Hey all im just checking how fast an xb with 6,000 in mods to engine just wondering if i should buy one?

what engine mods are you talking about. we wouldnt be able to tell you anything without knowing that.

Same old stuff headers, air intake, possibly turbo, exhaust, i would get new suspension, brakes hwo fast would a car with all this go an xb that is?

if its turbo, then i guess it would go faster than a stock xb since ur prolly talking about 130 to 140 or so hp compared to the stock 108 hp. but with most of all the other stuff (excluding turbo) they only provide minimal hp which is pretty much the stock hp being freed up. it will just be quicker to go as fast as the stocks seeing that these are not race cars.

hello,
i think you might be able to go maybe 200 mph.hehehe!!

hello,
i think you might be able to go maybe 200 mph.hehehe!!
Yeah, if you park it in the belly of a C-17 Globemaster. :lol:

$6K will get you a lot. The blitz supercharger is $3k, you could do that, an exhaust, header, and intake for a little over $4k in parts. I don't know much about engines, but I imagine you could do a swap for that much. It's not going to be a racecar ever, but you could make it get out of its own way.

it's a xB, the vehicle is not built for speed, I understand modding and tuning it out, but the car will never ever be listed and or catagorized as a fast automobile...

6,000.00 would be better placed in fabrication and sound....,in my eyes anyways..

If I was you I'd just spend the $1200 on intake, headers, and exhaust, then just make the car look/sound cool. That's just me.

And realisiticly, where would you use a car with a ton of power legally anyway? THe only practicality I can see with it would be better acceleration times which could help merging onto a crowded highway easier. Unless you take it to a drag strip, driving it more than 90mph on a highway is kinda foolish and very dangerous. In my opinion.

hello,
i think you might be able to go maybe 200 mph.hehehe!!
Yeah, if you park it in the belly of a C-17 Globemaster. :lol:

:lol: :lol: :lol:

where would you use a car with a ton of power legally anyway?

power... hehe... yeah... 140hp... FREAKIN' BLAZING HORSEPOWER....



SUNDAY, SUNDAY, SUNDAY, come see the nitro xB on display.... SUNDAY.... BE THERE!!

SUNDAY, SUNDAY, SUNDAY, come see the nitro xB on display.... SUNDAY.... BE THERE!!
Yeah, it's got a hemi. :lol:

$6K will get you a lot. The blitz supercharger is $3k, you could do that, an exhaust, header, and intake for a little over $4k in parts.

the superchargers/turbos almost alway have their own intakes...

SUNDAY, SUNDAY, SUNDAY, come see the nitro xB on display.... SUNDAY.... BE THERE!!

Now that was too funny


te biggest obsticle for top speed in our boxes is the gearing.
my 5spd does
4K at 80 mph, it doesn't leave a ton of room in the tach for much over 130. (if i know the gear ratios i could tell you the mechanical top end)

$6K will get you a lot. The blitz supercharger is $3k, you could do that, an exhaust, header, and intake for a little over $4k in parts.

the superchargers/turbos almost alway have their own intakes...

SUNDAY, SUNDAY, SUNDAY, come see the nitro xB on display.... SUNDAY.... BE THERE!!

Now that was too funny


te biggest obsticle for top speed in our boxes is the gearing.
my 5spd does
4K at 80 mph, it doesn't leave a ton of room in the tach for much over 130. (if i know the gear ratios i could tell you the mechanical top end)

actually you already have the numbers... if redline is 6000, then top speed is 120... because 4000 = 80mph... but that is theoretical, because your car maxes out top speed when the horsepower being produced is equal to the drag... so it doesn't matter what rpm, because horsepower is a unit of work, and drag is the opposite... if we only have 50hp, then our top speed would be about 70... and it wouldn't matter if you have 4spd or 6spd tranny... gear reduction DOES NOT increase horsepower to the ground... it changes tourque which is why 1st is so much "quicker" than 5th...

the question **as i read it**

if you had 6000 and could work the motor for more HP
what would the top end be.

the answer is about 125-130 mph (due to gearing limitations, red line in top gear)

now the real question is how fast can you reach top speed??

the question **as i read it**

if you had 6000 and could work the motor for more HP
what would the top end be.

the answer is about 125-130 mph (due to gearing limitations, red line in top gear)

now the real question is how fast can you reach top speed??

ding ding ding u got it right

well, besides the motor work, you'll need to find a better way to plant that power.
being a light car has some disadvantages...

well, besides the motor work, you'll need to find a better way to plant that power.
being a light car has some disadvantages...

ah, now we have a contradiction... why do you need to weigh more??

top fuel dragsters weigh about what our car weighs... but they are over 6000hp... they can do 0-60 in under 1 second... how?? easy... it is called traction... and dont' believe that a stupid wing gives downforce at 20mph... it is because the tires are literally glued to the groun...

your exactly backwards on this one, you want to weigh less.. for performance it is usually measured in lbs per hp... so a 4000 lb Diablo with 600hp, is about on par with a 2000lb car with 300hp... but actually you could probably even get away with less on the lighter car... check out the new Lotus.. 2100lbs and 190hp.... and that thing is a rocket...

the reason that you think this way is because "in the days of yore", you could only get high horsepower in big engines which were typically available in large cars... but this isn't even close to true now... An EVO or WRX STi will whoop any production car from the 50s or 60s...

weight doesn't give you more traction, it gives you more inertia... so my point is that it is a trade off, and not "better"... if anything you want balanced weight, you need to look at things like center of gravity or front to back weight ratios... in a car like ours you might could benefit from having as much as 70% of the weight up front...

