Question?

[implict]

What 1/4 mile are u all gettn with the s13 sr20det??? ( basically stock ) like intake and exhaust...

[ST240]

good question, i should guess 15s?

[SpeedRacer1]

Try Mid to low Low 14's with upgraded fuel pump downpipe and intake.

[implict]

hmm..... u sure low 14s???

[SpeedRacer1]

Yes.

[usuck]

Yes.

that sounds about right to me, since an ITR with 200hp runs mid to low 14's.

[777aaron]

I have also heard low 14s on this board before with the redtop in a S13 with the above listed mods.

[ninjak84]

low 14's if you drive it wellthats been the standard quote for as long as i can remember

[ST240]

what about those 1/4 mile calculators

they seem to be pretty accurate. But wouldnt torque have something to do with it too?

-Andre

[I H8 UR DSM]

please put a discription in your Subject line when starting a thread...Not just "Question?" they are all questions, it helps some of us from not haveing to read through a post we would otherwise not...for the future.

it might also get some members to help you that wont when you put something like that, its too generic.

[implict]

K sorry about that.

[I H8 UR DSM]

What 1/4 mile are u all gettn with the s13 sr20det??? ( basically stock ) like intake and exhaust...

i run high 12's low 13's...

with what you listed you'll prob be running low to mid 15's. I dont think you'll get into the 14's, but a 14.9 isnt outta the question.

its not that fast at 7psi at all IMO.

[implict]

so... im not gonna be in the 14's with a stock sr20det... ( with intake and exhaust ) ???

[I H8 UR DSM]

its tuff to say. depends what boost your running. at stock boost, No. If you do intercooler, and fuel pump, then you can up the boost, and you can run a 14 w/ out too much trouble....driving also comes into play, and i dont know you, so its hard to say. I've seen people pull 14.7's w/ stock 7psi boost, but they have FMIC's and fuel pump, which may not really have any effect as 7psi, so its possible you can hit 14's, but not consistantly unless u upgrade fuel, and intercooler....and you 'should' have some sort of engine management, ie. JWT tuned ecu, or apexi S-AFC....

[ST240]

Are the S-AFC's hard to use at all?

And what about power FC? cant you basically tune any aspect with those things?

-Andre

[I H8 UR DSM]

A S-afc is pretty simple to use. If you have a EGT and a/f gauge you can add or take out fuel and get your car running very well. I chose it over a JWT tuned ecu. If your going for something simplistic JWT definitly is the way to go. They'll tune it for you, 'a little' on the safe side is what people say, but its just plug and play and you shouldnt have to worry about anything. They have upgrades, turbo upgrades etc and you send it back to them, and they retune the ecu.some people like the ablity to tune the car themselves, and have the ability to make adjustments on their own. it gives you a higher, but narrower tuning curve.

JWT is definitly easier. its a full easier you just gotta plug in ; )

I dont have a power FC. A power fc is a full ecu. it comes w/ the program for your car. its a basic setup. you can get the power fc commander, which is the handlheld unit that will allow you make adjustments to....?....i dont know how many parameters the power fc has...but it can only be adjusted so much, for a full tune you have to go to an authorized power fc tuning shop or something, someone who has the software i guess, i dont know even 1/2 the details of the power fc unit, i never looked into it fully. for the price, id definitly go w/ a full standalone for that much money, with the ability to tune the car, we have a dyno at the corner.; )

greddy has the 'e-management' ecu also, which is windows? compatible, and can be tuned, but again, i think you have to have the software.

[ST240]

ahh cool. thanks for the info.

You saying you can get more out of an S-AFC?

Also say i had 1 setup tuned with a JWT ecu and i changed the setup (say i bought a different fuel system). Would it work with old JWT ecu or would it have been better to have just bought an S-AFC in the first place.

-Andre

[implict]

K thanx

[FAST ONE]

Have yet to run my car at the track to see what times it would do, but it would be interesting to find out what you guys thing of the mods I have done and speculation as to the times i wil do.....I will let you all know what it does in one week when I receive the ACT clutch/pressure plate combo and install them.

