I am running a 275/50-15

 

I honestly can't help you on the track. I never go and if I did I'd be on the slicks or Mickey radials

The nittos do not want to be shocked, I don't care if it's on the launch or the shift

On the street I am footbraking and keeping the suspension preloaded and then leaving

That is as much as I can hold it before i can't hold the rear axle with the service brakes

I feel it would hold alot more on the leave if I could clamp more

I will be testing with the transbrake and 2step here shortly and will know more. But I don't think they will like the jolt and shock of the suspension with the transbrake

 

"Z"box FTW!!!

 

The 555rs are not a bad street tire if they're coupled with the appropriate suspension. Im using my 275/40/17s with a mosier 8.8 eaton trutrac and 3.42 gears with over 600rwhp on my Ws6. Although i get some spin at the top of first, it dead hooks in 2nd.

 

I am still laughing that you got banned from FB: Boosted LSX for starting this same thread there. What a bunch of pussies their admins are. Straight snowflakes! They obviously don't realize good information when they see it.

 

I'm using it lol

Yeah I'm not quite sure about that one lol. I mean I am a dick but that wasn't the point of it lol

 

They banned you for you showing everyone that a certain tire works for your setup??? Or was it for filming yourself breaking the law? And to be clear, I'm by NO means judging. I think we've all been triple digits at various times on the street.

 

If you try to get those nuthuggers over there to look outside of their tunnel vision, their feelings get hurt. They aren't open to any disputes. They have their ideas, and that is all there is.

 

awesome. will be really cool to hear more details on the setup and how it all works together. holding ~1G of acceleration from 0-100mph on the street is phokin crazy

I'm ~900whp c6 vette with 6 speed so different setup, but I always just assumed I'd need a 4wd car to hit <4s on the street 60-130. 3.1 seconds 100-150mph is just insane. really impressive stuff man. clearly took a lot of thought and work to get to that level.

 

Sounds like you know something about being banned over there looool

Thanks alot. Yes.lots of time. Haha. I have over 400 vbox files... And 2 to 3 hits per file.but it finally came together

It's definitely why I know the gtr and ttg stuff is absolutely insane what they can do. Like crushing lol

 

Alright may ramble a but will get it across

I'm kinda on a top fuel approach,

I know that these tires can hold around .9g of acceleration on the asphalt and not get into trouble

Get above that and poof... Stay below.... No problems

So the goal is to hold that target .9g as stable and as far as I can until I don't have enough power to deliver .9g as speed increases

So I am limiting power up to around 110 and then power limited after that.

So here we have an 8.40 pass track from Josh (ero)

Take note of the G curve when we have unlimited traction and full power in right off the launch




Now here is my street pass.... Remember what I said about trying to hold .9g. this is very similar acceleration out the back as joshes pass above





Now look at that g curve.... And here is the data log from that hit...

You would never think that boost delivery would deliver that G curve.....





The shift is the trickiest part by far.... To not shock the tire but not get a lul in acceleration aswell

This is what I fought with the ams1000 and why boost vs speed and boost vs time won't work.

That delivery of boost on the shift has to be at the exact right time and very precise

This is why the holley finally let me do what I need

I use boost per RPM and each gear has its own table

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What I am really doing is controlling how I get on the converter

My settings don't change if I go from a dig or if I go from a 50mph roll.... And the car will run almost identical 60-130s either way

I don't have a wheel speed nor DS speed on the car period right now


With the boost delivery sorted this well by adding TC which I am in the process of it should be almost stupid consistent

 

So when the rpm drops from the shift the holley automatically switches tables?

Thanks for posting btw!

 

Yes you are correct. No input is needed. I am doing this all on a holley HP


Here is good clear snap shot. You can see my target boost which is coming from the tables... And the actual boost. And dome pressure is up there


This is actually the 9.54 hit, 25psi in high. I did have to blip that one right after the leave once

 

That target boost/actual boost trace is sick!

 

That's not possible!!!

 

You working on adding the Davis box? or something of your own design?

 

thanks for posting. that's really wild. I did not realize Holley had that functionality like that on a per gear basis. also did not realize that an 8 second run at the track meant almost 2g at launch. really cool stuff, I'm sure that took ages to get so perfectly dialed in like that.



do you have a build thread anywhere with more details on the car? (weight, whp, fuel, motor setup, etc)


would be interesting to see the difference of these numbers on the street vs. at the track too with more grip

 

damn impressive!

dumb question: what pressure do you run in these? I have the same tires and i'm trying to make them work for me.

 

He has an extremely long and detailed build thread over on norotors.com, just search zbrown.

So how do you reset the tables back to the base?

 

I believe this was my timeslip from that V-box data.