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Re: New spin on an old question - 400 in a Charger [Re: 70Coronet500Vert] #2048178
04/06/16 06:17 PM
04/06/16 06:17 PM
Joined: Jan 2004
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Missouri
68KillerBee Offline
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Originally Posted By 70Coronet500Vert
68KillerBee

I had no idea the FITech were so affordable. I thought these were still $2500.

For under $1500 I can get the fuel sump and FI setup. That is good news.


Plus I believe summit has $100 off and if you're lucky you can find a discount code through summit on top of that. You can search here on moparts for reviews on that product. I know feets is going to get it and has friend/s that have it also.
If you rebuild the heads, you definitely are better off buying a set of aluminum by the time you add up the cost. My dad stuck a good chunk of change in his stock iron heads and nothing crazy was done to them. I got the 440source stealth heads and they were around a grand. Stock out of the box they performed great. If you're patient, you can find a used set to save some cash. Now I've had them CNC ported and all that good stuff, but stock performed wonderfully.

Re: New spin on an old question - 400 in a Charger [Re: 70Coronet500Vert] #2048640
04/07/16 08:41 AM
04/07/16 08:41 AM
Joined: May 2003
Posts: 8,430
St Charles MO
70Coronet500Vert Offline OP
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St Charles MO
Is it worth doing head without a cam? even the reasonable cams mentioned on this thread?


No matter how responsible he may seem, never give your gun to a monkey!
1970 Coronet Vert
1972 Charger
1974 Satellite Sebring Plus Sundance
2001 Ram 4x4
2002 Intrepid
2006 300C
Re: New spin on an old question - 400 in a Charger [Re: 70Coronet500Vert] #2048695
04/07/16 10:37 AM
04/07/16 10:37 AM
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Posts: 21,318
Manitoba, Canada
DaytonaTurbo Offline
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Originally Posted By 70Coronet500Vert
Is it worth doing head without a cam? even the reasonable cams mentioned on this thread?


I would do one of the summit cams. Good choice for this application IMO and very cheap.

Last edited by DaytonaTurbo; 04/07/16 10:37 AM.
Re: New spin on an old question - 400 in a Charger [Re: 70Coronet500Vert] #2048855
04/07/16 02:41 PM
04/07/16 02:41 PM
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Posts: 6,562
Downtown Roebuck Ont
Twostick Offline
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Downtown Roebuck Ont
Advancing the stock cam 4 deg really helps bottom end on these so called smogger engines.

If the current engine is sound, you could make this a science project of sorts and just work with what you have with EFI being the only addition.

After you get all that dialed in, add new cylinder heads and with no other changes, see what that gains you and so on.

Kevin

Re: New spin on an old question - 400 in a Charger [Re: 70Coronet500Vert] #2048952
04/07/16 04:35 PM
04/07/16 04:35 PM
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Missouri
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Sorry to keep posting about it. But since I posted the link, they added the 400hp platform to their page and its cheaper than I thought it would be. You can get it through summit for $720 after mail in rebate. Add in their highest end fuel kit and you're only at $1115 for a complete set up. Rebate ends 5/31
http://www.summitracing.com/parts/fif-30003
http://www.summitracing.com/parts/fif-40003

Re: New spin on an old question - 400 in a Charger [Re: 70Coronet500Vert] #2049489
04/08/16 08:52 AM
04/08/16 08:52 AM
Joined: May 2003
Posts: 8,430
St Charles MO
70Coronet500Vert Offline OP
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Yeah, we will be purchasing that this weekend after the compression check. Of course, provided it is not snowing......


No matter how responsible he may seem, never give your gun to a monkey!
1970 Coronet Vert
1972 Charger
1974 Satellite Sebring Plus Sundance
2001 Ram 4x4
2002 Intrepid
2006 300C
Re: New spin on an old question - 400 in a Charger [Re: 70Coronet500Vert] #2049554
04/08/16 10:55 AM
04/08/16 10:55 AM
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
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Summit's website says the 400hp model does not do timing? If so, if would be worth the upgrade to one that does if it's only a couple hundred bucks difference.

