My S15 powered S14 240SX 1/4 mile times

Post by **nisstek** » Thu Jul 24, 2003 5:53 pm

I just ran a 14.40 at 98 MPH at Bristol Dragway. Bone stock S15 swap, 10 psi boost, APEXi N1 exhaust, BLITZ downpipe, gutted cat, Greddy Suction pipe. I think the driver slowed it down about 3 or 4 tenths.

What are you S14/S15 SR guys running in better air?

Post by **BuudWeizErr** » Thu Jul 24, 2003 5:53 pm

You should be hitting 13's on 10psi.

Or do you have a SMIC?

what was your 60' ?

Post by **MainEvent212** » Thu Jul 24, 2003 5:53 pm

hm...u sound like ur not the best driver...

Post by **240SXer** » Thu Jul 24, 2003 5:53 pm

You should be pushing around 290hp with that setup. 14.4 isnt that good. How was your traction? Post the entire time slip

Post by **nisstek** » Thu Jul 24, 2003 5:53 pm

All stock. side mount and all. 60'= 2.11. thats the driver factor hindered by KUMHO's. My tach is FUBAR so I'm short shifting at least 1 gear per pass. All I need are sticky tires, a tach (very important when drag racing), and practice to run 13's. Its been 10 years since I last went down the 1320. No its not like riding a bicyle. I'm pretty proud of my 14.40, though.

Post by **nisstek** » Thu Jul 24, 2003 5:53 pm

Here's my time slip as requested.

R/T 0.04160' 2.184330 6.0791/8 9.297MPH 75.711000 12.0771/4 14.438MPH 97.18

Post by **gibbo80** » Thu Jul 24, 2003 5:53 pm

nice rt, im glad someone is posting with that engine, rarety it seems

Post by **Rockenreno** » Thu Jul 24, 2003 5:53 pm

yeah, I would think you'd be able to run high 12s once you get it down. I know people who run low 13s with pretty much "stock" s13 redtop sr20s... with an s15 engine... *gah* :drooling:

I'm sure you'll see your times get better significantly as you as a driver improve. Good luck!:D

Website · Post by **TurboKA37** » Thu Jul 24, 2003 5:53 pm

do u have a sound system or anything else adding weight to ur car?

Post by **Unnatural** » Thu Jul 24, 2003 5:53 pm

Let's not forget that Nisstek is running in Bristol, TN. Bristol Dragway is 1,475ft. above sea level. I forget what the official correction factor is but he is posting uncorrected numbers. That 14.40 would have been a bit quicker at sea level and the 98mph trap speed would be faster. A 2.1 sec. 60' is not all that bad on street tires (excluding DOT slicks/drag radials). Get that tach fixed and try it again. Then rip that SMIC out of there and throw it on eBay. Get a FMIC kit for that S15!

How'd it feel to get back on the 1320 again? That's a very nice setup you have there. Good to see an S15 swap! :thumbup BTW did you get the A/C to work in your S14?

Post by **nisstek** » Thu Jul 24, 2003 5:53 pm

Rockenreno wrote:yeah, I would think you'd be able to run high 12s once you get it down. I know people who run low 13s with pretty much "stock" s13 redtop sr20s... with an s15 engine... *gah* :drooling:

I'm sure you'll see your times get better significantly as you as a driver improve. Good luck!:D

"Pretty" much stock Red Tops dont run 13's. I dont care if Bob Glidden or Warren Johnson is driving. With the setup I have, my car will not run any better than 13.8 (at Bristol). That would be everything perfect. I'm man enough to accept that.

Post by **I H8 UR DSM** » Thu Jul 24, 2003 5:53 pm

with the mods you have and tires, and boost, i'd say low 14 would be about right.

Post by **zombieman** » Thu Jul 24, 2003 5:53 pm

did you have lsd on your car?

a stock s13 sr20 runs 14.5 or was 14.7, all i remember was that it ran under 15.

Post by **nisstek** » Thu Jul 24, 2003 5:53 pm

zombieman wrote:did you have lsd on your car?

a stock s13 sr20 runs 14.5 or was 14.7, all i remember was that it ran under 15.

Mid 14's sounds closer, I'm thinking HI 14's. But there's not any around here that I know of. Yes its a helical unit out of the S15. All S15's are LSD, according to my Aussie Service manual. before I get flamed for having an Aussie motor. No its not. Aussie motors wont do 10 psi stock.

Post by **Jookmasta** » Thu Jul 24, 2003 5:53 pm

well u have a sweet reaction time and like it was said b/f, the 60 time is also good. FMIC is the way to be. get that thing and you will be in the 13s even on ur lousiest day. blame it on the air.

