why did i slow down with 4R70w

[dangerzone]

my next upgrade will be a V/b and will see how much it picks up, then a converter. ill try one thing at a time, so i can see what helps and how much..

As far as working on my launch, i know the 60's look slow but, i dont know what to do, with the 6 speed, i would leave at 5500 and never spin, it dead hooks, thats all it had. With the auto there is not a whole lot i can do either, the first pass was at idle and the second pass, it was trying to push through, didnt make much difference.

 

[BADASS03SVT]

my next upgrade will be a V/b and will see how much it picks up, then a converter. ill try one thing at a time, so i can see what helps and how much..

As far as working on my launch, i know the 60's look slow but, i dont know what to do, with the 6 speed, i would leave at 5500 and never spin, it dead hooks, thats all it had. With the auto there is not a whole lot i can do either, the first pass was at idle and the second pass, it was trying to push through, didnt make much difference.

you cant find out anything in 2 passes.

you have a 2 step? trans brake? what tire? what rear suspension?

 

[dangerzone]

you cant find out anything in 2 passes.

you have a 2 step? trans brake? what tire? what rear suspension?

not being an a$$ or anything, but when a car hooks and shifts by itself @
6k, its not gonna get any faster, dont matter if you run it 100 more times. And i appreciate all the advice and info givien to me and im takeing them at heart and gonna try the advice that has been given, i just dont like being a test dummy, i was really trying to do an already proven recipe that works, but not working out to well.

it does not have a 2 step, 305-35-18 nitto DR, just a IRS brace and H&R springs, shocks

 

[dangerzone]

any auto cobra's out there, feel free to help me out with some converter chioces.
thanx in advance

 

[dangerzone]

if your a really good driver like you say, it wont gain too much imo by just swapping the trans. but when I say combo the motor is out of the equation. Im talking trans/converter/gears/rear tires.

im thinking the sme thing, a close to 4k pound car with 355 gears and 27' tires with stock converter, i have some 373 available, i may through at it this weekend for starters.

 

[Newskool Mach]

Dude it's absolutely the converter. I went from the my stock Mach converter to a 3200 Stall PI converter and dropped 5 tenths. It is like dumping the clutch at 2000 and dumping at 5000. Big difference. Also don't fear the stall. Our motors love the revs and the torque multiplication of a stalled auto. Get with the converter specialist of your choice give him your mods and where you want to be and he will build you one. Believe me it was one of the best mods I did other than the SC. You can try Darrin at BC Automotive he is the 4R70W guru.

BC Automotive

 

[90goldtsiawd]

any auto cobra's out there, feel free to help me out with some converter chioces.
thanx in advance

Dude listen to what BADASS03SVT's trying to tell you. The guy's got an auto and it's one of the all time fastest eaton cobra's

 

[dangerzone]

Dude it's absolutely the converter. I went from the my stock Mach converter to a 3200 Stall PI converter and dropped 5 tenths. It is like dumping the clutch at 2000 and dumping at 5000. Big difference. Also don't fear the stall. Our motors love the revs and the torque multiplication of a stalled auto. Get with the converter specialist of your choice give him your mods and where you want to be and he will build you one. Believe me it was one of the best mods I did other than the SC. You can try Darrin at BC Automotive he is the 4R70W guru.

BC Automotive

thanx alot,,thats encouraging

 

[dangerzone]

Dude listen to what BADASS03SVT's trying to tell you. The guy's got an auto and it's one of the all time fastest eaton cobra's

Im listening to him, and i appreciate his advice and help, along with all others. thanx to all

 

[BADASS03SVT]

not being an a$$ or anything, but when a car hooks and shifts by itself @
6k, its not gonna get any faster, dont matter if you run it 100 more times. And i appreciate all the advice and info givien to me and im takeing them at heart and gonna try the advice that has been given, i just dont like being a test dummy, i was really trying to do an already proven recipe that works, but not working out to well.

it does not have a 2 step, 305-35-18 nitto DR, just a IRS brace and H&R springs, shocks

well your clearly not listening....and clearly dont know much about racing a car.

