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-   Track / Autocross / Drifting / Dragstrip (http://www.the370z.com/track-autocross-drifting-dragstrip/)
-   -   Time for the 10s. (http://www.the370z.com/track-autocross-drifting-dragstrip/94884-time-10s.html)

FPenvy 08-11-2014 01:03 PM

Quote:

Originally Posted by DEpointfive0 (Post 2927052)
FB message it to me

fb can blow me with that having to download the messenger app. i've been told it's laced with even more NSA tracking stuff than fb itself. :shakes head:

i'll PM you on here :tiphat:

Arrvaxx 08-11-2014 01:28 PM

Hey! No thread hijacking to jerks! ;)

98intrigue 08-11-2014 01:33 PM

I really wish I had more seat time in my old Z. My run of 11.85 @ 119mph was literally my first run and only pulled a 1.9 60'. I can't believe there hasn't been much progression since, as all those times were there almost 3 years ago.

Arrvaxx 08-11-2014 01:39 PM

Quote:

Originally Posted by 98intrigue (Post 2927112)
I really wish I had more seat time in my old Z. My run of 11.85 @ 119mph was literally my first run and only pulled a 1.9 60'. I can't believe there hasn't been much progression since, as all those times were there almost 3 years ago.

Right? I'm not running an AAM so can't collect on the bounty but I'm going to make darn sure there is a competition! :D

FPenvy 08-11-2014 01:58 PM

Quote:

Originally Posted by Arrvaxx (Post 2927108)
Hey! No thread hijacking to jerks! ;)

it's still drag related based on me wanting to do all of this and more to a blank slate. just wnat my DD Z and my drag only Z :stirthepot:

Quote:

Originally Posted by 98intrigue (Post 2927112)
I really wish I had more seat time in my old Z. My run of 11.85 @ 119mph was literally my first run and only pulled a 1.9 60'. I can't believe there hasn't been much progression since, as all those times were there almost 3 years ago.

it is sureprising that it hasnt gone below an 11 yet.

still cant believe i pulled a 1.95 60' NA and with about only 60% left on street tires lol

Quote:

Originally Posted by Arrvaxx (Post 2927118)
Right? I'm not running an AAM so can't collect on the bounty but I'm going to make darn sure there is a competition! :D

i want boost :mad:

nomodsjk 08-11-2014 02:16 PM

Quote:

Originally Posted by Arrvaxx (Post 2926753)
This is related to a question I came up with while laying in bed...yeah my wife is used to me not sleeping.

I was thinking about height and thinking that I should drop the front as low as I can but then I thought about it again and realized that it might be better to lower the rear to get more on the wheels early. Anyone done this or disagree. I don't want to add weight if I can get the same effect messing with the heights.

You think it is that easy DEpointfiveO? If it is then I'm going for the 9s. ;)

I'll have to look at the BC ER setting options and see what I can do. I'll post some thoughts and get everyone's thoughts.

One advantage the Er's will give you is the easy damper adjustments on the rear struts. All you have to do is pop the hatch and dial the nobs that come up through the rear plastics

Read T 08-11-2014 02:28 PM

Quote:

Originally Posted by Arrvaxx (Post 2927029)
You know what I always say when someone dies..."Can I have his stuff?"

http://www.youtube.com/watch?v=_TqH3o0i-lU

phunk 08-11-2014 02:40 PM

I ran a miserable 11.6 last year when I was at 525rwhp, I had 2.0 60's and one really high 1.9. Shifting into 5th at the very end sucks and hurts the ET a little because you dont really even get to use the gear, you just shift cause you are at redline.

I was set to 0.75* negative camber I believe at the time, lowered on H&R springs, factory shocks. 315 toyo drag radials on 18".

If you want to not worry about traction, put stock 350z non brembo (rear) brakes on and cut the dust shield... now you can fit 15" wheels and slicks. a bonus here is that you can run a 28" tire and this should prevent 5th gear from coming up before the 1/4

To do 10s on drag radials is going to mean raising the suspension to stock height or more to get out of the extreme compression camber swing, and stiffening the heck out of it. I would raise the front too... keeping the front low is going to take weight off the rear and you need any weight you can get since you need to stiffen out compression/squat

Mitco39 08-11-2014 02:51 PM

Quote:

Originally Posted by phunk (Post 2927260)
I ran a miserable 11.6 last year when I was at 525rwhp, I had 2.0 60's and one really high 1.9. Shifting into 5th at the very end sucks and hurts the ET a little because you dont really even get to use the gear, you just shift cause you are at redline.

I was set to 0.75* negative camber I believe at the time, lowered on H&R springs, factory shocks. 315 toyo drag radials on 18".

If you want to not worry about traction, put stock 350z non brembo (rear) brakes on and cut the dust shield... now you can fit 15" wheels and slicks. a bonus here is that you can run a 28" tire and this should prevent 5th gear from coming up before the 1/4

To do 10s on drag radials is going to mean raising the suspension to stock height or more to get out of the extreme compression camber swing, and stiffening the heck out of it. I would raise the front too... keeping the front low is going to take weight off the rear and you need any weight you can get since you need to stiffen out compression/squat

What was your trap speed at Charles?

phunk 08-11-2014 02:55 PM

ill try and dig up the timeslips. i believe it was low, on the 11.6 pass i actually missed 5th gear and just coasted across. I *believe* it was a 119 and my other passes were 122-123.

