Only 230Hp after modification need help urgent

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01-03-2010, 10:01 PM

#21

teej281

4.6L Section Moderator

Join Date: Nov 2007

Location: South Central PA

Posts: 10,286

CEL's for tranny issues. My bet is that his torque converter isnt locking and thats why there isnt any power. Just my diagnosis.

01-03-2010, 11:03 PM

#22

stangalator

4th Gear Member

Join Date: Apr 2008

Location: New York

Posts: 1,306

stage 3 heads are for bored out engines only i thought. for the intake valves hitting the cylinder walls?

01-03-2010, 11:04 PM

#23

jedquist

1st Gear Member

Join Date: Nov 2003

Location: United States

Posts: 73

go 5-speed, pitch the auto....

01-03-2010, 11:50 PM

#24

GTRACER88

5th Gear Member

Join Date: Dec 2007

Location: Houston, Tx

Posts: 2,112

You don't need it bored over. It will increase performance but is not required. However, you WILL have piston to valve issues if you didn't flycut your pistons or notched them. I don't see that you did... You probably smashed everything up and ruined your pistons heads even possibly your cams...

01-03-2010, 11:56 PM

#25

jRock617

2nd Gear Member

Join Date: Feb 2008

Location: Boston MA

Posts: 383

Quote:

Originally Posted by Sanad GT

What do u mean by bored out??

Because of the large intake valve, patriot performance does not recommend using the stage 3 heads on standard bore applications

01-04-2010, 12:38 AM

#26

GTRACER88

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Join Date: Dec 2007

Location: Houston, Tx

Posts: 2,112

Yes. The stock bore shouds the intake valve and hinders performance, however it won't affect the performance like this.

01-04-2010, 03:32 AM

#27

Sanad GT

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Location: Bahrain

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Quote:

Originally Posted by GTRACER88

Wrong. The cams are just fine for the stock bottom end. You just can't completly utilize those cams on a stock bottom end. The tuner sounds like he doesn't know what he is doing. Are you throwing any codes? Is your CEL on? Post your dyno graph.

I am trying to upload the graph but its not working