Thread For Na's

[Super Drager]

damn man 15.4 i was expecting much quicker

Was his first time at the strip, plus his tyres were fairly bald so there's a lot of ways to improve. Video's should be up tomorrow guys.

[Super Drager]

Hey guys, heres my timeslip. I'm still waiting on the video's from my cousin.

[Wayne.]

Moral of the story, anything twin cam with multiple throttle bodys that revs hard is awesome....thread closed

[mad082]

Hey guys, results are in and i have to say sorry as you won't be too impressed!

The Corolla(88kw bigport) ran 16.8 sec with ECU problems

The Cammed SSS did a PB of 15.449 @ 88mph (2.5 60ft)

My 300ZX did 14.58 @ 95mph (2.279 60ft)

decent tyres (and launch) would see it into the 14 second bracket. bit suprised at the MPH as well. would be interesting to know what power the SSS is putting out. that may explain a few things.

[Super Drager]

decent tyres (and launch) would see it into the 14 second bracket. bit suprised at the MPH as well. would be interesting to know what power the SSS is putting out. that may explain a few things.

My mistake, he ran 15.438 as his best.

http://www.youtube.com/watch?v=aX32FSHnAkY

[Super Drager]

My runs

www.youtube.com/watch?v=LlTBgYeEHvI

www.youtube.com/watch?v=starb3bPa8w

Edited January 12, 2012 by Super Drager

[Captain Natro]

it is a tuff looking little pulsar, mph is a little low though. you'd think even if it had crap launches the terminals would still show faster than that...

[mad082]

low profile tyres would've been hurting his launches

[Captain Natro]

that's a gti'r bonnet ey?

[Super Drager]

Yeah GTiR Bonnet, he's going back after he gets his camgears installed and dialled in. I'll be back after i have NIStune aswell, on both my best runs i was on the rev limiter before the finish line so i think the car has a fair bit more to give. I'm aiming for 14.2's with the car all motor.

Edited January 14, 2012 by Super Drager

[mad082]

don't overestimate how much bouncing on the limiter will slow you down. not saying you won't get there with a tune, but you are probably only losing 1mph, maybe 2. in most cases the speed will still increase slightly even while still on the limiter.

[Super Drager]

Well, it starts hitting the limiter when i can see the time boards infront of me. On my 14.6 run i did a better 2.22 60' but i think the limiter may have engaged earlier down the track due to getting down the track quicker which may have killed my end time. Also my trap speeds ranged from 95-97mph sitting on the limiter, all with similar 60's. I have the launch nailed(well i dont think i'll get any better on the crap tyres i have), i just need a few hundred more RPM.....or to fix my 4th gear synchro lol. The first 3 taps on the limiter are soft, after that its like you are hitting a brick wall.

I'll post up some times

14.585 @ 94.9mph - 2.27 60' - 3rd gear limiter

14.659 @ 97.6mph - 2.22 60' - 3rd gear limiter

14.827 @ 95mph - 2.29 60' - selected 4th

Edited January 14, 2012 by Super Drager

[mad082]

i think you will find that you are pretty much at the limit of what you can do without more serious power upgrades. raising the rev limit won't do much unless you can have your car still make decent power at that rpm. a lot of cars power sort of falls off a cliff very quickly once you get up in the revs, so you don't see any gains. i think you will need to start grabbing 4th gear, possibly a bit earlier than you may initially thought was ideal. when i did the 14.8 in my magna that was crossing the line at about 93mph in 4th gear (was maxing out 3rd well before the line)

the other option is to go up a profile size in your tyres. this will alter your final drive ratio by a small amount, increasing your top speed by a fraction. it will affect your acceleration a little bit though (bugger all difference though).

[Super Drager]

i think you will find that you are pretty much at the limit of what you can do without more serious power upgrades. raising the rev limit won't do much unless you can have your car still make decent power at that rpm. a lot of cars power sort of falls off a cliff very quickly once you get up in the revs, so you don't see any gains. i think you will need to start grabbing 4th gear, possibly a bit earlier than you may initially thought was ideal. when i did the 14.8 in my magna that was crossing the line at about 93mph in 4th gear (was maxing out 3rd well before the line)

the other option is to go up a profile size in your tyres. this will alter your final drive ratio by a small amount, increasing your top speed by a fraction. it will affect your acceleration a little bit though (bugger all difference though).

When i get it tuned, if i raise the rev limit to 7500 would a set of exhaust side camgears benefit me? I'm going to get the gearbox oil changed to redline as it was a few months ago, didn't have crunching problems then. Not going to do anything to it that can't be transferred over to a boosted motor.

Edited January 14, 2012 by Super Drager

[MBS206]

I'm going to add in that if I were a P Plater, and I wanted to drag, I'd be looking at the EF range of XR6 falcons...

