Dyno the 306
well went to the dyno... numbers where not soo impressive
i only made 226.7 HP at 4.809 RPM and a max of 2.71 TRQ at 3300 rpm with open cut outs! but there is a problem.. the chart was going uphill strong but then went bad at 4.800 rpm and went down... i think there isnt enough timing... ill work the bugs out and go back it should make 260 atleast! http://i198.photobucket.com/albums/a.../Image0143.jpg see what i mean where it drops off at soo low of an rpm ?? |
So you built a motor that's no better then stock.
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are you seeing valve float? what was the AFR at? Whats the rest of the set up?
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Gt40 heads
Comp 35-351-8 cams with matching valve springs and retainers locks everything longtube headers Edelbrock Air gap intake holley 650 Dp |
wow, thats horrible.. i made 30 more HP on my stock untuned 15:1 AFR motor..
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exactly what i mean.. see the chart.. it was going uphill just fine then something went wrong.. where gonna chek the AFR and the timing and do it again...
better view http://i198.photobucket.com/albums/a...00118-1918.jpg the torque is instant! as soon as i WOT its at its peak |
were the spring installed at the correct height? or just put on?
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Originally Posted by uedlose
(Post 6759488)
were the spring installed at the correct height? or just put on?
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Valvetrain problems maybe, wrong plug gap, ignition problems, fuel delivery problems....could be a bunch of stuff.
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Originally Posted by 67mustang302
(Post 6759720)
Valvetrain problems maybe, wrong plug gap, ignition problems, fuel delivery problems....could be a bunch of stuff.
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