Jump to content
SAU Community

Recommended Posts

All,

 

just bought a dragy and i have to say it is brilliant .

it connects to phone and does gps refresh every .100 sec and quite accurate

 

running on low boost with falken tyre i get a 0-60 of 4.6 sec but if I practice more I think i can get it down to 4 as it doesn’tgrip

 

do you guys shift into 2nd as soon as it is rolling to get fast 0-60 ? If i leave in first then 0-60 is around 5.5 

 

i stick it to 2nd as soon as I have wheel spin and it bounces from red line and then get mid 4

 

on high boost which I haven’t tried (500bhp) i reckon it will be 3.8 if i can get power down

 

on low boost it is 430 bhp 

Link to comment
https://www.sau.com.au/forums/topic/480294-dragy-va-vbox/
Share on other sites

"G4" doesn't give us enough info, there are G4 Fury, G4 Xtreme, G4 Thunder... etc

I'm trying to work out what is your base spring pressure and max boost pressure and if your ECU has traction control functionality. 

If you turn boost control off, how much boost does your turbo make? 

 

 

Link to comment
https://www.sau.com.au/forums/topic/480294-dragy-va-vbox/#findComment-7930164
Share on other sites

It runs at  1 bar spring apology not 1.2

 

ecu is link plug in, see link below

 

https://h-dev.co.uk/product/r34-gtt-rb25det-neo-link-g4-ecu/
 

my tuner at time said it needed some work for traction so we disabled it all together and there is no traction

 

low boost is 1.1 bar and high boost is 1.3 which is changed by a switch

Link to comment
https://www.sau.com.au/forums/topic/480294-dragy-va-vbox/#findComment-7930182
Share on other sites

2 minutes ago, drifter17a said:

How do you guys get grip when accelerating?

 

shift to gear up at expense of less power initially but grip?

Your computer can set lower boost levels in the lower gears.

Different suspension set ups.

Drag friendly tyres.

Link to comment
https://www.sau.com.au/forums/topic/480294-dragy-va-vbox/#findComment-7930188
Share on other sites

12 minutes ago, drifter17a said:

How do you guys get grip when accelerating?

 

shift to gear up at expense of less power initially but grip?

You could lower your base spring pressure to say, 0.5 bar and then use a 4 port mac valve and run a very progressive boost by gear. 

You could setup your traction control. You haven't said why it doesn't work, I'm guessing you need a non-powered wheel speed sensor. 

Stickier tyres as mentioned above. 

Actually I think this has all been said before, this thread and your recent tyre thread.

Link to comment
https://www.sau.com.au/forums/topic/480294-dragy-va-vbox/#findComment-7930189
Share on other sites

  • 2 weeks later...
42 minutes ago, drifter17a said:

Yep and that is not with flooring it

 

0-60 is around 5 sec at best 

got pair of michellen sport 4s so will report back if it got any lower

Let us know what tyre size your running when you report back

Link to comment
https://www.sau.com.au/forums/topic/480294-dragy-va-vbox/#findComment-7930874
Share on other sites

So tyre made a massive difference 

 

pilot 4s rear 275

 

front is pilot 4 which doesn’t really matter for acceleration. 0-60 went from 5.3 to 4.8 a wopping 0.5 sec !!!!

 

it sticks like a glue, i can’t even spin wheel on first or hardly it does. It used to spin like hell on first and second on shitty falken 

Edited by drifter17a
Link to comment
https://www.sau.com.au/forums/topic/480294-dragy-va-vbox/#findComment-7931190
Share on other sites

Dragy is awesome! We use one in my car at roll racing to see if the changes are working. Fastest 100-200 is currently 4.11s, with the old turbo. New one I've done a 4.25 on 30psi in the middle of summer. Should go mid 3s now we've got it turned up if we can get it to hook up. 

Screenshot_20200524-232217_dragy.jpg

  • Like 1
Link to comment
https://www.sau.com.au/forums/topic/480294-dragy-va-vbox/#findComment-7931591
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Latest Posts

    • Oh, also, forgot to add these photos I believe.
    • Thought i'd update on this. I was able to get in contact with Craig Lieberman and later on Darryl Alison (owner of Kaizo Industries). Darryl was able to help me verify that my car was in fact one of theirs and is helping me find more info on mine !
    • There's restrictor pills in the stock boost control hoses. That's how they set the amount that was bled off and hence the "high" boost setting. The usual mod in the day was to remove it and send the "high" boost setting up to about 14 psi.
    • Thanks Duncan, that's the best info I've read. Furthermore after learning about the PCM programming side controlling the factory boost solenoid, the purpose of the solenoid is to "bleed" boost when pin 25 is earthed, thus allowing spring pressure in the wastegate actuator to overcome diaphragm boost pressure, thus closing or reducing the position of the wastegate flap creating more boost as the turbo is able to spin faster. It's pretty cool to see a designated Pill to do exactly this, would have liked to have seen it with a tiny filter over the end for those moments in vacuum.  The constant bleed pill has now been removed completely from the system and solenoid boost control has been restored once again.   Case closed 😂
    • The wideband reading is meaningless if it's not running. Why are you using shitty old sidefeeds on any engine, let alone a Neo? What manifold and fuel rail are you using to achieve that? Beyond that, can't help you with AEM stuff as I've never been their ECU/CAS combo.
×
×
  • Create New...