dyno please
dyno please
If one of you guys don't mind could you please run a desktop dyno for me.
390 .060 over
10:1 compression
Crane 343801 (most of you know the specs off the top of your head)
Performer RPM intake
750 cfm Edel. carb
rebuilt stock heads
1 7/8'' headers with 3'' collectors
MSD ignition (not that it matters for the dyno)
If someone can do it for me, thank you very much.
390 .060 over
10:1 compression
Crane 343801 (most of you know the specs off the top of your head)
Performer RPM intake
750 cfm Edel. carb
rebuilt stock heads
1 7/8'' headers with 3'' collectors
MSD ignition (not that it matters for the dyno)
If someone can do it for me, thank you very much.
Had to use automatic valve sizes. Advertised and .050 cam numbers produced identical sheets.
HP 339 @4500
Tq 422 @3500
-Scouder
HP 339 @4500
Tq 422 @3500
-Scouder
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Thank you very much, I was a little dissapointed with the hp, but very happy with the torque. hmm... if I could only get the hp over 400. I should have held out for the cobra jet heads.
This sounds almost exactly like my 390, except the cam is a little different and I have higher compression.
I'm amazed... pretty good low-end torque and an amazing amount of torque up past 5500 RPM.
Performer 390 Edelbrock with 750 Holley vacuum secondaries.
Ported C8 heads with CJ exhaust valves.
1 7/8" long-tube matched headers.
TRW forged pistons, for 10.5:1 compression, block decked, heads milled, just under 11:1
Cam: 292/292, 230/230@.050",.554/.554"
My machinist did the cam degreeing, and I wasn't able to be there at the time, so I only dimmly remember what he did, but I believe he advanced the cam 4 degrees to get better low-end ... whatever he did, it's got a lot of low-end for the cam, and not a bad idle as long as I run the initial advance at 20 degrees
Thanks for the pictures, they are very interesting...
I'm amazed... pretty good low-end torque and an amazing amount of torque up past 5500 RPM.
Performer 390 Edelbrock with 750 Holley vacuum secondaries.
Ported C8 heads with CJ exhaust valves.
1 7/8" long-tube matched headers.
TRW forged pistons, for 10.5:1 compression, block decked, heads milled, just under 11:1
Cam: 292/292, 230/230@.050",.554/.554"
My machinist did the cam degreeing, and I wasn't able to be there at the time, so I only dimmly remember what he did, but I believe he advanced the cam 4 degrees to get better low-end ... whatever he did, it's got a lot of low-end for the cam, and not a bad idle as long as I run the initial advance at 20 degrees

Thanks for the pictures, they are very interesting...




