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347 "carb'd" stroker???? let the war begin...

  • Thread starter Thread starter sickazzstang
  • Start date Start date Apr 1, 2008
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just4bob50

Active Member
Apr 2, 2005
504
5
28
Pa.
Apr 4, 2008
#61
  • Apr 4, 2008
  • #61
First off I will have to say that this all depends on 3 factors.

1 . What your power goals are.

2. What emissions regulations you have in your area.

3. How easy it will be to get the car back and forth between the first 2.

When I decided to have my Dart 347 built I was originally thinking about going with a carb, because I could sell off old efi parts to easily cover the cost of swaping to a carb. After talking to Rick 91GT @ RNH Performance, and several local tuners, it seemed that the general concensus was that for horse power levels below 500 you can have a carb set up that can have DD qualities, make great power, and be cheaper in the money spent.

I ended up staying EFI, because my ultimate power goals are 700-800 hp with boost,( EFI deffinatley gets the nod for high horsepower and good street manners ) check out the competitors in KOS or Hot-Rods Dyno challenge. Plus in my area emissions rules change every 2 years it seems, so I need to keep the ability to easily throw emissions crap back on if I had to. Also where I live carb swap cars do sell for far less, because the new owners have to pass emisions the first year they own the car, regardless of previous exemptions.

If your power goals are north of 500, EFI will definatelly cost more. I know first hand. I already owned the injectors, TB, and MAF from my old supercharged motor, got the intake used for 300, but the custom front half fuel line and rail set up put me over the top at around 700. If you had to but all this stuff at 1 time new, well good luck.

I say that for 500 fwhp or less its a break even prospect. If you already have an EFI set up that works well, stay with it. If you have nothing to start with, the carb set up will be a little cheaper, but used EFI parts are all over the place, for cheap to support 500.





 
S

sickazzstang

New Member
Sep 28, 2007
55
0
0
Apr 4, 2008
#62
  • Apr 4, 2008
  • #62
just4bob50 said:
First off I will have to say that this all depends on 3 factors.

1 . What your power goals are.

2. What emissions regulations you have in your area.

3. How easy it will be to get the car back and forth between the first 2.

When I decided to have my Dart 347 built I was originally thinking about going with a carb, because I could sell off old efi parts to easily cover the cost of swaping to a carb. After talking to Rick 91GT @ RNH Performance, and several local tuners, it seemed that the general concensus was that for horse power levels below 500 you can have a carb set up that can have DD qualities, make great power, and be cheaper in the money spent.

I ended up staying EFI, because my ultimate power goals are 700-800 hp with boost,( EFI deffinatley gets the nod for high horsepower and good street manners ) check out the competitors in KOS or Hot-Rods Dyno challenge. Plus in my area emissions rules change every 2 years it seems, so I need to keep the ability to easily throw emissions crap back on if I had to. Also where I live carb swap cars do sell for far less, because the new owners have to pass emisions the first year they own the car, regardless of previous exemptions.

If your power goals are north of 500, EFI will definatelly cost more. I know first hand. I already owned the injectors, TB, and MAF from my old supercharged motor, got the intake used for 300, but the custom front half fuel line and rail set up put me over the top at around 700. If you had to but all this stuff at 1 time new, well good luck.

I say that for 500 fwhp or less its a break even prospect. If you already have an EFI set up that works well, stay with it. If you have nothing to start with, the carb set up will be a little cheaper, but used EFI parts are all over the place, for cheap to support 500.





Click to expand...

Chit man thats a nice looking motor. I have no emissions laws... nananananana lol j/k.
The weather is always nice here in Florida.
I will be using a stock block bored and stroked and of course completely freshened up first. I am going to use a main girdle and a valley girdle(thats going to start another argument I'm sure ) I really want to push it to its limits but Carbed is definately cheaper when buying brand new... I'm not much of a hand me down person with the exception of the Trick Flow twisted wedge heads that I may be getting today. I want to go with a victor jr intake and a demon 750 carb. I am getting ready to do my whole engine bay i.e. weld holes box the rails etc. so when its all said and done when you lift the hood it will be extremely clean under there. I also want to upgrade the 150 jet for a 200 shot. And hopefully this thing will stay together. I am also considering switching from the t5 to a c4 with a stall and a trans brake.
I want to know where you got your wires and those clips that looks freakin awesome! Or did you shorten your wires?
 

just4bob50

Active Member
Apr 2, 2005
504
5
28
Pa.
Apr 4, 2008
#63
  • Apr 4, 2008
  • #63
The plug wires are from Mallory, and the wire looms on from Summit. 60 bucks for the wires, and 30 for the looms. The looms come in 2 styles vertical and horizontal. I have the vertical. The wires were already to length. Good luck on your build.
 
S

sickazzstang

New Member
Sep 28, 2007
55
0
0
Apr 4, 2008
#64
  • Apr 4, 2008
  • #64
just4bob50 said:
The plug wires are from Mallory, and the wire looms on from Summit. 60 bucks for the wires, and 30 for the looms. The looms come in 2 styles vertical and horizontal. I have the vertical. The wires were already to length. Good luck on your build.
Click to expand...

Thank you sir! :SNSign: I can't wait to get back from my wedding so I can start this build process!
 

85_SS_302_Coupe

it sucks (I know) to be on the receiving end
15 Year Member
Nov 11, 2003
6,945
1,598
223
Northern KY
Apr 4, 2008
#65
  • Apr 4, 2008
  • #65
I think i agree with the higher hp comment, but there's a catch there too. First if it's a DD and makes over 500hp, i have to imagine that it's on some kind of power adder because there aren't very many all motor 302 based engines making 500hp without spray or something....if they not then they're running outrageous cams and RPMs to match.


I guess i'm sort of at an advantage since my car is factory carbed and it will in fact pass emissions (or it would if the factory emissions stuff was sill under the hood).
 
R

Rick James

Member
May 13, 2007
172
3
19
burlington new jersey
Apr 4, 2008
#66
  • Apr 4, 2008
  • #66
I dont know about ''after 500hp efi is better'',theres plenty of guys over at theturboforums.com making more than 500hp on turboed carb cars driven on the street regulary without driveability issues.
 

white 89 GT

Member
Apr 3, 2003
281
0
17
Tacoma
Apr 4, 2008
#67
  • Apr 4, 2008
  • #67
Rick James said:
I dont know about ''after 500hp efi is better'',theres plenty of guys over at theturboforums.com making more than 500hp on turboed carb cars driven on the street regulary without driveability issues.
Click to expand...

There are also some over 500hp without any power adder.
 

Bullitt347

I have been doing it wrong this whole time
15 Year Member
Mar 23, 2007
3,951
2,906
194
Middle of Maine
Apr 4, 2008
#68
  • Apr 4, 2008
  • #68
MaxTheHooker said:
I didn't bother reading any of the posts because i don't care what anyone has to say. i bought my notch already carbed, and i love it.. in fact, it was one of the main reasons why i got it, because carbed cars are the ****. when fuel injected guys can go out in their driveway and tune their cars with almost nothing but a phillips head, come back to me... fuel injection is iight, but i'd go carbed ANY day of the week.. i can't wait 'til i get a good tune on my car from this place in Jersey, and then we'll see what's up. i'm hoping for mid-high 12's out of her. (until i put on the blower, that is)
Click to expand...

I did not read your post because i do not care what YOU have to say.
 
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