4:10's Trap Speed

[BurnTire]

Does anyone know what the trap speed will be at 6500 RPMs with a 28" Slick with 4:10's and a 6 speed. Just curious when I would run out of gear.

[AZSonicSnake]

do i hear a solid knocking on jeff's door?!?!?! :bounce:

[BurnTire]

do i hear a solid knocking on jeff's door?!?!?! :bounce:

Solid what is that?

Hijacking my thread. LOL

I want to go for a ride in your car with the 3.90's to see how bad the wine is.

[AZSonicSnake]

yup. jack FTW! lol. lemme know, i'd probably even let you take a turn behind the wheel...:twothumbsup:

[BurnTire]

What are you doing tomorrow or Saturday?

[AZSonicSnake]

not 100% sure on friday evening. but on saturday i planned on possibly hitting up psr, and going to speedworld in the evening.

[BurnTire]

Saying rain on Sat.
I was thinking of going to speedworld also.

WTF it is only a half shaft that could break.

[AZSonicSnake]

yucky poopy. no rain on saturday. oh well. if it does i have tickets to a concert too. :woot1:

[Lucafu1]

3.73= 145.218945487042
3.90= 138.8888888888889
4.11= 131.79237631792375

all at 6500 rpms and 28" tall tire.

BTW i have 3.90s whine isnt to bad, unless the rear seat is down. up, not bad at all IMO.

[BurnTire]

3.73= 145.218945487042
3.90= 138.8888888888889
4.11= 131.79237631792375

all at 6500 rpms and 28" tall tire.

BTW i have 3.90s whine isnt to bad, unless the rear seat is down. up, not bad at all IMO.

Well the 4.10's look a like a little too much.

I have no rear seat. LOL

[Dan]

I have 410s with a 28" tall tire and shift at 7200 my speed before I need to change gears will be 153mph as of right now I am going threw the traps at 6500 @ 147 mph

speed world has all the info for you jeff


oh and Im running a C4
Dan

oh and my rear end makes no noise what so ever

[ASUSMC]

Even if they did make noise are you gonna hear them over open headers?

[Ethan@S3M]

I had motive 3.90's on my cobra and they didnt make noise. Its all in how you set them up.

[Lucafu1]

I have 410s with a 28" tall tire and shift at 7200 my speed before I need to change gears will be 153mph as of right now I am going threw the traps at 6500 @ 147 mph

speed world has all the info for you jeff


oh and Im running a C4
Dan

oh and my rear end makes no noise what so ever


That doesnt make any sense. to go that MPH you would need 31.2" of tire with 4.10s at 6500. its math, so it cant be wrong. unless you have non 1 to 1 third gear in your c4.

[Lucafu1]

heres a quick calculator for you guys that wanna play around. its a really good tool.

http://www.race-cars.net/calculators/mph_calculator.html

or if you wanna do the math
MPH = TIRE RADIUS ÷ 168 x ENGINE RPM ÷ GEAR RATIO
RPM = 168 x GEAR RATIO x MPH ÷ TIRE RADIUS
GEAR RATIO = TIRE RADIUS x RPM ÷ 168 ÷ MPH
TIRE RADIUS = 168 x MPH x GEAR RATIO ÷ RPM

[ASUSMC]

Low PSI slicks will get taller the faster they spin because of the G-forces involved so maybe that is the difference????

[Lucafu1]

Low PSI slicks will get taller the faster they spin because of the G-forces involved so maybe that is the difference????

yes i know but a 28" tall tire is still the same tire. with centrifigual force it would have to grow over 3"? not registering in my head i guess.

[ASUSMC]

I'm sure it could at the correct PSI and I have no idea what PSI Dan is running so can't be sure.

[Viper_ed]

Just ask Lou, that is the combo he runs. I'd ask himm for you, but ummmmm, you know, he doesn't want to talk to me!

