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View Full Version : What can you tell me about this car? Need as much info as possible.


11Past9
01-20-2010, 07:41 PM
1998 240sx w the following:

S14 SR20DET Blacktop with approx 40k
Greddy FMIC
Koyo Radiator
Blitz Downpipe
Greddy TI Exhaust
z32 mass air flow sensor
Tomei 740cc injectors
Walbro fuel pump
Enthalpy tuned ecu 18 psi
Kaaz 1.5 way LSD
Tokiko blue shocks w/ s tech springs
Tires are Potenza REO1R 234/45/17

based on the modifcation info for power adders, fuel, em, suspension and rubber what do you think this car would run in a 1/4 mile with a decent driver?

What kind of WHP/TQ roughly?

What is the safe and unsafe air fuel ratio?

Safe boost levels?

How long to wait/temp before boosting and how long of a cool down before shut down?

godrifttoday
01-20-2010, 08:09 PM
i say high 9's only if u get 1.4 60 foot @ 6000 feet elevation

horsepower about 900whp

safe air fuel ratio about 11.1

about 30 psi before u max out the turbo

i say about 5 min considering u have the 2 fan altima! if u have the ford fan then about 1 min

11Past9
01-20-2010, 08:19 PM
Oh a comedian har har har. Anyways can someone give me a constructive answer? There must be people on here that know and won't respond like a twelve year old.

S14DB
01-20-2010, 08:28 PM
You would run approx 14.204 @ 95.961 MPH

godrifttoday
01-20-2010, 08:45 PM
dude, seriously... so many variables to get u a answer, bad driver alone can be 1 sec off! what's a decent driver? compared to who? and safe boost levels??? when its all about how much power ur motor can take, psi is irrelevant to an extent. its all in ur tune.

ChristopherL
01-20-2010, 08:54 PM
I have a similar setup. I'd say realistically 280whp. 740cc injectors are overkill. I only run 550's at 1.1Bar. 18psi is your max I'd say don't boost higher than that on stock SR. AFR's 11.5-12. Wait for boosting would be when the car is warm.....I'd say since you're actually asking 160degree's. You should have an egt gauge if you want to watch cool down time for the turbo. Or just two or three minutes. The setup feels powerful because of how well the motor spools, it comes on strong and pulls strong. Your drag times would not be good. End of story. You shouldn't ask that. Run it then you have your results.

11Past9
01-21-2010, 06:06 AM
Well since the weather is very cold now should the boost be turned down with the ebc? The ecu was tuned at 18psi but it was a send away ecu tune. The last boosted car I had would run fine at say 17 psi when set in the afternoon of the day before. I forgot and at 5 am the next day on the way to work I was boosting on the on ramp and hit fuel cut because of how cold it was in the morning.

When i said decent driver, I wasn't looking for a super specific time, more like a range. Decent driver I meant a pretty good, not great 60 foot and not a prestine run. I just want to know if this is say a high 12 second car, low 13s etc.

The car has an aem wideband. I want to know what I should be looking out for a safe air fuel ratio and if I see a certain number range that isn't safe what I need to do, and for trouble shooting so I don't hurt the car

I'll be honest I've never dealt with an sr or even a 240 before. I'm learning. I know it's said never to buy a modded car off of someone but this is coming from a friend of a friend who actually built it and I'm just looking for a second opinion on certain things.

Can I and should I turn the boost down considering the temp it is much colder? And the ecu was tuned at 18psi or would that throw off the tune?

Etc etc

clark
01-21-2010, 06:31 AM
think about this...when it's colder, air molecules are denser. more air in your combustion chamber.

my SR LOVES the cold.

turbo cars run more efficient when it's colder out.

well at least the two different turbo cars i've had performed better in colder temperatures.

you shouldn't turn the boost down because of the cold temps, you should probably turn the boost down if you plan on driving this thing all winter. so you don't spin the wheels on black ice or snow.

11Past9
01-21-2010, 06:49 AM
I think just to be safe I'll turn the boost down on the EBC to about 13 pounds.

The 740's and the mass air flow sensor are on it for future plans of a 2871.

Monooxide
01-21-2010, 08:31 AM
I made 273 on ~13 pounds.

11Past9
01-21-2010, 09:00 AM
I made 273 on ~13 pounds.

Similar set up?

Monooxide
01-21-2010, 09:45 AM
S14 SR, Stock everything and bolt ons.

95trd
01-24-2010, 03:52 PM
The car runs low 12's all day long, makes about 350 at the wheels, wait about 30 seconds before shut off. Its a great car man just calm down, there is nothing wrong with it. It runs great and looks great. I put alot of time into this car, and I can assure you it will be good to you

hardcoreindian
01-24-2010, 09:14 PM
First off, this is a super clean car with a lot of time and money put into and seems nothing was overlooked. Second, its really sad too see it go to such a "hero" as yourself. you just bought the car from what i see in other post and are trying to sell half the shit thats on it. my best advice to you would be to sell it and by a miata and try picking up dudes and if that fails .....there is always suicide

Monooxide
01-24-2010, 09:29 PM
First off, this is a super clean car with a lot of time and money put into and seems nothing was overlooked. Second, its really sad too see it go to such a "hero" as yourself. you just bought the car from what i see in other post and are trying to sell half the shit thats on it. my best advice to you would be to sell it and by a miata and try picking up dudes and if that fails .....there is always suicide

First post and you're bringing the hate.

To each their own.

