Drag Racing Discussions > Front Engine Dragsters
Injected FED's launch rpm
wideopen231:
About ready to get some hits in,once can get car to track. As with all its guess or swag figuring where to start with tune up. Fuel I think I know where I am at,thats a swag. FED tuning is new. Now if it where blown hemi with 14-71 or screw blower and hays 6 finger clutch I would be set to go. 6000 and let rip. Launching FED with PG is little different.LOL Wondering what some of you are launching at. I know it runs up to stall and thats not changable,well not with chip or foot. Please give little combo info with reply.
I'm guessing 3500 to 4000 chip in two step And use foot to keep just below till second bulb has been on while.
Combo is 225 ",1.69 low,4.10 rear,526 hemi about 1050 hp and god help me no blower,first car in 25 years w/o one.
Oh 15x15x32 M/T tires. Yes I do have wheelie bars and plan to use them.
buickfed:
holy moly...1050hp. impossible to make with our little s/c 350 buick. lol.
with our 50 yr old Gilmore chassis, p/g, 4.10's and 33x10.5-15's we launch at 3600. tried 4k and the chassis just tweaks all over the place. looks real ugly doing it.
we are knocking on the 8'er door. 9.02 & 147 so far.
wideopen231:
hope my 6 yo never run down track tube behaves better.LOL
gregm784:
I"ve heard stall minus 500 RPM is most aggressive launch. I leave about 5000-5200RPM, converter stalls at 6200. I use RPM to tune my lights.
wideopen231:
well 6000 means non aggressive with 6600 stall?
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