Century Sprint timing for 4AT?
08-14-2006, 07:03 AM
#52
phor bo or som tum?
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Originally Posted by coupe07
mr kenji_jim was running on 16inchers. He oso failed to get less than 10secs......
Again, flyer can verify..
i tink there is this serious myth abt the re-mapping. It doesnt release enormous horsepower. U must have done the full exhaust system to realise the full potential.
Again, flyer can verify..
i tink there is this serious myth abt the re-mapping. It doesnt release enormous horsepower. U must have done the full exhaust system to realise the full potential.
he running on 16" but his 6 exhausts plus 2 "wings" makes up for the weight.
LOL!
08-14-2006, 10:19 AM
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Originally Posted by sqflyer
Are you talking about 4ATs? If so, I've never seen a stock or even modded NA 4AT hit below 9secs. Seems that all the 4ATs that are doing 10 secs are all 'highly unlikely'. So if anyone has the skill, please teach us how it's done. I wanna learn.
From this thread, i already see one big mistake. "Passenger time my run"
And ditch the BBS (brake buay stop) rims.
Wah! 10 secs AT 8. Toyota altis seems faster.
Straight lines doesn't matter much. Its what the driver can make a car do and not the car that drives the driver.
08-14-2006, 12:09 PM
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INXS: Well, first gotta meet up at one of our meets first. Haven't been able to meet you yet... ha ha.
LsBlack: Boss... you free or not first? Anyway, Wednesday is not good for me. Ex-girlfriend's birthday. How about Thursday?
BlackEight: I believe a TC'ed 4AT can hit ard 6 to 7 secs and a ECU remapped final drive 4AT can do 9+ secs. I don't think a ECU/FD mod can drop 2 secs from 10+ to 8+ secs for such a short sprint.
PitchBlaC: Well said.
rx8-8888: some have tested it and it's quite good, but so far no definitive testing for hard results.
LsBlack: Boss... you free or not first? Anyway, Wednesday is not good for me. Ex-girlfriend's birthday. How about Thursday?
BlackEight: I believe a TC'ed 4AT can hit ard 6 to 7 secs and a ECU remapped final drive 4AT can do 9+ secs. I don't think a ECU/FD mod can drop 2 secs from 10+ to 8+ secs for such a short sprint.
PitchBlaC: Well said.
rx8-8888: some have tested it and it's quite good, but so far no definitive testing for hard results.
08-14-2006, 12:17 PM
#58
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Hmmm... Id love to test it out with/in your presence. These two weeks beh sai.. ICT 14th - 26th. Buy you ice cream .... haha.. Arrange after tt?
Meanwhile, any AT8s here wanna input anything related to this discussion on How and WHAT has been possible for your rides best achievement?
Meanwhile, any AT8s here wanna input anything related to this discussion on How and WHAT has been possible for your rides best achievement?
08-14-2006, 02:37 PM
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Silver_Z: Same Gtech Pro used on all runs. Slight inaccuracies possibly due to assumed standard weight (used the weight of my car when I weighed it last year + half tank of gas + average driver weight), default suspension dip, rpm calibration, etc. But the inaccuracies are applied to all the vehicles tested.
CoupeM: Anytime we can meet at the next post meet-up event. It'll be my pleasure.
Emperor: Yup, all the tips for better sprint times are excellent. However, still none of the NA 4ATs tested has gone under 9 secs and only 2 have broken just under 10 secs (9.99 sec).
INXS: Stiffer shocks help to put the rubber on the road as do lower tire pressures assuming rims/tires remain unchanged.
theboy: Don't get me wrong, it's not that I don't believe your timings or that I'm out to prove you wrong or anything. I never want to stand in the way of truth. I just want to understand how you can get under 7 secs on your 4AT which is similar to a Z's time. youtube video is useless because we don't know what mods they are running. What do you use to measure your timings? Would be good if you could get a Gtech to measure your runs and post the PASS files. If you are using some kind of stopwatch, can you try measuring with a different one? I remember I used to run my 2.4kms under 11 mins until I realised the stopwatch I used was counting slower because the battery was low.
