trickdriller

I am just about ready to buy a Vortech V2 system for my 97 GT. I am looking for anyone that has already put a blower on their car from these years to tell me what kind of difference it will make. I know it adds 100 HP, but that's at redline rpm's. I just want to know if I am going to feel the power increase from 1000 rpms to 6000 rpms. Basically, if I'm in third gear at 25 mph (with stock gears in the rear) and I step on the gas, is that car going to pull through it better than it does now? If it will, how much better? Anyone with a blower can answer this question for me, I suppose, but I also would like the insight from someone that has these SN-95 cars.

Thanks to all for the help.

8banger

Can tell you from experience,2500 to 2800 is where the blower starts to make BOOST...thats kinda why its so street friendly...drive it normal...runs the same as without a blower,,step into it and away she goes...gas mileage is pretty much the same way,drive it normal..it also will stay the same or damn close to it...so at 1000 rpm you ain't gonna know you have a blower on it..except forthe vaccum leak..whistle....

8banger

Also,with my 99 and v2 SQ gears,exhaust and tune.DR's and minor suspension..and 126k on the motor,....best was 12.29@113...<img src="images/smilies...neimg" />...so your gonna like it IMO...

silverstang1996

well with a 96-98GT you won't make incredible HP with just a S/C at regular boost without a PI swap, but then using a PI swap it will increase compression, which tossing a S/C ontop of it wouldn't be good..so if I were you I'd look into a PI swap and somehow lowering the compression, because with that you should be around 350-400rwhp if I'm thinking correctly, with a NPI(-96-98GT) motor, you would only be about 300rwhp or around there I'd believe, which isn't greatly impressive numbers with a S/Ced V8 motor.

trickdriller

Not that I'm calling you a lier, but I don't think that's right. Everything I have read since comming here has told me that with that motor, I can expect mid 300's in HP with a Vortech running 8 pounds of boost. At least,I certainly hope you're off the mark. If I end up spending $3000 on that system and get a tiny 50 hp out of it, I will be pissed. I'll look into it some more, but I'm pretty sure I can expect around 340hp. Also, if I get that system on there, I can add the blower cams, port and polish the heads and up the boost a little more and I'll hit really hight numbers. If I'm correct, I'll need to forge the bottom end before I do those latter things, though. Anyone know for sure what the HP rating is for this set up that I'm about to do?

Sxynerd

Haha are you serious? Yes you'll feel it...

V8Cody

A Vorteched 96-98 without a PI swap will put down 305-325rwhp.
A Vorteched 99-04 (PI motor) will put down 350-375rwhp.

trickdriller

That's what I figured. The shop said they can get 340 hp, but 325 hp isn't all that bad, I guess. The other option is to do the PI swap, but then I start putting the engine in danger. I drive this car every day, all over the place. I think I'd rather just get the 325 or so and be safe than do the swap and wonder when it'll go.

8banger

Straight from Vortech..keep in mind a GOOD tunerMAY extract alitte more...
1996-1998 Ford Mustang GT 4.6L 2V Supercharging Systems


Safely increase your GT's horsepower from 215 to 290 and torque from 265 lb./ft. to 345 lb./ft*.
High Output Supercharging Systems:
The increased boost level, high output supercharger system, features a fully integrated air to water aftercooler approach to charge cooling. This system will increase horsepower from from 215 to 323 and torque from 265 lb./ft. to 365 lb./ft.*
This is at the CRANK.....
With a PI swap...Kinda..
1999-2004 Ford Mustang GT 4.6L 2V Supercharging Systems


Safely increase your GT's horsepower from 260 to 364 and torque from 302 lb./ft. to 371 lb./ft*.
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2000GT4.6

IMO if you want to do a PI swap + blower what you should do is the PI swap, do the blower, and then run methanol injection. The methanol injection should compensate for the higher compression ratios, stop the motor from pining/detonation in other words, and you will make ALOT more power with the PI setup.

The PI swap doesn't increase the compression THAT much, the meth should more than compensate.

For your orignal question, yes you will deifnatly notice a difference, even down low. Although the centri style units don't start acutally making boost until around 3000ish RPM anything before that at WOT will be at zero pressure... that is no boost, but no vaccum either. Removing the vaccum from the engine makes a large difference. I made more power at 3000 RPM on a mustang dyno, which reads lower, than I did at any other point before (any RPM) on a dynojet dyno. I would say that I was probably making the same WHP at 2500ish RPM after the blower as I was at peak before it.