i went from 10.9s to 10.5s in my car with no power changes w/ the 4r70w. all suspension, converter and a little weight removal. there are so many things you can do to gain ET without adding power. you are NOT running that car near its potential but if you think thats as good as its gonna get, then that IS all you will get. I cant help the non willing. good luck,

 

[dangerzone]

well your clearly not listening....and clearly dont know much about racing a car.

i went from 10.9s to 10.5s in my car with no power changes w/ the 4r70w. all suspension, converter and a little weight removal. there are so many things you can do to gain ET without adding power. you are NOT running that car near its potential but if you think thats as good as its gonna get, then that IS all you will get. I cant help the non willing. good luck,

DUDE,,1st things first, the last street car i built from groung up was drove to the track and run three 5.80 passes, back to back, to back, and then drove home 70mph. i know race cars.

Im trying to compare apples to apples, im comparing auto v/s manual, hell, i could have thrown all the suspension stuff and weight reductions at the maunel and went faster, thats not what im debating. i have just heard from so many people of cobra's picking up alot of et by swaping to auto's. And now that i know my converter and V/B need changing, i can fix those changes and compare again, without changing weight and susp. All that stuff will come later on.

 

[dangerzone]

.

you are NOT running that car near its potential but if you think thats as good as its gonna get, then that IS all you will get.,

i have admitted that in previous post, account of not knowing if tune would be off as in most case the timming and fuel curve is a good bit different between auto's and man's.

 

[BADASS03SVT]

DUDE,,1st things first, the last street car i built from groung up was drove to the track and run three 5.80 passes, back to back, to back, and then drove home 70mph. i know race cars.

Im trying to compare apples to apples, im comparing auto v/s manual, hell, i could have thrown all the suspension stuff and weight reductions at the maunel and went faster, thats not what im debating. i have just heard from so many people of cobra's picking up alot of et by swaping to auto's. And now that i know my converter and V/B need changing, i can fix those changes and compare again, without changing weight and susp. All that stuff will come later on.

and no one puts in a stock trans into a Cobra. its silly. if you had a 5.80 car you would know the converter your using is crap then

 

[dangerzone]

well, i scratched my head when i started reading about people using mach1 converters.
But there are a lot of people using them and talked good about them. theere like a 2400-2700 stall, like the mark8. What about the Lido guy who puts down over 600 with the mach converter.
im not a pro at this mod stuff and dont know what works and what dont as far as my converter chioce, but ilike i said, i read several article about them , and i had one so i threw it in, no biggie, it can be changed.

 

[BADASS03SVT]

well, i scratched my head when i started reading about people using mach1 converters.
But there are a lot of people using them and talked good about them. theere like a 2400-2700 stall, like the mark8. What about the Lido guy who puts down over 600 with the mach converter.
im not a pro at this mod stuff and dont know what works and what dont as far as my converter chioce, but ilike i said, i read several article about them , and i had one so i threw it in, no biggie, it can be changed.

dyno numbers mean squat. you could have a 1500 converter and still put that power down. the stall just gets the car moving faster

 

[Newskool Mach]

dyno numbers mean squat. you could have a 1500 converter and still put that power down. the stall just gets the car moving faster

Actually the unlocked stall hurt my RWHP numbers but the car still went .5 faster.

 

[BADASS03SVT]

Actually the unlocked stall hurt my RWHP numbers but the car still went .5 faster.

well yea.....we are tlaking 4r70w so I would hope he has lockup

 

[Newskool Mach]

well yea.....we are tlaking 4r70w so I would hope he has lockup

It's a single disc lock up, not really strong enough to lock up at wot.

 

[BADASS03SVT]

It's a single disc lock up, not really strong enough to lock up at wot.

most do. at least thats what I read online. and on the dyno I dont see why it would matter.

 

[dangerzone]

i talked with baumann electronics today and they sell a V/B upgrade kit which includes directions and a few springs and washers, and some drilling out of the stock V/B.
Would this be the same as buying a aftermarket V/B? I know some companies like PA use a stock V/B, they just modify it and the seperater plate. it only 115 bucks, but if its not gonna do me any good, i just assume buy a lentech or somthing.