Zac's VY Calais L67

[WogBoyz]

man the VY l67 vs. bf GT 5.4l vid you smashed it! good work mate i bet he went home not very happy haha

 

[SweetWagon]

alrighty, had another crack at the strip tonight!!!

tried out an idea i had by using a 15psi (74mm) and through the tune limiting the boost to 10psi so basically i would have 10psi off of the launch...

first 3 runs resulted in a 14.5, 14.6 and a wild 16.6 lol...the 16 i stalled it up and got 8psi on the gauge before i left the line so it resulted in a shitfight with traction!

the last run i added more fuel and 2 degrees more timing. stalled up to 1000rpm and let rip. i was up against a bf xr8. left it for dead! a good 3-4 car lengths maybe more!

run was a pb for et and 60ft: 14.2@94mph, 1.97 60ft

shitchea!!

How do you limit the boost through the tune? the bypass valve can be controlled via the solenoid, however the solenoid is either on or off, there is no adjustment that could control boost on a PD supercharger?

 

[drift-it]

nice, what tune you running? still got the bigger maf on there?

Hey bud, still running the big maf tune. Just modded to my requirements. Lol went out again Saturday night for the townsville dragway final race. They are now closed :-( ran consistent 14.6 with timing wound back to get rid of kr.

 

[drift-it]

man the VY l67 vs. bf GT 5.4l vid you smashed it! good work mate i bet he went home not very happy haha

Lol, yeah he did a big skid turning onto the return lane. Got to the grand stand, packed his stuff up and left. Lol.

 

[drift-it]

How do you limit the boost through the tune? the bypass valve can be controlled via the solenoid, however the solenoid is either on or off, there is no adjustment that could control boost on a PD supercharger?

In my vy s/c xdf that The1 made for me. There is a function called supercharger boost limit vs. Intake air temp. So between 10 and 50c I have it set to 70%. Which gives me 10.5psi. If I change it to 50% I get 7.5psi. It works. Trust me I have 10psi from about 3000. Instead of waiting for 5000 using a 10psi pulley.

 

[SweetWagon]

In my vy s/c xdf that The1 made for me. There is a function called supercharger boost limit vs. Intake air temp. So between 10 and 50c I have it set to 70%. Which gives me 10.5psi. If I change it to 50% I get 7.5psi. It works. Trust me I have 10psi from about 3000. Instead of waiting for 5000 using a 10psi pulley.

Hmmm maybe Nigel can elaborate on how this is working in realtime?

Id be very interested to do this myself, but if it uses the bypass solenoid it wont be possible for me as im not running one.

Cheers

 

[The1]

yeh that's it. It runs the solenoid on a duty cycle.

 

[drift-it]

my 60ft went from 2.2-2.3 using 10psi pulley to 1.9-2.0 so it certainly made a difference! The only con is that the charger is still producing the heat of a 15psi pulley. I've compensated for that with less timing more fuel. It would work the best on a intercooled vehicle.

 

[The1]

what's your overall times like?

 

[drift-it]

Overall times? For drags? It'll run mid 14s constantly with 2.0 60ft with colder temps it gets a bit quicker.