exactly how important is ported intake? next mods

Ray III

New Member

Feb 10, 2004

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fixin Boomhower's John Deere in Troy, NY

Sep 11, 2004

#1

• Sep 11, 2004

• #1

Will the stock pre-91 intake manifold support 12-130hp easily?

Trying to figure out why my damned car still has no power. It's a speed density with ranger header and full 2-1/4" exhaust, 5.0 air filter box and an open tube, higher compression, ranger roller cam, and I tried monkeying with the timing.

How much gain in low-end torque could I expect by advancing the cam? how much would I want to advance?

What about upgraded ignition, will an MSD coil alone make a significant improvement or would I need their ignition module as well?

 

My80Cobra

Founding Member

Oct 31, 2002

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Spokane, WA

Sep 11, 2004

#2

• Sep 11, 2004

• #2

I ran the time's listed in my sig on pretty much stock motor just turned the boost up a little and opened the exhaust. The intakes are from the 89 and are stock.

 

M

manny

Founding Member

Dec 5, 2001

590

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16

TAMPA FL

Sep 12, 2004

#3

• Sep 12, 2004

• #3

i run a speed density motor also and what i think you need to do is port the head. there is a ridge on the intake side that you'll need to do some porting with.then you should feel some more power. also raise your fuel pressure and yes put on a better coil with some 9mm wires.

 

Ray III

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Feb 10, 2004

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fixin Boomhower's John Deere in Troy, NY

Sep 12, 2004

#4

• Sep 12, 2004

• #4

I really should of done the head porting when I had the motor apart, I didn't want to spend the money on it, as it is I'm not taking the engine apart again... so it is gonna have to be bolt ons

guess I'll put an MSD coil on there when I have the money for it and if that doesn't do something noticeable I'm just not gonna piss away anymore money on a 2.3 motor.

 

bhuff30

Founding Member

Dec 11, 2001

6,037

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Olathe KS

Sep 12, 2004

#5

• Sep 12, 2004

• #5

did you ever get the timing thing sorted out?

 

mr_woodster

Active Member

Jul 28, 2003

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Riverside, CA

Sep 13, 2004

#6

• Sep 13, 2004

• #6

My80Cobra said:

I ran the time's listed in my sig on pretty much stock motor just turned the boost up a little and opened the exhaust. The intakes are from the 89 and are stock.

Click to expand...

Whats your setup? pretty good times for the stock mods you have listed. having anything done to the suspension?

 

Ray III

New Member

Feb 10, 2004

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fixin Boomhower's John Deere in Troy, NY

Sep 13, 2004

#7

• Sep 13, 2004

• #7

bhuff30 said:

did you ever get the timing thing sorted out?

Click to expand...

I couldn't tell any difference in power taking it up higher. It ran fine at 10 and it ran fine at 20. I just set it at 16 BTC to be safe and went back to 87 octane. I will try again after I got a better coil on there.

What cam are you using?

 

bhuff30

Founding Member

Dec 11, 2001

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129

Olathe KS

Sep 13, 2004

#8

• Sep 13, 2004

• #8

it is a camcraft cam. 220/220 @.050 with .454 lift.