Powerdyne on a stock 302 w/ 124,000 miles Ok guys, for the longest time i've been planning out my 331, afr 185s the whole nine yards. But damnit shyt is tooooo expensive and I want more power now! Besides this is probably gonna end up my daily driver/show car. I'll plan out my stroked stang later on, when I have the cash and will plan on making good use of those cubes rather than nothing but a basic drive through town. So here's the question, I really don't want to have to rebuild my block or anything, I've got a basicly stock automatic 90 GT 124,000, bbk cold air intake, mac flowpath mufflers, (brand new flowpath longtubes and a used mac off road h pipe are sitting in my room waiting to be put on ( which rules out going turbo route), as well as a set of 4.10's.) I figure a powerdyne seems like the easiest setup to go, althou I would like to hear it whine, because I want to install it myself. With all that said, if I have the complete exhaust on the gears put in and a powerdyne tossed on what would a safe boost range be so I don't put too much stress on my block? i'd like to get as much power out of the block without worrying about hearing something break everytime i get onto the parkway. Also, Am I able to use the cold air intake tubing with it or is the tubing they provide better anyway(this is more out of curiousity than noobity, althou i guess before i posted i should've gone back and read all my info on supercharging but i'm at school so i can't really do that)? What other mod's would I need to do to my rear, block, transmission, to insure that my car will hold together well? I don't really beat on it badly, no neutral drops or anything, just an occasional stomping on the pedal every once in a while to slam myself and my passengers back into their seats.
Upgraging your old and tired fuel pump would be a must-do. You can get a 255 pretty cheap, and they are pretty easy to put in. Also an afpr and a good tune, and you should be pretty safe as long as you are smart.
i have a vortech sc.............i paid 1667 for the kit and it is a very loud blower.........screeching at idle and everyone will know what you are packing....if your compression #'s are good boost is possible i had a 5.0mag....and a guy with a 130k stock short block never outta the body with a s-trim is hitting 10's!!!!!!!!!!!!(has heads and intake of course) in his lx......i wouldnt go 4.10's with a blower..... you want more R's.................3.55 would be great...........also the stock stall is gonna hurt you bad.......you could see 5psi with a vortech kit...my motor is almost done i am geting my afr185's soon........and my combo will makke low to mid 5's to the wheels easy......... P.s. you cant use the CAI a cheap piece comes in the kit......upr makes a 4" one they say will increase boost 1-3lbs....i plan to use the upr piece and route a BOV into it.
ok first off, wha'ts afpr stand for? second, i'd heard that the 4.10s work great in aod's, is there anyway i could toss them in and just beef up the rear or does it have to do with something other than the rear not being able to handle it? keep the advice commin guys, what kind of numbers you think i'd be putting out with a stock block and a powerdyne, one of thoze 9 psi onez.
Stock 120k mile block here and 10k miles of that are already blower miles... still running great! I'm running 10psi right now with only a 2.87" pulley and the UPR Powerpipe (wise investment for $100) with an SC-Trim. With ported stock heads, stock cam, and typhoon intake i'm makin the #'s in my sig. Without all the engine work i'd say you will be around 330-340rwhp with 9psi on an all stock motor. BTW- Get a Walbro 255lph High Pressure fuel pump. It's more than you'll ever need! AFPR = Adjustable Fuel Pressure Regulator. You don't really need this as I didnt when I installed my Supercharger but it doesnt hurt to get one. Get the Kirban Regulator as its one of the best ones made and ironically one of the cheapest.
Mileage alone isn't the issue - there are both strong and weak engines with 125,000 miles on them. I'd run cranking compression and leak down tests to be sure of the integrity of cylinder seal before I added the boost. If all checks out, no reason to be too concerned with the mileage. The other thing to think about is how the 125K tranny is gonna hold up to being asked to deal with another 100 or so HP. Remember - when you add power, all the weak/tired bits will start to show up. So be sure you've got enough funding to deal with any of that other stuff. Think of gearing this way - gears multiply torque. The reason they work so well in many naturally aspirated set ups is because as power/revs increase, bottom end torque decreases. Gearing helps solve that. With boost on a basically stock motor, you're not gonna lose much (if any) on the bottom, and as soon as boost starts to build, you'll have mountains of torque. You simply don't need as much gear if you've got lots of mid-range torque - traction may be a real issue with that much gear and 9# of boost. If I were in your shoes, I'd try it first - just know that you may end up wanting to drop back to 3.55's.
I thought I had read in another thread that the psi/hp ratings are different in each sc from models n brands. like 9 psi out of a vortech would give you a different hp rating than 9 psi out of a powerdyne, is this true?
Ne1 got an answa ta my last question? n second I was readin round bout how sum guyz could hit 13z or even 12z with a stock block, gears, and suspension mods, say I tossed on the powerdyne sc, what other mods would I need to do to hit 12's preferably 11's but Idk if it's possible or not. And yes I know I'd need practice! what are the minimum mods i'd need to do in order to make it? Keep in mind this is not a track car, and it is daily driven so I need a comfy ride.
well yes 4.10's are great in a N/A auto where you dont have to worry about the R's so much but you need to stay in the gears longer to make good boost with the s/c.
i am putting down 350 hp and 375 tq on a stock motor witht he exception of 9.5 pounds of booost in a vortech A trim and a TFS upper and lower itnake
88stangman I was checkin out your car, really nice. I'd advise against gettin the bbk intake thuo, u should read that 1 thread on here bout it (if u haven't already)
Yes the amount of boost in different superchargers does make different power. 10 lbs of boost from an A trim will always make less power than 10 lbs of boost from an S trim. Reason being that the S trim was design for that boost range and is more efficient. It pumps out more cfm of air and does so at a cooler temp because it doesnt have to spin as much. With an A trim you'd have to overdrive it to achieve 10lbs and in doin so you create alot of heat. PowerDynes are not the best at creating boost and are best suited for low boost applications. Once you start overdriving those units and building more boost they become very innefficient. Not to mention that those belts they are run off of start to snap when you ask too much of it (more boost than it was intended for). I recall reading you wanted to hear blower whine, well as i recall those units dont really whine much because they are belt driven. The whine you hear from superchargers are from the gears. Chargers with straight cut gears are the LOUDEST and the others that are angled produce a pretty good one.
Yea I know that about the powerdyne but it's because of the belt I figured i'd want it. That way you don't have to tap into the oil and I wanted a nice easy installation so I figured i'd go with it. They sell three versions 6,9, and 12 psi. If I bought a 9 psi one and ran it at 9 psi would that be putting too much on it? Would I be better off getting a 12 psi one and running it @ 9? n thanx for clearin that up nito.
