Street manners with screw blower - input?

[Fullboogie]

I'll do my best to make this short. I've got the funds to buy a blower for the '08, and like many people, I'm having trouble deciding between a PD and centri blower. My prior experience with a centri consists of a 14 psi procharger on a Fox that I really had to put my foot into it to see/feel the extra power. With regard to a PD, I had an '04 Lighting with the stock Eaton pushing 12 psi that was a blast to drive with a very usable power band.

Bigray327 was kind enough to meet with me last night to chat, and he brought up an interesting point - that on the GT's, PD blowers can be hard to deal with because you get nothing but wheel spin in lower gears. I did not experience that with the Lightning, but I test drove a pullied 08 Shelby a few weeks ago and it just blew the tires off the rims with anything over 1/2 throttle (it even had new Nitto DR's).

The purpose of this thread is not to ask "which blower is better." My question is very specific - for those of you who have Saleen/Roush/Whipple/KB basic kits, how usable is the power in daily driving? I'm talking about entering the freeway, passing on the freeway, giving it gas in 1st or 2nd to pass someone in town. Do you just haze the tires as soon as boost kicks in? Only near full throttle? Do you have to run DR's just to make street driving tame?

The best way to describe my desire for a blower is this - I'm looking for the same feel that my Lightning had. Very usable low-end power in daily driving, with the bonus of power up top if I hit the loud pedal. What I am not looking for is a car that will be the next drift king whenever I give it 1/2 throttle.

If it matters, the reason I'm looking at PD blowers is because after my procharger experience, I can't take the whistling/whining of a centri. It drove me crazy and ruined the whole experience for me.

 

[BruceH]

I've had the Whipple FRPP HO with the FRPP tune. It will work fine for what you want. It's a great tune, very driveable, safe, still makes power.

My experience with a twin screw (whipple) was that over 500rwhp driving around town required more concentration than I wanted.

 

[Wicked GT]

FullBoogie, I am not running one of the listed blowers... I am running a Magnacharger. In my view if you put your foot in it in first or floor it in second you will smoke the tires. Outside of that it is VERY streetable. I have no issues leaving lights in first gear when I am driving casually but absolutely LOVE the ability to pass anyone at any time when I want to. The Magnacharger is not whiny when you are at low RPM's but once you get around 4k and up it screams like a thousand 12 year old girls at a Justin Beiber concert.

 

[dysan]

Street driving with my E-force has been fine other than dealing with the grabbiness of the Spec 3+ clutch. I have since installed a Lentech 4R70W and have only done a small amount of street driving but it's much more tame on the street now with an auto. I don't know how the other twin/roots blowers are when they come into boost but on my e-force there's a fine line when it goes all or nothing. It's something you get used to and can avoid.

 

[Diabolical!]

500rwhp whipple here. I don't drive much on the street as my suspension is hell (built for the strip), but I don't have any trouble controlling it when I do. You learn to adjust how much pedal to give it to keep from smoking the tires while still getting the power you want. If you floor it, you'll spin, but do you really need to floor it to get up the on ramp? Just give it enough pedal. Trust me, with the whipple, you never need all of the pedal on the street.

 

[Kent]

I am running a Saleen blower @10psi with 440rwhp and have no problems.You have to have a properly setup suspension to lay the power down.I also run Nitto DR's.

 

[RedMosesSC]

I have a Saleen blower with 3:55 rear, pretty much more than half throttle in 1st will get em spinning but its not an issue when your driving normally, its only when you are trying to lay as much power down as you can that you fight for traction. With the stock cams the blower has pretty good street manners, if and when your ready for some boost its there and it comes on instantly, at 7-8 psi i barely hear any blower whine...

 

[Brezick]

No issue driving on the street. Anything above 50% throttle under say 60mph will spin easy. freeway driving rolling at 60+, I can hit it no issue.

 

[JerryC]

My 2 cents, get a tune with stock like throttle sensitivity. It makes the car very drivable in town versus the typical "knife edge" throttle response in a lot of tunes.

You don't need a sensitive pedal with all that torque on tap.

