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Author Topic: 347 street junk  (Read 31275 times)
347HO
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« Reply #15 on: July 23, 2010, 10:04:33 pm »

60' still needs work
I don't disagree, but I do suggest this be further down the list to work on.
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... it was REALLY revving at like 4K...
If I saw that thing in my rear view Im pulling over to let you by, I be scared of that thing Huh? i dont know wich car is uglier ur or mine?
Javier
Ugly?  Easy now -- that's my baby and it's got lots of unique character!  When I drop that built 445" stroker in it you won't have any time to "pull over to let me pass" because I'll have already blown past you when you figure out what the hell was that loud noise behind you . . .  
vsixer
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« Reply #16 on: July 25, 2010, 03:01:00 pm »

 I should have the headers on and hopefully back to the track in 2 weeks, weather permiting. Thinking about buying a lm-1 a/f gage for tuning, plus I have a few friend I can help out too.
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347HO
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« Reply #17 on: July 25, 2010, 06:25:39 pm »

I should have the headers on and hopefully back to the track in 2 weeks, weather permiting. Thinking about buying a lm-1 a/f gage for tuning, plus I have a few friend I can help out too.
I have the LM-1 and datalogger for informational reference while racing, but I don't suggest using it for tuning unless you have a substantial baseline already.
If you're drag racing with it...  I think it's almost useless, but that's my opinion.
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... it was REALLY revving at like 4K...
If I saw that thing in my rear view Im pulling over to let you by, I be scared of that thing Huh? i dont know wich car is uglier ur or mine?
Javier
Ugly?  Easy now -- that's my baby and it's got lots of unique character!  When I drop that built 445" stroker in it you won't have any time to "pull over to let me pass" because I'll have already blown past you when you figure out what the hell was that loud noise behind you . . .  
vsixer
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« Reply #18 on: August 07, 2010, 11:36:40 pm »

spent the better part of last night and all day today putting the Accufab headers on. I am not very happy with them. I had to cut the stock frame with the saws aw on both passenger and  drivers side, cut the motor mount on the passengers side. You have to leave the header on passenger side loose to get even the small starter in. Had to pull the motor to even get the headers in. Had to cut an ear off the trans(not sure what is for since I don't use it for anything). Had to bend the headers in at the bolts to even get the bolts to start, then had to bend some more to get the wrench on them to tighten them up.

I sure hope them make a big difference, cuase 10 hours is wany to long to work for nothing. Hell I could have swapped cams quicker......lol

Only other thing is I wish I would have had the converter, because I would have put it in since I had the motor and trans seperated to get the headers in, but at least next time I go to the track we will be able to see what difference Accufab headers can make going from cheap summit headers 1 5/8 to hopfully good 1 3/4 equal length and corrected fire order.

Have to take it to a good muffler shop to get the headers to exhaust connected then back to the track.

oh the spark plugs were a nice tan/ brown color so the carb must be pretty close.
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vsixer
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« Reply #19 on: October 02, 2010, 01:32:25 pm »

Ok with the new headers I was dissapointed in the results as the air was good and about 20 degrees cooler. looks like they hurt me more than they help, as one would think the cooler air by itself would have picked up better. For 10 hours and almost 600 dollars it wasn't worth upgrading.

Here is the break down:
First set up:
60' 1.888
330 - 5.112
1/8 - 7.791
1/8 MPH 91.32
1000 - 10.126
1/4 - 12.099
1/4 - 114.12

added carb
60' 1.777
330 - 5.023
1/8 - 7.729
1/8 MPH 90.71
1000 - 10.085
1/4 - 12.081
1/4 - 112.76

Added headers and about 20 degrees cooler weather
60' 1.730
330 - 4.973
1/8 - 7.684
1/8 MPH 89.68
1000 - 10.060
1/4 - 12.064
1/4 - 112.65


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85 Coupe
69 Merc
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« Reply #20 on: October 02, 2010, 01:38:34 pm »

With 3" collectors, right?

What does the rest of your exhaust system consist of after your those collectors?

After you installed your new and larger and better flowing exhaust did you re-jet your carb a bit richer?

Just checking "old" spark plugs won't help you after a mod.  You have to change to a new plug to get a "clean" reading!
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Robert's 1969 Mercury Montego (FordStrokers 408W, QFT 850cfm RQ-AN, Super Victor, 1" aluminum open spacer, CamMotion HR .624"/.609" 251*/256* 108* LSA, 1-3/4"x3-1/2" headers, Dynomax Ultra #17224 mufflers, C6/4R100 trans, 8"/9" 5500 converter, Broader Performance manual V/B, 9" 4.56 Detroit Truetrac, Hoosier Pro Street 31x12.5R15 on 10" rims)

The Merc started here = http://sbftech.com/index.php/topic,27178.0.html  Now = http://sbftech.com/index.php/topic,34648.0.html

Thanks to Jim "Woody" and Nicole Woods @ FordStrokers 408W, Westminster Performance Transmission (W.P.T.) transmissions, TCS Performance converters, Broader Performance valvebodies and last but not least a BIG thanks (always) to my friends here and abroad in the World!
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« Reply #21 on: October 02, 2010, 01:51:23 pm »

IOW every time after I've either added an open carb spacer or made my exhaust system less restrictive I've had to re-jet my carb a few jets sizes richer to enjoy an increase in performance.
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Robert's 1969 Mercury Montego (FordStrokers 408W, QFT 850cfm RQ-AN, Super Victor, 1" aluminum open spacer, CamMotion HR .624"/.609" 251*/256* 108* LSA, 1-3/4"x3-1/2" headers, Dynomax Ultra #17224 mufflers, C6/4R100 trans, 8"/9" 5500 converter, Broader Performance manual V/B, 9" 4.56 Detroit Truetrac, Hoosier Pro Street 31x12.5R15 on 10" rims)

The Merc started here = http://sbftech.com/index.php/topic,27178.0.html  Now = http://sbftech.com/index.php/topic,34648.0.html

Thanks to Jim "Woody" and Nicole Woods @ FordStrokers 408W, Westminster Performance Transmission (W.P.T.) transmissions, TCS Performance converters, Broader Performance valvebodies and last but not least a BIG thanks (always) to my friends here and abroad in the World!
vsixer
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« Reply #22 on: October 02, 2010, 04:49:52 pm »

With 3" collectors, right?

