Another what will it make G4 G3 Hybrid Hemi.
#1383680
02/08/13 08:59 PM
02/08/13 08:59 PM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
OP
master
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OP
master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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I've been thinking about this combo for some time and would like input as to what it could make HP wise? 6.4 factory short block. 03 to 08 5.7 hemi heads, hand ported and stock valve. About 300 cfm at .600 6.4 hemi standard tranny cam. I think its bigger than the auto. Lift I think is .557 int .537 Ex. If my calculations are correct running the 03-08 head would result in a 9.5 compression. With headers and a drag pack intake, would 540 hp at 6500 be possible? 
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Re: Another what will it make G4 G3 Hybrid Hemi.
[Re: WO23Coronet]
#1383682
02/08/13 09:23 PM
02/08/13 09:23 PM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
OP
master
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OP
master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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IMO and I'm no expert, the Apache is too big. This is not a race engine looking for throttle response and usable RPM. I think this combo would be duable for around 5K 
Last edited by MattW; 02/08/13 09:26 PM.
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Re: Another what will it make G4 G3 Hybrid Hemi.
[Re: MattW]
#1383683
02/08/13 09:49 PM
02/08/13 09:49 PM
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Joined: Oct 2008
Posts: 458
Michigan
BPE
mopar
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mopar
Joined: Oct 2008
Posts: 458
Michigan
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Matt This will never work and be a total waste of your hard earned money. Just pack it up and send to me.  Rod
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Re: Another what will it make G4 G3 Hybrid Hemi.
[Re: MattW]
#1383684
02/08/13 10:03 PM
02/08/13 10:03 PM
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Joined: Nov 2008
Posts: 833
MN
hemidup
super stock
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super stock
Joined: Nov 2008
Posts: 833
MN
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The closet engine I built that made 545 hp was based off a 6.1 block, cnc ported 5.7 heads with 2.05" int and 1.57" exh valves, 4.055" bore/4.05" stroke = 418 cubes, 9:1 compression, 231/236 @ .050 114lsa, 5.7 plastic truck intake and 80mm throttle body. 545 hp at 5600 rpm was all it would make due to the restrictive plastic intake manifold. So the engine only made 1.3 hp per cube which I was hoping for a bit more. Your gonna have to make 1.37 hp per cube to reach your goal of 540 hp which I think you can do with your tad bit higher compression, don't know much about the cam, but COMP might have them now, your intake, carb and with a 1000 more useable rpm just might get you there. 
Jerry Williams.
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Re: Another what will it make G4 G3 Hybrid Hemi.
[Re: BPE]
#1383685
02/08/13 10:15 PM
02/08/13 10:15 PM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
OP
master
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OP
master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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Quote:
Matt
This will never work and be a total waste of your hard earned money. Just pack it up and send to me.
Rod
LOL
Looks like a 4.06 bore for my pistons. Will contact you soon. Matt
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Re: Another what will it make G4 G3 Hybrid Hemi.
[Re: hemidup]
#1383686
02/08/13 11:56 PM
02/08/13 11:56 PM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
OP
master
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OP
master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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Quote:
The closet engine I built that made 545 hp was based off a 6.1 block, cnc ported 5.7 heads with 2.05" int and 1.57" exh valves, 4.055" bore/4.05" stroke = 418 cubes, 9:1 compression, 231/236 @ .050 114lsa, 5.7 plastic truck intake and 80mm throttle body.
545 hp at 5600 rpm was all it would make due to the restrictive plastic intake manifold. So the engine only made 1.3 hp per cube which I was hoping for a bit more.
Your gonna have to make 1.37 hp per cube to reach your goal of 540 hp which I think you can do with your tad bit higher compression, don't know much about the cam, but COMP might have them now, your intake, carb and with a 1000 more useable rpm just might get you there.
That truck intake is real good at a mild level. With the cubes you had I see why it was done at 5600.
IMO the DP intake is basically a tunnel ram and works extremely well at all RPM.This is were I THINK the power will come from.
This whole package should be able to bolt together for less that 5K if you have an spun 5.7 laying around.
2240.00 for short block.
Old 5.7 heads
80.00 for G4 camshaft
800.00 for intake
670 for MDS contoller and wiring harness
70 for toner ring
200 for front cover.
