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Author
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Topic: Wooohooo!! She's purrin'!!
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rockafellz
Gearhead Posts: 408
From: San Lorenzo, CA, USA
Registered: Aug 2001
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posted 10-21-2002 12:29 AM
   
Hey Fellas,Couldn't wait 2 weeks for MSD to fix the used 6AL so I went out and bought one last friday (gonna sell the used one when fixed). Installed it saturday and fired right up!! This time with the new 2 chamber delta flowmasters (sorry John and Alex, I know how you feel about them  but I had these already ) The sound isn't as loud as I thought, but then again I have no basis for comparison. We put a timing light to it, revved it to 3500 and I adjusted it to 34 degrees (seller recommended 36, but just playing the conservative game right now). It idles at 1000-1100 in park and 700-900 in drive. My dad and I took it for a test drive and this thing has some BALLS!! And I haven't even passed 4500 yet (still breaking it in). One concern though. It's running about 9-10 in. of vacuum pressure and when granny driving it shifts late and when slowing down, it downshifts to 1st at about 15-20mph. My first thought is to back out the vacuum modulator on the C4 since it's screwed in about 4 turns. Am I on the right track for diagnosing this problem? Thanks in advance. Erik ------------------
1966 Ford Mustang 2+2
Mine - Restomod in Progress 1966 Ford Mustang Coupe
Dad's - Original Unrestored [This message has been edited by rockafellz (edited 10-21-2002).]
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Moneymaker
Administrator Posts: 14914
From: Lyons, IL, USA
Registered: May 99
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posted 10-21-2002 10:15 AM
Very nice Erik. 
Yes, you are on the right track with the modulator adjustment.  ------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
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Fastymz
Moderator Posts: 6421
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 10-21-2002 04:20 PM
THATS cool Erik,what the heck are you doing GRANNY DRIVING it.  SCOOP ------------------
2.26 60'S
14.9 @ 90.86MPH 65 coupe,351w,C4,Big Boss 429 hood scoop,8"3.40 TracLoc,Cragar SS,Black Suede. https://mustangsandmore.com/ubb/Fastymz.html
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rockafellz
Gearhead Posts: 408
From: San Lorenzo, CA, USA
Registered: Aug 2001
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posted 10-22-2002 12:29 AM
Alright Alex, I backed the vacuum modulator out about 3.5 turns (almost sticking out) and it still seems to downshift too early (~15mph) when coming to a stop. It never used to do this with the old engine, but then again the old engine made 23 inches of vacuum. Current motor is 9-10 in. Does the transmission downshifting early have anything to do with the vacuum?I'm not sure what else to look at at this point.  Anything else you guys think I should check? The vacuum modulator tubing is connected directly to the intake manifold fitting. Thanks in advance. Erik ------------------
1966 Ford Mustang 2+2
Mine - Restomod in Progress 1966 Ford Mustang Coupe
Dad's - Original Unrestored [This message has been edited by rockafellz (edited 10-22-2002).] [This message has been edited by rockafellz (edited 10-22-2002).]
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rockafellz
Gearhead Posts: 408
From: San Lorenzo, CA, USA
Registered: Aug 2001
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posted 10-22-2002 12:33 AM
quote:
Originally posted by Fastymz:
THATS cool Erik,what the heck are you doing GRANNY DRIVING it. SCOOP
Hey Scoop , just fine tuning it and sorting out all the little things. Erik ------------------
1966 Ford Mustang 2+2
Mine - Restomod in Progress 1966 Ford Mustang Coupe
Dad's - Original Unrestored
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Fastymz
Moderator Posts: 6421
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 10-22-2002 01:57 AM
Cool once you get that all done.Head over to Sear Point and post some numbers for us.  SCOOP ------------------
2.26 60'S
14.9 @ 90.86MPH 65 coupe,351w,C4,Big Boss 429 hood scoop,8"3.40 TracLoc,Cragar SS,Black Suede. https://mustangsandmore.com/ubb/Fastymz.html
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rockafellz
Gearhead Posts: 408
From: San Lorenzo, CA, USA
Registered: Aug 2001
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posted 10-22-2002 11:18 PM
Well, I called Dynamic Racing this afternoon and they said I don't have enough vacuum I don't know whether to frown or smile. Nothing beats a viscious idle and a car that wants to creep forward at the stop light They said I need at least 15in.hg of vacuum for the auto feature of the transmission to stop downshifting too early and upshifting too late. The said I could shave off the pin inside the modulator about 1/16" and switch to a bigger modulator. Might help but not a whole lot. Is there anything I could do now to bring the vacuum level up w/o spending more money  ? I've spent a $h!tload the past couple of months and want to slow down a bit. Again it's at about 9-10in.hg at idle in park. Thanks in advance. Erik ------------------
1966 Ford Mustang 2+2
Mine - Restomod in Progress 1966 Ford Mustang Coupe
Dad's - Original Unrestored [This message has been edited by rockafellz (edited 10-22-2002).]
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steve'66
Gearhead Posts: 4712
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 10-23-2002 12:00 AM
Erik,Manual shift it. SteveW
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rockafellz
Gearhead Posts: 408
From: San Lorenzo, CA, USA
Registered: Aug 2001
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posted 10-23-2002 12:14 AM
quote:
Originally posted by steve'66:
Erik,Manual shift it. SteveW
Yup, that's what i'm gonna do. To disable the car from downshifting in D3 I can just remove the vacuum modulator line and plug it right? How about the vacuum modulator itself, is it ok just sitting there or should I cap it? Erik ------------------
1966 Ford Mustang 2+2
Mine - Restomod in Progress 1966 Ford Mustang Coupe
Dad's - Original Unrestored
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steve'66
Gearhead Posts: 4712
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 10-23-2002 12:21 AM
Erik,I'd rather have a manual shift valve body. But, I'm not a auto tranny guy, so I'll stand down for an expert opinion. SteveW
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