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Re: Pistons
[Re: MR_P_BODY]
#1370092
12/15/14 12:13 AM
12/15/14 12:13 AM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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I think the Modman suffers from piss poor fuel distribution. The runner length has the same effect as any other engine. If using EFI with an injector at every port, the fuel distribution problem is solved. Under boost, I think the runner length becomes less of a problem too.
Mopar to the bone!!!
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Re: Pistons
[Re: 72Swinger]
#1370093
12/15/14 12:21 AM
12/15/14 12:21 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
I think the Modman suffers from piss poor fuel distribution. The runner length has the same effect as any other engine. If using EFI with an injector at every port, the fuel distribution problem is solved. Under boost, I think the runner length becomes less of a problem too.
Thats good.. I will be using multi port... I wasnt sure
if it was the distribution issue... in that case I MIGHT
be making a intake.. depending on height clearances
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Re: Pistons
[Re: MR_P_BODY]
#1370094
12/15/14 12:40 AM
12/15/14 12:40 AM
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Joined: Jan 2003
Posts: 9,985
Frostbitefalls MN (Rocky&Bullw...
gregsdart
OP
master
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OP
master
Joined: Jan 2003
Posts: 9,985
Frostbitefalls MN (Rocky&Bullw...
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One of the options I am interested in is the srt8 6.4 plastic intake. If you are going to electronic injection, the question becomes, why not go for the whole enchilada? The 6.4 intake looks to be lower than the barrel shaped 6.1, and it has variable runner length that I here could be run by an rpm switch. If you have the cubes and heads, that should then make comparable if not more hp than a stock 6.4, and with a cam and headers ought to be a real animal. The cost of the 6.4 intake manifold and attending parts is what I would like to find out. It might get spendy buying it all new. There must be some guys out there that put on a blower and are willing to sell the stock stuff.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Pistons
[Re: gregsdart]
#1370095
12/15/14 12:48 AM
12/15/14 12:48 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
One of the options I am interested in is the srt8 6.4 plastic intake. If you are going to electronic injection, the question becomes, why not go for the whole enchilada? The 6.4 intake looks to be lower than the barrel shaped 6.1, and it has variable runner length that I here could be run by an rpm switch. If you have the cubes and heads, that should then make comparable if not more hp than a stock 6.4, and with a cam and headers ought to be a real animal. The cost of the 6.4 intake manifold and attending parts is what I would like to find out. It might get spendy buying it all new. There must be some guys out there that put on a blower and are willing to sell the stock stuff.
With the Holley injection it will pretty much run
the engine... I'll use my throttle body and maybe
another one.. just thinking but I need enough room for
a good hat
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Re: Pistons
[Re: ntstlgl1970]
#1370097
12/15/14 01:21 AM
12/15/14 01:21 AM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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Wish someone would make a plastic 6.1 intake. They are heavy, although I put the time in to lighten mine quite a bit. 6.4 intakes have been swapped onto 6.1's and 5.7's both. Modern Muscle even offers CNC of the TB opening.
Mopar to the bone!!!
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Re: Pistons
[Re: ntstlgl1970]
#1370098
12/15/14 01:24 AM
12/15/14 01:24 AM
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Joined: May 2007
Posts: 553
Sac, CA, USA
ntstlgl1970
mopar
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mopar
Joined: May 2007
Posts: 553
Sac, CA, USA
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A couple of things to add to the list -
1. The TTI mounts don't mount cleanly on the aluminum block, they need to be clearanced for block bolt bosses on both sides.
2. Mix and match threads and fasteners - good old Chrysler, never changes. Can't make up their minds to go all metric or SAE. The bellhousing bolts are 3/8-16 thread, the block coolant drain plugs are 9/16 head. Everything else appears to be metric.
3. Arrow racing suggested to use the 6.4L main bearings, he said that it helps address some oiling issues (he did not elaborate)
Last edited by ntstlgl1970; 12/15/14 01:30 AM.
