Does anyone know what the stock KA engine on a '91 S13 runs in the quarter mile....just kinda interested and curious....

 

stick or automatic?
An auto will run high 16's, a stick can run mid 15's if you get a good launch.

Dr.

 

A stick on a S13 91 bone stock is rated for a high 16 to low 17 with all of the numbers I have seen. With modifications, you can break into the 15 second range. I would say to expect a 16.5 or so depending on temp, launch, reaction time, etc...

 

my friend hit a 15.0 stock KA 5spd, all int he driving some descent tires and small mods like k&n and small stuffs like that... enjoy the low end torque and get into drifting lol

 

"Small stuffs" could mean a lot of things.

Stock 91 KA (no i/h/e) should be low-mid 16's with a good driver. You can reduce that time with a LSD.

 

ok ill be specific...

KADE
K&N
Apexi n1 catback
street tires

15.0...its all in the driver man... 15's are nothing to be bragging about anyway like i said... use that stock ka for a drift motor... and the n1 hardly gives any increase is any...you want 1/4 times better save up for SR...

 

i honestly dont consider K&N as being a mod, i see it as just another little add on you can buy any day of the week for about didly squat, so excuse me for not adding that in when i say (small stuffs) because iam sure every .xx of a second counts on anyones 15 or 16 second runs

 

I was just curious, I'm not interested in dragging the stock engine anyways....it's just that someone told me that the stock S13 240sx runs mid-17s and that didn't sound right to me.cf

But now I'm kinda interested in how fast the Rb25det will run because that is the actual swap I'm going with...thanks for the info though....

 

mid 17's if it's a slow automatic with a bad driver (lol, me my first time!)

RB will definately be better than 15's though, depends on what you do to it.

Dr.

 

i highly reccomend you rethink your rb25 swap... its effing tite and all , but i mean not assuming anything about your or anything but better have some spare cash just in case example...repairs, ermm certain electrical?? but yeah theres great after market opportunity for the rb...but yeah enthalpy's 539 rwhp SR on stock bottom end is cool too...

 

I agree with Jonas however not totally. You can definately get up there with the SR20 which bolts right in, and has LOTS more support than the RB series. However if you want a challenge and the road less taken, then by all means. It's all up to the money you have I guess and what you want to do.

Dr.

 

The RB25det will mount to stock location with spacers. You will need a custom driveshaft tho. The custom mount is to move the trasmission back so that the shifter is in the stock location. Worth it?

 

not to mention a different sway bar...

 

lol, if you're gonna spend all that $$ on a RB engine and all the parts and custom installs, sway bars should be pocket change.

Dr.

 

if you are really giddy to do a rb swap into your 240... check out unstable hybrids...