Post by **Snoboarder793** » Thu Jul 24, 2003 5:53 pm

theres a S15 front clip complete with ecu and 6 speed transmission and everything for 2900 right now and theres only 13 hours left in the auction i dont know but that sounds like an awesome deal to me

Post by **nisstek** » Thu Jul 24, 2003 5:53 pm

A little off subject, but you gotta have the rear LSD and driveshaft. The six speed combined with slightly longer pinion, because of the speed sensor, in the rear end makes the driveshaft about 2" shorter.

Post by **nisstek** » Thu Jul 24, 2003 5:53 pm

I'll bet that auction mysteriously ends just before the time is up.

Post by **yashin** » Thu Jul 24, 2003 5:53 pm

doesn't an actual s15 silvia run a stock 1/4 mile of 13.9?? with the weight being the same you should run this as well

Post by **nisstek** » Thu Jul 24, 2003 5:53 pm

yashin wrote:doesn't an actual s15 silvia run a stock 1/4 mile of 13.9?? with the weight being the same you should run this as well

Everything I read says 14.20 @ 101 MpH

Post by **Onizuka** » Thu Jul 24, 2003 5:53 pm

I get sub 13 im my car in the 1/4.

did i mention that was minutes?

Post by **sr240se** » Thu Jul 24, 2003 5:53 pm

You shouldn't be running 14's in teh quarter, fi you dont' know how to launch that damn thing. I was happy with my 13.00 with no differential and at 15 psi with a nice front mount. Learn how to launch!!

Post by **nisstek** » Thu Jul 24, 2003 5:53 pm

sr240se wrote:You shouldn't be running 14's in teh quarter, fi you dont' know how to launch that damn thing. I was happy with my 13.00 with no differential and at 15 psi with a nice front mount. Learn how to launch!!

I was wondering when Shirley Muldowney was going to jump in!13 flat??....whatever dude. Read the whole post prior to making yourself looking like a jerk.

Post by **y3llows14** » Thu Jul 24, 2003 5:53 pm

sr240se wrote:You shouldn't be running 14's in teh quarter, fi you dont' know how to launch that damn thing. I was happy with my 13.00 with no differential and at 15 psi with a nice front mount. Learn how to launch!!

Hmmm...no differentials huh? How you gonna put those 13 second 1/4 passes power to the wheel?

Post by **Rockenreno** » Thu Jul 24, 2003 5:53 pm

nis... I still think you could run low 13s or high 12s with just some minor engine work/tuning (FMIC, boost controller tuning, etc) and some practice. Lets keep in mind that 14s is still damn fast, but I think you'll drastically improve once you get used to the car more

Once again, good luck!

Post by **nisstek** » Thu Jul 24, 2003 5:53 pm

The voice of wisdom. I think you are 100% correct.

Post by **GodzillaFan** » Thu Jul 24, 2003 5:53 pm

i tend to agree with some of the posters here... your running a slower trap speed then a stock s15, with mods (exhaust)but that could all the attributed to your messed up tach...and slightly heavier s14what were the temps at the track?

btw, does anyone else realize that 10psi is 10psi be it at 0ft above sea level or 9000 feet?

Post by **Unnatural** » Thu Jul 24, 2003 5:53 pm

GodzillaFan wrote:i tend to agree with some of the posters here... your running a slower trap speed then a stock s15, with mods (exhaust)but that could all the attributed to your messed up tach...and slightly heavier s14what were the temps at the track?

btw, does anyone else realize that 10psi is 10psi be it at 0ft above sea level or 9000 feet?

Boost pressure is relative. While you may see 10psi on your boost gauge (aka psig) at "9000 feet," I guarantee that the volume of air you're moving is much less than it would be at sea level. The further away you are from sea level the less dense the air becomes. The same effect can be felt on hot and cold days. Boost pressure has little to do with power. What's important is the volume of air you can move at a given boost pressure. However, that boost pressure will vary with mods and environmental conditions. Speaking in terms of ultimate power output 10psig at sea level is very different from 10psig at altitude.

Post by **Snoboarder793** » Thu Jul 24, 2003 5:53 pm

I concur

Post by **jrc90240sx** » Thu Jul 24, 2003 5:53 pm

yeah tell me about it, damn 4500 ft above sea leavel sucks.

you could figure out the amount of boost someone as sea leavel would have to run to make the same power your making. witch i guess would be around 7psi boost at sea leavle would equal your 10 psi boost.

but yeah that some nice times. i have yet to run my car because its a pic of crap.

My S15 powered S14 240SX 1/4 mile times

My S15 powered S14 240SX 1/4 mile times

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