forced induction

[VENOM04]

procharger or kennebell that is the question? So i hear that even though the 01 cobra and the 03-04 Mach1 have the alluminum blocks, un-forged guts and higher commpression what psi should i go if i dont build it or would i be better off just putting new guts in it first. and if so what kind of pistons and rods im open for any suggestions.

 

[VENOM04]

oh and beings that the comp. ratio on my cobra is so high, should i lower it to compensate for a blower or should i just leave it stock or maybe even raise it and then just run a lower comp. ratio?????

 

[imported_wickedstangs]

I goinng to let WICKED_SVT answer this one he has an 01Cobra with a Procharger..

 

[VENOM04]

that would be AWESOME

 

[Wicked_SVT]

It really comes down to what your budget is. If you can afford to rebuild the block and supercharge I would do that. I have the Vortech kit w/ aftercooler on mine and love it. It looks like OEM under the hood. As far as what blower to get if you can afford it go with the Kenne Bell. If I can do it over again thats what I would do. It will feel like you are driving a big block motor. You would get instantaneous boost with the twin screw blower. If you go with the Kenne Bell I would drop the comp ratio down to 8:5. If you are on stock internals 8psi would be safe. You can probably go 10psi with a very conservative tune.

The Procharger will be cheaper than the KB and comes with an intercooler. The Procharger is a centrifigul type supercharger and will build boost with rpms. The car will drive like it is naturally aspirated unless you get on it. If you do forged internals first and go with this setup I would go with a 9:1 comp ratio. You will need the higher comp ratio with this setup since boost isn't created instantly like the KB. The low end torque would suffer if the comp ratio was any lower. On stock internals again 8 psi is safe and 10psi with a conservative tune.

If you have any more questions let me know.

 

[VENOM04]

Sweet dude thanks.

 

[Sap]

With the Procharger or any Centrifugal S/C you have the option of not boosting all the time, which is great considering the gas prices. You don't boost until you go pedal to the metal, which honestly, will be most of the time anyway.

If your considering which blower to get, you might consider looking into turbos, they are more expensive I'll admit but they are better in a couple of ways, first off you don't have to worry about shredding drive belts, which is pretty common with stang blowers, regardless of twin screw or centri. Worth looking at if your hearts not set on a blower yet.

E.

"My Car has two Speeds, Park and Speeding"
03 Dark Shadow Mustang GT 4.6L Manual
MPH Mongoose Kit (Vortech S Trim, A/A Intercooler, Powerpipe)
Eibach Pro Kit, Tri-Ax, Flowmasters, 75mm TB / Plenum

 

[Wicked_SVT]

The problem with turbos is that they do not sell a CA smog legal turbo kit. If they did, that would of been the rout I would of took. I hate CA's Smog laws!

 

[Sap]

I was unaware of that, that is pretty crummy, and with such a complicated install you couldn't just uninstall it easily and go get smogged. Any idea specifically why there is no smog legal kit? I'm guessing because they dont use the EGR System and some or all of the Cat's go away with the install..

E.

 

[orange395w]

Take out that garbage 281 and drop in a pushrod motor!! J/K what Gary said is pretty much on the money. If I was you I would do the bottom end first that way you won't have to worry about how much boost you run. Just ask Gary, he used to race at qualcomm every other week when he was N/A. He got the blower installed and hasn't raced since. ) Point is, build the bottom so you don't have to worry your going to break it with a little boost. What fun is it if you have to worry about it 24/7?

 

[VENOM04]

true. i might as well do it thw right way the first time. better than replacing the whole engine. lol

 

[Foxman]

Well if you ask me i would go Procharger.... If you go on the mach1registry.com forum they have prochagers on just about all of them.. and the avg. about 450 rwhp.... with stock internals on 10.5:1 Compression.......If i remember right that cobra has 9.5:1 so if it has a steel crank like my mach i see no reason it can hand 10psi all day..... there is about 50 machs on that forum that do it all day long...

 

[wikedcobra312]

i was thinking of going with the kennebell, but it is so gosh darn expensive for the new edges.

 

[01VENOM03]

yeah dude but most of those dudes on the mach site prolly dont use the car as a daily driver. my cobra sad to say is my dd. i dont have another car yet. but if that was the case i would prolly jut slap a blower on it.

 

[StangKid]

Procharger

 

[01VENOM03]

+1

 

[wikedcobra312]

+1

 

[low_going]

i got a 99 cobra with stock internals with a novi 1000rr pushing 10 psi at 6800 rpms no intercooler with full exhaust (shorty headers) putting down 487 rwhp at a 10.9 to 11.0 a/f ratio and have had no problems. but i'm thinking if i did it again i would have to go with a kenne bell for the low end tq, with a cent. and 3.73's the low end still doesn't feel like it should til 3500 rpms or so.

 

[Foxman]

99 cobra is the 4 valve right.... thats just the way the high compresion 4 valves are.... they LOVE High RPM!!! Kenne bell would have help a little, but not as much as 8.5:1 compression..

And i have to say Nice NUMBERS!!! what was torque? like 450?

 

[Foxman]

oh and beings that the comp. ratio on my cobra is so high, should i lower it to compensate for a blower or should i just leave it stock or maybe even raise it and then just run a lower comp. ratio?????

**** a blower just throw a 125 shot on it......Nitrous loves higher compression!! and its not anymore dangers then a blower or well bolt on motor