A collection of video from the past weekend at the nopi event. We established a new record for the quickest and fastest wrx without nitrous. Its always a good feeling when you can make a dozen passes in the 10s and still drive the car on the truck after an event, knowing you didn't break anything. We hope you enjoy the video.

http://video.google.com/videoplay?docid=-3742231742344434125

nice job on the 10.1. I see 9's comin soon...

Didn't you guys have a crazy custom tranny built? 4-speed or 5-speed?

nice job on the 10.1. I see 9's comin soon...

Didn't you guys have a crazy custom tranny built? 4-speed or 5-speed?

We are an authorized ppg gearbox installation center. It is a ppg dogbox.

We are an authorized ppg gearbox installation center. It is a ppg dogbox.

Wow. I did not know ppg's could handle that kind of power.

if you knew what we knew about ppg...you would **** your pants. It can handle a load more power then we are even throwing at it.

that car is very fast but for some reason it does not appear to be launching that hard. maybe its the camera angle. cant wait to see some 9's in that thing.

Nice vid. Thanks for posting.

That's a serious rex. :)

ha ha...."tree'd" we've all been there....it totally sucks to know you had the faster car but you lost because you were sleeping at the line. :lol:

As said above, what are your 60fts? Seems like you're coming out of the hole slowly. Maybe turn the boost down a little in first gear to get more traction or don't have the two step RPM up so high.

good luck with 9's.

niiiiiiiice:banana:

As said above, what are your 60fts? Seems like you're coming out of the hole slowly. Maybe turn the boost down a little in first gear to get more traction or don't have the two step RPM up so high.

good luck with 9's.

Maybe they are trying to keep the axles in the car. You can't win a race that you don't finish.

Sweet runs!

^^^^well considering all the work that is done to the car...i don't think there too worried about giving out a few hundred for new axles....i wanna see a 1.5 or 1.6 60ft outta that car

^^^^well considering all the work that is done to the car...i don't think there too worried about giving out a few hundred for new axles....i wanna see a 1.5 or 1.6 60ft outta that car

+1, what kind of 60' times is it running?

+1, what kind of 60' times is it running?

+2, seems like it was banging off the rev limiter for quite a while there. Big valley is in the 9's with those kind of traps

yea deff get those 60 foots down in to like 1.5 you should be hitting 9s. what are the 60 foots

Some wicked runs you had there. Looked like a good deal of spin off a few of those runs. Thanks for the video :cool:

+1, what kind of 60' times is it running?


I was out there last weekend and saw the car run (quite impressive). I talked to one of the guys and he said that this was the first time they'd used the hoosiers, so they hadn't gotten particularly accustomed to getting the best launch with them yet, but they had gotten 1.6 sec 60s on street tires, and were aiming for 1.4s with the slicks.

Thats awesome & very impressive.

Let us know when you break the 9 second barrier.

thanks for the kind comments.....

The best 60' actually was 1.65, but was spinning badly.

I know big valley is trapping similiar mph, but has lower et's

I think either we need to turn the boost down on the launch, or we need to start using anti-lag and come out hotter?:devil: :devil:

The car doesnt look like it comes out crazy because the camera angle, and the suspension is so stiff, the car doesnt really squat in the rear like other cars do.

-mark remick

Nice times!

A good squat free launch is the way to go, you just need to sort out the fine details regarding launch rpm tire pressures and boost profile in low.

Well done.

Larry

It takes so much mathematics to get the cars to launch perfect

Nice times!

A good squat free launch is the way to go, you just need to sort out the fine details regarding launch rpm tire pressures and boost profile in low.

Well done.

Larry

How many times I've said the same thing... Wrong! You need to transfer weight to the back. That's why GP, BV and those fast EVO's get 1.4 60 FT. Your suspension is way to stiff in the back. Otherwise great passes with the suspension work out you guys will get those 1.4 60FT and 9's ET's.

If you transfer weight on an AWD you unload the front wheels and spin them, then the center diff transfers torque to the rear drive shaft and takes out the drive shaft or an axle or it then spins the back and reverses the process throwing the power to the front again. Unless the car is RWD conversion you want to keep maximum traction on ALL 4 wheels. If you watch a slow motion video of subarus on launch they will frequently spin the front then spin the rear if they don't have the power to spin all four through low and into second.