1981 240SXSR20DET (Red Top) Stock Bottom EndARP Cylinder head Studshybrid T4/T3 turbocustom exhaust manifoldTurbonetics wastegate3" downpipe from turbo 3" SR Racing Exhaust systemHaltech E6S8 ECU550cc top feed injectors300ZX TT fuel PumpSX fuel pressure regulatorMSD 6A (car runs on distributor/no coil packs)Front mount intercoolerGreddy BOVACT 5 puck clutchACT Pressure plateI was thinking I could run say 22psi on this setup until something goes wrong. Have a block at home I was planning on building up into something more lethal?:flamer So what do you guys think.

[I H8 UR DSM]

1981 240sx?????????????????????????????????????????????

anyway.....

I dont know your driving skills, and if you've ever dragged an 11 second car before, so its hard to say : )

Id say your looking at low 11's if you got traction.

definitly run it down the 1/4 at 15psi once or twice, then up it to mabye 18 then 22...straight 22psi, will be alittle scary. Bring a nother form of transportation incase you break.

I also dont know how well your haltech is tuned...i dont know anything about you, lol, so its hard to say.....

run racing fuel...and if your not a nitrous hater...a 75 shot will prob get you into the 10's ....

but i guess thats another topic altogether : )

Good luck man, i cant wait to see your results.

We have a SE-R w/ a redtop bluebird SR, running JWT setup, T3/t4, 550cc's, manifold, FMIC, cobra mafs, etc... and we havent ran it yet, i think it will be faster than a 240, just because of the weight difference....but you'll be well into the 11's most likely. can u run a 10 on that setup????????.....dont know.

have fun, drive safe man.

[implict]

Damn doo u will fly... but a 1981 240??? damn... never heard of that

[ST240]

are you saying your SE-R is lighter than a 240sx??

what year and is it 2dr/4dr?

-Andre

[SpeedRacer1]

The S13 Silvia K's with an SR20DET should run a 14.5 in stock trim or so an Aussie website says. Agree or dispute all you want. They chart also said an S15 will run a 13.8 and when SCC drove the S15 in the May 2000 issue they ran a 13.9 so that was pretty accurate.

[implict]

damn.... i wanan run in the 14's

[I H8 UR DSM]

The S13 Silvia K's with an SR20DET should run a 14.5 in stock trim or so an Aussie website says. Agree or dispute all you want. They chart also said an S15 will run a 13.8 and when SCC drove the S15 in the May 2000 issue they ran a 13.9 so that was pretty accurate.

Yes, i'll have to dispute it. Everything ive ever seen from japan is 15.3...ive seen plenty of them run 14.7's on 7psi, w/ 3" exhaust, intake, fuel pump, intercooler. And thats not in stock form

[implict]

so... u think my 89 240sx... with the s13 red top sr20det make 14.5?ive been to the tracks... and i have a good reaction time.. so base it on an ok driver...

[I H8 UR DSM]

your reaction time has nothing to do with your E/T...

If you run 14psi, and have good tires, you should run a sub 14.5...if your 7psi, i dont know.

[implict]

is it possible to rin 14psi on the stock turbo????? without.... doin any damage?

[Chris69427]

Hmm, I'm new to discussing the 240sx, but I know f-bodies, and I've seen LT1 powered 4th gens with only 230rwhp (300fwhp) run in the mid 12s because of good a good 60 foot, meaning they really hooked up pretty hard. On a three link suspension like the f-bodies have, it's pretty easy to get a hard launching car: boxed Lower Control Arms, LCA relocation brackets, and an adjustable torque arm to correct pinion angle... So you guys with modded sr20s should be able to do the same thing, I would think, provided you upgrade the suspension to hook accordingly.

Someone correct me if I'm missing something...

[implict]

damn i wanna run low 14's with the sr20det... without any MAJOR hookups..