Did H/C/I swap and now not running correctly

mustangramair

Member

Feb 24, 2004

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Iowa

Apr 7, 2005

#1

• Apr 7, 2005

• #1

Hey guys, this past weekend a couple friends and i did an H/C/I swap in my 89 GT. I did TFS twisted wedge heads, TFS stage one, and an explorer intake. I also put in 24# injectors, new lifters, and TFS pushrods, with a new timing chain. One of my friends did not mark the distributor when he took it out, i think this is the problem but i will let you guys diagnose it. WHen we start the car to try to time it, it runs very roughly and wants to stall out. It back fires into the intake with numorous popping sounds. I am pretty sure i have all the vacuum lines hooked up but the explorer intake was a tad different so i am not sure. Also i bought bosch spark plugs and i am not sure TFS recommends these, could they be too short? Do you guys think i have a timing problem or do you think it is something else? Thank you for you help guys Also i am back up at school and the car is sitting at home, so i can't do anything to it right now.

 

Mike86Stang

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Apr 11, 2000

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Red Lion, PA

www.geocities.com

Apr 7, 2005

#2

• Apr 7, 2005

• #2

Sounds like the dizzy is 180* out

 

dstanggt50

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Sep 13, 2000

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Woodinville, WA

Apr 7, 2005

#3

• Apr 7, 2005

• #3

I would just set the #1 cylinder to tdc, and put the distributor in and try to set the timing again. I would agree thought that the distributor sounds like the problem. Other than that, maybe check for any vacuum leaks, and fuel pressure.

 

Jo_885o

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Jul 17, 2003

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Clint. Twp, Michigan

Apr 7, 2005

#4

• Apr 7, 2005

• #4

Yes change those plugs to Autolight 3924's. THe other choices (plugs) are in the instructions. I chose the autolight's

 

mustangramair

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Feb 24, 2004

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Iowa

Apr 7, 2005

#5

• Apr 7, 2005

• #5

Thanks alot for the input guys! I have a fuel pressure guage and it was reading 40 psi so that is right on. We put it on tdc once and it didn't really do anything but the thottle cable wasn't hooked up and that is why it would die right away... duh on our part! But yeah, we all thought it was timing. Jo_885o, so you say to change the spark plugs? I was wondering if i bought the wrong ones, i didn't think it would make a difference that is why i bought bosch. I will buy the ones you say. Thanks guys

 

mustangramair

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Feb 24, 2004

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Iowa

Apr 7, 2005

#6

• Apr 7, 2005

• #6

Oh yeah guys, someone that i know said to check if the spout was in. what is this?

 

dstanggt50

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Sep 13, 2000

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Woodinville, WA

Apr 7, 2005

#7

• Apr 7, 2005

• #7

It adds timing depending on the rpm you are at. I think on a fox it is by the distributor, a little sqaure piece.

 

mustangramair

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Feb 24, 2004

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Iowa

Apr 7, 2005

#8

• Apr 7, 2005

• #8

dstanggt50 said:

It adds timing depending on the rpm you are at. I think on a fox it is by the distributor, a little sqaure piece.

Click to expand...

ok thanks, could this be my problem?

 

bullitstang1313

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Jan 21, 2003

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Indianapolis / Columbus, Indiana

Apr 7, 2005

#9

• Apr 7, 2005

• #9

The spout is a connector on the distributor that adjusts the timing electronically. It can advance or retard the timing depending on different signals to the computer. This should be disconnected when the timing is set, but then reconnected afterward. If your car is backfiring, then it sounds like the distributor is retarded to much. Timing should be around 12 degrees BTDC. Also, did you get a new MAF calibrated for 24 lb injectors. Not having a MAF calibrated for these injectors will cause it to run rough as well.

 

mustangramair

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Feb 24, 2004

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Iowa

Apr 7, 2005

#10

• Apr 7, 2005

• #10

bullitstang1313 said:

The spout is a connector on the distributor that adjusts the timing electronically. It can advance or retard the timing depending on different signals to the computer. This should be disconnected when the timing is set, but then reconnected afterward. If your car is backfiring, then it sounds like the distributor is retarded to much. Timing should be around 12 degrees BTDC. Also, did you get a new MAF calibrated for 24 lb injectors. Not having a MAF calibrated for these injectors will cause it to run rough as well.

Click to expand...

I have a C&L mass air meter calibrated for 24# injectors. I got it from a friend who was running 24# injectors and he didn't have any problems with it. 12 degrees BTDC, i will write that down. Thanks alot!