Let The Contreversy & Flaming Begin, Quarter mile Time w/ G-Tech Pro

Finnattic · 10-17-2004, 07:06 PM

Did two runs, temp was 47, humidity 85% on level ground. The times are consistant with my previous 0 to 60. however my best 0 to 60 tonight averaged 6.5.

Ok, let the suspence stop.

Best run outa two 14.86 @ 96.4mph

Pics below

DStewart · 10-17-2004, 07:13 PM

Not bad at all. Those things aren't 100% accurate but they are supposed to be close. Trap speed seems a little high though. I can't believe how quick these trucks are.

**goathead** · 10-17-2004, 07:17 PM

sweet. now all you have to do is go to the track to put those doubters to rest. ill bet its pretty close. nice job.

steve

Finnattic · 10-17-2004, 08:03 PM

I know one thing...I can't test on the street without engaging the 4wd. I can't take off fast without worrying about spinning.

All it wants to do is spin..Those times are in 4wd.

I hope at the track it will be better traction with all the rubber laid down.

the head · 10-17-2004, 08:11 PM

No flames but the mph is about what I get running a 50 shot of nitrous so I think it is off there. That said, I think the ET is off as well. But it's all a guessing game until you can get it on the dragstrip to know for sure.

Finnattic · 10-17-2004, 08:16 PM

Quote:

Originally Posted by the head

No flames but the mph is about what I get running a 50 shot of nitrous so I think it is off there. That said, I think the ET is off as well. But it's all a guessing game until you can get it on the dragstrip to know for sure.

There you go, adding in reaction time do these times look even close to you? Do you run in 2wd and spin at all? I can't seem to get traction... I've never been to the strip but you have...

NorCal 4x4 · 10-17-2004, 08:25 PM

Quote:

Originally Posted by Finnattic

I know one thing...I can't test on the street without engaging the 4wd. I can't take off fast without worrying about spinning.

All it wants to do is spin..Those times are in 4wd.

I hope at the track it will be better traction with all the rubber laid down.

Do you switch back to 2wd after you get going? The reason I ask is that the top speed for 4H is supposed to be 62.5 mph, according to the owner's manual.

Also, do you have E-LOCK®, (which couldn't be used), or VDC, (that you could choose to use)?

ABLS alone, seems like it should prevent too much spin. I know there was a thread where people were complaining that they couldn't spin their tires.

the head · 10-17-2004, 08:26 PM

I don't understand the "adding in reaction time" part of your post.

Personally (and it is just my own opinion) looking at the numbers and just guessing, I think it is in the neighborhood of 4-5mph and 0.4-0.5 secs off. Looking at the timeslips from similarly modified titans show times in the 15.3-15.2 bracket at about 90-91mph. The 47 degree air temp helps but not that much as compared to the fact that you're pulling the extra weight of the 4x4 drivetrain and the driveline losses associated with running it as well. I'm also willing to bet you still have your spare and tailgate still on the truck (which is worth 0.1 sec if you take them off) so you're running more weight than the 2wd trucks that have been posting times to this point.

Now, I could be totally wrong and you might have one of those vehicles that is put together with just the right specs on the parts and it is making more power than the others here. You just never know. The dragstrip will be the only true measure.

I have seen these meters be that far off in the past but it was when they first came out many moons ago.

the head · 10-17-2004, 08:27 PM

I don't have traction issues at all on the dragstrip.

Finnattic · 10-17-2004, 08:33 PM

Quote:

Originally Posted by swarren1

Do you switch back to 2wd after you get going? The reason I ask is that the top speed for 4H is supposed to be 62.5 mph, according to the owner's manual.

Also, do you have E-LOCK®, (which couldn't be used), or VDC, (that you could choose to use)?

ABLS alone, seems like it should prevent too much spin. I know there was a thread where people were complaining that they couldn't spin their tires.

I wouldn't think switching it from 4 to 2wd under extreme acceleration would be a good idea and from what you say either is running over 65 in 4wd...

I do have e-lock but no vdc,I thought it was a limited slip diff though. From what I've read about vdc it would probably slow your time but so does spinning. It's a catch 22...

Finnattic · 10-17-2004, 08:38 PM

Quote:

Originally Posted by the head

I don't understand the "adding in reaction time" part of your post.

At the strip when the light comes down the time it takes you to react when the green light is lit..If you have a slow reaction time doesn't that hurt your overall time? Where as the g-tech it starts when you do so there is no margin for error as far as bad reaction time.

pisswilly · 10-17-2004, 08:45 PM

when a magazine or MFG tests the 0-60 run times I assume they use some sort of timing device that starts when the truck does.....so......A stock Titan is somewhere in the low 7's. You are claiming a second quicker with just some exhaust mods? and in 4WD? WOW
There is no doubt these are quick trucks and mine is almost identical to yours. I turned off VDC and in 2wd it squeels and then hooks and goes. In 4wd it is WAY slower........I would say at minimum 2 seconds to 60 in 4wd. So either you got a REAL fast one from Nissan or your timing gizzmo is awfully optimistic!

the head · 10-17-2004, 08:50 PM

The reaction time isn't added into the actual 1/4 mile time. It is a separate stat that only comes into play if you're bracket racing or as they say "running heads-up". So in other words if you run a 15.00 1/4 mile with a reaction time of 0.600 secs, the timeslip will still say 15.00. On the same run if you had a reaction time of 1.2 secs, the timeslip would still say 15.00 because that's what the vehicle actually ran from start to finish.

This is also how the one titan owner on here beat one of the Hemi guys in a race. The titan turned a slightly slower ET, but because his reaction time was better he won the race. For example - truck A runs a 15.00 and truck B runs a 14.90. But, truck A cut a 0.600 reaction time and truck B cut a 1.00 second reaction time. Adding that up, truck A really took 15.6 seconds to make the run but truck B took 15.9 seconds due to the much slower reaction time. The timeslips will still say 15.00 and 14.90, but the win light will be for the slower truck due to the quicker reaction time. Hope that makes some sense.

NorCal 4x4 · 10-17-2004, 08:51 PM

Quote:

Originally Posted by Finnattic

I wouldn't think switching it from 4 to 2wd under extreme acceleration would be a good idea and from what you say either is running over 65 in 4wd...

I do have e-lock but no vdc, it is a limited slip diff though. From what I've read about vdc it would probably slow your time but so does spinning. It's a catch 22...

Yeah, you're probably right about switching under acceleration. Here's a thread where tire spinning is discussed, post #34 as an example: Acceleration and Gearing

Finnattic · 10-17-2004, 08:54 PM

Quote:

Originally Posted by pisswilly

when a magazine or MFG tests the 0-60 run times I assume they use some sort of timing device that starts when the truck does.....so......A stock Titan is somewhere in the low 7's. You are claiming a second quicker with just some exhaust mods? and in 4WD? WOW
There is no doubt these are quick trucks and mine is almost identical to yours. I turned off VDC and in 2wd it squeels and then hooks and goes. In 4wd it is WAY slower........I would say at minimum 2 seconds to 60 in 4wd. So either you got a REAL fast one from Nissan or your timing gizzmo is awfully optimistic!

I could see a little slower in 4wd but not a sec or 2, maybe a tenth of a sec or 2...the being in 4wd is slower than 2wd is one issue that COULD be proven with the g-tech and if I could only get off a 2wd run without spinning I would...

man, I don't know, this has gotten real interesting. When I stomp the gas the tires will spin continuously. Some say theirs won't do that...I NEED TO DYNO AND GET TO THE STRIP........