Computer dyno
Thread Starter
|
Junior User
Joined: Jul 2001
Posts: 61
Likes: 0
From: Riverside USA
Computer dyno
Can't remember how did the computer dyno, thought it was Rat Killer?
Anyway got about 800 miles on my 423, going for the chassy dyno @ 1200 miles. Kinda wanted to compare next week with what you got.
352/390 block- 428 crank 4.115 bore/3.98 stroke (bout 423.5)
comp ratio 9.156
JE pistons 255 D- shaped recess
deck high .005
ring gap .018 top .018 second
Comp Cam .494 lift 218 @ .050 - .268 adv 110 lobe center intake centerline 104
70cc heads 2.09 intake w/30 degree seat
1.65 exhaust w/45 degree seat
bowl reworked + bronze guides and unleaded seats
Crane springs/retainers/locks
Isky ball bearing lifters
msd 6A/billet dist timing initially set @ 36 degrees
bosch platinum DR8bpx (2 steps colder than stock)
Melling Hv oil pump/block oil passages enlarged to filter boss
same with the crank and cam - Fel pro "O" ring head gaskets
holley 750 DP with 74 fronts 78 rear
C6 built by ATO 10 inch torq 1800 stall speed 1st and second gears lowered and added gear vendor overdrive(for the freeway) 393 detroit locker with 16.5 goodyear truck tires
Would like a readout if you can....
1QWIK75... it does live up to its license tag..<grin>
Anyway got about 800 miles on my 423, going for the chassy dyno @ 1200 miles. Kinda wanted to compare next week with what you got.
352/390 block- 428 crank 4.115 bore/3.98 stroke (bout 423.5)
comp ratio 9.156
JE pistons 255 D- shaped recess
deck high .005
ring gap .018 top .018 second
Comp Cam .494 lift 218 @ .050 - .268 adv 110 lobe center intake centerline 104
70cc heads 2.09 intake w/30 degree seat
1.65 exhaust w/45 degree seat
bowl reworked + bronze guides and unleaded seats
Crane springs/retainers/locks
Isky ball bearing lifters
msd 6A/billet dist timing initially set @ 36 degrees
bosch platinum DR8bpx (2 steps colder than stock)
Melling Hv oil pump/block oil passages enlarged to filter boss
same with the crank and cam - Fel pro "O" ring head gaskets
holley 750 DP with 74 fronts 78 rear
C6 built by ATO 10 inch torq 1800 stall speed 1st and second gears lowered and added gear vendor overdrive(for the freeway) 393 detroit locker with 16.5 goodyear truck tires
Would like a readout if you can....
1QWIK75... it does live up to its license tag..<grin>
Post Fiend
Joined: Feb 2001
Posts: 6,624
Likes: 8
From: Missouri
Computer dyno
I'm guessing around 325HP though and close to 500ft lbs of torque. That cam is almost stock but the rest of the engine is definitely going to make as much power as that cam will let it. You will definitely have problems keeping the tires from spinning though.
Computer dyno
Post Fiend
Joined: Feb 2001
Posts: 6,624
Likes: 8
From: Missouri
Computer dyno
http://www.clubfte.com/users/ratsmoker/1quik75.gif Here is what it spit out man. I'm kinda confused a little about your setup. 45 degree angle valve seats are good for high lift cams but flow worse at low lifts than 30 degree seats. Doing exhaust work to the heads is where its at though man.
Thread Starter
|
Junior User
Joined: Jul 2001
Posts: 61
Likes: 0
From: Riverside USA
Computer dyno
Thanks Ratsmoker for the report, you are right about the cam.. when the engine was being built I didn't want it to radical at idle, but now with the C6 stall speed, could've gone a little more, Was thinking around 400 or 425 hp,, the torque is fine, plenty of sling shot outta the hole just like was planned. But the the nice things about cams in new engines they can be swaped,,
..!
Have the EB street perfomer intake forgot to list that, how about a suggestion on the cam grind...can change it now with just 1200 miles on the crane now in it..
1QWIK75
..!Have the EB street perfomer intake forgot to list that, how about a suggestion on the cam grind...can change it now with just 1200 miles on the crane now in it..
1QWIK75
