WantSome

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

JDMbB

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

WantSome

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?

JDMbB

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.

lonewolfxb

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

the_saint

Yeah, if you park it in the belly of a C-17 Globemaster.

Max2k

$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.

BLeeK

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..

Max2k

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.

NHGrafx

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.

J_A_Trevino

mgithens

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



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

the_saint

Yeah, it's got a hemi.

dgHotLava

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

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)

mgithens

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...

dgHotLava

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??

VtScionGuy

ding ding ding u got it right

dgHotLava

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

mgithens

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...

dgHotLava

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.