16.1 best 1/4 mile WTF sr20 redtop

For the RWD SR20DET cars! Sponsored by Wiring Specialties.
SRpiccalo
Posts: 73
Joined: Mon Sep 16, 2002 9:25 am
Car: my car

Post

finally got my car runnin strong so i decided to take it to the track expectin to pull atleast low 15's but ended up pullin low 16's which sucks i think the turbo is spoolin a lil late, maybe it could be other problems?


Daunttless
Posts: 3890
Joined: Sun May 12, 2002 7:20 am

Post

Was it your first time at a track?

SRpiccalo
Posts: 73
Joined: Mon Sep 16, 2002 9:25 am
Car: my car

Post

nah..i've taken my car there a couple times with the ka it was the first time with the sr and i've only had it a month or so..that could be a role in the time too

DonDonati88
Posts: 508
Joined: Fri Nov 22, 2002 3:01 am

Post

16.1?? Wow.....

BuudWeizErr
Posts: 4745
Joined: Tue Sep 24, 2002 11:35 am

Post

Whats done to it? I'm assuming totally stock?

User avatar
1bad180sx
Posts: 82
Joined: Fri Dec 27, 2002 2:24 am

Post

3 second 60ft??

implict
Posts: 836
Joined: Tue Jul 30, 2002 5:21 pm

Post

Something has to be f***** !!!!! Im hopeing its not you. :nopity

SRpiccalo
Posts: 73
Joined: Mon Sep 16, 2002 9:25 am
Car: my car

Post

now the car just isn't runnin good after drivin it kinda hard today... i think it might be my MAFS either that or an injector. i have a 3inch downpipe 2.5 inch exaust and a kandN filter stock intercooler

DonDonati88
Posts: 508
Joined: Fri Nov 22, 2002 3:01 am

Post

you need 3 inch exhaust!

blk90s13
Posts: 679
Joined: Tue Dec 31, 2002 10:53 am

Post

what kind boost ?

TheProfessional
Posts: 83
Joined: Mon Oct 28, 2002 7:30 pm
Car: movies, music, cars

Post

3" exhaust isnt a must with low boost settings, however a 16 is piss poor, no offense. write down your time slip exactly, especially 60' time. i would highly recommend investing in some gauges... air fuel, boost, etc. you could see if for some reason youre running extremely rich, or if youre "getting boost late." either way, somethings wrong with the motor or you need some practice. good luck man

BuudWeizErr
Posts: 4745
Joined: Tue Sep 24, 2002 11:35 am

Post

firing on 3 cylinders? that'd do it.

AznRide
Posts: 924
Joined: Sun Nov 03, 2002 5:36 pm
Car: Cars, hondas, import cars, girls, cars, girls, girls, and more beautiful girls.

Post

what about your traction? My old civic Si coupe ran faster than your turbo 240sx...haha. Don't tell me you suck at racing. Something must have gone wrong. Also, I heard that no matter what RPM you are at (just before redline), and your boost gauge is at the max, you need to shift right? My friend drove his brother's Eclipse GSX and didn't know when to shift because the turbo set up was not stock and blah blah blah. Anyways, your Exhaust might be a problem, need 3" dude. What about fuel and igition, are they doing their jobs? Check out if the MAFS is defected (I heard getting a Cobra MAFS helps, but that's just me). Like others said above, investment in guages might not be a bad idea. Let's see how you'll do at the next track date. I'm still hoping to have my car ready for rockfalls, in April.

User avatar
burgy240
Posts: 573
Joined: Sun Jan 05, 2003 4:44 pm
Car: 2000 Q45 Ann. Edition Blk on Blk
Location: Florida
Contact:

Post

hey professional---isn't 16psi past the efficiency of the stock redtop turbo?? I thought that peak output was at about 14psi?

User avatar
1bad180sx
Posts: 82
Joined: Fri Dec 27, 2002 2:24 am

Post

Well, 3" doesn't matter when someone could muster 14s and 15 with a stock exhaust.

I just about guarantee you that the 60ft time is horrible.

krisj144
Posts: 9
Joined: Thu Nov 21, 2002 6:10 am
Contact:

Post

1bad180sx wrote:Well, 3" doesn't matter when someone could muster 14s and 15 with a stock exhaust.

I just about guarantee you that the 60ft time is horrible.


finally, someone said it.....

Adding more mods to a car that isn't performing as it should isn't the correct way to improve. You guys might as well have been telling the guy that he needs a bigger turbo or a FMIC.

I'm planning on installing my sr motor soon so what time would be expected? Using generic formulas I'm thinking something like a 14 @ 97 mph. (http://www.dsm.org/tools/calchp.htm) [you'll have to forgive my dsm way of approaching this solution]

Now, I know those calculations are grossly inaccurate, and I'm not even sure if they figure in drivetrain losses, but even assuming 20% loss he'd be looking at a 15.1 @ 90 (assuming 160 hp to the wheels).

