Jump to content
SAU Community

Recommended Posts

Well I've finally done it! I've gone down to the drag strip and took my R33 for a run. With no mods, well except for a K&N panel filter and a heavy duty clutch I managed to get a 14.9 on my first go. Searching on his forum looks like most stock skylines get between low 15s and high 14s. So atleast I know my car is doing OK. Timeslip can be found here

http://www.users.bigpond.net.au/rafsland/DSC01425.jpg

Now that I have the BUG to get a better time I looking to you guys for some advice. Before I start increasing my horse power I would like to be able to launch as good as I can. So what rpm do you guys find that gives you the best times and what about types pressure?

My first launch I launched with about 3500 rpm. My second launch I used 5000 rpm and my time was a little worse 15.06. The track at willow bank is so grippy I thought more rpms would be a good idea :(

Link to comment
https://www.sau.com.au/forums/topic/45119-first-drag-in-my-r33/
Share on other sites

That 60' isn't *too* bad at 2.269 .. i mean even if you got a really good launch you'd could get it down to a flat 2.0. Even if you did theoretically thats really only going to knock 0.269 off your final time, and you would still be mid 14's there really. So probably that 3500 to launch at is not too bad to be honest in your car.

So really it points to just the rest of the power not being there in your car after that initial 60' - combined with slow gearchanges or something like that as the MPH is a little low.

So really, just some modifications if you ask me will push you into lower 14sec territory and beyond.

Thanks for the reply! There is another "test and tune" at willowbank in a couple of weeks. I would like to improve on my time, hopefully get it into the mid 14's .. Gee first time ever to willowbank and Im hooked, it's worse then nicotine ;)

Your saying my mph is a little low :( for a stock R33. My gear changes were as quick as I could possibly move my hands and I reved just before limiter, 6999. Also using BP ultimate - oh and I just changed the oil to castrol 5/30. What MPH should I be getting?

At the moment I just want to concentrate on getting my stock R33 optimised - then work on that!!

Has anyone found advancing the timming to improve the MPH? Maybe my timming is out a little!?!?!

Even if you did theoretically thats really only going to knock 0.269 off your final time

Have you been drinking?

Well done on not being one of the talkers and actually getting out there!!! Regarding the above comment, taking 0.269sec off of your 60 foot time will have the effect of taking more like 0.5 - 0.6 secs off of your ET. Having said that, it's a great start. There are people on this forum that are running low 12's that because of a 2.2 60' time, can't take advantage of their extra horsepower.

Try different things to get the most out of your car. Try running 20psi in your rear tyres to aid in the launch, change gears just before 7krpm and have fun.

Let us know how you go and good luck.

Adrian

Have you been drinking?

probably...think i was mixing up something i was going to say and what i did say :-s oops

if you get past the first 60' quicker, you will be going quicker at that point, which should mean you get a higher MPH and better time at the end. it will definitely be more than 0.269 :)

but anyhow.. test and tune is also wednesday nights also. Few of the SAU regulars will be there tomorrow night running (inc me).. Have only run a few times in VIC (and didn't do spectacularly) so will be interesting to see how i go.

Is the "test and tune" busy on Wednesday nights? Last saturday night it took about 1.5 hours to get a run. :P

Next time I go down the track I'll play with the tyre pressure. I'll give the 20psi a go!

Do you think it is possible to get a flat 2 60ft with a stock skyline? Has it been done before?

Yeah i think a flat 2 would be possible with the correct setup and a good launch.

I was also going to point out what 2rismo picked up on. Up to the 60ft mark is where you'll make or break so to speak. My advice would be to work on your starts. That's where you can pick up some time if you know what you're doing.

Scott

You got the bug just like me :(

Your mph might be a little low but I wouldnt expect it to rise very much until you get an exhaust. The 60ft is good for a first time.

When I had a cat back and pod I ran 14.3@98mph with a 2.4 60ft.

0.269sec off of your 60 foot time will have the effect of taking more like 0.5 - 0.6 secs off of your ET

That means my car is good for 13.2-13.3 with a decent launch... I really gotta practice my launches.

taking 0.269sec off of your 60 foot time will have the effect of taking more like 0.5 - 0.6 secs off of your ET.

The basic rule of thumb is, every tenth gained over the 60' is two tenths off the ET. So as a random example... say someone was to run a 12.357 ET on a 2.119 60', and then they managed to drop their 60' to a 1.900, they "should" get an 11.919 ET. And then they would be very happy :(

There are people on this forum that are running low 12's that because of a 2.2 60' time, can't take advantage of their extra horsepower.

