So 408 with 205 afr heads and 228at .050 near .600 lift HR Made 571 hp and 528 tq ? Dual plane Add a little 150 shot at 3000 at the strip and hang on I’d really like to know the cam part number or specs
With a high lift low duration, springs have got to be very stiff right? Do you notice at high rpms valves floating? Are the roller lifters holding up ok? So many questions, valve closes while piston still on the down stroke? Seems like power gains would suffer under these conditions. Great video thanks
Custom cam or off the shelf? Serial number to get more info on valve events? Duration only really relates to rpm range while actual torque and ho numbers are highly dependent on overlap, Intake valve closing, and exhaust valve opening. 2 cams with identical "duration" can have a massive dynamic compression difference and power difference.
well thanks for throwing us a Bone ,but do you have any idea just how many early broncos / Bigger broncos/ f150/ f250s are out there with 302/351 w/,we are asking for a real life everyday cams,210/228/ duration,490s/525s lift ,110/112 lsa,,this is what we call a smaller cam not 240/600,,thanx a bunch
Hmmm... I'm thinking this motor would make one fun street cruiser installed in a Fox body Mustang. With that torque curve I wonder how much stall would be needed in the converter to make it streetable?
Sounds like CHP is run by different personnel, then when I bought my 427W. When i received mine, the passenger side head was not torqued down. I called and the person from CHP said "We don't torque the heads" to which I replied "Then why was the driver's side head torqued".
look at the RPM theres a lot more to it than duration. cam guys will tell you this. thats why you get the least amount of duration for the amount of lift without snaping the valves open and closed too fast
duration has a lot to do with RPM. and if thy have about the same lift as long as you dont go to short on duration, why get a bigger duration cam? this engine on the street would be great with the smaller cam in a car like my zephyr
@@maximusvonce1381 what theyre saying is you dont need to spin 7200 on the street. 6200 is more than enough out of a stroker windsor in a fox body. you'll probably walk just about every other car out there with this engine.
Great videos on this 408W! Thanks for posting your testing results!
we love what we do!
Wow not much difference at all.
Appreciate all the testing guys thanks for sharing this.
thank you!
Love it!! And Martin great commentary and a👍🏻 for turnin the Dyno pump inhibitors!!!
So 228 cam had same exact hp and tq curves as 240 cam? Dyno may need to be recalibrated
So 408 with 205 afr heads and 228at .050 near .600 lift HR
Made 571 hp and 528 tq ?
Dual plane
Add a little 150 shot at 3000 at the strip and hang on
I’d really like to know the cam part number or specs
What cc AFR 205 heads would you recommend for a 408w daily driver build ? 58cc or 72cc AFR 205’s ? Thanks
With a high lift low duration, springs have got to be very stiff right? Do you notice at high rpms valves floating? Are the roller lifters holding up ok? So many questions, valve closes while piston still on the down stroke? Seems like power gains would suffer under these conditions. Great video thanks
What is the lobe separation on these two cams ?
The same graph reading on torque comes from the intake runner volume being closer to the shorter duration cam
Custom cam or off the shelf? Serial number to get more info on valve events? Duration only really relates to rpm range while actual torque and ho numbers are highly dependent on overlap, Intake valve closing, and exhaust valve opening. 2 cams with identical "duration" can have a massive dynamic compression difference and power difference.
Not our camshafts to give out specs, cams were returned after the dyno session but nonetheless shows what can be made.
well thanks for throwing us a Bone ,but do you have any idea just how many early broncos / Bigger broncos/ f150/ f250s are out there with 302/351 w/,we are asking for a real life everyday cams,210/228/ duration,490s/525s lift ,110/112 lsa,,this is what we call a smaller cam not 240/600,,thanx a bunch
It would be great if we knew the compression ratio?
10.25:1
Would you say that cam is close to z303 and x303
Hmmm... I'm thinking this motor would make one fun street cruiser installed in a Fox body Mustang. With that torque curve I wonder how much stall would be needed in the converter to make it streetable?
Just run a 5spd.
Sounds like CHP is run by different personnel, then when I bought my 427W. When i received mine, the passenger side head was not torqued down. I called and the person from CHP said "We don't torque the heads" to which I replied "Then why was the driver's side head torqued".
You guys around still?
Awesome info
thank you!
434 in with 210 cc heads let's see the power
Let's see the cam in a 427-434-or especially a 454. 210 cc heads on a 427. 215 cc heads on a 434. 220 cc heads on a 454
Build sheet?
What intake does this engine has on it?
Super victor efi version.
Whats the lift on the short duration cam
about .600
whats the total timing?
28, the more efficient, the less timing you need.
@@coasthighperformance was the timing the same with the bigger duration cam as well?
How does a 224 cam have the same hp and tq curve as a 240 cam? Especially on a big inch sb. You cant even get diff intakes to do that.
look at the RPM theres a lot more to it than duration. cam guys will tell you this. thats why you get the least amount of duration for the amount of lift without snaping the valves open and closed too fast
I'm sure since you all build engines you realize saying 228 degrees of duration tells hardly anything so what are trying to show/say with this video?
duration has a lot to do with RPM. and if thy have about the same lift as long as you dont go to short on duration, why get a bigger duration cam? this engine on the street would be great with the smaller cam in a car like my zephyr
well, I wouldn't be happy with a motor with that much gear in it falling on its face @6200
What gear? Racing engines need more RPM, street engines not so much.
@@coasthighperformance Shit my fuel injected 438windsor street car spins to 7200rpm like a swiss watch
@@coasthighperformance I like high rpm on street. At least 7200rpm. My car fine at bottom too cause 4k stall.
@@maximusvonce1381 what theyre saying is you dont need to spin 7200 on the street. 6200 is more than enough out of a stroker windsor in a fox body. you'll probably walk just about every other car out there with this engine.
@@KingJT80 Well my car likes 7200rpm