[Lucafu1]

it has more to do with the side wall of the slick then the psi since that is the part that will stretch and make the tire grow

[silver03cobra]

Dont Let Jeff Drive Your Cobra!!!!!!!

He Will Go Race Old Guys In Vetts!

Ha Ha Ha Ha Ha Ha

[P Machy]

SonicVenum almost hit his rev limiter (set at 7000 rpm) while trapping 131.96 at a Sea Level Track.

He was pretty informative when he raced, but then again, he was losing alot of air from the screwed rims he had.

From the tires I ran, the combination of tire pressure and duration of the burnout effected my top rpm too.

[BurnTire]

Dont Let Jeff Drive Your Cobra!!!!!!!

He Will Go Race Old Guys In Vetts!

Ha Ha Ha Ha Ha Ha

And they get their ass handed to them:biglaugh:

[BurnTire]

SonicVenum almost hit his rev limiter (set at 7000 rpm) while trapping 131.96 at a Sea Level Track.

He was pretty informative when he raced, but then again, he was losing alot of air from the screwed rims he had.

From the tires I ran, the combination of tire pressure and duration of the burnout effected my top rpm too.

I think 4.10s are a little too much.

I will go with 3.73 or 3.90's.

[P Machy]

I think 4.10s are a little too much.

I will go with 3.73 or 3.90's.
I seen one too many motive gears lose a tooth or teeth.... 3.73 would be nice if you have the trap speed and 4.10's is almost perfect for my track. Almost meaning I wish I had taller tires then 25.7"...cross the line 400rpms beyond 6200 and forget sea level. 6700 ~ 6800rpm's.

[BurnTire]

I seen one too many motive gears lose a tooth or teeth.... 3.73 would be nice if you have the trap speed and 4.10's is almost perfect for my track. Almost meaning I wish I had taller tires then 25.7"...cross the line 400rpms beyond 6200 and forget sea level. 6700 ~ 6800rpm's.

Ultimately I would like to trap at 133-134 and Low 10's.

The tracks are strict out here if you exceed 135 or go under 10.

[P Machy]

Ultimately I would like to trap at 133-134 and Low 10's.

The tracks are strict out here if you exceed 135 or go under 10.
over 135mph? 140mph is where I thought you needed to worry about?

3.73's look like you gear, but wont 28" tall tires be too much?

I believe it is ok to over rev just a tad bit at the big end, but not by too much. Dont you only need like 138mph to dip into the 9's anyways? Full Weight, Great Short Time and Ratt Daddy style of shifting?

[BurnTire]

over 135mph? 140mph is where I thought you needed to worry about?

3.73's look like you gear, but wont 28" tall tires be too much?

I believe it is ok to over rev just a tad bit at the big end, but not by too much. Dont you only need like 138mph to dip into the 9's anyways? Full Weight, Great Short Time and Ratt Daddy style of shifting?

Ratt runs the 3:73's and things work well.

I am looking for a good street strip gear.

[5.0Stanger]

Burntire, I just checked Speedworld's mph/rpm range calculator and it says that with a 28" tire and 4.10s, you should be running 132.1138211382114 at 6500 rpm. Of course, that's assuming you're in 4th gear.

Hope this helps.

[BurnTire]

Burntire, I just checked Speedworld's mph/rpm range calculator and it says that with a 28" tire and 4.10s, you should be running 132.1138211382114 at 6500 rpm. Of course, that's assuming you're in 4th gear.

Hope this helps.

I added a ton of calculators to the site due to this question.

Enjoy
http://www.highperformancestangs.com/index.php?page=calc

[P Machy]

I added a ton of calculators to the site due to this question.

