Highest Maggie HP and TQ

[Ajax2112]

Originally Posted by swiftkart

I agree with Nighthawk89, this blower has a hard time feeding anything over 376ci and lowering the compression below 10.25 makes it even worse.

I guess you missed the point you made the statement that the Maggie has a hard time feeding anything over 376. Btw they were both 416 stokers and one made close to 950 on the dyno.

Do you think a high compression 10:1 376 with a 2.3 Maggie can handle 18+ psi boost on the street?

[swiftkart]

Originally Posted by Ajax2112

I guess you missed the point you made the statement that the Maggie has a hard time feeding anything over 376. Btw they were both 416 stokers and one made close to 950 on the dyno.

Do you think a high compression 10:1 376 with a 2.3 Maggie can handle 18+ psi boost on the street?

No the point was proven, a 416 stroker and lower compression on higher boost gain nothing, the 376 with higher compression and less boost is a more efficient package with the smaller 2.3 blower due to better cylinder fill.

Hp per c.i with both engines adjusted to 800 rwhp so you are not comparing flywheel to rear wheel hp, 376 = 2.12 hp, 416 = 1.92 per c.i, the limiting factor being the 2.3 Maggie cannot put out what the 416 wants or needs to fill it's cylinders especially with lower compression, bump the compression up and things changes to a point.

950 on a engine dyno works out to between 760 to 807 rwhp depending on the drivetrain loss factor being somewhere around 15% to 20% range on average.

Yes, a 10:1 376 with a Maggie can handle 18+ psi on the street, you do know stock compression is 10.7:1 which would be another story.

Tom Hendrix has a 427 with a Maggie making real close to 900 rwhp (1058 to 1125 eng. Dyno Hp), but it's something like a 10.5:1 to 11:1 engine to aid cylinder fill with the 2.3 Maggie, the timing and tune are setup to work with his combination, give him a call.

[AGP Turbo]

Engine dyno to RWH is more than just drivetrain loss. You have full intake and real world exhaust system usually. And cooling medium to the blower is a limited, closed loop system. Lot's more losses than just what the trans and rear end takes up. More like 30% and greatly variable based on cooling system temp.

[Ajax2112]

Originally Posted by swiftkart

No the point was proven, a 416 stroker and lower compression on higher boost gain nothing, the 376 with higher compression and less boost is a more efficient package with the smaller 2.3 blower due to better cylinder fill.

Hp per c.i with both engines adjusted to 800 rwhp so you are not comparing flywheel to rear wheel hp, 376 = 2.12 hp, 416 = 1.92 per c.i, the limiting factor being the 2.3 Maggie cannot put out what the 416 wants or needs to fill it's cylinders especially with lower compression, bump the compression up and things changes to a point.

950 on a engine dyno works out to between 760 to 807 rwhp depending on the drivetrain loss factor being somewhere around 15% to 20% range on average.

Yes, a 10:1 376 with a Maggie can handle 18+ psi on the street, you do know stock compression is 10.7:1 which would be another story.

Tom Hendrix has a 427 with a Maggie making real close to 900 rwhp (1058 to 1125 eng. Dyno Hp), but it's something like a 10.5:1 to 11:1 engine to aid cylinder fill with the 2.3 Maggie, the timing and tune are setup to work with his combination, give him a call.

With that much boost and compression you are going to have to worry about the heads lifting. So now we are talking about 6 bolt head and a block set up for the heads.

What about the HP and torque curves how will those be affected by the high boost and high compression? Won’t the limit on timing affect the the power curve?

Now we are having a great discussion.

[Nighthawk89]

Originally Posted by AGP Turbo

Engine dyno to RWH is more than just drivetrain loss. You have full intake and real world exhaust system usually. And cooling medium to the blower is a limited, closed loop system. Lot's more losses than just what the trans and rear end takes up. More like 30% and greatly variable based on cooling system temp.

BINGO!

[Nighthawk89]

Originally Posted by swiftkart

No the point was proven, a 416 stroker and lower compression on higher boost gain nothing, the 376 with higher compression and less boost is a more efficient package with the smaller 2.3 blower due to better cylinder fill.

Hp per c.i with both engines adjusted to 800 rwhp so you are not comparing flywheel to rear wheel hp, 376 = 2.12 hp, 416 = 1.92 per c.i, the limiting factor being the 2.3 Maggie cannot put out what the 416 wants or needs to fill it's cylinders especially with lower compression, bump the compression up and things changes to a point.

950 on a engine dyno works out to between 760 to 807 rwhp depending on the drivetrain loss factor being somewhere around 15% to 20% range on average.

Yes, a 10:1 376 with a Maggie can handle 18+ psi on the street, you do know stock compression is 10.7:1 which would be another story.

Tom Hendrix has a 427 with a Maggie making real close to 900 rwhp (1058 to 1125 eng. Dyno Hp), but it's something like a 10.5:1 to 11:1 engine to aid cylinder fill with the 2.3 Maggie, the timing and tune are setup to work with his combination, give him a call.

Well said...