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Re: Pistons
[Re: 72Swinger]
#1370099
12/15/14 01:26 AM
12/15/14 01:26 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Wish someone would make a plastic 6.1 intake. They are heavy, although I put the time in to lighten mine quite a bit. 6.4 intakes have been swapped onto 6.1's and 5.7's both. Modern Muscle even offers CNC of the TB opening.
Will the 6.4 intake fit a 5.7
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Re: Pistons
[Re: 72Swinger]
#1370101
12/15/14 01:33 AM
12/15/14 01:33 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Quote:
Quote:
Wish someone would make a plastic 6.1 intake. They are heavy, although I put the time in to lighten mine quite a bit. 6.4 intakes have been swapped onto 6.1's and 5.7's both. Modern Muscle even offers CNC of the TB opening.
Will the 6.4 intake fit a 5.7
With Eagle,6.1 or Apache heads, yes.
Ok
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Re: Pistons
[Re: MR_P_BODY]
#1370102
12/15/14 03:18 AM
12/15/14 03:18 AM
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Joined: May 2003
Posts: 6,560
Downtown Roebuck Ont
Twostick
Still wishing...
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Still wishing...
Joined: May 2003
Posts: 6,560
Downtown Roebuck Ont
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Quote:
I am looking at a 06 5.7 out of a Ram.. is this block
a decent starting point.. does it have the VVT.. it
is a complete engine
thanks
It won't have VVT but it will have MDS if that matters.
Kevin
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Re: Pistons
[Re: Cevidicus]
#1370103
12/15/14 11:38 AM
12/15/14 11:38 AM
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Joined: Jul 2008
Posts: 361
Canada
onig
enthusiast
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enthusiast
Joined: Jul 2008
Posts: 361
Canada
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Yes, that would work. No, it does not have vvt. Sounds like a good starting point if the price is right. Keep in mind the timing cover and accessory drive are different than on a car. You can't use the 6.1 intake without modifying the timing cover.
What mods will be necessary to the truck timing cover for the 6.1 intake to work, and any pics of this mod?
69 Dart
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Re: Pistons
[Re: 72Swinger]
#1370104
12/15/14 12:09 PM
12/15/14 12:09 PM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
master
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master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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Quote:
Wish someone would make a plastic 6.1 intake. They are heavy, although I put the time in to lighten mine quite a bit. 6.4 intakes have been swapped onto 6.1's and 5.7's both. Modern Muscle even offers CNC of the TB opening.
Isn't the 5.7 car intake a plastic version of the 6.1? 
Matt
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Re: Pistons
[Re: WO23Coronet]
#1370107
12/15/14 01:13 PM
12/15/14 01:13 PM
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Joined: Jan 2003
Posts: 154
Plano, TX
StricNine
member
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member
Joined: Jan 2003
Posts: 154
Plano, TX
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As mentioned, the 6.4 intake (for cars, I don't know about the truck variant) has an imbalance from one bank to the other, even without forced induction, and made worse with forced induction. The factory tune accounts for that for those cylinders. The 5.7 Eagle car intake does not have the variable runner setup, the 5.7 Eagle truck intake does. Some posts regarding it: On The Dyno, A Study Of The Effect Of Boost On The 6.4 Intake
Last edited by StricNine; 12/15/14 01:21 PM.
StricNine
79 Li'l Red Express, 15.04 @ 89.57
09 Challenger R/T, 11.95 @ 115.92
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Re: Pistons
[Re: MR_P_BODY]
#1370110
12/16/14 04:20 PM
12/16/14 04:20 PM
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Joined: Jun 2003
Posts: 9,225
Charleston
sixpackgut
Drag Week Mod Champion
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Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
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FWI to anyone interested, the 6.4 heads are still discounted $470 plus $150 core charge
Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: Pistons
[Re: sixpackgut]
#1370111
12/16/14 09:37 PM
12/16/14 09:37 PM
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Joined: Sep 2006
Posts: 411
Portersville, Pa
1badx
mopar
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mopar
Joined: Sep 2006
Posts: 411
Portersville, Pa
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Quote:
FWI to anyone interested, the 6.4 heads are still discounted $470 plus $150 core charge
Can you please post the info again on how to obtain these heads at the discounted price?
Thanks!
Mike
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