Are there? Who? :cheers:

When I had a cat back and pod I ran 14.3@98mph with a 2.4 60ft.  

.

So your saying just an exhaust from the cat back and some decent airflow will drop off ~ 0.5- 0.7 secs?... Even though your 60ft was not awesome. What type of exhaust did you get?

Yep. Exhaust mods are a turbos best friend :rant:

The extra air flow will see the boost rise by a few psi forcing your mph to go up and ET to come down.

Mine is a Jasma 3" and was on the car when it arrived from Japan. I added a 3" dump/front pipe and @ 10psi ran 13.8@101 with a 2.2 60ft. Since then I have added high flow cat and chip and I'm hunting low 13s... I just need to launch it properly.

Thanks for the input guys. it has been helpful and I really want an exhaust now!!! :D

From the research I sifted from the crap and the real 1/4 miles times I have come up with this. I'm trying to keep it real so I can have fun and challenge myself every step of the way through my mods. how does this sound guys?

A stock R33 Skyline GTS-T (when I say stock I mean absolutely nothing done to it - not even an airfilter ) with an experienced driver should get at best down the 1/4 mile a 14.8 - 14.5!!! I think the best I have read is a 14.7...

Give this car a 3 inch catback exhaust and a 14.3 with 2.4 60ft is possible, so maybe a flat 14.0 with an awesome 60ft is possible

Pump up the power with a dump pipe and 10psi and a 13.8 is possible!

Anything extra is into the sub 13 and beyond.. Too many combinations to list!!

All this talk is making me want to go the the drags and see what times I can get!

Another thing that is bothering me, has anyone broken anything going down the quarter with your skyline? Assuming you have less than 250kw at the wheels.

Another thing that is bothering me, has anyone broken anything going down the quarter with your skyline? Assuming you have less than 250kw at the wheels.
I've had around 30+ runs over the last 7mths all around 14.1-14.8sec and never broken a thing. Drive in, run, drive home and live another day :D

I have however had quite a few Holdens destroy themselves right beside me on the first run of the nite hehehe.

I've had around 30+ runs over the last 7mths all around 14.1-14.8sec and never broken a thing. Drive in, run, drive home and live another day :D

I have however had quite a few Holdens destroy themselves right beside me on the first run of the nite hehehe.

hehehe Thats what I like to hear :D ....

When I was talking to the guy I was racing "commodore SS " he warned me to be careful about breaking a diff or somthing on the drive chain as he had done before!! But I was 99.9% sure I had nothing to worry about - after all, the skyline is the upgrade KING it was built for torture :) 30 runs down the track confirms it for me!!!

  • 2 weeks later...

I went down the track again last night in an attempt to beat my last time. Well I succesfully did but cheated a little. Instead of adjusting the tyre pressure and changing my launch revs to get a better time I raised my boost by ~2 psi. I did this by taking of the hose that goes to the solenoid and plugged in a little rod with a hole in it. Got my friends boost gauge and drilled out the hole until I reached ~9psi. Pretty dodgy but it worked. Anyway I managed to get a 1/4 mile time of 14.546 at 94.98 mph and a 60ft time of 2.146.

here is the link http://www.users.bigpond.net.au/rafsland/DSC01426.jpg

Im pretty happy since I beat every stat from my last run without spending a cent. I hope if I add another 2psi I can drop another 0.4s which will give me 14.1 :cheers: without spending a cent.

From the research I sifted from the crap and the real 1/4 miles times I have come up with this. I'm trying to keep it real so I can have fun and challenge myself every step of the way through my mods. how does this sound guys?

A stock R33 Skyline GTS-T (when I say stock I mean absolutely nothing done to it - not even an airfilter ) with an experienced driver should get at best down the 1/4 mile a 14.8 - 14.5!!! I think the best I have read is a 14.7...

I managed to hustle my stock (yes really) gtst in 14.2....but I was running sticky r type tyres so that may be the difference. Unfortuntely the timing at wsid was not working properly that night so they didn't give me a 60' time :P

I managed to hustle my stock (yes really) gtst in 14.2....

