centrifical vs roots

APowers · Aug 12, 2006

Do most of you prefer a centrifical blower as apposed to a roots type blower? Does anyone even make a roots blower for an application like a Mustang?

anthony05gt · Aug 12, 2006

That new Magnacharger is a hybrid. It's a cross between a roots and twin screw. If you plan on track time, the Procharger seems to be the way to go. Among the centrifugals, it's the coolest running and has the coolest air charge. The bottom end torque is right on and the HP and TQ curves just steady climb up the rpm band. I installed mine in about 12-13 hours. Way easy! If you want the torque planted much more at the bottom end of the rpm band then go with a roots or twin screw. They are more expensive and are much more involved as far as the install goes. My personal favorite blower is the Ford Racing (Whipple) twin screw. The new 2.8L intercooled system is just about ready to be released. The supplied hand tuner has the absolute best up to date tune software which will give great trouble free performance. If you decide on a Procharger, it comes with everything you need right down to the last nut and bolt including a Diablosport Predator with a tune loaded and ready. I suggest staying at or below 8 lbs boost without a professional dyno tune with whatever blower you choose.

JLTucker · Aug 14, 2006

I've had both and will never own a centrifical again.

There is nothing like full boost at only 2600 RPM!!!

Most centrificals make boost above 3500 then before you know it your shifting.

I just installed my Magna Charger onm my 5.4 F-150 (same basic kit at the Mustang) is 6 hours! Kit includes plugs, injectors, tune, everything, plus it looks factory.

Fun street car with loads of power go roots. Building a pro street or renagade car go centrifical... big centrifical.

anthony05gt · Aug 14, 2006

Yeah, but a centrifugal pulls hard right to redline. My Procharger is running 11lbs boost. At 4500rpm's it's already at 5 lbs. I have good strong low end power with it. I wouldn't want any more traction trouble than I'm dealing with. It's less money and performs well. The fastest 3-valve mustang in the world is running a Procharger. That's my friend Justin Burcham. I will say again, I like the Whipple twin screw blowers best.

APowers · Aug 15, 2006

Wow, you guys are leaning exactly the oppisite direction I had expected. I really thought everyone would prefer the centrigugal blowers.

Consider me enlightened.

Smoke-em · Aug 15, 2006

anthony05gt said:
That new Magnacharger is a hybrid. It's a cross between a roots and twin screw. If you plan on track time, the Procharger seems to be the way to go. Among the centrifugals, it's the coolest running and has the coolest air charge. The bottom end torque is right on and the HP and TQ curves just steady climb up the rpm band. I installed mine in about 12-13 hours. Way easy! If you want the torque planted much more at the bottom end of the rpm band then go with a roots or twin screw. They are more expensive and are much more involved as far as the install goes. My personal favorite blower is the Ford Racing (Whipple) twin screw. The new 2.8L intercooled system is just about ready to be released. The supplied hand tuner has the absolute best up to date tune software which will give great trouble free performance. If you decide on a Procharger, it comes with everything you need right down to the last nut and bolt including a Diablosport Predator with a tune loaded and ready. I suggest staying at or below 8 lbs boost without a professional dyno tune with whatever blower you choose.

Anthony, you refer to the Whipple as being a 2.8Liter. As far as I know the Whipple 140AX for the S197 is a 2.3Liter, Correct me if Im wrong and you have any more info on this I would be interested in seeing.

TGJ · Aug 15, 2006

What are your intentions with the car? Race car first, street car 2nd or Street car first, race car 2nd?

If you are building a race car first, I would go with a Centrifugal because you have some other supporting tuning options with it. What I mean by tuning is that you can run more gear and things like that, not the actual PCM tune

If you are building a street car first, I would go with a Roots or Twin Screw. These make good power especially down low. You would have a hard hooking up if you tried to run a 4.30 in the rear and a Twin Screw SC for example.

anthony05gt · Aug 15, 2006

Smoke-em said:
Anthony, you refer to the Whipple as being a 2.8Liter. As far as I know the Whipple 140AX for the S197 is a 2.3Liter, Correct me if Im wrong and you have any more info on this I would be interested in seeing.

They haven't released the big blower for the new stangs yet. It will be intercooled too. Supposed to be out soon.

TGJ, couldn't have said it better!

Smoke-em · Aug 16, 2006

anthony05gt said:
They haven't released the big blower for the new stangs yet. It will be intercooled too. Supposed to be out soon.

