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Power to weight Ratio: Why are XJs slow?
- Thread starter CherBear
- Start date
Dr. Dyno
NAXJA Forum User
- Location
- Al Ain, UAE
Except those are dry weights without any fluids. A full tank of gas with all the fluids adds another 180lb, while the optional Offroad Package adds a further 55lb so a stock 4.0 XJ can weigh as much as 3620lb.
My '92 4-door 4WD Laredo with Offroad Package weighed 3575lb with a full tank of gas when it was stock.
Well I apologisze for my numbers, but they were the best the interwebs had to offer at the time.
REDXJ4FUN
NAXJA Forum User
- Location
- fredericksburg VA
That all depends on what year his dodge is and what he has done to it. there are very few xjs that will run with my 1 ton dodge but its not stock.
'94 12 valve. Big exhaust, larger fuel plate. Probably some other mods.
Its pretty fast.... or atleast it sounds like its fast.
PurpleCherokee
NAXJA Forum User
- Location
- MO
I think the OP was just wondering why there seems to be some disproportionation between the quickness of the xj and the apparent power to weight ratios. And that can pretty much be explained with the gearing and drivetrain loss that's already been mentioned.
As far as the 1.8T thing goes, I raced one from a stoplight to about 50 and it was freakin close but he pulled less than a length on me. The 1.8T looked pretty much stock but I could definately hear the turbo so maybe he had intake. And my jeep just had exhaust and a drop in K&N. And the typical ricers with civics with a fart cannon and a wing I would routinely whip the snot out of, which was always hillarious.
I think it's pretty funny how there are some huge losers on this board that seem to lead a "purplecherokee-centric" life; apparently because they have no life of their own. Some of you guys need to being so high and mighty and stop flaming a guy for askin a legit question. No, not everybody is very well versed in performance, that's what this board is for!
As far as the 1.8T thing goes, I raced one from a stoplight to about 50 and it was freakin close but he pulled less than a length on me. The 1.8T looked pretty much stock but I could definately hear the turbo so maybe he had intake. And my jeep just had exhaust and a drop in K&N. And the typical ricers with civics with a fart cannon and a wing I would routinely whip the snot out of, which was always hillarious.
I think it's pretty funny how there are some huge losers on this board that seem to lead a "purplecherokee-centric" life; apparently because they have no life of their own. Some of you guys need to being so high and mighty and stop flaming a guy for askin a legit question. No, not everybody is very well versed in performance, that's what this board is for!
Dr. Dyno
NAXJA Forum User
- Location
- Al Ain, UAE
By today's SUV standards the XJ is very light in comparison to others so if you build up a mild 4.6 stroker putting down about 200hp at the wheels or 250hp at the crank, the power/weight ratio is pretty impressive and the XJ will go like a raped ape with a 5-speed AX15.
PurpleCherokee
NAXJA Forum User
- Location
- MO
Very true. You'd be hard-pressed to find a new suv that weighs less than 4300 pounds much less around 3300 pounds.
bjoehandley
NAXJA Forum User
- Location
- WeGo, Chi-Town, Ill
I'm suprised to see mid sized cars that weigh 3300# or less any more.
bjoehandley
NAXJA Forum User
- Location
- WeGo, Chi-Town, Ill
SAme here.
-96JeepSpeed-
NAXJA Forum User
- Location
- Tweaker Valley CA. (Spring Valley)
My 96HO has 155HP at the wheels and 212 foot punds and wighs in at 3400+/-. It does 0-60 in 13 seconds. That was with 31 and 355s and a AX-15.
JJacobs
NAXJA Forum User
- Location
- Fort Collins CO
My pos 89 with 230,000 on a 4.0, 3.07 and 31's apparently does 0-45 in 14 seconds. The accelerometer gadget also called it 62 rwhp and I believe it.
Hahah, could it not quite make it to 60?
my 99 ran a 17.5 :dunno:
http://www.naxja.org/forum/showthread.php?t=945509
http://www.naxja.org/forum/showthread.php?t=945509
JJacobs
NAXJA Forum User
- Location
- Fort Collins CO
Nope, was running out of road. It's funny, when I used to commute down the highway in both Jeeps some days I'd forget which one I was in after all the noise in the MJ seemed to fade to a faint buzz. The view over the dash is the same. Until I hit the throttle, then I'd remember real quick.