A hard squat in the back and carrying the front wheels for about 60' is necessary to get RWD GM multilink coil spring suspensions to hook, but it is not desirable on an AWD suspension and many other RWD cars. On the RWD leaf spring cars like the street hemi they got best launch setup so the rear end came up about 1 - 2 inches on launch which pretty much shoots the idea that a squat is desirable for all cars. You want to set up the chassis so you are working that specific suspension to maximum effeciency, there is no one magic setup.

(My car launches the same as this one, maybe that is why I currently hold the high altitude record for a stock turbo WRX on the 2 liter engine by over 4 mph and .467 seconds over the nearest competitor)

Larry

If you transfer weight on an AWD you unload the front wheels and spin them, then the center diff transfers torque to the rear drive shaft and takes out the drive shaft or an axle or it then spins the back and reverses the process throwing the power to the front again. Unless the car is RWD conversion you want to keep maximum traction on ALL 4 wheels. If you watch a slow motion video of subarus on launch they will frequently spin the front then spin the rear if they don't have the power to spin all four through low and into second.

Don't worry about the front wheels, the one that really push the car foward are the rear wheels. Look at all the top Evo's and Subie's... they all have something in common... all of them are set-up to transfer more weight to the rear wheels. For example take a look at Rigoli's blue sedan. That car lifts the front wheels off the track. And that was with the AWD set-up. ;)


A hard squat in the back and carrying the front wheels for about 60' is necessary to get RWD GM multilink coil spring suspensions to hook, but it is not desirable on an AWD suspension and many other RWD cars. On the RWD leaf spring cars like the street hemi they got best launch setup so the rear end came up about 1 - 2 inches on launch which pretty much shoots the idea that a squat is desirable for all cars. You want to set up the chassis so you are working that specific suspension to maximum effeciency, there is no one magic setup.

Put me a video of a rwd car that doesn't transfer weight an still achive a sub 1.5 60ft.

Here a local 05 GT with only a 106 trap speed he ran 12.3 (almost lifting the front wheels)
http://www.youtube.com/watch?v=cp-Nb2VmiGU


(My car launches the same as this one, maybe that is why I currently hold the high altitude record for a stock turbo WRX on the 2 liter engine by over 4 mph and .467 seconds over the nearest competitor)
Larry

That's really nice, un bolt that front sway bar and watch out! You might set a new record. :D

BTW- I ran stock 13.24 @ 101 with a 1.77 60ft. 103 Should be good for high 12's.

That's really nice, un bolt that front sway bar and watch out! You might set a new record.

I have no front sway bar -- so much for that idea.

BTW- I ran stock 13.24 @ 101 with a 1.77 60ft. 103 Should be good for high 12's.
With altitude correction (NHRA's 1/2 ET) a 13.239 run here at 5800 ft altitude is equivalent to a 12.84 at sea level.

Nice at sea level your time is only 3/4 of a second slower than the best times on the stock turbo for a 2.0 L wrx. I had 1.787 60's up here at 5800' altitude. your 13.24 @101 would have been about a 13.63 @ 97.97 here. That is assuming your talking about a 2.0L wrx instead of the Sti you now show in your sig. If you ran that time in an STi on the stock turbo its not very impressive at all.

Put me a video of a rwd car that doesn't transfer weight an still achive a sub 1.5 60ft.

You are trying to imply I said the car does not transfer weight --- I did not say that!

That is a physical impossibility. Weight transfer is a function of wheel base, CG height and power to acclerate. I am talking about actively encouraging squat vs fighting it. Big valley also has limited squat and a firm suspension, and he is a long ways from carrying the front wheels. You don't want the car to excessively squat on launch as it lowers overall traction and slows down the chassis reaction time by wasting time moving the body around rather than accelerating it forward.

http://videos.streetfire.net/video/d766f0d3-a87e-425d-be1e-98ef00da008d.htm


I'm not going to crap up this mans thread with a tit for tat debate with you.
If you want to start a thread on launch technique's feel free I would be happy to discuss it in another thread.

Larry

Very fast car. keep up the great work.


TERRY...

I just wanted to thank everyone again for their support. We have alot left in the car. We hope we can find a way to be a menace to ballard at least. :) We will keep you guys up to date over the next couple of weeks as the car continues to take form. Marco @ Magnus is working on a new prototype intake manifold for the car. Pics and dyno plots of it to come as soon as it arrives.
Thanks,
Chad

I have no front sway bar -- so much for that idea.

So you run a stiff rear end and no FSB. :lol:


With altitude correction (NHRA's 1/2 ET) a 13.239 run here at 5800 ft altitude is equivalent to a 12.84 at sea level.

