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That just seems horrible for that combo. One good thing is there is definately room for improvement! That is a really tall tire for that gear and e.t. I have cheapo shocks and stock leafs and I run 1.48 to 1.49 60'. My guess is a lot of its your converter. I run a coan 8" and it is suprisingly tight on the street and flashes aroud 5000-5200.

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It sure can... the front has to move farther to
get the weight to transfer to the rear...

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Mr P, not being a wise azz, but what if his front were higher/the car was more level, assuming he still had good front suspension travel?

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You dont want to raise the front you want to lower
the rear... by raising the front you just lessen the
amount of travel... you would like around 5" of travel

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1.527 @ 7.353

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the first thing I see is the wrong converter if you are looking for 60' put a real converter in that thing and if you can make it hook you will see the 60' improve a ton.

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didn't read all the post but the first thing I see is the wrong converter if you are looking for 60' put a real converter in that thing and if you can make it hook you will see the 60' improve a ton.

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The MP Chassis book says to measure from the back of your rocker to the ground, then measure from the front of the rocker to the ground and that the front of the rocker should be one inch shorter.

I don't know if this applies to cars with Cal Tracs too.

I'm at a 1.68 60 foot and 7.86 1/8. I think that's a pretty good 60 foot for what my car is and the times it runs

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What was that measurement for... a old pro stock..
forget that measurement.. a lot if the info is good
in that book but some is OLD and out dated... it is
easier to transfer weight if it if closer to the
CG height... thats why a engine is raised in some cars

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didn't read all the post but the first thing I see is the wrong converter if you are looking for 60' put a real converter in that thing and if you can make it hook you will see the 60' improve a ton.

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thats what im thinkin.the vert company i delt with talked me into tradin my 8 inch 5000 stall vert for a 9 inch 3500.they told me i would have the best of both worlds,good trak performance and good street manners.changing the wheels tires and springs aint gunna happen at this time(but will eventually).im gunna go to the trak this sunday mabey i can get somone to take some vidio.i know the rear needs some work but its hard the beleive it has this much efect.

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Bonefish- I notice your location s.w.fl

What track would that be

We enjoy going to Bradenton

plans are to take the Dart and Rampage
down there
when the car hauler is finished>paint
tracks still closed for winter here

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i love bradenton its a great trak but i usually go to immokalee its only about 30 minutes from my house.

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didn't read all the post but the first thing I see is the wrong converter if you are looking for 60' put a real converter in that thing and if you can make it hook you will see the 60' improve a ton.

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thats what im thinkin.the vert company i delt with talked me into tradin my 8 inch 5000 stall vert for a 9 inch 3500.they told me i would have the best of both worlds,good trak performance and good street manners.changing the wheels tires and springs aint gunna happen at this time(but will eventually).im gunna go to the trak this sunday mabey i can get somone to take some vidio.i know the rear needs some work but its hard the beleive it has this much efect.

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Then why ask about the back end of the car... I dont
like telling people where to spend money... thats
why I try to answer the questions that are asked
with a explanation of why or what will change

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didn't read all the post but the first thing I see is the wrong converter if you are looking for 60' put a real converter in that thing and if you can make it hook you will see the 60' improve a ton.

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thats what im thinkin.the vert company i delt with talked me into tradin my 8 inch 5000 stall vert for a 9 inch 3500.they told me i would have the best of both worlds,good trak performance and good street manners.changing the wheels tires and springs aint gunna happen at this time(but will eventually).im gunna go to the trak this sunday mabey i can get somone to take some vidio.i know the rear needs some work but its hard the beleive it has this much efect.

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Then why ask about the back end of the car... I dont
like telling people where to spend money... thats
why I try to answer the questions that are asked
with a explanation of why or what will change

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i appriciate your input and you answered my question but other responsese also made me aware that i have other problems not JUST my rear susp.i have another vert i do not have another rear suspention so although you have made me aware that it IS a problem i will have to address other areas first and live with the wheels for now.

