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First drag in my R33


rmahnovetsky
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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 :(

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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.

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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!?!?!

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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

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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.

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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?

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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

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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.

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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:

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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?

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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.

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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.

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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.

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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!!!

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  • 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.

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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

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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 :)

Duncan. Who showed you the race line :P

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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.

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