 

[HellsBells]

Would running a 3.31 rear end help with this? Maybe make it more useable in the first two gears?

 

[SherrodMustang]

I can almost spin the wheels in any gear at any time.... Seriously.... Just crazy stupid fast....... And I love it. My wife refuses to even ride in it anymore..... She says it is just dangerous...

With all that said.... I can still drive the car around like almost stock. All how you drive and what you get use to..

Nothing is cooler than people looking...... Saying "good lord what is that." Sounds like a jet or something crazy in boost., would have to ride in it to understand what I am saying.... Can't stop smiling from it.... The more I have the more I want, to tell the truth.

 

[klaw]

The Whipple HO with stock cams was very street-able. The only issue I had was early on a couple times when someone pissed me off and I did a quick lane change while putting my foot into it - rear broke loose pretty quickly. My current configuration is 629 RWHP with 3.73 gears and 127550 cams. For general driving, the car is less street-able although still not difficult at all. I've learned now though to never drive my car while angry.

 

[Vapour Trails]

My 2 cents, get a tune with stock like throttle sensitivity. It makes the car very drivable in town versus the typical "knife edge" throttle response in a lot of tunes.

You don't need a sensitive pedal with all that torque on tap.

This ^

And furthermore, it's a matter of how the driver is applying power and what tires are on the car. Stomp the gas at low speed in a stock Mustang and you will spin the tires. You need to develop touch in your right foot, squeeze rather than stomp.

 

[retfr8flyr]

I have also had roots style cars in the past and never had any real problems with street control. One of the things I love about my turbo setup is the street driveability. With a turbo being load dependent as well as rpm dependent I can be at 10# of boost with only partial throttle, giving me more that adequate power without wheel spin. It's very easy to control on the street, now if I really nail it that's another story.


Earl

 

[bcb06gt]

My 06GT with the Saleen TS is my first FI car. Started with the stock pulley and now have the 3.6 with the Supershaker. Very streetable. Never had an issue. Yes, if you are in 1st going slow and stomp the pedal, the tires will spin. As someone mentioned, you "squeeze" into the throttle. Other than 1st, I don't think it is an issue at all. I am only making 435rwhp. I have no intentions of going more. More power would cost potential money - fuel pump is maxed and engine would be over the "safe" limit (for my liking). For what, a daily driver that becomes harder to lay down the power? Can't justify it for my daily driver.

 

[06whipple]

Ford Racing HO kit with Ford tune is all you need. I love mine on the street. Traction can be an issue but there are plenty of street tire options that allow you to enjoy the power on the street.

 

[b00stedgt]

452 RWHP Whipple with 4.10 gears and no problem city driving here

 

[Drex]

467/460 WHP/TQ here with a stage 2 Roush TVS. The car has more in it but I asked my tuner to go conservative for the sake of the stock
motor. It took some getting used to at first, but now I know the car really well and it only spins when I want it too. The stock pirellis were toast immediately so the first thing I did was get some good rubber. I chose Hankook V12's. The car drove like stock unless I used the power. I actually averaged 26 MPG on the highway the other evening driving back at 60 MPH. I knew the stock clutch was slipping, so I upgraded to an Exedy Mach 600 today. I lost those stock characteristics but I know know just how much the stock clutch was slipping. The new clutch has very little play in it and some chatter when leaving in first. But now I know I'm getting all the power to the tires.

I will say that driving on less than ideal street conditions requires concentration and care. You have to be very careful accelerating on a wet street. My car will spin the tires at 90 mph if I hammer it on a wet street. I know this from experience.


A country worth living in is a country worth fighting for.

 

[Riptide]

400whp kenne bell setup here. 8psi. Car is a kitten unless you stab it. Has traction issues in 1st, 2nd, on occasion depending on temps and road surface. Easy to drive, runs well, very pleased with it.


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[skwerl]

Ditto with the M90. Yes, you can break traction at almost any time in first or second if you try. And I agree that you can't drive it when you're angry because if you try too hard to slam it around then it will get away from you.