What would y'all recommend what manufacturer for a stocker Maverick for the best torque converter in this class we're looking at 48 - 5200 stall speed
It doesn't matter the manufacturer; 48-5200 is way too much stall speed for a stocker 302. Assuming 302 is the engine. More like 2,500 would be a better number.
I would think more like 1800/2000 for a stock 302. Don't over think this were talking 220 hp at best.
I'm talking about the NHRA stocker with a cam with bout a 3:20 to 3:30 duration cam limited on Lift. Plan on running a c4 290st gear 456 gear with 9 inch slick.
Yeah back then a 250 six had almost as much torque and horsepower as the 302 especially in the later years.
Popular belief but it only took some minor backyarding to restore the lost HP on the 302... Note Figures changed from Brake Hp to Net HP after '71, or what engine made installed at output of transmission instead of naked on a dyno... Needless to say pre '72 figures are VERY optimistic... To save space I incl every other year... 1971 302... 210Hp/296Ft Lb 250... 145Hp/232Ft Lb 1973 302... 141Hp/242Ft Lb 250... 99Hp/184Ft Lb 1975 (Note figures varied by model, included highest & lowest) 302... 122-129Hp/208-220Ft Lb -- Calif 115Hp/203Ft Lb 250... 70-85Hp/175-180Ft Lb (Calif incl) 1977 302... 122-134Hp/222-245Ft Lb 250... 86-98Hp/182-190Ft Lb (manifold log and valve size increased in '77)
Numbers are deceiving, percentage wise figures still had similar ratios... 1971 ... 250 made 69% of 302 1973 ... 250 made 70% of 302 1975 ... 250 made 61% of 302(low figures) and 65% of high figures 1977 ... 250 made 70.5% of 302(low) and 73.1% using the high figures... The 250 only really gained ground when it received a new head in '77...
I watched many of the automatic cars race at MIR yesterday,& the ones with lower stall speeds just got killed of the line.For the first 30 ft just looked like the rear tires were in slow motion,several of the cars didn`t even spin at all.Most of the higher stall cars,even the foot brake cars,just took off like a shot & ran real well.As most of the experienced guys on here have said,the right stall is everything if you are going to be successful.Pro Stick was also racing & they were hooking so good that they were actually digging up the track.Every time they ran they had to reprep the surface.
On my 347 I ran a 2800 stall this year,,next season I will run a 4800,,,I was told it should pick up 3 10ths in quarter
whos cam are you using, and what did he suggest for a converter stall? Im not sure what that engine is going to run for rpm, but I would find out that info for your cam, and call PTC for a converter, they have become the goto for the converters in the stocker world. Im not gonna say 5000 is too much stall yet, but Im thinking that engine will be done rpm wise in the low 6000 range at best. good luck
Someone on our forum mentioned you want a stall speed about 500rpm less than max engine torque.This would make sense because you are almost at max pull out of the mtr & after the car starts moving you would grab 2nd right away.Regardless of whether you are using a stick or an auto. you do not stay in 1st very long.
