Just answer please

Post by **vboyq** » Mon Mar 31, 2003 12:37 pm

I know this has prob. been asked but i can't seem to get a definitive answer under the Big Red Button, I also know that alot of it has to do w/ the driver but here goes: Let say i have a s14 w/ a s13 motor, intake, exhaust, downpipe, 255lph pump, z32 mafs, intercooler BOV, and boost control set at 14psi, a tuned Apexi AFC, stronger cluth and pressure plate and lightened flywheel, and SE LSD

1)U guys think there's anything missing..(Daunt, Jesse..?)and2) what can the expected 1/4 times be??

THANX AGAIN to any replies!

Post by **GraySilvia** » Mon Mar 31, 2003 12:37 pm

1) seems to be a reasonably complete list. You may want to add some wider wheels tires/suspension if you're going for drag racing/autocrossing, whatever...

2) I'd think that low 13's/high 12's are certainly possible on that setup, depending on what tires are used at the track and the skill of the driver. I know i've run 13.1 on basically that setup, sans Z32 maf and AFC.

hope this helps?

Post by **vboyq** » Mon Mar 31, 2003 12:37 pm

That setup i described above is w/ the stock T25 also, of course i would be doing suspension work, not major stuff just stiffer springs and matched struts, w/ sway bars and the such. I did a search on the s14 times and i was being confused, but any other input is welcomed and appreciated, so please do and thanx graysilvia

Post by **GraySilvia** » Mon Mar 31, 2003 12:37 pm

Just for your info, i had the S14 T-28/25 on a red top....however, i know that ken at enjuku ran 12.8 on a T25 on an S13, SO, i think that similar times are obtainable with a T25 setup on an S14......did i mention i was running the stock KA fuel pump and running low 13's??? Still can't believe it lasted! Ran for 6 months before i got the walmart...err, walbro pump

Post by **AllTurBo** » Mon Mar 31, 2003 12:37 pm

depends what you mean by "missing anything". If the car runs and your happy with it, then you are really not missing anything. It also depends on what your goals are.

With the setup you have I don't think high 12's would be out of the question, but more likely mid to low 13's. You could probably up the boost a tad bit more. but after that you may want to think about bigger injectors and a turbo upgrade.

if you don't want to go with a turbo upgrade and want to get your 1/4 times a bit lower you can always get some nice drag tires, maybe a short shifter, stiffer motor mounts. Weight reduction would also help since it's an S14.

Post by **GraySilvia** » Mon Mar 31, 2003 12:37 pm

Oh yeah, if you do run 12's with a T-toosmall, it won't last very long at 14+psi, it'll just get pissed off and die.

Post by **vboyq** » Mon Mar 31, 2003 12:37 pm

Yeah i meant to ask that, do i need bigger injectors for the t25 if i have the walbro pump, and the Apexi uni, also AllTurBo i thought that the t25 was only good for 14lbs b4 it gets inefficient?

Post by **vboyq** » Mon Mar 31, 2003 12:37 pm

Also didn't know that stiffer motor mounts would lower times, i thought it was kinda a maintenance thing?

Post by **GraySilvia** » Mon Mar 31, 2003 12:37 pm

eehh......i got away with 18psi on the T28, but, i have a nismo adj. FPR and had an extra 4psi of fuel pressure...yes, it ran rich, but it let me get away with it

A T25 at 14psi is pushing it, it's basically just a heat pump at that point, so a quality FMIC is a must. The stock 370 injectors will be the biggest limiting factor tho. They're damn close to maxing out at that boost level on stock FP.

The stiffer mounts mean you'll put torque to the ground more effectively. Instead of that torque being absorbed into soft rubber mounts, it goes to the wheels.

Post by **vboyq** » Mon Mar 31, 2003 12:37 pm

oh i see now, so i guess Nismo mounts are now on the list too! Also i will have either HKS or Blitz possibly Spearco intercoolers, so then the 14psi shouldn't be a problem then right?

Post by **I H8 UR DSM** » Mon Mar 31, 2003 12:37 pm

vboyq wrote:I know this has prob. been asked but i can't seem to get a definitive answer under the Big Red Button, I also know that alot of it has to do w/ the driver but here goes: Let say i have a s14 w/ a s13 motor, intake, exhaust, downpipe, 255lph pump, z32 mafs, intercooler BOV, and boost control set at 14psi, a tuned Apexi AFC, stronger cluth and pressure plate and lightened flywheel, and SE LSD

1)U guys think there's anything missing..(Daunt, Jesse..?)and2) what can the expected 1/4 times be??

THANX AGAIN to any replies!

Brakes, and suspension.

prob run a mid 13....s14's are a little heavier (most of those 12's were semi/fully stripped interiors), but then again, open diffs, and your LSD will knock a good .2 seconds off your 60ft if your a good driver : )

Im not a fan of lightened flywheels, it may hurt your 1/4 mile to be honest...you'll have to be the judge on that one.

Relo your battery to the trunk.

Drag radials or slicks.

Tune it good : )

Post by **vboyq** » Mon Mar 31, 2003 12:37 pm

Thanx for the input jesse why would u say that a lightened flywheel hurt, wouldn't it allow me to rev up easier, kinda freeing up the engine a little bit?

Post by **I H8 UR DSM** » Mon Mar 31, 2003 12:37 pm

It also drops RPM faster inbetween shifts.

Post by **vboyq** » Mon Mar 31, 2003 12:37 pm

so the drop in rpm between shifts would actually put me in the lower part of the power band when i shift to the next gear then?

Post by **Silviagirl79** » Mon Mar 31, 2003 12:37 pm

I've actually had nothing but good things to say about my JUN lightened chrome-moly flywheel. It revs quickly and feels like a beast. Also throw in a Z32 fuel filter, they are cheap and flow better than your 240 one. And if possible remove your back seats....

Post by **vboyq** » Mon Mar 31, 2003 12:37 pm

silviagirl do u have an s14 or s13 chassis? also i was gonna go w/ a walbro fuel pump, unless the z32 works better, any one got any opinions on that?

Post by **I H8 UR DSM** » Mon Mar 31, 2003 12:37 pm

she said fuel filter.

Walbro High flow 255 is the popular choice for fuel pumps when swapping to the SR.

Post by **vboyq** » Mon Mar 31, 2003 12:37 pm

whoops.. well anyway is there a better choice in terms of performance and price or just the Z32 will do for the above steup

Post by **I H8 UR DSM** » Mon Mar 31, 2003 12:37 pm

fuel filter or fuel pump?

Use the z32 fuel filter.

Walbro pumps arent the 'best' but are the most popular..it depends a lot on what plans you have for the car. if your not going over 350hp, the walbro is what u want, make sure its the high flow version though.

you can use a 300z fuel pump, but the cost/perf. its not worth it over the walbro

Post by **vboyq** » Mon Mar 31, 2003 12:37 pm

Jesse.. so ur saying that the Z32 fuel FILTER is pretty good for the price? Wouldn't need an aftermarket one w/ what i had planned b4?

Post by **vboyq** » Mon Mar 31, 2003 12:37 pm

BTW jesse what kind of wheels are those on the page 12 on ur homepage listed in your profile

Post by **cosmo** » Mon Mar 31, 2003 12:37 pm

I H8 UR DSM wrote:Im not a fan of lightened flywheels, it may hurt your 1/4 mile to be honest...you'll have to be the judge on that one.

True, revs do drop faster between shifts, but people on skylinesaustralia.com that had R33 GTS-t went from 13.8 to 13.4 with just an Ogura 4.8 kg flywheel.

Just answer please

Just answer please

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