Enjoy
http://www.highperformancestangs.com/index.php?page=calc
I dont like the calculater...says i am of not efficient for 120mph :redface:

LOL

[Dan]

That doesnt make any sense. to go that MPH you would need 31.2" of tire with 4.10s at 6500. its math, so it cant be wrong. unless you have non 1 to 1 third gear in your c4.


are you taking in to consideration "tire growth" and converter....... I didnt think so

ask Jeff I went 147mph with my c-4 and 4:10 shifting @ 7200 RPM

how is it not possable
4.10 with 28" tall

6500 = 132.1138
7000= 142.27
7500= 152.43



according to this I can go 152@ 7500 RPM this has not lied to me yet
But I forgot Im stupid
and dont know what I am talking about
according to you

[Dan]

Ratt runs the 3:73's and things work well.

I am looking for a good street strip gear.


Imagine how fast he would go with the proper gear

[BurnTire]

Hey Drama Queen Cupcake Gear God.:biglaugh:
No one said your stupid.
Most people assume a driver shifts at 6500 max. You never stated you shifted at 7200 in the old post.
Your trap speed is attainable with a 4:10 considering tire growth and your shift points.


are you taking in to consideration "tire growth" and converter....... I didnt think so

ask Jeff I went 147mph with my c-4 and 4:10 shifting @ 7200 RPM

how is it not possable
4.10 with 28" tall

6500 = 132.1138
7000= 142.27
7500= 152.43



according to this I can go 152@ 7500 RPM this has not lied to me yet
But I forgot Im stupid
and dont know what I am talking about
according to you

[Dan]

That doesnt make any sense. to go that MPH you would need 31.2" of tire with 4.10s at 6500. its math, so it cant be wrong. unless you have non 1 to 1 third gear in your c4.


I guess you didnt see that I run 7200 RPM with 28s and 4:10....

[Dan]

I have 410s with a 28" tall tire and shift at 7200 my speed before I need to change gears will be 153mph as of right now I am going threw the traps at 6500 @ 147 mph

speed world has all the info for you jeff


oh and Im running a C4
Dan

oh and my rear end makes no noise what so ever



I guess reading isnt one of your strong points either

itrs on the first page and quoted by him too.

[Dan]

... double post

[BurnTire]

I guess reading isnt one of your strong points either

itrs on the first page and quoted by him too.


Ok cupcake.:bounce:

[Lucafu1]

do you see on your post how you say 2 different things? first you say you go through th etraps at 6500 at 147 mph then you say at 6500 you can go 132 mph in post #32. LMAO i dont have time to e-argue. you say 2 different things BTW a converter has shit to do with it and will only hurt your MPH. unless the magic converter changes your gear ratio lol. OMG.

and no i didnt factor in tire growth but according to your MPH you gave at 7200 and 157 or whatever it would have to gromw 2.5". maybe it does i dont know, if it does i need one for my di*k.

but you know what, read your first post and post #32 see how different they are? lol. 7200 at 153mph.......errrr wait, 7500 at 152 mph.

sorry thats all the time i have, i have a physics final to get ready for.

[ASUSMC]

Ok I actually have a question that has something to do with gears.

At roughly 5700-6000 rpm (redline) in 4th gear I am at about 120. Not any faster and I'm not paying too much attention to the gauges at that speed more the road. How is it that people with less power and the same gears can pull 4th to about 140ish???

[Lucafu1]

Ok I actually have a question that has something to do with gears.

At roughly 5700-6000 rpm (redline) in 4th gear I am at about 120. Not any faster and I'm not paying too much attention to the gauges at that speed more the road. How is it that people with less power and the same gears can pull 4th to about 140ish???

i dont know, theres to many things to factor in. do the 2 cars have the same wheel height? is the other car lighter? more aerodynamic? tires filled up more to reduce surface friction? does he rev that car higher? theres way to many factors to consider on a question like this. more info is needed.

PS. i wouldnt trust stock gauges either, they are close but in no way accurate.

