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Old 05-23-2008, 03:01 PM
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ignition???

hi... will a stock gm hei distributor with only accel super coil,and accel control module with accel u-groove 8mm spark plug wires,and u-groove shorty header spark plugs...like...will they handle...320-405hp...???or will I need a 6a msd ignition for highperformance street...???
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Old 05-23-2008, 03:17 PM
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Quote:
Originally Posted by jkingof9561
hi... will a stock gm hei distributor with only accel super coil,and accel control module with accel u-groove 8mm spark plug wires,and u-groove shorty header spark plugs...like...will they handle...320-405hp...???or will I need a 6a msd ignition for highperformance street...???
Horsepower doesn't make any difference.

Engine RPM does!

The stock GM HEI should be good for 5600-6000 RPM. The 6a MSD ignition is a great system but not something needed for street performance.
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Old 05-23-2008, 03:20 PM
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well the intake that the engine has is a performer rpm 6500rpm...can it still handle that rpm...???
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Old 05-23-2008, 03:34 PM
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Quote:
Originally Posted by jkingof9561
well the intake that the engine has is a performer rpm 6500rpm...can it still handle that rpm...???
The Edelbrock Performer RPM intake manifold is rated to perform best up to 6500 RPM. That has nothing to do with what your engine can actually pull in RPM. Many other factors contribute towards the max usable RPM of an engine. The valve train (springs, rockers, etc.), the cam, the crank, the pistons, basically all of the rotating assembly will govern the usable RPM. I state the usable RPM because over revving an engine much beyond the torque / HP curve will result in a loss of power.

Back to the using of MSD components. They are very good! They are pricey! They are not needed for street use! If you are going to race at a sanctioned dragstrip then go with the MSD. If you just want "bragging rights" of using MSD components then go with the MSD. If you just want to conserve your costs and have good street performance, then go with the GM HEI, with or without the Accel components. Personally, I think money is better spent on other performance components such as a lower (higher numerically) rear gears and or suspension (traction) components.
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Old 05-23-2008, 03:47 PM
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Just to add some perspective.

Most of your around town street driving will be in the 1500-2500 RPM range.

Depending on the ratio of your rear gears, you will probably never be higher than 3200 RPM on the freeway.

Occasional bursts of WOT acceleration with a stock automatic trans that is shifting itself may yield RPM's up to 4500 before the trans shifts.

Your engine will rarely see 6000 RPM while being driven under load conditions.

You will probably never see 6000 RPM of sustained driving.
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Old 05-23-2008, 04:13 PM
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Great post Frisco

"The Edelbrock Performer RPM intake manifold is rated to perform best up to 6500 RPM. That has nothing to do with what your engine can actually pull in RPM."

Ain't it the truth
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Old 05-23-2008, 04:54 PM
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oh ok...thanks for all of the valuable info guys...
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