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Author
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Topic: WHY SUCH A SLOWER ET.
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RONNIE
Gearhead Posts: 138
From: MD
Registered: Jan 2003
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posted 08-24-2005 04:24 PM
   
Hi, I ran my car this weekend to make a long story short the last time i ran my car it went 12.65@108 on a 75 degree day sence that day i added alot of fiberglass part lost 280 lbs and bought Pro Form Main Body 750 cfms was a700 cfm, Here my personal webpage it will tell you everything thats in the motor and trans ECT.Iam looking for info why it only ran a 12.98@105 mybe the main body or the weather it was 98 degrees when i ran it the 60ft drop from a 1.82 to a 1.97, Any Advice would be great, Thanks Ronnie http://rons.mustangii.net/------------------
http://groups.msn.com/ronniesracingphotos/ronniesfrontpage.msnw
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capri man
Gearhead Posts: 6946
From: doerun, ga.
Registered: Nov 2000
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posted 08-24-2005 04:42 PM
my car will vary about 1 to 2 tenths from feb to august. obviously most of your et loss came from your 60ft loss. how many runs did you make? were they all about the same 60? im assuming that you took the weight off of the front!!  ------------------
mike r
racing is real
everything else is just a game.
81 capri-302-7.25 @93mph 1/8
1.54 60ft 50 % of the fun dragracing is meeting people who will give you the shirt off their back to wipe the grease off your hands.
M&M member #839 http://i2.photobucket.com/albums/y6/mike470/adel2.jpg
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RONNIE
Gearhead Posts: 138
From: MD
Registered: Jan 2003
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posted 08-24-2005 04:50 PM
I MADE 3 RUNS AND THE 60FT. WAS THE SAME I REPLACED THE HATCHBACK AND INSTALLED LEXAN GLASS AND HOOD AND FRONT AND REAR BUMBERS ALL FIBERGLASS THANKS RONNIE------------------
http://groups.msn.com/ronniesracingphotos/ronniesfrontpage.msnw
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capri man
Gearhead Posts: 6946
From: doerun, ga.
Registered: Nov 2000
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posted 08-24-2005 05:39 PM
just a WAG but do you think you might be spinning??------------------
mike r
racing is real
everything else is just a game.
81 capri-302-7.25 @93mph 1/8
1.54 60ft 50 % of the fun dragracing is meeting people who will give you the shirt off their back to wipe the grease off your hands.
M&M member #839 http://i2.photobucket.com/albums/y6/mike470/adel2.jpg
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RONNIE
Gearhead Posts: 138
From: MD
Registered: Jan 2003
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posted 08-25-2005 05:11 AM
I had the headers uncapped hard to hear the motor but i dont think so, Ronnie------------------
http://groups.msn.com/ronniesracingphotos/ronniesfrontpage.msnw
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Fastymz
Moderator Posts: 20120
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 08-25-2005 03:29 PM
Ronnie, sorry I can't offer you any help. But I can relate to how crazy it makes you, when you poor more money, and time into your car only to have it run slower.  My guess with the lose of weight and slower 60 foot times, sounds like your spinning more? ------------------
oddly obsessed with big scoops on little Mustangs 65 coupe 351w C4 Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics
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capri man
Gearhead Posts: 6946
From: doerun, ga.
Registered: Nov 2000
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posted 08-25-2005 03:45 PM
ronnie, just for grins and giggles check a couple of plugs to make sure you arent dumping to much fuel into it! grasping for straws here!!
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RONNIE
Gearhead Posts: 138
From: MD
Registered: Jan 2003
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posted 08-25-2005 04:03 PM
I did i pullrd #1 and #5 and they both look really rich, Mybe to much carb. Ronnie------------------
http://groups.msn.com/ronniesracingphotos/ronniesfrontpage.msnw
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Fastymz
Moderator Posts: 20120
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 08-25-2005 04:10 PM
I would think it's to much carb. Jet down and recheck them. You did check them after a full pass with a clean shut off right?------------------
oddly obsessed with big scoops on little Mustangs 65 coupe 351w C4 Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics
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RONNIE
Gearhead Posts: 138
From: MD
Registered: Jan 2003
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posted 08-25-2005 04:15 PM
yes i recheck them after a full pass.Is there away to make that 750 a 650 by getting power valvs ect.
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Fastymz
Moderator Posts: 20120
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 08-25-2005 04:20 PM
Whats jets are you running now?------------------
oddly obsessed with big scoops on little Mustangs 65 coupe 351w C4 Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics
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capri man
Gearhead Posts: 6946
From: doerun, ga.
Registered: Nov 2000
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posted 08-25-2005 04:22 PM
you were running a 700 before, right? yea. what jets?------------------
mike r
racing is real
everything else is just a game.
81 capri-302-7.25 @93mph 1/8
1.54 60ft 50 % of the fun dragracing is meeting people who will give you the shirt off their back to wipe the grease off your hands.
M&M member #839 http://i2.photobucket.com/albums/y6/mike470/adel2.jpg
IP: Logged |
RONNIE
Gearhead Posts: 138
From: MD
Registered: Jan 2003
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posted 08-25-2005 04:25 PM
78s front and rear on the 750, 76s and 78s on the 700, Ronnie
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Fastymz
Moderator Posts: 20120
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 08-25-2005 05:25 PM
Did you change the PV?I'd put the 76's back in the fronts and see what happens. ------------------
oddly obsessed with big scoops on little Mustangs 65 coupe 351w C4 Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics
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kid vishus
Gearhead Posts: 6304
From: middle of NC
Registered: Oct 2000
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posted 08-25-2005 07:18 PM
I think it's too rich, and it may also be spinning the tires. I bet you took more weight off the rear of the car than the front. And I bet the car was already nose heavy to begin with and taking weight off the back made it worse.
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John Holloway
Gearhead Posts: 898
From: Romeoville Illinois
Registered: Jul 2000
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posted 08-25-2005 11:29 PM
KV is correct the hatck and rear bumper weight is a lot!You took about 125-150lbs off the back(over the back tires). When I back half my MustangII the hatch and bumper was off when installing each we had to trim the quarter pannels to clear the quarters to roll the car.
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RONNIE
Gearhead Posts: 138
From: MD
Registered: Jan 2003
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posted 08-26-2005 05:00 AM
Thanks for info iam going to wait for a cooler day and have my brother video tape it, Thanks Ronnie------------------
http://groups.msn.com/ronniesracingphotos/ronniesfrontpage.msnw
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