I've seen one dead stock, and it ran mid 14 out of the box... Nothing done at all...

As for the FG XR6, I honestly think they're "slow", but then again, I went and bought the FG XR6T instead... Although, even it feels slow, it's just amazing watching the speedo fly up so quickly...

[MBS206]

When i get it tuned, if i raise the rev limit to 7500 would a set of exhaust side camgears benefit me? I'm going to get the gearbox oil changed to redline as it was a few months ago, didn't have crunching problems then. Not going to do anything to it that can't be transferred over to a boosted motor.

I'd be looking at diff gears. Especially if it isn't a daily driver and is more a weekender/WSID Warrior. Go to a much shorter diff, re learn the launch on shorter diff, and use more of 4th gear. There will be many gains to be had here.

[mad082]

I'm going to add in that if I were a P Plater, and I wanted to drag, I'd be looking at the EF range of XR6 falcons...

I've seen one dead stock, and it ran mid 14 out of the box... Nothing done at all...

As for the FG XR6, I honestly think they're "slow", but then again, I went and bought the FG XR6T instead... Although, even it feels slow, it's just amazing watching the speedo fly up so quickly...

i felt the same thing when i went in a mates BA xr6t with a mild tune. doesn't have that lag that gives you the impression of speed when the boost comes on. you just put your foot down the all of a sudden the scenery is going by much faster. i also got the impression that there was waaaaaaaaaaaaaaaaay more potential in the motor. it just felt really lazy, unlike my 180sx and r33 that felt like they were working hard reasonably hard, even when mildly stock.

I'd be looking at diff gears. Especially if it isn't a daily driver and is more a weekender/WSID Warrior. Go to a much shorter diff, re learn the launch on shorter diff, and use more of 4th gear. There will be many gains to be had here.

yeah will just have to get used to getting heaps more wheelspin off the line. when i ran the magna at the drags i had low profile 15" tyres (205/50/15 vs the stock size 205/65/15) and wheelspin was shocking. even when grabbing second gear. that is part of the reason why i was crossing the line well into 4th gear. speedo was showing about 170kmh, but trap speed was only around 93mph

[Super Drager]

I'm going to add in that if I were a P Plater, and I wanted to drag, I'd be looking at the EF range of XR6 falcons...

I've seen one dead stock, and it ran mid 14 out of the box... Nothing done at all...

As for the FG XR6, I honestly think they're "slow", but then again, I went and bought the FG XR6T instead... Although, even it feels slow, it's just amazing watching the speedo fly up so quickly...

That's funny because my mates EF XR6 with a fair bit of work done does 15's lol, also a stock FG that comes to WSID does 14.8 sec out of the box. Not doing diff changes or anything like that, i'm going to look on ebay for some 2nd hand Mickey thompson ET streets and get my NIStune done....

Edited January 15, 2012 by Super Drager

[mad082]

for a stock EF xr6 to get into the 14's it would need super sticky tyres. my guess is that it wasn't stock. having said that, if it had had a headgasket replaced in the past and had the head shaved (which usually happens) then it would have a slight compression increase resulting in more power. my theory is that that's why some skylines seem to be able to make 200kw on mild mods easier than others.

[MBS206]

i felt the same thing when i went in a mates BA xr6t with a mild tune. doesn't have that lag that gives you the impression of speed when the boost comes on. you just put your foot down the all of a sudden the scenery is going by much faster. i also got the impression that there was waaaaaaaaaaaaaaaaay more potential in the motor. it just felt really lazy, unlike my 180sx and r33 that felt like they were working hard reasonably hard, even when mildly stock.

yeah will just have to get used to getting heaps more wheelspin off the line. when i ran the magna at the drags i had low profile 15" tyres (205/50/15 vs the stock size 205/65/15) and wheelspin was shocking. even when grabbing second gear. that is part of the reason why i was crossing the line well into 4th gear. speedo was showing about 170kmh, but trap speed was only around 93mph

Yep, just confirmed, BA/BF XR6 is SLOWWWWWWWWWWWWWWWWWW compared to the FG XR6T... LOL

And yeah, they do feel like they've got a lot more to give, the FG spools up even sooner then that BA/BF by using an even smaller front!

I've been doing ALOT of reading on the XR6T, and some very simple things net a BIG increase in 1/4 mile time, and that's the removal of torque management, and getting rid of the flat torque curve they have...

That and on the FG turn the OverBoost (Setup by ford for use on the roll for upto 5 seconds to aid overtaking) on all the time... (Adds 10% more boost)

But, back to the NAs... Big Sticky tyres and a HUGE clutch dump with a good LSD/locked diff will get you off the line, but, I'd be running drag radials if I was you, gives a bit of flex and will take *some* stress off the driveline...

I tried to find the place I was reading about the EF falcon time, but it was so long ago I can't find the thread on another forum