Nice at sea level your time is only 3/4 of a second slower than the best times on the stock turbo for a 2.0 L wrx. I had 1.787 60's up here at 5800' altitude. your 13.24 @101 would have been about a 13.63 @ 97.97 here. That is assuming your talking about a 2.0L wrx instead of the Sti you now show in your sig. If you ran that time in an STi on the stock turbo its not very impressive at all.

So a 1.787 60ft and you still trying to push this set-up on them?

BTW- Yes it was a stock STi back when I first bought it. I didn't say it was impressive... is just that I manage to do the same time as your "record" with a lower trap speed. I know it is slower at altitude :rolleyes: (since the atmosphere is my line of work) The point is 1.787 13.2@103 doesn't help too much with your theory. ;)


You are trying to imply I said the car does not transfer weight --- I did not say that!

No, what I'm trying to say is that when you have a stiff rear end and you try to avoid weight transfer (to a minimum) Your car is not going to hook up as well. That local Mustang video is the best example. It runs almost 1 full second quicker than you and it only traps 3 mph higher. With out the suspension that car is a low 13's second car. Even in an AWD car you need to allow some weight transfer and load those rear tires well. I'm not saying that the car need to squat lol.


Big valley also has limited squat and a firm suspension, and he is a long ways from carrying the front wheels. You don't want the car to excessively squat on launch as it lowers overall traction and slows down the chassis reaction time by wasting time moving the body around rather than accelerating it forward.

http://videos.streetfire.net/video/d766f0d3-a87e-425d-be1e-98ef00da008d.htm


Dude, I know how Georgie's car is set-up.:lol: After all we are from the same place and talk on a daily bases. ;)

http://www.carrito.net/board/cmps_index.php (Need to read Spanish)

The car on this thread if properly set-up it would do 1.4 60FT. The top two cars (EVO-STi) from PR... Procco Evo and Georgie's Sti's they both do 1.4 60 FT. You just can't have a stiff rear end, you need to allow weight transfer otherwise you'll get a lot of wheel spin.


I'm not going to crap up this mans thread with a tit for tat debate with you.
If you want to start a thread on launch technique's feel free I would be happy to discuss it in another thread.

Larry

Yeah I think that's a good idea. Anyway this is my last post on this. If you guys want to know how the guys from PR get good times well pay attention to your drive train. If you don't want any then keep figuring out by yourself. All I know is that the recipe it's already been made... why re-invent the wheel. ;)

we have a couple of different schools of thought on our approach to lowering the 60ft time at the next event. hopefully, we can sink the car down in the sub 1.5 range. I would like to see it in the low 1.4 range AT LEAST personally. However, we have quite a few variables that we can change. It is simply a matter of seat time and gaining knowledge on every pass.

Weight transfer will always happen, putting in stiff springs at the rear, doesn't reduce the weight transfer, it reduces the suspension travel, and INCREASES the instantaneous downward force on the rear wheels on launch. Increasing rear grip at the point of launch. However, depending on the damping there is then a following reaction some finite moment of time later which unweights the rear wheels.

Running a controlled squat (ie correctly damped) on the rear should be better for AWD, as it reduces the transfer to the rear as the car starts to move, which allows the front to do more as the car starts to roll, and decreases the sudden increase in load seen by the rear axle.

If the car is too soft, or underdamped at the rear then the car will squat so easily it will bounce and unweight there rear and generall cause problems.

Allowing the rear to squat but stopping the front rising will also lower the CofG during launch, and so on and so forth.

But after all that, the best setup is the one that works best for you, and I don't yet know what that is for me, let alone anyone else. I have managed to pull at 1.51 60ft on a set of radial non-drag tyres, but with increasing levels of power, I've found in hard to replicate that and not break more stuff.

Just my two pennyworth.

Paul

http://videos.streetfire.net/video/d766f0d3-a87e-425d-be1e-98ef00da008d.htm


Holly Crap that car can launch! I think the OP's car could definalty hit 9's with some launches like that !

there are some mathematical formulas you can follow that work pretty well. However, there isn't much we can do with the c of g because the car cannot be lowered anymore due to the width of the tires and the potential for it to rub against the body.

Chad

Chad, did you get the pictures?

Chad, did you get the pictures?


Chad did receive the pictures and wanted to tell you thanks. He is currently working on the website and the pictures will be used.

-mark

how are you guys shifting the car? It seems like you can get some better ET's with quicker shifting. When I shift my dogbox on the strip it sounds like a automatic.

sick, nxt time do without the music

Congratulations!! That's awesome.
Keep up the good work.

Ali
ESX