. Look at those video in slow motion to see what the tires are really doing 
I can't tell if your rear tires are slicks, street tires, bias ply or radials 
What are they?
Quote:
this combo is 520 ci.alum block.10.2 comp. indy 325 CNC heads prepped by PRH. comp cam [Email]263@50[/Email] in.,269@50 ex.GVL is649-654. 9 in. PTC vert that flashes at around 3800.410 dana,727 mvb.30x12.5 rear tires. 1050 dom.with TTI 2in. headers into 3 in ex. car weighs around 4000 w/me in it.with a 1.7147 60ft it went 99mph. 1/8 mi.i had people watch and they said the tires are not spinning.
Quote:got 90/10,s on the front.Quote:
this combo is 520 ci.alum block.10.2 comp. indy 325 CNC heads prepped by PRH. comp cam [Email]263@50[/Email] in.,269@50 ex.GVL is649-654. 9 in. PTC vert that flashes at around 3800.410 dana,727 mvb.30x12.5 rear tires. 1050 dom.with TTI 2in. headers into 3 in ex. car weighs around 4000 w/me in it.with a 1.7147 60ft it went 99mph. 1/8 mi.i had people watch and they said the tires are not spinning.
your combo is close to our 68 Satellite
we were 1.631 @ 7.382
loosen up the front with 90/10 shocks
1.527 @ 7.353
540 /4500, 4.10 dana/31x14-15
super comp headers
also running a 1050 Dominator
no major tuning yet
only got 4 passes last year
on E-85
Quote:i love bradenton its a great trak but i usually go to immokalee its only about 30 minutes from my house.
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
Quote:
Dragin, whats your MPH in the 1/8th with that 7.35 Its not going to be near the 99 MPH like the OP is running. Your 1.52 60 ft. is great for that 7.35 et
Quote:
It sure can... the front has to move farther to
get the weight to transfer to the rear...
Quote:how is your in gear idle for street use?
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.
Quote:Quote:
It sure can... the front has to move farther to
get the weight to transfer to the rear...
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?
Quote:
1.527 @ 7.353
Quote:
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.
Quote: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.
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.
Quote:
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
Quote:it' makes a huge difference, find a new company. I would have a 8" 5600 street or notQuote: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.
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.
Quote:Quote:i love bradenton its a great trak but i usually go to immokalee its only about 30 minutes from my house.
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
Quote:Quote: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.
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.
Quote: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.Quote:Quote: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.
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.
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
Quote:
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
) Converter manufacturer need to have an idea of around where the torque peak is. Even then, similar advertised converters can vary a lot.
Quote:Quote:
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
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.
Quote:cam is installed at 106 as per the manufacturers recomendatiom.but it does rev kinda slow,it realy doesnt seem to come on till about 3000 or so.Quote:Quote:
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
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.
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
Quote:
Here is one of my timeslips if you want to compare to your #'s. I am car 201. Ron
Quote:
cam is installed at 106 as per the manufacturers recomendatiom.but it does rev kinda slow,it realy doesnt seem to come on till about 3000 or so.
Quote:Quote:
Here is one of my timeslips if you want to compare to your #'s. I am car 201. Ron
Bad Ass street car Ron
One of the few cars that runs as good as it looks
Looks like you have a pretty great running car yourself. Ron
Quote:yes i put it in and checked it several times but i will admitt im not real experienced.i did not check each lobe.but it is real lazy on the hit when i rev it.i installed a AF guage and its right about where it needs to be and gets a good shot from the carb.i tried slowin down the pump shot and it just made it worse.i never thought about the cam bein the prob but it kind feels like it could be.Quote:
cam is installed at 106 as per the manufacturers recomendatiom.but it does rev kinda slow,it realy doesnt seem to come on till about 3000 or so.
Are you SURE... did you put it in... all the actions
tend to say its retarted.... or even the cam is
made wrong to the specs... by chance did you check
each lobe
Quote:Quote:yes i put it in and checked it several times but i will admitt im not real experienced.i did not check each lobe.but it is real lazy on the hit when i rev it.i installed a AF guage and its right about where it needs to be and gets a good shot from the carb.i tried slowin down the pump shot and it just made it worse.i never thought about the cam bein the prob but it kind feels like it could be.Quote:
cam is installed at 106 as per the manufacturers recomendatiom.but it does rev kinda slow,it realy doesnt seem to come on till about 3000 or so.