I looked at your profile and I noticed you were running 9psi. So I don't think you can say your car is stock - your car was modified slightly. In my case unless my driving was better I was able to reduce my quarter mile by 0.4secs. So for the guys out there looking for the fastest real possible time in a factory condition i.e stock skyline will be mislead. But a 14.2 with only 9psi is still awesome. That time was beating skylines I saw last night that had 300 horses at the wheels - well done.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • I had 3 counts over the last couple of weeks once where i got stranded at a jdm paint yard booking in some work. 2nd time was moving the car into the drive way for the inspection and the 3rd was during the inspection for the co2 leak test. Fix: 1st, car off for a hour and half disconnected battery 10mins 4th try car started 2nd, 5th try started 3rd, countless time starting disconnected battery dude was under the hood listening to the starting sequence fuel pump ect.   
    • This. As for your options - I suggest remote mounting the Nissan sensor further away on a length of steel tube. That tube to have a loop in it to handle vibration, etc etc. You will need to either put a tee and a bleed fitting near the sensor, or crack the fitting at the sensor to bleed it full of oil when you first set it up, otherwise you won't get the line filled. But this is a small problem. Just needs enough access to get it done.
    • The time is always correct. Only the date is wrong. It currently thinks it is January 19. Tomorrow it will say it is January 20. The date and time are ( should be ! ) retrieved from the GPS navigation system.
    • Buy yourself a set of easy outs. See if they will get a good bite in and unthread it.   Very very lucky the whole sender didn't let go while on the track and cost you a motor!
    • Well GTSBoy, prepare yourself further. I did a track day with 1/2 a day prep on Friday, inpromptu. The good news is that I got home, and didn't drive the car into a wall. Everything seemed mostly okay. The car was even a little faster than it was last time. I also got to get some good datalog data too. I also noticed a tiny bit of knock which was (luckily?) recorded. All I know is the knock sensors got recalibrated.... and are notorious for false knock. So I don't know if they are too sensitive, not sensitive enough... or some other third option. But I reduced timing anyway. It wasn't every pull through the session either. Think along the lines of -1 degree of timing for say, three instances while at the top of 4th in a 20 minute all-hot-lap session. Unfortunately at the end of session 2... I noticed a little oil. I borrowed some jack stands and a jack and took a look under there, but as is often the case, messing around with it kinda half cleaned it up, it was not conclusive where it was coming from. I decided to give it another go and see how it was. The amount of oil was maybe one/two small drops. I did another 20 minute session and car went well, and I was just starting to get into it and not be terrified of driving on track. I pulled over and checked in the pits and saw this: This is where I called it, packed up and went home as I live ~20 min from the track with a VERY VERY CLOSE EYE on Oil Pressure on the way home. The volume wasn't much but you never know. I checked it today when I had my own space/tools/time to find out what was going on, wanted to clean it up, run the car and see if any of the fittings from around the oil filter were causing it. I have like.. 5 fittings there, so I suspected one was (hopefully?) the culprit. It became immediately apparent as soon as I looked around more closely. 795d266d-a034-4b8c-89c9-d83860f5d00a.mp4       This is the R34 GTT oil sender connected via an adapter to an oil cooler block I have installed which runs AN lines to my cooler (and back). There's also an oil temp sensor on top.  Just after that video, I attempted to unthread the sensor to see if it's loose/worn and it disintegrated in my hand. So yes. I am glad I noticed that oil because it would appear that complete and utter catastrophic engine failure was about 1 second of engine runtime away. I did try to drill the fitting out, and only succeeded in drilling the middle hole much larger and now there's a... smooth hole in there with what looks like a damn sleeve still incredibly tight in there. Not really sure how to proceed from here. My options: 1) Find someone who can remove the stuck fitting, and use a steel adapter so it won't fatigue? (Female BSPT for the R34 sender to 1/8NPT male - HARD to find). IF it isn't possible to remove - Buy a new block ($320) and have someone tap a new 1/8NPT in the top of it ($????) and hope the steel adapter works better. 2) Buy a new block and give up on the OEM pressure sender for the dash entirely, and use the supplied 1/8 NPT for the oil temp sender. Having the oil pressure read 0 in the dash with the warning lamp will give me a lot of anxiety driving around. I do have the actual GM sensor/sender working, but it needs OBD2 as a gauge. If I'm datalogging I don't actually have a readout of what the gauge is currently displaying. 3) Other? Find a new location for the OEM sender? Though I don't know of anywhere that will work. I also don't know if a steel adapter is actually functionally smart here. It's clearly leveraged itself through vibration of the motor and snapped in half. This doesn't seem like a setup a smart person would replicate given the weight of the OEM sender. Still pretty happy being lucky for once and seeing this at the absolute last moment before bye bye motor in a big way, even if an adapter is apparently 6 weeks+ delivery and I have no way to free the current stuck/potentially destroyed threads in the current oil block.
×
×
  • Create New...