

Any other comments you would like to make?

Turbos have much more to offer than superchargers. Torque wins races and a turbo focus running the same psi as a supercharged focus will always win the race.
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Old 01-11-2008, 06:26 AM   #5
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What supercharger did you run and what PSI?
Procharger, C2 variant @ 12-13psi redline


What turbo did you go to and how much PSI?
Have driven a T3 super 60 SVTF with the same peak boost.

Which do you think runs better overall?
Turbo, hands down. The centrifugal SC is basically a large A/R turbo spun by a belt instead of exhaust gasses. You limited by crank RPM, and also forced to push proportional boost to the rpm, so the motor and DV get a workout, full-time. Street drivability mostly equal out of boost. LACK of torque with the PC is the biggest downfall overall. This is where a turbo shines.

Is there a power difference?
At the same boost, YES, absolutely. Both cars had the same HP, but the turbo vehicle made an extra 40-50 wtq easily, and made it down low where it counts on the street. Thats not to say that the procharged car was a slouch. Hammer the throttle at 4500+ rpms and you are GONE. Overall though the turbo car was much more torquey, and thus more fun to drive through a broader rang of rpms.

Which one made your car run faster?
Obvious from above ^^

Any other comments you would like to make?
Here is the decision you must make:

The only reason to go with a SC in my mind, is to go with PC for the absolute ease of installation, and consequent lack of headaches and overall modification to the car.

Beyond that, a turbo is what you're looking for. Most every small displacement engine in production today from the big companies are using turbo's for thier form of FI. Even notoriously SC'd cars are going the way of the turbo now (mini, cobalt SS, etc).

The overwhelming trend here, is that people defend thier mods and parts AS IF they designed them themselves. Just because you drop 3-5k on a SC or any other setup does not mean its the best way to go. More often than not, people will justify things because they already sunk a large chunk of change in it, basically buying virtual stock in the company. All forms of FI are nice, but a turbo is just nicest.

And to finalize the opinion - I'm willing to bet every single PC owner will (want to) convert to turbo at some point if the cash allows for it. Its like being sooo close, but lacking all that torque where it really matters.
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Old 01-11-2008, 10:06 AM   #6
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OK, this is going to be semi incomplete until I finish building my car, but I have to add my two cents. Once the car is up and running and tuned I will edit this and give a full on comparison.

What supercharger did you run and what PSI?

Vortech V5 F-trim SQ Aftercooled
13psi with overdrive crank pully


What turbo did you go to and how much PSI?

Garrett GT3071R External Gate (20psi)

Currently though I am running a GT28R @ 12psi in my ST. That is what got me to switch.


Which do you think runs better overall?

For my use, turbo all the way.


Is there a power difference?

This is going to be somewhat of an open ended answer. I have not run my hatch yet as I am finishing up the build on it. But, comparing my Hatch to my ST, there is no question in my mind that the hatch will run harder and faster with the turbo.

Which one made your car run faster?

The turbo, again referencing the ST since the ZX3 is not finished being built yet.


Any other comments you would like to make?

Don't get me wrong, the Vortech put out excellent power and I enjoyed it, but I just can't wait until redline for all my boost. I do alot of Road Racing and it is a major difference when exiting a turn to be at full boost, or partial boost. Plus, launching at autocrosses is way better with a turbo.

In the end you have to remember it's all about your needs and goals. Years ago when I put the Vortech on the ZX3 it was all I needed at the time. I enjoyed every minute of it too. But as the years progressed and I got more competative I outgrew my setup and had to move on.

The Vortech was great for having a fun daily driver. It made great power and stayed very street friendly. I just need more then it could ever do for me, so it came off and a turbo went on.
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Old 01-13-2008, 01:13 PM   #7
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What supercharger did you run and what PSI?

Powerworks 12psi

What turbo did you go to and how much PSI?

GT28R Precision Kit 13psi


Which do you think runs better overall?
I've run superchargers on all types of engines
but after seeing and feeling the difference in
a turbo its turbo chargering all the way.

Is there a power difference?
Yes but superchargers for the focus are only so big.


Which one made your car run faster?
They both about the same right now until I get a better
bigger turbo


Any other comments you would like to make?

Turbos for the win
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Old 05-16-2008, 12:13 PM   #8
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What supercharger did you run and what PSI?

I ran the FS/VF Stg3 Supercharger Kit @ 10-11psi

What turbo did you go to and how much PSI?

I have a custom Xios-based turbo kit running about 15psi on the street.

Which do you think runs better overall?

Both were good kits but I prefer the turbo kit

Is there a power difference?

I don't have a dyno chart to compare both at the same boost level but I'm pretty sure that the turbo would produce more hp & tq than the supercharger kit.

Which one made your car run faster?

Turbo, but I'm running more boost now so.......

Any other comments you would like to make?

The biggest issue I had with the supercharger was the belt slippage. The biggest advantage IMO that the turbo has (other than no belt issues) would be the adjustability of the boost level and the torque. I like the way that turbos build max boost quickly and hold it compared to how my centrifugal supercharger increased boost with rpm. In other words, the turbo would hold max boost from say 4,000rpm whereas my supercharger would climb from say 6psi to say 10psi from 4,000rpm to 7,000rpm. Superchargers are great........ but turbos are just better
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Old 06-28-2008, 06:29 PM   #9
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Quote:
Originally Posted by IslandFocus View Post
What supercharger did you run and what PSI?

I ran the FS/VF Stg3 Supercharger Kit @ 10-11psi

What turbo did you go to and how much PSI?

I have a custom Xios-based turbo kit running about 15psi on the street.

Which do you think runs better overall?

Both were good kits but I prefer the turbo kit

Is there a power difference?

I don't have a dyno chart to compare both at the same boost level but I'm pretty sure that the turbo would produce more hp & tq than the supercharger kit.

Which one made your car run faster?

Turbo, but I'm running more boost now so.......

Any other comments you would like to make?

The biggest issue I had with the supercharger was the belt slippage. The biggest advantage IMO that the turbo has (other than no belt issues) would be the adjustability of the boost level and the torque. I like the way that turbos build max boost quickly and hold it compared to how my centrifugal supercharger increased boost with rpm. In other words, the turbo would hold max boost from say 4,000rpm whereas my supercharger would climb from say 6psi to say 10psi from 4,000rpm to 7,000rpm. Superchargers are great........ but turbos are just better
hey man i have been looking into this turbo kit i was just wondering if you were satisfied with it and how hard it is to put in or did you have someone do that for you? How difficult was it to order and what did you do prior to buying it to get your car ready? if you could help me out it would be great thanks man.
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Old 06-28-2008, 09:24 PM   #10
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Yes, I am very satisfied with the kit parts that I got but quite a bit of it is custom. For instance, I merged the 2.5" SVT downpipe to a 3" Zetec style downpipe and I had all of my piping custom made. However, the main components i.e. the turbo, manifold, downpipe, fans and intercooler are all good quality parts.

I installed it myself and it wasn't really that difficult. Sure some of the bolts were a bit hard to get to but that is probably a challenge in most cases. In terms of ordering, I just emailed and called Andreas at Xios and told him which parts I needed. The turbo I wanted was on back order so it took a bit longer than anticipated but Andreas made up for that.

My motor is built and I have a 3" exhaust, Torsen LSD and Exedy Hyper Single clutch. If you're planning on keeping the boost low, then I don't suppose you need anything prior to installing the kit. PM me if you have any further questions to get a quicker response. Here is my build thread btw http://www.focusfanatics.com/forum/showthread.php?t=141324
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