TGJ, couldn't have said it better!

I still think your refering to the 2.3 L W140ax that is about to be released any day now. I have the black Intercooled kit on order and should be expecting it to ship within a couple weeks (so they say) I haven't heard of a 2.8 but it would be a nice surprise
http://www.whipplesuperchargers.com/product.asp?ProdID=1208

anthony05gt · Aug 16, 2006

You know I'm familiar with the 2.3's, but I've been hearing that they will be releasing 2.6 and 2.8L twin screws soon. Of course they would probably be replacement blower assemblies and not part of a specific kit. I've heard this from what I consider 2 reliable sources, but you know how that goes.

bigcat · Aug 18, 2006

the ford racing site does not even tell you any specs on the superchargers for S197s.

310stanger · Aug 26, 2006

i completely disagree on a roots style blower being more involved to install? i doubt that. in fact in nearly all centrifugal kits you have to remove the intake to change the injectors and do your coolant crossover change. we had to when we installed our paxton system. based on the power curves and the sick cars running the roots style blowers i cant see why any street car would prefer a centrifugal as opposed to the roots style. as far as justins car. yes he runs a centrifugal blower but he also has a built motor with ported fox lake heads. his blower is also a d1-sc not the p1 which most street guys are using. as far as the original question, u bet ur ass theres roots blowers for mustangs.

anthony05gt · Aug 27, 2006

Did not have to remove the intake for the Procharger install. Injectors take about 20 minutes to swap. Roots and twin screws are much more involved installs without a doubt. Justin is on his 3rd engine and broke more records with the first completely stock longblock than the other 2 built engines which have been nothing but a pain in his ass. I totally agree that a street only car would benefit from a twin screw or roots blower, but for the 1/4 mile, I'd go with a Procharger any day.

310stanger, who makes the roots blower for '05-up mustangs?

310stanger · Aug 27, 2006

magnachargers blower is a hybrid version of the eaton 112 which is a roots. i installed a paxton 1200 last year at work and the intake had to come off to do the coolant mod if i remember correctly. i always figured the roots/twinscrew would be less work but cant say thruogh experience. didnt mean to step on toes if thats what is perceived. the intake on a 4.6 3v is really simple to remove at any rate.

310stanger · Aug 27, 2006

i am very curious to know about justins engine failures as I read the buildup of one of them in mmff. hes one my mustang heroes i admire someone that always raises the bar. hes pretty much the king of 05s from what ive seen.

anthony05gt · Aug 27, 2006

The first "built" engine blew the head gaskets right out of the side of at least one head. The newest engine just blew the damn intake in half and destroyed the hood and other parts, but from what I here the longblock is ok. I doubt he'll be breaking any more records this season. That sucks because I like to see him take on the world. It's his willingness to squeeze every last bit out of a car that makes him a winner. The fact that he's out of control sometimes is also what keeps him on top. I hope I'm wrong about this season, but I don't think his luck is too good this year.

310stanger · Aug 27, 2006

i saw a pic of the stock long block he broke when he had broken piston in his hand. the motor they built seemed pretty freakin awesome, is he having tuning issues? he must have done some more radical cause i cant imagine a built engine being weaker then the stock motor. he even used a teksid block. now if he blew the intake in pieces hes apparently had a nitrous backfire. which means hes goin crazy with the juice. anyways i hope he gets it sorted out.

anthony05gt · Aug 27, 2006

He had a nitrous backfire that was pretty violent. I'm sure the built motors are plenty strong, it's just that he goes all out squeezing the piss out of any car he's driving. I actually haven't talked to him since it happened, so this isn't straight from the horse's mouth. I heard it from another JPC driver. I at least wanted to see him break his own 3-valve record of 9.53. I'll try to find a video link of that 9.53 pass and link it here.

anthony05gt · Aug 27, 2006

OK, I'm going to try to post a link. This is Justin breaking the record.

http://home.comcast.net/~wicked46/Justin_953_pass.wmv

Here's another pass the same night that's 9.58.

http://home.comcast.net/~wicked46/Justin_958_pass.wmv

That was done with the last motor that blew the head gaskets out the side of the engine.

toolttime · Aug 27, 2006

I use a roush blower which is a roots buit type blower with rotors that are twisted like the twin screw models. 110% hapry with performance and reliabilty so far.

centrifical vs roots

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start with the upper hole, and if more traction is

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