E58 400 plus HP Dart sport build
I am enjoying the car now. Couple things I would do differently so here we go.
190CC heads
Roller cam conversion more money but maybe someday
Phased the cam forward and not at zero for driveability on street when installed the lope at 1100 rpm in overdrive and 40 will get you nutty
Started out with a Pertronix distributor ignitor 3 in the first place
Had my 850 Holley tuned by an expert prior. 5 emulsion circuits now and not 3 lesson learned on why and power valve matched better. Sharpton racing NE Oklahoma got that dialed in.
CAM
Maybe I could have gone with a 110 phased cam instead of the 107 little lopey but long as your 1500 rpm crusing or better it's fine. The ZF 8 speed sport or track mode or manual shift it's fine only economy mode in town lol will drive you bonkers. Highway at 81 mph at 2100 non issue and 20 plus smiles per gallon. Amazing highway and to fast for my own good.
Forged pistons - here is why boost not a safe or good idea on KBs do I need it no lol
Stroker maybe later debatable it has so much torque already I have broken a leaf and two shocks. Prior to full frame connectors is when I broke things. Now if I get to much grip it will axle hop done this twice and it's gawd awful. 8.25 rear so far no complaints little to narrow messes with my tire and wheel choice has to go but 2.94 gears are perfect with the ZF 8HP70. I know the torque is high as the controller can read it directly from output shaft 8hp70 trans stock is rated at 550 foot lb
Now let's talk stall and launch, does my car have lag will a lesser car and cam say 268 energy cam catch me? No not a chance in hell. If I dont hook and toast them yes any car has a chance.
This car off the line with a trans brake built into ZF it's amazing. The 3 speed was fast 727 no doubt but I gained at least two seconds not kidding in a quarter mile easily with the ZF. You can literally floor it from a stop to 100 MPH and it may wiggle a little here and there. Shifts come in at 6300 rpm with rev limiter set at 6400 the car is incredibly quick.
I credit the launch to frame rails and the tuning done in shift tables from Ma Mopar and Russel Drake at Sound German Automotive. These mid to high range cams are something else and for a non stroked engine she will rev comfortably to 7k no valve float. No reason to as cam is 1500 to 6400 and set my redline rev limiter by that guideline.
Comp claims a 2800 stall is needed and that is what a 2020 6.4 liter ZF transmission scatpack car is equipped with I'm told. Its still a bit lopey at stop light but not like 2400 to 2600 stock 727 converter. It's not rocking and rolling idling by any means in gear. 1000 rpm idle is very happy.
I'm not 100 percent sure on HP but all the guys around here in my area and builders think I over achieved on the HP goal. More around 450 or so they seem to think. I may dyno in Tulsa as I am curious same time I dont want them jacking up my car in process. The build I followed was a 420 HP build. However I bumped compression from stock to 11 to 1 by testing it. I also did a much bigger cam and a 1.6 roller rocker assembly along with much higher CFM to feed it.
Picture of the ZF 8HP70 8 speed transmission and new exhaust in now.
I am enjoying the car now. Couple things I would do differently so here we go.
190CC heads
Roller cam conversion more money but maybe someday
Phased the cam forward and not at zero for driveability on street when installed the lope at 1100 rpm in overdrive and 40 will get you nutty
Started out with a Pertronix distributor ignitor 3 in the first place
Had my 850 Holley tuned by an expert prior. 5 emulsion circuits now and not 3 lesson learned on why and power valve matched better. Sharpton racing NE Oklahoma got that dialed in.
CAM
Maybe I could have gone with a 110 phased cam instead of the 107 little lopey but long as your 1500 rpm crusing or better it's fine. The ZF 8 speed sport or track mode or manual shift it's fine only economy mode in town lol will drive you bonkers. Highway at 81 mph at 2100 non issue and 20 plus smiles per gallon. Amazing highway and to fast for my own good.
Forged pistons - here is why boost not a safe or good idea on KBs do I need it no lol
Stroker maybe later debatable it has so much torque already I have broken a leaf and two shocks. Prior to full frame connectors is when I broke things. Now if I get to much grip it will axle hop done this twice and it's gawd awful. 8.25 rear so far no complaints little to narrow messes with my tire and wheel choice has to go but 2.94 gears are perfect with the ZF 8HP70. I know the torque is high as the controller can read it directly from output shaft 8hp70 trans stock is rated at 550 foot lb
Now let's talk stall and launch, does my car have lag will a lesser car and cam say 268 energy cam catch me? No not a chance in hell. If I dont hook and toast them yes any car has a chance.
This car off the line with a trans brake built into ZF it's amazing. The 3 speed was fast 727 no doubt but I gained at least two seconds not kidding in a quarter mile easily with the ZF. You can literally floor it from a stop to 100 MPH and it may wiggle a little here and there. Shifts come in at 6300 rpm with rev limiter set at 6400 the car is incredibly quick.
I credit the launch to frame rails and the tuning done in shift tables from Ma Mopar and Russel Drake at Sound German Automotive. These mid to high range cams are something else and for a non stroked engine she will rev comfortably to 7k no valve float. No reason to as cam is 1500 to 6400 and set my redline rev limiter by that guideline.
Comp claims a 2800 stall is needed and that is what a 2020 6.4 liter ZF transmission scatpack car is equipped with I'm told. Its still a bit lopey at stop light but not like 2400 to 2600 stock 727 converter. It's not rocking and rolling idling by any means in gear. 1000 rpm idle is very happy.
I'm not 100 percent sure on HP but all the guys around here in my area and builders think I over achieved on the HP goal. More around 450 or so they seem to think. I may dyno in Tulsa as I am curious same time I dont want them jacking up my car in process. The build I followed was a 420 HP build. However I bumped compression from stock to 11 to 1 by testing it. I also did a much bigger cam and a 1.6 roller rocker assembly along with much higher CFM to feed it.
Picture of the ZF 8HP70 8 speed transmission and new exhaust in now.