I'm I missing anything
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Re: Another what will it make G4 G3 Hybrid Hemi.
[Re: MattW]
#1383687
02/09/13 01:21 AM
02/09/13 01:21 AM
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Joined: Feb 2007
Posts: 72
San Angelo, Texas
Cevidicus
member
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member
Joined: Feb 2007
Posts: 72
San Angelo, Texas
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Quote:
Quote:
The closet engine I built that made 545 hp was based off a 6.1 block, cnc ported 5.7 heads with 2.05" int and 1.57" exh valves, 4.055" bore/4.05" stroke = 418 cubes, 9:1 compression, 231/236 @ .050 114lsa, 5.7 plastic truck intake and 80mm throttle body.
545 hp at 5600 rpm was all it would make due to the restrictive plastic intake manifold. So the engine only made 1.3 hp per cube which I was hoping for a bit more.
Your gonna have to make 1.37 hp per cube to reach your goal of 540 hp which I think you can do with your tad bit higher compression, don't know much about the cam, but COMP might have them now, your intake, carb and with a 1000 more useable rpm just might get you there.
That truck intake is real good at a mild level. With the cubes you had I see why it was done at 5600.
IMO the DP intake is basically a tunnel ram and works extremely well at all RPM.This is were I THINK the power will come from.
This whole package should be able to bolt together for less that 5K if you have an spun 5.7 laying around.
2240.00 for short block.
Old 5.7 heads
80.00 for G4 camshaft
800.00 for intake
670 for MDS contoller and wiring harness
70 for toner ring
200 for front cover.
I'm I missing anything
I would think you would need the G4 timing set and the Comp phaser lock outs. If you pop out the crank to change out tone rings you'll need to replace all the tty fasteners. Or I've been told that the FAST XIM ignition controller will work with the 54 tooth G4 tone ring.
I'd like to see a Combo like this work. Would make a wicked little street motor. 
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Re: Another what will it make G4 G3 Hybrid Hemi.
[Re: Cevidicus]
#1383688
02/09/13 10:01 PM
02/09/13 10:01 PM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
OP
master
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OP
master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
|
Quote:
Quote:
Quote:
The closet engine I built that made 545 hp was based off a 6.1 block, cnc ported 5.7 heads with 2.05" int and 1.57" exh valves, 4.055" bore/4.05" stroke = 418 cubes, 9:1 compression, 231/236 @ .050 114lsa, 5.7 plastic truck intake and 80mm throttle body.
545 hp at 5600 rpm was all it would make due to the restrictive plastic intake manifold. So the engine only made 1.3 hp per cube which I was hoping for a bit more.
Your gonna have to make 1.37 hp per cube to reach your goal of 540 hp which I think you can do with your tad bit higher compression, don't know much about the cam, but COMP might have them now, your intake, carb and with a 1000 more useable rpm just might get you there.
That truck intake is real good at a mild level. With the cubes you had I see why it was done at 5600.
IMO the DP intake is basically a tunnel ram and works extremely well at all RPM.This is were I THINK the power will come from.
This whole package should be able to bolt together for less that 5K if you have an spun 5.7 laying around.
2240.00 for short block.
Old 5.7 heads
80.00 for G4 camshaft
800.00 for intake
670 for MDS contoller and wiring harness
70 for toner ring
200 for front cover.
I'm I missing anything
I would think you would need the G4 timing set and the Comp phaser lock outs. If you pop out the crank to change out tone rings you'll need to replace all the tty fasteners. Or I've been told that the FAST XIM ignition controller will work with the 54 tooth G4 tone ring.
I'd like to see a Combo like this work. Would make a wicked little street motor.
OK add 90 for the phaser lock out and 200 for the timing chain set.
As for the crank reluctor wheel, is it possible to change this without removing crank?
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Re: Another what will it make G4 G3 Hybrid Hemi.
[Re: MattW]
#1383689
02/10/13 06:13 AM
02/10/13 06:13 AM
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Joined: Nov 2008
Posts: 833
MN
hemidup
super stock
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super stock
Joined: Nov 2008
Posts: 833
MN
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To change out the reluctor wheel/toner ring, need to pull the crank.
Jerry Williams.
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