I don't know if smaller rims will make a huge impact on the times. Smaller rims usually also mean narrower tires. Might help a bit on the 4ATs because they don't usually wheelspin at launch, but 6MTs will definitely fishtail on the launch with less grip which results in slower times.
CoupeM: Anytime we can meet at the next post meet-up event. It'll be my pleasure.
Emperor: Yup, all the tips for better sprint times are excellent. However, still none of the NA 4ATs tested has gone under 9 secs and only 2 have broken just under 10 secs (9.99 sec).
INXS: Stiffer shocks help to put the rubber on the road as do lower tire pressures assuming rims/tires remain unchanged.
theboy: Don't get me wrong, it's not that I don't believe your timings or that I'm out to prove you wrong or anything. I never want to stand in the way of truth. I just want to understand how you can get under 7 secs on your 4AT which is similar to a Z's time. youtube video is useless because we don't know what mods they are running. What do you use to measure your timings? Would be good if you could get a Gtech to measure your runs and post the PASS files. If you are using some kind of stopwatch, can you try measuring with a different one? I remember I used to run my 2.4kms under 11 mins until I realised the stopwatch I used was counting slower because the battery was low.
I don't know if smaller rims will make a huge impact on the times. Smaller rims usually also mean narrower tires. Might help a bit on the 4ATs because they don't usually wheelspin at launch, but 6MTs will definitely fishtail on the launch with less grip which results in slower times.
Last edited by sqflyer; 08-14-2006 at 02:46 PM.
08-14-2006, 04:02 PM
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Originally Posted by sqflyer
Silver_Z: Same Gtech Pro used on all runs. Slight inaccuracies possibly due to assumed standard weight (used the weight of my car when I weighed it last year + half tank of gas + average driver weight), default suspension dip, rpm calibration, etc. But the inaccuracies are applied to all the vehicles tested.
CoupeM: Anytime we can meet at the next post meet-up event. It'll be my pleasure.
Emperor: Yup, all the tips for better sprint times are excellent. However, still none of the NA 4ATs tested has gone under 9 secs and only 2 have broken just under 10 secs (9.99 sec).
INXS: Stiffer shocks help to put the rubber on the road as do lower tire pressures assuming rims/tires remain unchanged.
theboy: Don't get me wrong, it's not that I don't believe your timings or that I'm out to prove you wrong or anything. I never want to stand in the way of truth. I just want to understand how you can get under 7 secs on your 4AT which is similar to a Z's time. youtube video is useless because we don't know what mods they are running. What do you use to measure your timings? Would be good if you could get a Gtech to measure your runs and post the PASS files. If you are using some kind of stopwatch, can you try measuring with a different one? I remember I used to run my 2.4kms under 11 mins until I realised the stopwatch I used was counting slower because the battery was low.
I don't know if smaller rims will make a huge impact on the times. Smaller rims usually also mean narrower tires. Might help a bit on the 4ATs because they don't usually wheelspin at launch, but 6MTs will definitely fishtail on the launch with less grip which results in slower times.
CoupeM: Anytime we can meet at the next post meet-up event. It'll be my pleasure.
Emperor: Yup, all the tips for better sprint times are excellent. However, still none of the NA 4ATs tested has gone under 9 secs and only 2 have broken just under 10 secs (9.99 sec).
INXS: Stiffer shocks help to put the rubber on the road as do lower tire pressures assuming rims/tires remain unchanged.
theboy: Don't get me wrong, it's not that I don't believe your timings or that I'm out to prove you wrong or anything. I never want to stand in the way of truth. I just want to understand how you can get under 7 secs on your 4AT which is similar to a Z's time. youtube video is useless because we don't know what mods they are running. What do you use to measure your timings? Would be good if you could get a Gtech to measure your runs and post the PASS files. If you are using some kind of stopwatch, can you try measuring with a different one? I remember I used to run my 2.4kms under 11 mins until I realised the stopwatch I used was counting slower because the battery was low.
