1\4 mile run??

[Spidey]

I was just wondering what a 240sx with a s13 sr20det swap would run in a 1\4 mile?????? stock or with minor mods

[ImportIntelligence]

Mid to Low 13's with a boost controller, without high 13's low 14's

[eniety]

Mid to Low 13s on a stock setup? No way. Even with a boost controller, you don't have the fuel to support it. BLAH.

[MikeS14240sx]

He probably meant to say mid 14's

[Boostn]

But how many completely stock SR20 swaps have you seen? Not many. The swap usually entails at least an air filter, 3" downpipe and exhaust, front mount intercooler, upgraded clutch, upgraded fuel pump, etc. Those are pretty much the requirements for a smooth install, and with those I could see a mid to low 13 happening, so I guess you could consider that 'stock'ish.

[eniety]

I have seen many completely stock SR swaps. With those upgrades, it definately will not be stock. Those upgrades really are not requirements for a smooth install, but they are requirements to run higher levels of boost.

[Spidey]

kool I am about to get the swap done on my 1990 240 and was just wanted to know what to expect when I went for a time slip.

[eniety]

Spidey, Good luck. Keep us posted. You should be ~mid 14s if you are completely stock.

[SRJesse]

I dont know whos driving those cars, but MID 14's??? My friend ran 13.7 with stock everything, not even a FMIC. The only thing he had was k1racing rims....and turned the boost up to 10psi. Let me know what you think......

[89sxRCR]

Does anyone know how many times this question has been asked???? sieriously, look it up and youl find a lot more info. Instead of starting your thread and looking later, see if anyones posted it before.

[Boostn]

So eniety, you've actually seen people bolt in the stock panel air filter box and have 1.75" mild steel downpipes welded up to match the stock exhaust? And then run the stock fuel pump as well? Ouch.

[eniety]

Every day : )

[Zebrahead]

Omg. 10psi isn't stock now is it?

My plan is the motor / fmic / injectors / cams / downpipe / exhaust / boost controller / s-afc / clutch

all @ 13psi

That should be around 250rwhp. On good tires, that should be low 13's to high 12s.

Perfect daily driver.

Nick.

[SpeedRacer1]

HAHA since when did some guy in a civic ever consider: I/H/E, clutch, fuel pump stock (most think they can run up with F1 racers after having those mods).

Stock is stock and please no SR that gets installed into an engine bay in this country is stock more than 5 minutes. Even a filter or downpipe isnt stock.

I dont have an FMIC does that make me less than 'stock'ish?

[Boostn]

I should probably take some stuff off that list. A FMIC isn't really necessary persay, but if your engine doesn't include the stock SMIC, why hunt one down and go to all the trouble of installing something that's close to maxed out anyways? It's kind of a "recommended but not required" part of the swap. Same with an aftermarket cat back.

As a bare minimum, anyone who installs an SR20 into their 240 will have: Intake, Larger downpipe and Fuel Pump. On stock boost, that's a good 20hp. So with 225hp and 2800lbs, you're looking at around a 13.9 @ 97.5mph taking in 11% drivetrain loss.

[SR180SX]

I dont know whos driving those cars, but MID 14's??? My friend ran 13.7 with stock everything, not even a FMIC. The only thing he had was k1racing rims....and turned the boost up to 10psi. Let me know what you think......

Don't think stock with 10psi will ran 13.7, probably not even mid 14's..... maybe high 14 or low 15

[I H8 UR DSM]

i know man...

Race your cars...find out what they run.

I guess id consider myself a drag racer. i dont autocross or anything, i only drag my car...and started building it for that purpose.

We can NOT tell you, or estimate what you will run, too many factors are going to affect the #'s. Driver, driver style, driveline setup, clutch setup, tire selection, tire size, humidity, temp, exp., boost, weight, etc etc etc etc etc etc etc etc etc etc etc..blahblhalblah....

The only way you know is to go drive the thing. I say expect to run a high 14. If you run faster, you'll be happy....i wouldnt go thinking 12's though...

If your running street tires, and open diff, you will struggle to break a 13.6, and im saying that at 14psi..if your running stock 7psi, and stock intake exhaust, etc etc, expect to run a 14.7 or slower.

Jesse12.8@109mph, stock motor, stock turbo, stock ecu, Open diff.

