Out for a drive - Meremere dragway 27.05.2007


The Strip
I spun up the 60' area bad prep perhaps?


I can lighten the load by 100kgs, better tyre pressure, better launch - should be low 15's high 14's.

On launchs I spun the first 60' it seemed

Best Run

KILLER
¼ 15.795 12.831
r/t .413 .390
Km 140.53 188.70
60’ 2.502 1.786
1/8 10.230 8.461
Km 114.29 136.28

(No order - total 14 runs)
¼ 15.922(loss) 14.025
¼ 15.974(win) 17.022 (Skyline 2 or 25)
¼ 15.975 -
¼ 15.859(win) They launched to early
¼ 15.889(win) 18.320
¼ 15.936(loss) 15.676
¼ 15.839(win) 16.383 (Corolla I think)
¼ 15.869(loss) 15.830 (Audi A4)
¼ 15.950(win) 17.582 (Levin supercharged)
¼ 16.030(win) 16.207
¼ 15.969(win) 21.852

You Tube Videos

INCABIN Video - 16sec runs - hear it hit the limiter

Best Run - 15.795 @ 140


CLICK ON PICS FOR CARS DYO TIME - SIMILAR TIMES TO MINE-ish

 

 

You have to start running better times if you want a name like "killerVQ30DE"

 

M'kay so the only reply to my post is that

First time doing 1/4 mile, its a start, was carrying way to much weight and launched badly with to much wheel spin.. going again in July for a Nissan day so can only improve

 

Ok, I finally got around to this thread, lol.

That 60' is brutal. It could be bad prep for the track, but also your car, or a combo of the two. What wheel/ tire combo are you running? Also what pressure did you run on the tires?

Also, you say you were "carrying to much weight". Was this EXTRA weight? (like stuff in the trunk, etc...).

 

Yes 60' was the killer (pun semi intended) .. spun 1st and 2nd.. got my shocks tested today, fronts are okay, back are gone. So it looks like when I launch it sinks back on the rear shocks and doesn't rebound quick enough so lifts up the front and creates extra wheel spin

Extra weight was Electric front seats, back seats, spare tyre, 3/4 tank(45litres).. so if I elimiate all the above bar the drivers seat that should help.

Tyre pressure in the fronts was 30psi, 35 at the back

 

drop the tire psi in the front

 

Down to 28psi you reckon? Do you think that will compensate for back shocks? or just for traction..

Does you drop resistor mod help? I haven't been feeling lucky enough to try disconnecting mine .. worried about too harder shift. I have a trans cooler too

 

hey dude ! i saw all the vids and stuff, good show ! when i ran street tyres i dropped them down to 23-25 psi i think. 1st time is tough, next race in july you will do better !

 

28 is nothing, lol, I'd go down to 22psi. The extra weight isnt really extra meng, you car comes with that stuff. Now if you wish to do weight savings for the next time thats something else. Extra implies (to me) things like a sound system, bling bling wheels, etc...

Also if you have a tranny cooler and you're tranny is in good working condition, there's no problem at all disconnecting the DR for some track runs man.

The suspension, if you dont have the means to change out your shocks before next time, you could try placing those rubber coil booster things bet'n the coils on the rear springs. They are sold in parts store and they'll help to minimize the amount of squatting on those springs . ...Thats the good thing about my AGXs, I just turned them up to full stiff and done, no squat .

With DR disconnected, less squatting in the back, and better tire pressure, you should do alot better next time. Best of luck!

 

What are you going to remove to take 220lbs (100kg) out of your car? That's alot of weight to remove from a street car. It seems like your car just isn't making the power it should be. Didn't you post a dyno a while back that only came out to being like 140whp after the kw to hp conversion?

 

Yeah fooling myself abit there.. but full tank, spare, etc with my times reducing that will all help.

I got 160HP (120kws), I'm pretty sure that the lower power figure was due to the guy dynoing with my auto traction control set to SNOW.. I don't think SNOW lets the car dump power above 5000 (factory mevi) to prevent slip in the snow. He used the SNOW switch to try and prevent kickdown while pulling.

I spin the 60' and I think thats where I'll make the time up, I don't think its a power issue

 

The reason I think you've got a power issue because your traps are pretty low. What was the weather like? If it was extremely bad conditions then maybe that could account for it, but 86-87mph in the 1/4 is not what normal 4th gen autos run in normal conditions. Perhaps if the DA was extremely high (like on the order of 3000-4000' DA).

 

I know what your saying about traps speeds but I think that is because I'm only getting up to speed once I stop spinning 1st & 2nd in the 60'. I'll try getting new shocks as the rears have gone, theory being that when I launch it sinks back on the rears and never rebounds enough so the front lifts and I get no traction. I'll go back to the strip in July for a Nissan day so will have to see then.

 

sigh, lol. Keep us posted on the progress

 

killer you sure your knock sensor is good ? and you running the right platinum spark plugs, etc ? hey neal its actually winter here and the track he is racing on is just a hair above sea level. its actually the lowest track to race on here in NZ. I also know that the track is rarely prepped, a downside to NZ drag racing, you have to earn your 60's here, its brutal.

you and phats have got to figure out a cheap lightweight wheel to put up front. im not sure the mazda milliena wheel exist here due to its a 95 model and not sure we got any of those here called a mazda eunos or something like that. ive looked but no luck. so no sneaking a cheap rim or two that way.

i wonder what the batman rx7 wheel weighs, its a 16x8 i think and would be a bit more pricey but i think they are light, will have to dig for some info.

somehow we got to get you guys NZ maximas running hard ! come nissan drag day we got to take down the other n/a nissans at the meet. remember my little N15 pulsar vzr ran 15.3@91mph stock. if we could get your cars down a few more 10ths, you should handle the pulsars, primeras, etc.

again i will look around on those rx7 wheels, second hand we might be talking 300-400 dollars for 4 with tyres, if you and phats split that and if they are heaps lighter it would be money well spent. i know phats is running big 17 inch advanti wheels, but not sure what you running.

i have some S14 Silvia wheels you can borrow in july if need be but they are 40 lbs wheel/tyre. not to light !

what offset are we about a 40-42 ? let me know about the plugs, you may be using crap ones. we can have some sent over from the states cheap.

 

What a bummer not entirely sure where the problem lies.. KS doesn't throw code. Wheels are factory 15s with Firehawk tyres. Plugs should be platnium NGK's.. will pull the sparks on the weekend and check them out

 

is it still safe to drive home on 22 psi street tires? I can't seem to think of a place where I can plug in a tire inflater in the parking lot of a racetrack, haha

 

Most race tracks have air available at the track for just that purpose... most, but not all.

 

I have an air compressor that I plug into my cig lighter that I got for 10 bucks. When I run at the track I normally try tire pressures between 20 and 15 psi.

To the o/p, I think your biggest problem is you are missing power. You are traping around what I used to trap in my 2nd gen with the VG30 which I moded a little bit but is was still only rated at 150hp at the crank. Have you ever done a compression check on your engine? Also if you have another friend with a maxima, try switching the knock sensor. If you find your missing power, I am sure your ET's will drop and your traps will go up.