I don't know if smaller rims will make a huge impact on the times. Smaller rims usually also mean narrower tires. Might help a bit on the 4ATs because they don't usually wheelspin at launch, but 6MTs will definitely fishtail on the launch with less grip which results in slower times.
08-14-2006, 08:59 PM
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Originally Posted by sqflyer
Silver_Z: Same Gtech Pro used on all runs. Slight inaccuracies possibly due to assumed standard weight (used the weight of my car when I weighed it last year + half tank of gas + average driver weight), default suspension dip, rpm calibration, etc. But the inaccuracies are applied to all the vehicles tested.
08-14-2006, 09:06 PM
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I tend to agree with sqflyer and coupe07. Over the past few months I've been to quite a bit of mini-gatherings at tuas, yishun and jurong port where a number of different makes do century sprint 'mini-races' and timings. believe it or not, even the Z and WRX do not have the 0-100s that is advertised in brochures. The Z for e.g. is definitely above 8s closer to 9 actually. Similarly, the wrx (full exhos mod) is mid 7s.
My 10+s timings is with stock intake and autoexe exhos. I haven't timed since i installed final drive and stuff. but to answer theboy's qn:
(at that time in May)
1. Engine oil: RMagic
2. rim size and tires: 18", AD07 (note that even i felt a diff between 16 & 18" at change)
3. Fuel using, how many ron: SPC 98
4. Ecu remaped: No. As Coupe07 says, ECU is NOT for better launch times rather, better temp management, smoother and smarter shifting
If the RX8 AT NA really can do 6-7s, i think you can start taking on the RSYC gallardo races - may lose but will not sia sway yourself liao
My 10+s timings is with stock intake and autoexe exhos. I haven't timed since i installed final drive and stuff. but to answer theboy's qn:
(at that time in May)
1. Engine oil: RMagic
2. rim size and tires: 18", AD07 (note that even i felt a diff between 16 & 18" at change)
3. Fuel using, how many ron: SPC 98
4. Ecu remaped: No. As Coupe07 says, ECU is NOT for better launch times rather, better temp management, smoother and smarter shifting
If the RX8 AT NA really can do 6-7s, i think you can start taking on the RSYC gallardo races - may lose but will not sia sway yourself liao
Last edited by gfoo; 08-15-2006 at 07:20 AM.
08-14-2006, 10:44 PM
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The manufacturers figures of 0-100 are mostly unreliable. Mostly too optimistic. All manufacturers do that from fiat to ferrari. They may do timings a thousand times and give the best readings or even correct it to compensate for variables. So if they got 7.1, they correct it to 6.9 due to variables.
It also depends on testing conditions. Cool and dry weather naturally gives better timings. Tailwind vs headwind. Lab testing and not tested on road/track. Calculated figures. etc.
Proper runs on open roads should include runs in both directions. There may be inclines / declines not visible to the naked eye.
And it actually wrong to just floor it all the way; proper way is somewhere 1/2 to 3/4 then pedal to metal. Plus there must be some wheelspin to get good timings.
It also depends on testing conditions. Cool and dry weather naturally gives better timings. Tailwind vs headwind. Lab testing and not tested on road/track. Calculated figures. etc.
Proper runs on open roads should include runs in both directions. There may be inclines / declines not visible to the naked eye.
And it actually wrong to just floor it all the way; proper way is somewhere 1/2 to 3/4 then pedal to metal. Plus there must be some wheelspin to get good timings.
08-14-2006, 11:42 PM
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Originally Posted by Emperor
The manufacturers figures of 0-100 are mostly unreliable. Mostly too optimistic. All manufacturers do that from fiat to ferrari. They may do timings a thousand times and give the best readings or even correct it to compensate for variables. So if they got 7.1, they correct it to 6.9 due to variables.
It also depends on testing conditions. Cool and dry weather naturally gives better timings. Tailwind vs headwind. Lab testing and not tested on road/track. Calculated figures. etc.
Proper runs on open roads should include runs in both directions. There may be inclines / declines not visible to the naked eye.
