Now that my exterior mods are all done, I'd like to start thinking about more serious performance mods. My current mod list (see signature) is very short. What I'm wanting to do is be able to produce about 400-425 rwhp w/ out a lot of extra engine modifications. I'd like to do this and keep the rest of my engine stock. I'd like everyone's suggestions. I've researched blowers, superchargers, turbo's etc and I still don't know which one would be the best for me. Again, I'm trying to keep costs down as much as possible and keep from having to change gears, etc......... I know 400-425 hp isn't a lofty goal by any means, but I'd be completely satisfied with it. I'd really like something that would give me a lot of low end torque off the line and keep on pulling throughout the midrange as well. Thanks in advance for your suggestions and your help.

Also, what kind of $$$$$$$ could I expect to spend.......I'm just lookin for ballpark figures here.

 

supercharger. im biased but go kenne bell best bang for the buck.

 

Definatly, if you want to keep low end torque stay away from any centrifical unit. I've driven many different Vortech's and Paxton's on the 3v's and below 3000 rpm's you wouldn't even know it was supercharged.

You can get in on a Saleen or Magnacharger unit for around 5G too.

 

Anything twin-screw will do.

 

i say kennebell most reliable and well known

also get every bolt on u can think of

 

We have heard that before. Once you get to 425 you know you will want more.

 

You'll have to supercharge your car,

At 415 RWHP, I think the rods could be in danger

 

super charger

 

Sounds like a supercharger is in your future

 

rods in danger at 415 RWHP???
C'mon so many of us are running more power than that without a problem.
The Kenne Bell kit puts out more than that without changing pullies. There are lots of KB blown cars out there on stock shortblock.

 

I'm very partial to what I have, which is a Roushcharger. I think you could reach that figure with a 7 psi pulley, which Roush will eventually release (and Steeda is working on an upgrade as well). The 5 psi kits have been putting out 355-370 rwhp (with a few examples making a little more), but I suspect the tune is pretty conservative. I'm going to dyno mine after a few more miles and some cooler temps (non-100+ degrees). Since your hp goals are not that lofty you should consider taking advantage of the superior attention-to-detail that the Roush system has to offer, especially if concerns such as that are high on your list. Their close association with Ford powertrain development shows as the kit is very OE looking and fitting. Due to the conservative nature of this kit, it's certainly not for everyone but I thought in your case it might be worth looking at.

 

Is that really a bad thing? Seems like having the ability to stay out of the boost would be a good thing for a daily driven street car. After all, doesn't that mean less wear and tear on the clutch, tranny and differential?

I've been asking myself this same question, and as it stands right now I'm torn between a positive displacement blower and a centrifugal model. As much power as turbos are capable of, I don't think that's in the cards for me. Too much temptation to turn up the boost and subsequent damage.

 

Yes, there are many healthy motors making good power, that is true. But happens you know. Because of a catalytic converter failure, my rods let loose at under 400rwhp, and with virtually no timing in the car.

And as I've said many times before: If you want to play, be prepared to pay!!

 

During normal street driving, a PD blower isn't in boost at all. My boost/vac gauge shows vacuum (not boost) most of the time. It can pull away from a light nice and mellow, or cruise down the highway like an N/A car. But when you mash the loud pedal, it comes on strong at all rpms, unlike a centri unit which builds boost with rpm.

 

One thing to mention is that the 5 psi Rousch supercharger will cover your 36,000 mile/3 yr warranty on related damages. Then after that period you can swap out the pulley for more boost.

 

I second this. KenneBell or Wipple would be my choices.
Scott

 

After you have blown up one come back and give your opinion. PLEASE!!!

 

Plus you've got 3:73 gears, which already gives you some low end grunt. I know for me, when I go the SC route, I'll want something that stays pretty docile off the line for normal driving as the gears already take care of getting me out of the hole pretty well. But as said earlier, once you hit the go pedal, that's when I want the boost.

With taller gears, wouldn't that be the preferred method? Sounds reasonable to me, but then again, I don't know jack.

 

I know I'm the one asking for the advice here, but that makes sense......doesn't it????????? Anyone? anyone?

 

You should go with the one you think looks the coolest. I like the Saleen myself. Even though you can't see it that well. I like the intercooler placement and, the way the inlet goes over the top.