[SRJesse]

My friend that ran a 13.7 wansnt on stock EVERYTHING, but it was mostly stock. I am not sure if he had it set to 10psi then or not, but the only thing he did have that wasnt stock were different rims. I know that the engine was stock, because I now have that engine, and nothing has changed since. Stock fuel pump, stock injectors, stock turbo, stock intercooler......ran 13.7@103 at Atco Raceway. I believe he has the slips to prove it if you want to see them.....

Anyway, I didnt know that stock sr20det's would be anywhere near 15's thats why I said "WHO IS DRIVING!!!" Specially since he ran a 13.7.........oh well just my 2 cents....

[Zebrahead]

I don't think downpipe/exhaust/intake will get you 20HP. Maybe 10 to the wheels. A FMIC can be a bad thing if your car isn't running enough boost. Jeez, who was it that told me this? Speedracer, wanna back me up on this one?

Nick.

[explod3]

i got a stock s13 front mount if you need one. e-mail me for an offer. its sitting in my bed room as a door stop right now.. hehe

[I H8 UR DSM]

My friend that ran a 13.7 wansnt on stock EVERYTHING, but it was mostly stock. I am not sure if he had it set to 10psi then or not, but the only thing he did have that wasnt stock were different rims. I know that the engine was stock, because I now have that engine, and nothing has changed since. Stock fuel pump, stock injectors, stock turbo, stock intercooler......ran 13.7@103 at Atco Raceway. I believe he has the slips to prove it if you want to see them.....

Anyway, I didnt know that stock sr20det's would be anywhere near 15's thats why I said "WHO IS DRIVING!!!" Specially since he ran a 13.7.........oh well just my 2 cents....

it wasnt at the stock 7psi of boost, thats too fast.

Just go look what the Sr runs out of the factory, and put all the arguements to rest...i think that Nissan rates it at 15.3 or something

[SR180SX]

I agree, I am running 7 psi right now and don't think I can able keep up with Supra TT who able to ran mid 13s stock, maybe not even close...

[I H8 UR DSM]

aubrey ran his car last year at the 7psi to get #'s for people and newbies...he ran a 14.5....that was with a large front mount, 3" exhaust, intake, piping, fuel pump, etc...and lsd i think....but thats not stock...so thats why i say 14.5-15.3 totally stock : )

[I H8 UR DSM]

but also for some inside info....this topic came up a while ago on FA, and asad had posted this link....

This is about almost 2 years ago, we took the SER out to englishtown for the first time....about 2 months after the swap, first time down the 1/4, and Jay Haas was there, helped up prep the car for the race, and wrote a story about the car on his SER board, so i will post it for you to read....The SER has gone a best of 12.3 On that same setup you will read about (which i think is the fastest stock Sr time in the US)Joe Manfre owns the car, between his 12.3 and my 12.8 i think we have two of the faster times out of the stock turbo's and motors, they were supplied by different importers, but all the work is done together....

He has a T3/t4, 550cc's, mafs, 3" exhaust, new slicks, fully gutted, etc etc now, so next time the car should pull a nice 11 second time.

http://www.se-r-list.org/archi....html

Jesseeastcoast motorsports : )

[I H8 UR DSM]

or since i think the link doesnt work:

To <[email protected]> From Jay Hässinger <[email protected]> Date Sat, 14 Oct 2000 08:48:59 -0400 Reply-To Jay Hässinger <[email protected]> Sender [email protected]

--------------------------------------------------------------------------------

And I do mean bone stock. I just got back from vacation but was at E-Townfor the Nira event on the 8th. I was wandering around the pits and saw awhite classic and figured I'd stop on by and say "hello". Well, I walk overand see the interheater and hood scoop. O ho hoooo what do we have here?Basically it was a high mile Sentra SE-R that popped the motor and theyswapped in a DET and left it in bone stock condition.

So I asked him what he planned on doing. Well "Joe" said he would be happyjust to make it into the 13's. I said well, lets see if we can do betterthan that, and got to work on the car. Joe was insistent on pulling thewastgate line and letting the turbo run free. According to Joe the T25spikes to about 19psi and then levels off about 15psi under full throttleacceleration. I look and see the stock DE MAF, injectors and theinterheater and said "Welp, if your going to do that lets at least knock thebase timing back to 15*, ice down that intercooler, and fill the tank withrace gas." I also regapped his plugs down to .021 (From .030+) as he wascomplaining about a misfire with big boost.