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If it's not spinning the tires all the chassis work in the world isn't going to do much. I would concentrate on why it's down on power. Does it bog? 4.10 with 30" tire isn't helping. If the gear is what you have, try to borrow a shorter set of tires. What intake? What size PTC is it, 9"? 3800 flash seems pretty low with that many cubes. Where is the timing? I don't agree that 99 mph is 10.70, That's optimal. My street car runs [Email]7.0@100[/Email] with low 1.50 60 ft. Most bracket cars I see might go 6.90 at that speed. The basic parts are all there.Right now it looks like it's making about 600HP. That combo should be good for more HP.
Doug

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I agree, if its not spinning the tires all the chassis work in the world wont work.

Also the 99 mph 1/8th would be a optimal setup for a 10.70 in the 1/4.

If you take into account the slow 60 ft and it still was able to hit 99 mph 1/8th, whats it going to run when it does 60 ft./ not bog off the line. Typically a car running around 100 mph 1/8th will pick up around 24 mph or so on the back half. Thats around a 10.75 optimal, add in the bad 60 ft. aspects and this car is a sub 10.70 car potential in the 1/4 when it gets online.


That vert is flashing to low for that 520 combo. This car has some kind of tune issue coming off the line IMO. But you cant rule out a vert problem either.

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If it's not spinning the tires all the chassis work in the world isn't going to do much. I would concentrate on why it's down on power. Does it bog? 4.10 with 30" tire isn't helping. If the gear is what you have, try to borrow a shorter set of tires. What intake? What size PTC is it, 9"? 3800 flash seems pretty low with that many cubes. Where is the timing? I don't agree that 99 mph is 10.70, That's optimal. My street car runs [Email]7.0@100[/Email] with low 1.50 60 ft. Most bracket cars I see might go 6.90 at that speed. The basic parts are all there.Right now it looks like it's making about 600HP. That combo should be good for more HP.
Doug

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I agree, if its not spinning the tires all the chassis work in the world wont work.

Also the 99 mph 1/8th would be a optimal setup for a 10.70 in the 1/4.

If you take into account the slow 60 ft and it still was able to hit 99 mph 1/8th, whats it going to run when it does 60 ft./ not bog off the line. Typically a car running around 100 mph 1/8th will pick up around 24 mph or so on the back half. Thats around a 10.75 optimal, add in the bad 60 ft. aspects and this car is a sub 10.70 car potential in the 1/4 when it gets online.


That vert is flashing to low for that 520 combo. This car has some kind of tune issue coming off the line IMO. But you cant rule out a vert problem either.

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I would think that its way down on power on the low
end to cause a low stall(well below the torque)...
I would/will ask if the cam was degreed in and what
is it at... the conv might be just a real low stall
for the engine... but before I trashed it I would
sure want to know more about the cam.... and with
a tall tire it only makes things worse if the cam
is retarted... it would take too much time to spin up

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If it's not spinning the tires all the chassis work in the world isn't going to do much. I would concentrate on why it's down on power. Does it bog? 4.10 with 30" tire isn't helping. If the gear is what you have, try to borrow a shorter set of tires. What intake? What size PTC is it, 9"? 3800 flash seems pretty low with that many cubes. Where is the timing? I don't agree that 99 mph is 10.70, That's optimal. My street car runs [Email]7.0@100[/Email] with low 1.50 60 ft. Most bracket cars I see might go 6.90 at that speed. The basic parts are all there.Right now it looks like it's making about 600HP. That combo should be good for more HP.
Doug

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I agree, if its not spinning the tires all the chassis work in the world wont work.

Also the 99 mph 1/8th would be a optimal setup for a 10.70 in the 1/4.

If you take into account the slow 60 ft and it still was able to hit 99 mph 1/8th, whats it going to run when it does 60 ft./ not bog off the line. Typically a car running around 100 mph 1/8th will pick up around 24 mph or so on the back half. Thats around a 10.75 optimal, add in the bad 60 ft. aspects and this car is a sub 10.70 car potential in the 1/4 when it gets online.


That vert is flashing to low for that 520 combo. This car has some kind of tune issue coming off the line IMO. But you cant rule out a vert problem either.

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I would think that its way down on power on the low
end to cause a low stall(well below the torque)...
I would/will ask if the cam was degreed in and what
is it at... the conv might be just a real low stall
for the engine... but before I trashed it I would
sure want to know more about the cam.... and with
a tall tire it only makes things worse if the cam
is retarted... it would take too much time to spin up

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