Rabboni
01-24-2010, 09:45 PM
Dude i dont see any reason for you to turn down the boost. It was tuned to run safely at 18psi, so why the hell would you change that.
As for AFRs, 11:1 is the easiest for the spark plugs to ignite. 12:1 is the optimal ratio for max power. 14.7:1 is the best for emissions, and probably the highest you can safely go without leaning it out too much. As soon as you start leaning out more than 14.7:1 the egts will start climbing and get into the dangerous range. So, if you dont mind spending a little more on gas, 12:1 is where you want to be.

11Past9
01-25-2010, 04:15 AM
First off, this is a super clean car with a lot of time and money put into and seems nothing was overlooked. Second, its really sad too see it go to such a "hero" as yourself. you just bought the car from what i see in other post and are trying to sell half the shit thats on it. my best advice to you would be to sell it and by a miata and try picking up dudes and if that fails .....there is always suicide

Well since you're in central pa and oh so e tough you might just wanna stop by and say all of this to me personally if you have such a problem.

steve shadows
01-25-2010, 04:18 AM
Can we either.

A. Ban Bench Racing Threads

or.

B. Have one big central shit head bench racing thread and sticky it for anyone and everyone to bench race there

fliprayzin240sx
01-25-2010, 07:58 AM
The car runs low 12's all day long, makes about 350 at the wheels, wait about 30 seconds before shut off. Its a great car man just calm down, there is nothing wrong with it. It runs great and looks great. I put alot of time into this car, and I can assure you it will be good to you

350 to the wheels with a fucking T28?!!? GTFO!!! No way in hell a stock T28 will make that much fucking power. Now if this thing has a GT2871R, then thats more believable.

Low 12s? Shit...I wanna see a fucking print out of this. Low 13s, maybe high 12s with really good tires and driver on a stock T28.

hardcoreindian
01-25-2010, 08:40 AM
Hey bro i got all the time in the world to tell you that to your face, your just like every other asshat that buys a car he knows nothing about. what was the point of buying it to sell all the shit on it?? Also why dont you get the sand out of your vagina and and look shit up like the rest of us do. I'm on other forums and you posted the same posts on "several" other forums. So if you still feel the need to have a chat face to face hit me with pm.

350 to the wheels with a fucking T28?!!? GTFO!!! No way in hell a stock T28 will make that much fucking power. Now if this thing has a GT2871R, then thats more believable.

Low 12s? Shit...I wanna see a fucking print out of this. Low 13s, maybe high 12s with really good tires and driver on a stock T28.

i agree that 350whp is a little high i have seen also exact setup make around 310whp and run 12.1 on dragradials though

fortezza
01-25-2010, 08:42 AM
well the first thing is i don't understand how Enthalpy tuned ecu is for 18 psi, being you can't set the boost in the stock ecu, you can set the fuel trim and stuff like that.
18psi on the stock turbo is definitely not healthy unless you like broken turbo bits shooting through your motor

11Past9
01-25-2010, 09:04 AM
Hey bro i got all the time in the world to tell you that to your face, your just like every other asshat that buys a car he knows nothing about. what was the point of buying it to sell all the shit on it?? Also why dont you get the sand out of your vagina and and look shit up like the rest of us do. I'm on other forums and you posted the same posts on "several" other forums. So if you still feel the need to have a chat face to face hit me with pm.



i agree that 350whp is a little high i have seen also exact setup make around 310whp and run 12.1 on dragradials though

It sounds like you've got all the time in the world. So take it and go fuck yourself if youre just going to be a douche bag. It's none of your business how I spent my money, if you wanna buy the car and do what you want with it by all means buy it from me if it's that important to ya.

hardcoreindian
01-25-2010, 09:20 AM
haha that's alright e tough guy( that's pretty close to what you called me right?) ill just wait till you wrap it around a tree or put it in a ditch then maybe ill buy a few parts from you. I'm sure its only a matter of time so let me know, i do kinda like those seats maybe even the wheels?

fliprayzin240sx
01-25-2010, 10:02 AM
haha that's alright e tough guy( that's pretty close to what you called me right?) ill just wait till you wrap it around a tree or put it in a ditch then maybe ill buy a few parts from you. I'm sure its only a matter of time so let me know, i do kinda like those seats maybe even the wheels?

He cant really wrap it around a tree when it wont run...guess you missed the other thread where he thinks he can plug in a consult reader to read fault codes on his swapped non-US spec engine. :cj:

IntensePower
01-25-2010, 10:14 AM
Can we either.

A. Ban Bench Racing Threads

or.

B. Have one big central shit head bench racing thread and sticky it for anyone and everyone to bench race there

Sorry couldn't help but, to lmao at this post!!! :spank: ABOVEW

To answer your question without digging into any of your details I would be willng to bet youll run 13's all day long. Been doing this a long long time... 13's sounds about right. (Leaving out all the fluff and banter on what is actually done to this car and what people are guestimating his horsepower to be)

Monooxide
01-25-2010, 12:05 PM
350 to the wheels with a fucking T28?!!? GTFO!!! No way in hell a stock T28 will make that much fucking power. Now if this thing has a GT2871R, then thats more believable.

Low 12s? Shit...I wanna see a fucking print out of this. Low 13s, maybe high 12s with really good tires and driver on a stock T28.

Low 12s isn't unheard of on a Stock T28, I ran 13.01 @ 110 on my S14 SR on 1 bar with 195 Potenza All-Seasons. So, slicks could get a mid 12.