What does the rest of your exhaust system consist of after your those collectors?

After you installed your new and larger and better flowing exhaust did you re-jet your carb a bit richer?

Just checking "old" spark plugs won't help you after a mod.  You have to change to a new plug to get a "clean" reading!

Yes, its three inch collectors, then straight back with 3 inch and 2 chamber flow masters. I did not rejet the carb, ran it as is. looking to buy an air fuel meter, cause I never seen to have much luck with reading spark plugs.
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85 Coupe
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« Reply #23 on: October 02, 2010, 06:40:02 pm »

Ok with the new headers I was dissapointed in the results as the air was good and about 20 degrees cooler. looks like they hurt me more than they help, as one would think the cooler air by itself would have picked up better. For 10 hours and almost 600 dollars it wasn't worth upgrading.

Here is the break down:
First set up:
60' 1.888
330 - 5.112
1/8 - 7.791
1/8 MPH 91.32
1000 - 10.126
1/4 - 12.099
1/4 - 114.12

added carb
60' 1.777
330 - 5.023
1/8 - 7.729
1/8 MPH 90.71
1000 - 10.085
1/4 - 12.081
1/4 - 112.76

Added headers and about 20 degrees cooler weather
60' 1.730
330 - 4.973
1/8 - 7.684
1/8 MPH 89.68
1000 - 10.060
1/4 - 12.064
1/4 - 112.65




I don't know how they hurt you...you were faster everywhere.

Add fuel and timing and get your 60 down.  The Et will follow.
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347HO
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I believe they landed on the moon.


« Reply #24 on: October 02, 2010, 08:43:17 pm »

Your mph is down.
Your carburetor is not working for you and you need to address this first.  Something or some things are "broke" in your induction system.

IMO, I work on mph first then ET.  You'll be killing yourself if you do this in reverse.
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... it was REALLY revving at like 4K...
If I saw that thing in my rear view Im pulling over to let you by, I be scared of that thing Huh? i dont know wich car is uglier ur or mine?
Javier
Ugly?  Easy now -- that's my baby and it's got lots of unique character!  When I drop that built 445" stroker in it you won't have any time to "pull over to let me pass" because I'll have already blown past you when you figure out what the hell was that loud noise behind you . . .  
jayh
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« Reply #25 on: October 03, 2010, 09:15:34 am »

it look like those headers didnt do anything for you

heres what I see(not in any order)-
1. 60'
2. carb
3. valvesprings
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425" pump gas 6.2@110
69 Merc
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« Reply #26 on: October 03, 2010, 12:21:10 pm »

it look like those headers didnt do anything for you




You have to re-jet to get top performance.

The less restrictive you make your exhaust the faster your ride will be -- period!   Wink

But you always have to re-jet.
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Robert's 1969 Mercury Montego (FordStrokers 408W, QFT 850cfm RQ-AN, Super Victor, 1" aluminum open spacer, CamMotion HR .624"/.609" 251*/256* 108* LSA, 1-3/4"x3-1/2" headers, Dynomax Ultra #17224 mufflers, C6/4R100 trans, 8"/9" 5500 converter, Broader Performance manual V/B, 9" 4.56 Detroit Truetrac, Hoosier Pro Street 31x12.5R15 on 10" rims)

The Merc started here = http://sbftech.com/index.php/topic,27178.0.html  Now = http://sbftech.com/index.php/topic,34648.0.html

Thanks to Jim "Woody" and Nicole Woods @ FordStrokers 408W, Westminster Performance Transmission (W.P.T.) transmissions, TCS Performance converters, Broader Performance valvebodies and last but not least a BIG thanks (always) to my friends here and abroad in the World!
vsixer
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« Reply #27 on: October 03, 2010, 12:27:06 pm »

The carb I can rejet. going to buy an Air/ fuel meter, I allways wanted on, plus I think there is a need locally to help tune a few cars with it to help pay for its self.

60' the only way I really see to increase this is to get a bigger stall, traction is really not a problem.

I have the springs and lifter yet to install, but I think I am going to hold off until I get the carb straighten out.
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85 Coupe
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« Reply #28 on: October 03, 2010, 01:18:26 pm »

I have the springs and lifter yet to install, but I think I am going to hold off until I get the carb straighten out.

I highly suggest doing the lifters and springs before anything else. My RPM heads with OOTB springs could not handle the TFS 1 cam with 1.7 lifters and thats just a mild cam. I could see on my chassis dyno chart the break up start to happen at 5000rpm. eventhough it would still pull well past. I had to chase tuning issues due to the instablility.
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Spend time with your family to, not just your car.

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jayh
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« Reply #29 on: October 04, 2010, 08:31:35 am »

I think the VS carb is hurting the 60' and the valve springs are killing some power up top

dont get me wrong, the headers definatley arent hurting anything, but it wouldnt be the first time Ive seen a mild combo(ootb performer heads,ots cam) see minimal gains from 1 3/4 over 1 5/8

if the car doesnt come out of the hole, it can be hard to judge based on MPH
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425" pump gas 6.2@110
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