[BurnTire]

I have 410s with a 28" tall tire and shift at 7200 my speed before I need to change gears will be 153mph as of right now I am going threw the traps at 6500 @ 147 mph

speed world has all the info for you jeff


oh and Im running a C4
Dan

oh and my rear end makes no noise what so ever


Ok cupcake I re read the post.:bounce:

I guess my reading wasn't so bad I see 6500.

You say your trapping at 6500 RPMS. Which is it 6500 or 7200?

Seems like you are trapping at 7000 with a 29 inch tire to reach 147.

[BurnTire]

do you see on your post how you say 2 different things? first you say you go through th etraps at 6500 at 147 mph then you say at 6500 you can go 132 mph in post #32. LMAO i dont have time to e-argue. you say 2 different things BTW a converter has shit to do with it and will only hurt your MPH. unless the magic converter changes your gear ratio lol. OMG.

and no i didnt factor in tire growth but according to your MPH you gave at 7200 and 157 or whatever it would have to gromw 2.5". maybe it does i dont know, if it does i need one for my di*k.

but you know what, read your first post and post #32 see how different they are? lol. 7200 at 153mph.......errrr wait, 7500 at 152 mph.

sorry thats all the time i have, i have a physics final to get ready for.

I got an A in Physics, Aerodynamics, and Calculus.:pepper:

[Lucafu1]

send me your notes! lol j/k. physics is very cool and a very deep subject, i love it. calc, no so much!

i learned about aerodynamics in the army, sticking my head outside my helecopter at 150+ knots is fun lol. but i did get some -g experience:biglaugh:

[ASUSMC]

I got an A in Physics, Aerodynamics, and Calculus.:pepper:


B in physics, A in Aerodynamics, B in Calculus.

Aerodynamics made sense to me. Physics was harder to grasp ( I know this doesn't make sense). I got a B in Fluid Dynamics cause it made sense but was hard as hell to me. Calculus was easy I just made dumb mistakes on a couple of tests.

[BurnTire]

send me your notes! lol j/k. physics is very cool and a very deep subject, i love it. calc, no so much!

i learned about aerodynamics in the army, sticking my head outside my helecopter at 150+ knots is fun lol. but i did get some -g experience:biglaugh:

LOL That was 18 years ago. Boy I am getting old.

[BurnTire]

B in physics, A in Aerodynamics, B in Calculus.

Aerodynamics made sense to me. Physics was harder to grasp ( I know this doesn't make sense). I got a B in Fluid Dynamics cause it made sense but was hard as hell to me. Calculus was easy I just made dumb mistakes on a couple of tests.

They all make no sense to me now. I never use any of them during day to day operations. Lets see why is the airplane buffeting. Lets calculate the critical angle of attack. LOL
How about push forward and add thrust. Sounds better to me.:hyper:

[Lucafu1]

its ok, i took calc for the first time in 1998. so im getting there lol.

[Lucafu1]

They all make no sense to me now. I never use any of them during day to day operations. Lets see why is the airplane buffeting. Lets calculate the critical angle of attack. LOL
How about push forward and add thrust. Sounds better to me.:hyper:

LMAO:laughing:

[ASUSMC]

Its really kinda crappy that I spent all that money on those classes and I will probably never use them. ASU is really expensive and now going to GCC for firefighting is much cheaper.

[BurnTire]

Its really kinda crappy that I spent all that money on those classes and I will probably never use them. ASU is really expensive and now going to GCC for firefighting is much cheaper.

I thought you wanted to be a pilot?

[ASUSMC]

I thought you wanted to be a pilot?

I have since I was a kid. Thats the reason I spent all the money on taking classes like Aerodynamics and Fluid Dynamics. But I just decided that I would take a semster off to join the Marine Corps Reserves and have them pay for it (didn't work out because of my previously blown out knee). ASU in the time I took that one semester off changed graduation requirements that I would have to go to school for another whole year making it 7 years of school (full time) for my BACHELORS. I just can't afford that with the car (just the payments and insurance) and living alone.

That being said I hope to get my Private license in a couple years here cause I do love flying.