Re: New spin on an old question - 400 in a Charger [Re: 70Coronet500Vert] #2050203
04/09/16 06:00 AM
04/09/16 06:00 AM
Joined: Sep 2004
Posts: 523
Right here
HP2 Offline
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Originally Posted By 70Coronet500Vert
Is it worth doing head without a cam? even the reasonable cams mentioned on this thread?

Or put it this way: -Why buy new heads? Weight is one factor, but the better flowing heads need higher compression to do any good.
Well, are your heads in bad condition it's another story. Do a compression test and post the numbers here. If some cylinders are down, then do a leak-down-test.
Add a cam that builds more cylinder pressure and get the EFI from FiTech as a start. Like someone said, Summit has good and cheap cams.
You don't even have to take the engine out in this first step. No reason for overkill if you want a daily driver.
Would be very interesting to put it in a chassis dyno before and after!


70 W100 Power Wagon. 318 4-spd
70 Sport Fury 440 2dr HT
71 Duster 340
71 Charger Super Bee - 383/727
72 Charger "Sabotage" - 440/727 - Street/Strip
78 Warlock in beautiful patina
Re: New spin on an old question - 400 in a Charger [Re: DaytonaTurbo] #2050204
04/09/16 06:02 AM
04/09/16 06:02 AM
Joined: Sep 2004
Posts: 523
Right here
HP2 Offline
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Right here
Originally Posted By DaytonaTurbo
Summit's website says the 400hp model does not do timing? If so, if would be worth the upgrade to one that does if it's only a couple hundred bucks difference.

iagree


70 W100 Power Wagon. 318 4-spd
70 Sport Fury 440 2dr HT
71 Duster 340
71 Charger Super Bee - 383/727
72 Charger "Sabotage" - 440/727 - Street/Strip
78 Warlock in beautiful patina
Re: New spin on an old question - 400 in a Charger [Re: HP2] #2050486
04/09/16 04:55 PM
04/09/16 04:55 PM
Joined: Oct 2011
Posts: 559
Idaho
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Idaho
Originally Posted By HP2
Originally Posted By 70Coronet500Vert
Is it worth doing head without a cam? even the reasonable cams mentioned on this thread?

Or put it this way: -Why buy new heads? Weight is one factor, but the better flowing heads need higher compression to do any good.
Well, are your heads in bad condition it's another story. Do a compression test and post the numbers here. If some cylinders are down, then do a leak-down-test.
Add a cam that builds more cylinder pressure and get the EFI from FiTech as a start. Like someone said, Summit has good and cheap cams.
You don't even have to take the engine out in this first step. No reason for overkill if you want a daily driver.
Would be very interesting to put it in a chassis dyno before and after!


Better flowing heads need more compression to do any good? Why do you say they need more compression? I've put better heads on a less than 8:1 440 and seen substantial increases in horsepower.

Re: New spin on an old question - 400 in a Charger [Re: 70Coronet500Vert] #2061244
04/25/16 09:01 AM
04/25/16 09:01 AM
Joined: May 2003
Posts: 8,430
St Charles MO
70Coronet500Vert Offline OP
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Gentlemen,

Finally did the compression check. Plugs looked good in all cylinders. Nice tan color.

I had 120 - 125 in all cylinders except 1 and that cylinder was 140.

Book says minimum of 100 with less than 40 psi from cylinder to cylinder.

Book says this is a 8.2:1 compression ratio engine.

At any rate, we are installing FITech unit soon and then this may be a fixture on the st Louis roads between st Charles and alton.


No matter how responsible he may seem, never give your gun to a monkey!
1970 Coronet Vert
1972 Charger
1974 Satellite Sebring Plus Sundance
2001 Ram 4x4
2002 Intrepid
2006 300C
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