I'm curious to see your slips too. Post those numbers because I'm hoping that you just can't drive.;)

User avatar
1bad180sx
Posts: 82
Joined: Fri Dec 27, 2002 2:24 am

Post

Properly running, he should be making 185hp at the wheels.

Lets see... what simple mistakes could've been made... Fuel Pressure Regulator not hooked up to vacuum?

DonDonati88
Posts: 508
Joined: Fri Nov 22, 2002 3:01 am

Post

What could he possibly be doing wrong?

Maybe he forgot to put the turbo on..lol JUST KIDDING.

SRpiccalo
Posts: 73
Joined: Mon Sep 16, 2002 9:25 am
Car: my car

Post

i can drive my car..it's not the driver i guarantee you, somethin is wrong with the engine.. i was thinkin defective mafs too the car won't idle now unless the mafs is disconected..does that mean that the mafs is broke? all cylinders fire we checked that by disconnecting the coil packs one by one.. i need help bad. oil is burnin real bad from the rear of the engine...can someone give me a link to where i can get the ecu codes for the redtop?

implict
Posts: 836
Joined: Tue Jul 30, 2002 5:21 pm

Post

damn where did u get ur redtop????? cuz i hope no one gets it from the person u got urs from.... :thumbd

I H8 UR DSM
Posts: 3196
Joined: Fri May 24, 2002 8:06 am
Contact:

Post

swap out the mafs, or use the sohc ka mafs, and see if thats the problem...the fact that its not running unless the mafs is disconnected would hint at that, but thats an easy thing to just swich and test.

SRpiccalo
Posts: 73
Joined: Mon Sep 16, 2002 9:25 am
Car: my car

Post

what are the symtoms of a blown headgasket?

I H8 UR DSM
Posts: 3196
Joined: Fri May 24, 2002 8:06 am
Contact:

Post

oil in the coolant, coolant in the oil.....

SRpiccalo
Posts: 73
Joined: Mon Sep 16, 2002 9:25 am
Car: my car

Post

i'm runnin the stock intercooler with an aftermarket bov and one of my plugs for the holes on the intercooler popped off that's my problem but still don't know why i'm runnin 16's trap speed 87 mph

User avatar
1bad180sx
Posts: 82
Joined: Fri Dec 27, 2002 2:24 am

Post

No kidding, blowing that plug at will make your engine choke on FUEL, not oil. What made you think it was oil? The black fuel burning and popping out your exhaust?

AND YOU KEEP AVOIDING THE TIME SLIP QUESTIONS.

SRpiccalo
Posts: 73
Joined: Mon Sep 16, 2002 9:25 am
Car: my car

Post

r/t .984 crappy i know60 2.68330 6.9561/8 10.499 mph 69.511000 13.5341/4 16.101 @87.64

SRpiccalo
Posts: 73
Joined: Mon Sep 16, 2002 9:25 am
Car: my car

Post

[QUOTE]Originally posted by 1bad180sx "]No kidding, blowing that plug at will make your engine choke on FUEL, not oil. What made you think it was oil? The black fuel burning and popping out your exhaust?

there was oil smoke coming from the rear of the engine

knave
Posts: 40
Joined: Thu Dec 19, 2002 8:54 am

Post

SRpiccalo wrote:r/t .984 crappy i know60 2.68330 6.9561/8 10.499 mph 69.511000 13.5341/4 16.101 @87.64
Bad launch, huh? Shouldn't you be able to pull close to 2.0 in an SR20-powered 240SX? A crappy launch in my MR2 turbo was 2.1.

Still, the MPH is too low for the power you *should* be making. Seems to me that it's definitely more than just bad driving. What kind of smoke are you seeing? Blue/white = oil, black = gas. Have you done leakdown, compression tests?

Edit: Don't worry about RT, it is not figured into your ET.

Mike

knave
Posts: 40
Joined: Thu Dec 19, 2002 8:54 am

Post

krisj144 wrote:Adding more mods to a car that isn't performing as it should isn't the correct way to improve. You guys might as well have been telling the guy that he needs a bigger turbo or a FMIC.
Amen brother. In this situation, the goal is to try to reduce the number of variables, not increase them. Fix the problem before adding further mods.

Mike

AznRide
Posts: 924
Joined: Sun Nov 03, 2002 5:36 pm
Car: Cars, hondas, import cars, girls, cars, girls, girls, and more beautiful girls.

Post

Damn, my old civic ran 0-60' in 2.3 seconds with TERRIBLE traction. Anyways, Oil burning, smoking...and some how you managed to bring your car to the drag strip. Nice. Next time, why don't you try to AutoX with them blown shocks too. Anyways, what code are you getting? Also, it sounds like you have a blown head gasket...I hope there is no coolant in the oil, or/and vise versa.


Return to “SR20DET Forum (rear-drive)”