[BurnTire]

I have since I was a kid. Thats the reason I spent all the money on taking classes like Aerodynamics and Fluid Dynamics. But I just decided that I would take a semster off to join the Marine Corps Reserves and have them pay for it (didn't work out because of my previously blown out knee). ASU in the time I took that one semester off changed graduation requirements that I would have to go to school for another whole year making it 7 years of school (full time) for my BACHELORS. I just can't afford that with the car (just the payments and insurance) and living alone.

That being said I hope to get my Private license in a couple years here cause I do love flying.

If you want to fly for a career bite the bullet now. You can have all the toys you want when your pulling down a 6 figure income.

[ASUSMC]

IF firefighting falls through there is always the Pan-Am school about a mile from my apartment.

[Dan]

do you see on your post how you say 2 different things? first you say you go through th etraps at 6500 at 147 mph then you say at 6500 you can go 132 mph in post #32. LMAO i dont have time to e-argue. you say 2 different things BTW a converter has shit to do with it and will only hurt your MPH. unless the magic converter changes your gear ratio lol. OMG.

and no i didnt factor in tire growth but according to your MPH you gave at 7200 and 157 or whatever it would have to gromw 2.5". maybe it does i dont know, if it does i need one for my di*k.

but you know what, read your first post and post #32 see how different they are? lol. 7200 at 153mph.......errrr wait, 7500 at 152 mph.

sorry thats all the time i have, i have a physics final to get ready for.
Obviously you have never made an Error or a typo. However I would have though with your education that you could have figured that out for your self. I guess I gave you too much credit.

and that is not what you quoted either

[BurnTire]

So would it be safe to say you are trapping a little closer to 7000 for the 147 speed? I factored in 1" of tire growth.

[Lucafu1]

Obviously you have never made an Error or a typo. However I would have though with your education that you could have figured that out for your self. I guess I gave you too much credit.

and that is not what you quoted either

oh ive made many. just dont go off saying im calling you stupid and whatever else you said, cause i wasnt. all i said is that it didnt make sense, math didnt ad up. maybe your running wheels that arent as wide and your tire is growing on the big end more then usual. i dont know, that why i brought it up.

btw i dont consider myself well educated or smart. there is always someone that is smarter then you, so i keep an open mind. maybe they do grow 2.5" on the big end, maybe they dont. you shouldnt take any post or idea that is different then yours as a threat. youll never learn anything new. JMO.:gather:

[Dan]

oh ive made many. just dont go off saying im calling you stupid and whatever else you said, cause i wasnt. all i said is that it didnt make sense, math didnt ad up. maybe your running wheels that arent as wide and your tire is growing on the big end more then usual. i dont know, that why i brought it up.

btw i dont consider myself well educated or smart. there is always someone that is smarter then you, so i keep an open mind. maybe they do grow 2.5" on the big end, maybe they dont. you shouldnt take any post or idea that is different then yours as a threat. youll never learn anything new. JMO.:gather:



Jeff i trap arount 7200 RPM for 145-147..


as for my remark that was in regaurds to what you said about me on AZM and Ill leave it at that:pinkthumb:

[5.0Stanger]

Puhleeze! :uhh:

I even forgot about the tire growth. Good catch, Burntire.

Anyhow, are you getting your original question answered, Burntire?

Too much drama for me here. I'm out.

[Lucafu1]

Jeff i trap arount 7200 RPM for 145-147..


as for my remark that was in regaurds to what you said about me on AZM and Ill leave it at that:pinkthumb:


shoot me a PM on AZM w/ the qoute of what i said and we can talk about it:icon_cool:

[BurnTire]

Puhleeze! :uhh:

I even forgot about the tire growth. Good catch, Burntire.

Anyhow, are you getting your original question answered, Burntire?

Too much drama for me here. I'm out.

LOL

Yes I am crystal clear.

A little drama keeps the place exciting.