I adjusted his slick pressure, and gave him some pointers about the burnoutand launch and off he went.

First run 13.3@106mph with a BIG bog out of the hole. Sweet! (Joe did youlaunch at 6000rpm? "No" Do that next time)

Second run 13.2@106 with yet another big bog out of the hole. (Joe did youlaunch at 6000rpm? "No" Do that next time if you want a 12 second run)

Third run the launch was good with some mild wheel spin to keep the turbo onit's game and Whooosh 12.9@108mph on a BONE and I mean BONE stock DET withthe cat on the car, 2.25" exhaust that was so quiet you didn't know the carwas running, stock MAF stock stock stock.

I was impressed to say the least, but at the same time biting my nailsbecuase I knew he was probably running way lean.

I never got anymore information out of him other than he is from Long Islandand was part of a shop called East Coast Motorsports or something.

Anyway just wanted to relay that story on over.

Jay HassingerB14 Turbo

--------------------------------------------------------------------------------Partial thread listing: Stock DET goes 12'sJay Hässinger George Roffe Kirby Martin Possible follow-ups Tait Parkin Frank Orozco

[Boostn]

Race gas plays a HUGE part in the times though. I know a guy with a 95 Talon TSi AWD. Was running 13.5's with a 13.3 best. Finally decided to buy some C-16 and try it out. Dropped his times to a 12.7.

So on race gas and huge boost, low 13's for sure.

[I H8 UR DSM]

yea, ok just keep telling yourself that...

racegas does not make you go faster LOL, it may prevent detonation, and allow you to run more boost, which can get you some more HP, which in turn will give you the opportunity to get better times in the 1/4.....but thats not to say that race gas makes you any faster..

A car will run the same time at 7psi on 92 octane as it would with 114 octane.

A car will run the same time at 19psi on 92 octane as it would on 114 octane.

i think you are looking at things the wrong way, or dont really understand, but adding a higher octane fuel does NOT make you any faster.

You have to realize what a higher octane fuel is doing. It will prevent detonation...it has nothing to do with how fast the car will go.

run huge boost, you may get to the mid 13's BUT have you read this topic? thats not what its about at all....run huge boost with or without racefuel, you will have the same results...one way might just hurt your car faster.

I think you are under some misconception of what higher octane fuel does...(obviosly by the way you call it "racefuel"....) Not trying to flame you, just trying to help you learn...

: )

[Boostn]

Actually, in most occurances, race gas WILL decrease times on it's own with no change in boost. The reason? People running high boost levels on pump gas run into knock, the ECU sees this and pulls back timing, resulting in slower speeds. With the addition to a high octane fuel to this, the pinging and knock will no longer occur, the ECU will leave the timing settings at optimal values, and result in the large drops in ET. Anyone who's spent a lot of time at the drag track will tell you it's not boost that gets you lower times, it's timing. The key is to find that perfect balance where you can run the maximum amount of boost with the least amount of timing retardation. Race fuel helps this process a great deal as it allows you to increase the boost without losing any timing, while also cooling the cylinder more than street fuel will.

But, you're right for the fact that if you put race fuel in a low boost car that was not having any timing problems, it wouldn't do a thing for performance. Just gum up the O2 sensor. But for most racers, they've already taken their car's performance to the point where the volitility of the combustion process is too great and is in turn reducing the speed at which they should potentially be running.

So in a high boost, high performance application, adding race gas with no change in boost can and will result in greater performance. So don't worry about "teaching", I've been there, done that.

[I H8 UR DSM]

ok good : )and good explanation, i just didnt want people to under the assumption that adding race fuel will be adding HP : )

cause that will lead to post like : "i have a sr, with exhaust, and race fuel, so i have 250hp "

[Boostn]

Haha, I know what you mean.

What I've found though is the majority of people who actually start using leaded fuel aren't the "what horsepower level am I at?" guys. They usually have to know about what they're getting themselves into and the reason for it. Just getting the fuel itself will require the person to hunt down a performance shop to buy it. So it's usually safe to say if you see someone in the pits draining their tank, have all the equipment for draining and refueling, and a jerry can of that sweet smelling VP, I'd be pretty sure they're not just putting it in to look cool.