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347 HELP...

  • Thread starter Thread starter traewolfe
  • Start date Start date Mar 21, 2013

traewolfe

Member
Aug 23, 2012
34
1
6
St. Augustine, FL
Mar 21, 2013
#1
  • Mar 21, 2013
  • #1
OK, just got a 347 motor to put in my 95' GT. Scat crank, eagle H beam rods, keith black flat top pistons, comp cam 530 lift, roller rockers, edelbrock highly ported heads and cobra intake. I also have a powerdyne supercharger. Couple of questions. Should I use the SC with this motor? Is the cobra intake going to "choke" it? If so, what should I use? The compression is going to be about 10:1.
Also just had the T-5 rebuilt. What gears would be recommended as well?
I have a pro mas 92 maf with 60 lb injectors as well. Probably too much if I do not use the SC. Any suggestions would be appreciated!View attachment 132006
 

madspeed

Colonel Mustard
Founding Member
Nov 29, 1999
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a van down by the river
Mar 21, 2013
#2
  • Mar 21, 2013
  • #2
search...this combo has been done for many moons
 

traewolfe

Member
Aug 23, 2012
34
1
6
St. Augustine, FL
Mar 21, 2013
#3
  • Mar 21, 2013
  • #3
madspeed said:
search...this combo has been done for many moons
Click to expand...
Thanks for the help!...NOT
 

revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
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#4
  • Mar 21, 2013
  • #4
Yeah, I think you will be ok for low boost. It really depends on the cam more than anything. If you have too much overlap on the cam it probably won't run so well. Do you have any more info on the cam? Gear is more of a personal preference thing, but I wouldn't go any higher than 3.73:1 with the supercharger. You can run the T-5, but even if it's been rebuilt I wouldn't get too upset if it broke.

Kurt
 

madspeed

Colonel Mustard
Founding Member
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#5
  • Mar 21, 2013
  • #5
edited
 

traewolfe

Member
Aug 23, 2012
34
1
6
St. Augustine, FL
Mar 21, 2013
#6
  • Mar 21, 2013
  • #6
It's a Comp Cams with around a 530 lift, that's all I know.
 

revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
Jun 14, 2004
9,288
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Mar 22, 2013
#7
  • Mar 22, 2013
  • #7
Even if you knew the cam card, I probably wouldn't have enough experience to tell you if it will work right. I might have a rough idea, but not for sure. I know you could make it work with the supercharger if you had the right cam.

Kurt
 

VibrantRedGT

"STANGNET'S PENGUIN SMACKER"
15 Year Member
Nov 29, 1999
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Mar 22, 2013
#8
  • Mar 22, 2013
  • #8
Holley Systemax intake would be a better choice over the Cobra. Having the right cam in these cars is very important. Most of us went with a custom cam with a 114 lobe so we wouldn't have idle issues, etc. A little boost shouldn't hurt it with matching fuel upgrades (pump, injectors, etc.) and ignition upgrades (coil, plugs, wires, box).
 

99FiveOh

15 Year Member
May 20, 2006
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99
J-Ville, FL
Mar 22, 2013
#9
  • Mar 22, 2013
  • #9
The OP's car will be tuned by a very competent tuner so lobe separation is a non issue. I'll be doing all the work on the car and I think we have the fuel system figured out.

T5 won't last long behind a 500hp monster!
 

02 281 GT

Agreed...My wife has great Boobs
15 Year Member
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Mar 23, 2013
#10
  • Mar 23, 2013
  • #10
99FiveOh said:
T5 won't last long behind a 500hp monster!
Click to expand...
I was gonna say. Better be prepared to rebuild it again, and again, and again...
 

99FiveOh

15 Year Member
May 20, 2006
2,051
20
99
J-Ville, FL
Mar 23, 2013
#11
  • Mar 23, 2013
  • #11
Nah, I'll have him talked into a T56 swap later on!! lol
 

revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
Jun 14, 2004
9,288
1,631
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Acworth, GA
Mar 23, 2013
#12
  • Mar 23, 2013
  • #12
VibrantRedGT said:
Holley Systemax intake would be a better choice over the Cobra. Having the right cam in these cars is very important. Most of us went with a custom cam with a 114 lobe so we wouldn't have idle issues, etc. A little boost shouldn't hurt it with matching fuel upgrades (pump, injectors, etc.) and ignition upgrades (coil, plugs, wires, box).
Click to expand...

I don't think there would be that much of a gain going to a Systemax 2 with those heads.

Kurt
 

99FiveOh

15 Year Member
May 20, 2006
2,051
20
99
J-Ville, FL
Mar 24, 2013
#13
  • Mar 24, 2013
  • #13
Looks like I may be taking the 347 off the OP's hands. My S trim and that motor will really enjoy each other's company!
 
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