science time... take a weight, hang it on a string... accelerate smoothly in your car... the angle of the string is the sum of the accelerations of your car... at 0mph your acceleration is 32ft/sec/sec DOWN... (there is a nick name for it... "gravity")... okay, so say you can accelerate so hard that the string/weight swings up to 45 degrees, this means that the car is seeing equal acceleration from the earth and the car... there are maybe 3 cars on the planet that can pull this off from the factory... point being is that the weight is pointing in the reaction force direction that your car's center of gravity... you want this angle from the center of gravity to point to the driving wheels... so this is why rear wheel drive cars have it so easy on the drag strip... but under light acceleration this pendulum doesn't swing very much so for a normal front drive car, you will have better traction... so this is why people prefer FWD on ice... and RWD do better at the track...

ah, now we have a contradiction... why do you need to weigh more??

top fuel dragsters weigh about what our car weighs... but they are over 6000hp... they can do 0-60 in under 1 second... how?? easy... it is called traction... and dont' believe that a stupid wing gives downforce at 20mph... it is because the tires are literally glued to the groun...

your exactly backwards on this one, you want to weigh less.. for performance it is usually measured in lbs per hp... so a 4000 lb Diablo with 600hp, is about on par with a 2000lb car with 300hp... but actually you could probably even get away with less on the lighter car... check out the new Lotus.. 2100lbs and 190hp.... and that thing is a rocket...

nope did not get this one wrong... just did not clearify myself...
finding a better way to plant the power to me means RWD or AWD

and the disadvantage of the light car is in conjunction with FWD. the transfer of weight during aceleration off the front wheels will let them break free easier...

and the dragster has the drive wheels at the very end of its wheelbase. and its wheelbase is somewhere near 225 inches (scion xB 98.4) which helps leverage the wheight transfer.

saint,
man you must be older than me,the air farce aint had them thangs (globe masters) since i dont know when,the kids have never heard of them. fly navy!!! aviation for 37 years. scions forever!!!

ah, now we have a contradiction... why do you need to weigh more??

top fuel dragsters weigh about what our car weighs... but they are over 6000hp... they can do 0-60 in under 1 second... how?? easy... it is called traction... and dont' believe that a stupid wing gives downforce at 20mph... it is because the tires are literally glued to the groun...

your exactly backwards on this one, you want to weigh less.. for performance it is usually measured in lbs per hp... so a 4000 lb Diablo with 600hp, is about on par with a 2000lb car with 300hp... but actually you could probably even get away with less on the lighter car... check out the new Lotus.. 2100lbs and 190hp.... and that thing is a rocket...

nope did not get this one wrong... just did not clearify myself...
finding a better way to plant the power to me means RWD or AWD

and the disadvantage of the light car is in conjunction with FWD. the transfer of weight during aceleration off the front wheels will let them break free easier...

and the dragster has the drive wheels at the very end of its wheelbase. and its wheelbase is somewhere near 225 inches (scion xB 98.4) which helps leverage the wheight transfer.

so remove the spare tire, mount lighter, thinner rims on the rear... take the sub box out of the back... you don't make a car faster by adding weight.. PERIOD... you do it by moving the CG forward... 100lbs = approx 0.1 in the 1/4... that is a standard rule of thumb... a dragster pulls what... 4 or 5 g's off the line...

the xb... 1/4 in 17 secs?? so let's ask Mr. Newton... s=1/2at^2+Vot+so... so=0ft... time = 17... s=1320ft... so we solve for time...
1320=1/2*a*17^2.... a= 9.13 ft/s/s...
dragster ... 1/4 in 5...
1320=1/2*a*5^2.... a=105 ft/s/s...

now we vector to get your angle of weight transfer....
xb.... arctan(9.1/32)= 15 degrees...
dragster... arctan(105/32)= 73 degrees...
this is the reason for the wheelbase... this is weight transfer... 15 degrees ain't crap... anyone peeling out with 108hp just has cheap tires... or a dirty roadway... sorry, 15 degrees shifts the CG back about 9 and 1/2 inches in the scion... lower the car two inches and that goes to 9 inches...

my example, remove the sub box, back seat and the spare tire... say 100lbs from the rear... you get a great little statics problem to work out... trust me, taking away weight to adjust the CG ALWAYS ALWAYS ALWAYS trumps the addition of weight...

just make the car look/sound cool. That's just me.

Hear, Hear! :D

I didn't know Stephen Hawking had an xB. Does the power wheelchair fit in the Back?

6k....is that total for labor included, just engine what....for 6 k you could stroke and turbo the mototr, build the block lighten crank, yada yah, and get around 220 to the wheels, now if you want suspension as well, thats gonna cost more.....or you could just pass right by the tranny problem and drop in a 1zz with a 6speed smg.....but that motor and tranny will run you over 6k alone probably, plus labor fab install and the computer work to hack into the smg brain and make the upshifts as fast as the downshifts.....all of this can be done with enough loot...but if your gonna drop 15k into a scion overall, wouldnt you rather drive a bmw?! but anyways all of this quickness could be used at track events i know someone earlier in the post asked where it would be used...well i would love some coilovers and an extra 100 horse for next friday at the streets of willow, i mean that would be ,uch more fun but oh well ill make due.

brent

I got my box last night. Today I got it up to 105 mph. Took a while to get there. Hard for me to get use to half the horse power of my VW GTI. It seems to me that you could get the car teched out so that it could go fast, but I couldn't see getting it up to more than 230 hp. And then you have the problem with gearing. You would have to do a whole lot to get it going more than 135.