Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
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Old Sep 21, 2004 | 04:10 PM
  #1  
84zeddd's Avatar
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From: Missisauga ON
Need more power.

Went to the track on friday and was fairly pleased.The car ran
14.2@99.33 with a crappy 2.354 60`.So I know the car will run
mid-high 13`s with traction.The problem is there is a fourth
gen around here running low 13`s @104 that I would like to put-
on- the-trailer.I was wondering what the weakest part of my
set-up might be.I`m running a 650dp.with the choke milled off,
a W.P. dual plane intake and W.P. Sportsman II heads,an H-272
cam (216@50,.454int 228@50,.480exh.) 10:1 comp.11/2 heddman headers, true duals,accel coil and wires and MSD ign.
The car revvs hard to 6000.But I wondering what I can do to raise the hp..Do I need to upgrade to a 750 carb?Would a set of
SLP 13/4 help me reach my goal?
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Old Sep 23, 2004 | 09:08 AM
  #2  
VetNutJim's Avatar
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Joined: May 2003
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From: Columbus,Ga.
Car: Different One Every Day
Engine: LS1,LS6,L98,L83
Transmission: 700R4, 4060E,Turbo 350, Turbo 400
You didn't say how many you have but....
More CID's???
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Old Sep 26, 2004 | 09:25 AM
  #3  
Vader's Avatar
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"She's givin' us all she can, Cap'n! She canno' take any morrrrre..."

The signature reads 350, so I'm guessing that's the displacement.

1½" primary tubes might be hurting the torque at higher RPM (HP), and by the 60' times, it's apparent that torque on the low wnd isn't a big problem. I'd hate to spend your money on a wild guess, but ask around for others' opinions and what's evacuating their chambers on the higher HP engines.

What valve springs are you using? (Pressure/rate) What valves (Mass) What rockers? If you are losing power due to float, that's a prime target for upgrade.

And don't forget about or overlook the obvious traction problem.
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