Are you SURE... did you put it in... all the actions
tend to say its retarted.... or even the cam is
made wrong to the specs... by chance did you check
each lobe
Quote:Quote:Quote:
Here is one of my timeslips if you want to compare to your #'s. I am car 201. Ron
Bad Ass street car Ron
One of the few cars that runs as good as it looks
Thank you.
Quote:havnt done that ill have to order some.its got the standard pump cam that doms come with,cant remember the color but i can look tomorrow.Quote:Quote:yes i put it in and checked it several times but i will admitt im not real experienced.i did not check each lobe.but it is real lazy on the hit when i rev it.i installed a AF guage and its right about where it needs to be and gets a good shot from the carb.i tried slowin down the pump shot and it just made it worse.i never thought about the cam bein the prob but it kind feels like it could be.Quote:
cam is installed at 106 as per the manufacturers recomendatiom.but it does rev kinda slow,it realy doesnt seem to come on till about 3000 or so.
Are you SURE... did you put it in... all the actions
tend to say its retarted.... or even the cam is
made wrong to the specs... by chance did you check
each lobe
What carb cam color are you using and did you try
larger squirters
Quote:Quote:havnt done that ill have to order some.its got the standard pump cam that doms come with,cant remember the color but i can look tomorrow.Quote:Quote:yes i put it in and checked it several times but i will admitt im not real experienced.i did not check each lobe.but it is real lazy on the hit when i rev it.i installed a AF guage and its right about where it needs to be and gets a good shot from the carb.i tried slowin down the pump shot and it just made it worse.i never thought about the cam bein the prob but it kind feels like it could be.Quote:
cam is installed at 106 as per the manufacturers recomendatiom.but it does rev kinda slow,it realy doesnt seem to come on till about 3000 or so.
Are you SURE... did you put it in... all the actions
tend to say its retarted.... or even the cam is
made wrong to the specs... by chance did you check
each lobe
What carb cam color are you using and did you try
larger squirters
Quote:
.
Quote:
well, i checked my comp. with my guage.i could only do one cyl. on each side ,the headers make it almost impossible to get this hose on.with the throtle wide open i got 170 on each side.
Quote:when Dwayne speced out this piston and cam that was our goal,pump gas freindly.Quote:
well, i checked my comp. with my guage.i could only do one cyl. on each side ,the headers make it almost impossible to get this hose on.with the throtle wide open i got 170 on each side.
That doesnt sound bad for 10.4(I think thats what
you said) but I would have guessed a bit more...
that is defiantly pump gas friendly... but you need
to check all of them when you can... you could have
some low ones
Quote:Quote:when Dwayne speced out this piston and cam that was our goal,pump gas freindly.Quote:
well, i checked my comp. with my guage.i could only do one cyl. on each side ,the headers make it almost impossible to get this hose on.with the throtle wide open i got 170 on each side.
That doesnt sound bad for 10.4(I think thats what
you said) but I would have guessed a bit more...
that is defiantly pump gas friendly... but you need
to check all of them when you can... you could have
some low ones
Quote:Dwayne did the heads.i was runnin low 9, with these heads in another combo.i also checked them out real good when i resprung them for the street cam.Quote:Quote:when Dwayne speced out this piston and cam that was our goal,pump gas freindly.Quote:
well, i checked my comp. with my guage.i could only do one cyl. on each side ,the headers make it almost impossible to get this hose on.with the throtle wide open i got 170 on each side.
That doesnt sound bad for 10.4(I think thats what
you said) but I would have guessed a bit more...
that is defiantly pump gas friendly... but you need
to check all of them when you can... you could have
some low ones
Is that a fresh valve grind on the heads.. not just what
they came with
Quote:
im just wonderin if mabey this single plain manifold could be hurtin my low end a little.it looks like i got a combination of things to address.