And it actually wrong to just floor it all the way; proper way is somewhere 1/2 to 3/4 then pedal to metal. Plus there must be some wheelspin to get good timings.
It also depends on testing conditions. Cool and dry weather naturally gives better timings. Tailwind vs headwind. Lab testing and not tested on road/track. Calculated figures. etc.
Proper runs on open roads should include runs in both directions. There may be inclines / declines not visible to the naked eye.
And it actually wrong to just floor it all the way; proper way is somewhere 1/2 to 3/4 then pedal to metal. Plus there must be some wheelspin to get good timings.
Can't remember which program I watched, the 6MT 8 can match the time if the current E46 M3 as well on the track, so which is which actually??
A relatively slow M3 or a relatively fast 8?? 
08-15-2006, 12:06 AM
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Originally Posted by sqflyer
Silver_Z: Same Gtech Pro used on all runs. Slight inaccuracies possibly due to assumed standard weight (used the weight of my car when I weighed it last year + half tank of gas + average driver weight), default suspension dip, rpm calibration, etc. But the inaccuracies are applied to all the vehicles tested.
CoupeM: Anytime we can meet at the next post meet-up event. It'll be my pleasure.
Emperor: Yup, all the tips for better sprint times are excellent. However, still none of the NA 4ATs tested has gone under 9 secs and only 2 have broken just under 10 secs (9.99 sec).
INXS: Stiffer shocks help to put the rubber on the road as do lower tire pressures assuming rims/tires remain unchanged.
theboy: Don't get me wrong, it's not that I don't believe your timings or that I'm out to prove you wrong or anything. I never want to stand in the way of truth. I just want to understand how you can get under 7 secs on your 4AT which is similar to a Z's time. youtube video is useless because we don't know what mods they are running. What do you use to measure your timings? Would be good if you could get a Gtech to measure your runs and post the PASS files. If you are using some kind of stopwatch, can you try measuring with a different one? I remember I used to run my 2.4kms under 11 mins until I realised the stopwatch I used was counting slower because the battery was low.
I don't know if smaller rims will make a huge impact on the times. Smaller rims usually also mean narrower tires. Might help a bit on the 4ATs because they don't usually wheelspin at launch, but 6MTs will definitely fishtail on the launch with less grip which results in slower times.
CoupeM: Anytime we can meet at the next post meet-up event. It'll be my pleasure.
Emperor: Yup, all the tips for better sprint times are excellent. However, still none of the NA 4ATs tested has gone under 9 secs and only 2 have broken just under 10 secs (9.99 sec).
INXS: Stiffer shocks help to put the rubber on the road as do lower tire pressures assuming rims/tires remain unchanged.
theboy: Don't get me wrong, it's not that I don't believe your timings or that I'm out to prove you wrong or anything. I never want to stand in the way of truth. I just want to understand how you can get under 7 secs on your 4AT which is similar to a Z's time. youtube video is useless because we don't know what mods they are running. What do you use to measure your timings? Would be good if you could get a Gtech to measure your runs and post the PASS files. If you are using some kind of stopwatch, can you try measuring with a different one? I remember I used to run my 2.4kms under 11 mins until I realised the stopwatch I used was counting slower because the battery was low.
I don't know if smaller rims will make a huge impact on the times. Smaller rims usually also mean narrower tires. Might help a bit on the 4ATs because they don't usually wheelspin at launch, but 6MTs will definitely fishtail on the launch with less grip which results in slower times.
Wahahahahah...11 & its been counted slower..Tats a good 1
Hey
Happy Birthday Mr Flyer's Ex-Girlfren... 
