It was sweet on my 03 cobra running stock boost. I vote Magie

 

Chris-

What kind of numbers does your system put out? pm pricing info please.

 

They say the same with LG headers compared to other headers meaning no low end torque and I can tell you the LG's rock. Now I am struggling between the two but many not all tuners say while the Maggie is better low it gets extremly hot quick and you lose all the power but the ATI will not. If in fact the ATI needs more RPM then why not just add a lower gear to off set the difference and heat isn't an issue?

 

When you compress air, you generate heat. It doesn't matter how you compress the air, roots blower, centrifugal blower, turbocharger, all the same. A given amount of boost with any of them will heat the air the same amount. Most of the centrifugal and turbo kits include an air-air intercooler to remove the heat generated by compression before feeding the air to the engine. Because of the way a roots blower mounts on the engine, an air-air intercooler is impractical. But an air-water intercooler is available as an option. Air-water is much more efficient than air-air, so it can be smaller. In this case, it fits under the supercharger.

The big advantage of the roots blower is that it comes on down low, and stays with you all the way to redline. That gives you a big fat torque curve with lots of area under it. A centrifugal blower starts small and increases with the square of RPM. That makes it very peaky, with less area under the curve. Lots of area under the curve means much better acceleration from a stop (if you can get traction). It is no wonder that Top Fuel cars all use roots blowers instead of centrifugal blowers.

Note that a properly sized and wastegated turbocharger system can duplicate the characteristics of a roots blower system without the parasitic losses of a crank driven blower. It can also be setup to give very high peak horsepower, like a centrifugal blower. In other words, with proper engineering, turbos offer the best of both worlds, with few of the drawbacks. A good TT system is more expensive than a belt driven blower, but it is worth it. OTOH, a bad turbo setup is truly hell, with lots of lag and surging. There are rarely really serious driveability problems with blowers, even if they are less than ideally setup. So a blower is a safer choice for someone on a budget.

Notice I said "safer" above, I did not say safe. Any FI system carries risks. A good conservative tune is essential. Power greed can be deadly. Same story with nitrous, conservative is safe, power greed can create a grenade.

 

I had a non-intercooled Maggie on my C5 and it was great fun on the street. The low end torque was amazing and a really neat sensation when darting off from any low RPM speed. When you're not going heavy throttle, the car drove exactly as stock except for a very slight whistle and had very little change in gas mileage (edit: when you're using the power, though, gas mileage, err, changed a bit more ). With just the Maggie, I had about 400 rwhp. Later, in search of more power, I added a cam and got to about 440 rwhp, which on a 1.8 60 foot launch netted an 11.4 @ 124 mph. Still later, I played with pulleys and alcohol and got even more power, around 460 rwhp without pushing the tune too far.

But, turning the clock forward, the LS2 is starting w/another 50 horsepower and likely better breathability, so even though the Maggie has its limits on upward power, with only the intercooled Maggie you already will be in the near-useless-on-the-street levels of power. Lingenfelter already has 474 RWHP/ 460 RWTQ with an auto tranny car (link). That's a little more than I reliably got with ALL the goodies I added to my c5. On the street for a daily driver, it's certainly going to better a Viper, unless you have issues, WHICH YOU WILL, on traction.

On the other hand, if you want to drive insanely fast on the highway or are shooting for the absolute best on the 1/4 mile track, the centrifugals have shown higher peak rwhp. But, more issues have been reported with the centrifugals, and perhaps that's because they're making more power, provide more stress to the belt, not as reliable, or a combo of all of these things. Also, as you keep increasing power, demands on other systems go up, too.

Speed costs. How much do you want to pay?

 

You all confuse me everyday.

 

Cliff notes -

Magnuson - Great low end horsepower and torque, Roll into the throttle at 2000 RPMs and hold on! You don't have to wait for the RPMs to climb much to feel this one.

ProCharger - You won't feel this as much as the Magnuson in the lower RPM range. It really starts to shine in the middle to upper RPM range. It also has greater capibility if you want to go wild with mods later.

Hope this helps

 

Love the roots/screw SCs. Just wish they fit under the stock hood!! What style hood are you going to get?

 

The Maggie is neat, but the noise it makes under boost (heard on video) is just way too loud for my taste. I'm probably going to go with Andy's setup, using a Vortech SQ head unit.

FYI, it is also possible to set a Centri up for low rpm boost: use a more agressive pulley and allow the BOV to bleed boost above a certain level. Not the most efficient, but can be done.

 

Also, no aftermarket hood with the procharger, and unless you like a VERY LOUD whine. Stick with the procharger

 

Magnuson might have a supercharger that will fit under the factory hood in the future. This isn't etched in stone but they are looking into it.

 

Oh I hope they do!

 

I dont feel this is an accurate statement at all. The maggie has an internal bypass valve to equilze the SC with atmosphere ( i.e. no boost) until you get into the throttle so your mpg and engine dont suffer constantly... only when you get on it . Second, maggies do not rob the engine of as much power as everyone is making it out too... its actually a pretty efficient SC for a hybrid roots type. The twin screw type (whipple or KB) is another good exaple of manifold based superchargers that are very reliable, very efficient, and rob hardly any power.

 

Has anyone put the Magnuson on a C6 yet. We do have more hood clearance than the C5

 

Magnuson produced 15 in their first production run and they are now working on 50 C6 kits for next month. We're taking orders for these now. The RK Sport hood should also be ready to go very soon.

Tom