Im curious to go back now. I have the 28" slicks and 15" wheels and small 350z rear brakes. Justin has the 350z down at Dynosty getting the new turbo setup and haltech tuned by Hal there, sometime in the next week will take it over to the local Dynojet and see what its making and I figure I will put my Z on again and make sure it is where I left it and then take them both to the track. Between the higher power I am at now, and the 28s, I am rather confident.

GSS138 08-11-2014 02:57 PM

Quote:

Originally Posted by Arrvaxx (Post 2926753)
This is related to a question I came up with while laying in bed...yeah my wife is used to me not sleeping.

I was thinking about height and thinking that I should drop the front as low as I can but then I thought about it again and realized that it might be better to lower the rear to get more on the wheels early. Anyone done this or disagree. I don't want to add weight if I can get the same effect messing with the heights.

You think it is that easy DEpointfiveO? If it is then I'm going for the 9s. ;)

I'll have to look at the BC ER setting options and see what I can do. I'll post some thoughts and get everyone's thoughts.

Hey Arvaxx you are thinking in the right direction, but have the wrong idea here I think.

Dropping the front low will actually add more weight to the rear. But dropping the rear will just counter act that.

Think of a suspension as 4 guys holding up a pallet full of dirt on all 4 corners.

FL FR
RL RR

If Mr. FL bends his legs and lowers down. It is going to get "heavier" for everyone else. Especially Mr. RR-his cross partner.

Now imagine that instead, Mr RL and Mr. RR both lift their hands and press the whole thing up. There is now a ton of weight on the rear.

Now imagine that while they have the rear raised in the air. FL and FR in turn both raise, their hands above their head. It's now equally distributed again.

(I am assuming of course these 4 men are clones with equal strength height and arm length.)

The point is you can add weight to the rear, by either lowering the front, or raising the back.

Lower too much, and it's just like doing a squat where you put your a$$ all the way to the floor-it becomes very hard to stand up- and, if your back is bent to much(camber out), you are going to lose the leverage of your legs.


The "Correct" height(if there is one) is this:
Street car-60% of shock travel length exposed(the silver piston thingy) and usable for compression. (makes nice smooth ride)
Road race-50/50 of shock travel length exposed used for compression/Bump (handles a variety of unknowns)
Drag car-40% of shock travel length xposed 40 for compression 60 for rebound (not worried about bumps in the road or ride quality, just want to put the power back on the ground.)

Don't flame me it's not a hard rule, but a good guideline.

phunk 08-11-2014 03:16 PM

That doesnt make sense... if Mr FR bends his legs and lowers down, its going to put more weight on FR and RL and take weight off RR. The weight will pivot off FR and RL and lower down on FL, raising up on RR. Just like when you are carrying a couch up or down the stairs.. the guy on the bottom is holding most of the weight.

Lowering the front of your car will take static weight off the rear.

This car isnt like a solid rear axle dragster. We want static rear weight high, but rear load/compression low to avoid camber.

wstar 08-11-2014 03:19 PM

Quote:

Originally Posted by GSS138 (Post 2927278)
The point is you can add weight to the rear, by either lowering the front, or raising the back.

Just thinking about basic physics with simple objects (as in your earlier example with 4 guys), this doesn't seem right? I realize with a suspension system there's a lot more going on, but think of the extremes with a simple static object: if the rear two guys kept their end 2 feet off the ground, and the front guys raised their end way up in the air (so that the object is now getting close to vertical, but not quite), wouldn't almost all of the weight be in the rear guys' hands at that point?

FPenvy 08-11-2014 03:20 PM

with all this talk of 4 guys bending over i may have to leave the room.....

:yum:

:wtf2:

GSS138 08-11-2014 03:43 PM

Phunk you are right as well. And maybe my model of the 4 guys holding the pallet is not good.

Instead. Let's image 4 girls from the Swedish Bikini team holding you up standing on top of the Ark Of The covenant from Raiders of the Lost Ark. IT IS THEIR JOB TO MAKE SURE THE ARK STAYS PERFECTLY LEVEL!

The swimsuit model on the front left corner, is getting tired,so she bends her knees just a little bit. She stops pushing up just a little bit. the weight on the other corners is going to increase a little bit.-but mostly is going to affect her cross weight-the rear right corner.

Now that is much different than if both of the two Bikine Models holding up the front, just let go completely. In that case-theoretically, all weight would have to be transferred to the two rear set of tits(if they don't want the friggin Ark to touch the ground).

However what could also happen, is that when the FL bikini model stops pushing up and bends over, the other girls sense this, and they stop pushing up too. Eventually they all just give up and the focking Ark of the Covenant is laying in the middle of the road.

Fortunately we have a frame on the car. So if the FL is lowered say 1/4" what really ends up happening is that corner sort of becomes a Bikini model and that 15-20 extra pounds gets distributed to the other 3 b1tches because they all are secured with metal beams to each other.


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