To make things easier, anyday is fine...c wat the rest say
08-15-2006, 01:42 AM
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Originally Posted by ngkenny
the record holder has spoken.....hehe....a little yaya....but i like
Bro.., coupe 07 ve mistaken la
I am the record holder, not for timing but sound effect
But ...no explanation needed here rite
just feel so shiok able to yaya papaya
08-15-2006, 02:58 AM
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Silver_Z: First let me clarify that the 6MTs managed 6+secs (close to 7 secs) and not "sub 6secs". It is NOT EASY to break under 6 secs for stock NA car. Next, to answer your question. Yes, I believed I already stated that the Gtech Pro was used on ALL RUNS, meaning all 4ATs and 6MTs. The 4ATs consistently recorded 10+ sec timings and the 6MTs between 6+secs to 8+secs (variation due to driver skill and launch techniques). While I agree that any device can fail or give faulty readings, I do not believe this was the case. If it was so, then some 4ATs could also get 6+secs to 8+secs timings and 6MTs could get 10+ secs too, right? That didn't happen so I believe the Gtech Pro was functioning properly.
derekwcw: The Top Gear review of the RX-8 gave the same timing of 131.8 for the M3, 350Z and the RX-8. Shows the handling and cornering of the RX-8 on the track makes up for it's lack of muscle. However, the topic of this thread is century sprint timings.
LsBlack: Thought of suggesting tonight to see how committed everyone is, but it started raining and doesn't seem like it's going to let up and dry off.
derekwcw: The Top Gear review of the RX-8 gave the same timing of 131.8 for the M3, 350Z and the RX-8. Shows the handling and cornering of the RX-8 on the track makes up for it's lack of muscle. However, the topic of this thread is century sprint timings.
LsBlack: Thought of suggesting tonight to see how committed everyone is, but it started raining and doesn't seem like it's going to let up and dry off.
08-15-2006, 03:47 AM
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Thks for the clarification. Its hard to believe that the discrepancy is so wide. Hopefully the 6AT is different. I will volunteer to do testing once I collect and run in my ride, at the end of this year.
08-18-2006, 02:39 PM
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Wouldn't the gear ratios and shift duration play a big part in the times as well? I'd imagine that a flat-shifted manual box would be tenths faster per shift than a slushbox.. I would have thought the difference would have been closer to 2 seconds rather than 4 though, but the GTech pro is a reliable piece of kit.
08-18-2006, 08:08 PM
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3 NA 4ATs tested their timings that evening with timings ranging from 9.1 thru 10.5. Here's what we found that was interesting - the discrepancy of over a sec is really due to how and when we shift gears. In my first run on either fully auto or shifting at redline (7800 thru 8500 in multiple runs), timings was consistently at 10.5 thereabouts. But when i did a run shifting at 7k, we clocked 9.5. Derek clocked 9 using the same style. This speaks a lot for mythbusting siah - the car is not necessarily peaking at higher rpms.
08-18-2006, 09:19 PM
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Originally Posted by gfoo
3 NA 4ATs tested their timings that evening with timings ranging from 9.1 thru 10.5. Here's what we found that was interesting - the discrepancy of over a sec is really due to how and when we shift gears. In my first run on either fully auto or shifting at redline (7800 thru 8500 in multiple runs), timings was consistently at 10.5 thereabouts. But when i did a run shifting at 7k, we clocked 9.5. Derek clocked 9 using the same style. This speaks a lot for mythbusting siah - the car is not necessarily peaking at higher rpms.
1st of all i would like to apologise for my late post. because i had not got the G-Tech from my friend which i am supposed to post the result here. tired using a camera but it wasn't shake proof and i did swing my friend back to the seat when i boost at 1st gear.
i got another idea which is sticking a camera phone on it.well gfoo, i know u had been here for a long time, i respect that, but i think it was the driving method u used. 1st the fully auto i also recorded at 10 second. but with semi its totally different story. u do not bosst your second gear to redline, 1st gear 7k , 2nd gear 5.5k, 3rd gear u should be there, 2nd gear can drag your time 2-3 second thats what happening here
08-18-2006, 10:08 PM
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theboy i think if u read my post carefully, i'm actually agreeing with what you're saying. U r right, it's all about driving style. In semi if i dun redline n shift at 7k my timings was mid 9s. I didn't have to shift to third as 2nd gear hit 100kmh liao. I'll try yr method of shifting at 5.5 2nd gear next time if we have a test again.