Might as well ask all at once. Can anyone confirm that my 75 Maverick has 28 spline axles. Im looking at new 3rd members. 3.55 and Detriot Locker. Any preferred vendors? Does anyone know what a stock converter stall is rated at? Im looking at a new converter. I dont want something thats going to break the tires loose easily but would prefer something thats low in the torque powerband to keep the tires hooked up better. I talked to a guy from TCI at the syracuse nats. I told him im building a 400 HP/Tq car that needs to be quick and wont be driven but a couple thousand miles a year at most, and he recommended a 10" comp that he said would flash at 3000. On the summit site, that converter say it flashes to 3800. Its part number tci 462000. Im thinking something much lower stall. What are your thoughts on stall rpms? Are anti ballooning plates necessarry? Thanks tim
should be 28 spline in an 8" rear. stall will vary depending on the car setup such as rear gear, tires, weight, camshaft, torque, etc. the text in summit is a generalization. if the tci guy knows his stuff and you told him your car data, his info should be more accurate. higher number gears decrease stall . a conv thats 3200 with 4.10s might be 3500 with 3.55s. if stall is higher than rpms where you do most of your driving then more heat is generated and more gas is used. what do you really want to do with this car? i have a mav with 3200 stall. at 60mph on the beltway i am doing about 3400 rpm. locally, i use 2nd gear a lot to keep revs up more, but i dont put a lot of miles on it. balooning plates probably not needed at this performance level.
stock axles in the maverick are 28 spline. i use moser axles. they're all pretty good. moser, currie,strange,mark williams. i thing currie has a catalog that has a pretty good selection for the street. someone else will probably have to tell you what a stock stall is. i would guess about 15-1700. tci has some stalls for the street in the summit catalog, about 2500. anti ballooning plates aren't necessary unless your building a pretty stout motor. best thing to do to figure out what stall convertor you want is to call the company and tell them what you have. they'll want to know what hp you have, gears, weight, intended use etc.
i'd be happy with that, too. i'm assuming the package is that 75 comet with the 331 in your signature? fairly heavy car. maybe 3300 with the a/c plus driver. i'd probably think about at least a 4.30 gear or more with about a 4000 stall converter. 10 x 28 tire. think about aftermarket axles somewhere in the future. also probably frame connectors before you start twisting the frame.
I got mine from http://edgeracingconverters.com/ Andre there was great to deal with. No feedback yet because the engine goes in the 27th. They are, however, highly recommended by all the mustang guys in my area (competing with PI converters!).
Ill give Edge a call and see what they say. My car wont have the A/C crap on it, the front and rear bumper have been lightened, and aluminum intake, heads, pistons, water pump, plus 4 miles of smog hoses and emission garbage should cut the weight down some. I weight in at 160.
Every 100 lbs = an effective 10 rwhp... Start purging! Get down to 60 lbs and gain 10 rwhp! :evilsmile Seriously, if you don't mind the slight inconviences: Strip out insulation under carpets and anywhere else you might find it. !spare tire. Battery to trunk. (no weight loss, but moves the weight to a much better place) !A/C. !P/S. !smog. Aluminum rims. (keep it around 15", larger rims are heavy) Fuel cell or small tank. !washer bottle. !radio/speakers !interior parts (if you are determined) Aluminum radiator (late model salvage yard) Aluminum driveshaft (late model salvage) Cut beams from doors (except driver's door if safety concern) Totally gut bumpers. Fiber body parts ($$$$) I know I repeated some stuff listed earlier in the thread. Just keeping the list straight in my own head. "!" before an object is message board speak for "deleting that object totally". Dave Edit: Electric fans don't really lose weight, but can gain 10 hp easy if you delete your mechanical fan. Aluminum water pumps help too. I got a fan from an Olds Achieva, but the same fan is in many mid-smallish late GM cars. It is a serious strong fan, about 16". Cheap from u-pull yards.
I am not sure how accurate of a measurement this is, or even how different they are from car to car (not to mention if wear affects it), but when I stomped mine with the brake on, it "stalled" at 1800 rpms. That was with both the 2.79 and 3.80 gears. "stall" in this sense means that the engine accellerated to 1800 before either the wheels started to turn or the engine could not go any higher because the wheels are locked up by hard braking. So, with that in mind, I was/am launching at 1800 rpms (nowhere near my power band!) This is probably not the true way measure stall, but probably gets you into the ballpark.
