Jump to content
SAU Community

Recommended Posts

For people who track their cars, what sort of time improvement would you expect from say a Cobb tune, mid pipe and cat back exhaust upgrade?

Also has anyone v-boxed the before and after 0-100, 1/4mile times?

I am trying to compare the (09/10 cars with simple mods) with the (2011 models)

Cheers

Link to comment
https://www.sau.com.au/forums/topic/345038-cobb-access-improvement/
Share on other sites

I ran my 09 car for about a year with the stocker tune, about 10~15 track days at EC, WP and OP. After applying the Cobb tune, track times were no better, and initially went backwards a bit... There are a number of factors. The first generation of R35 tunes had explosive power application, overwhelming VDC thus pulling power and running slower. Thankfully Willall came to the party with a tune which applied power/boost in a more linear fashion, suited for the circuit, which helped a lot. If you're running with an extra 50 or 100awkw, VDC just doesnt work (as intended). You need to turn it off and/or be much more judicial with the throttle.

It's difficult to quantify my lap time improvements as i've made a bunch of changes surrounding suspension, tyres, aero and brakes. But if i had to guess, at a track like Eastern Creek, i would say adding 40awkw equates to about a second improvement straight up in the R35.

As for 1/4 mile, i can't remember the stocker time, but running the Willall 98 tune, i ran 11.1 @ 128mph, and with Martins E85 tune i ran 10.73 @ 132mph. 0-100km/hr run on the 98 tune was 3.1s as measured on the VBOX. I havent measured the 0~100km/hr with the E85 tune yet, i think.

As for 1/4 mile, i can't remember the stocker time, but running the Willall 98 tune, i ran 11.1 @ 128mph, and with Martins E85 tune i ran 10.73 @ 132mph. 0-100km/hr run on the 98 tune was 3.1s as measured on the VBOX. I havent measured the 0~100km/hr with the E85 tune yet, i think.

Stock's between 11.6 and 11.8 quarter time and 0-100 around the 3.7 mark in LC2 cars.

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


  • Similar Content

  • Latest Posts

    • I'm normally copping my own abuse from neglecting my daily drivers. "Those suspension bushes will last a bit more", "Don't worry about the oil leak, just keep topping it up". The project cars I'm always doing things slowly on them as I'm wanting them to be done better, and neater, and nicer. Luckily I don't have to deal with 18 year old Matt's "Learning to wire" stuff in the project cars. And there's only one piece of wiring I'm displeased about in the Landcruiser, and it's about to be cut out... However, the box loads of parts that have been going through this place lately for the Landcruiser... Brake pads Brake Rotors Full handbrake overhaul Wheel Bearings Seals Swivel hubs Steering Boxes Half the suspension joints Shocks Air bags (Ones to go in the rear springs for towing) Water pump Timing kit Lower timing case Harmonic Balancer Radiator Lots of other little seals and shits Gas struts for the bonnet New power window switches And god knows what else I've forgotten... Ha ha ha I have my fingers crossed the pinion seals don't start leaking on the diffs, that the transfer case doesn't leak, and the gearbox input shaft doesn't leak, nor the rear main seal. As they're about the only seals I haven't replaced in the driveline! I'm seriously eyeing off buying new caliper rebuild kits front and rear brake calipers... I'll probably recheck all the valve clearances soon too, and hopefully, it should be all good and sweet to haul some long distance trips again!
    • Every time I pull my 3x gauges out of the console and see the crack-addict way that I did the wiring, and I just can't bring myself to tear it all apart and "make it nice", because it is currently working. In fact, the last time I was in there I probably made it worse.
    • The best part is when you own the car long enough that you look back and find your OWN ham fisted amateur shit!
    • The annoying part about neglect, is when you start to replace one thing, and find ten more broken things. Ham fisted monkey repairs you normally only find out about when trying to do something unrelated! Ha ha   Neglect you can kind of anticipate the huge costs to fix it all. Ham fistedness is normally a shock the first time your work on a new old car, as everything "looked" good before.
    • For DBA, check out their guide table here. https://dba.com.au/wp-content/uploads/2023/01/Direct_Replacement-Guide-2021.2.pdf   Additionally they have some other guides and info on how to make sure you choose the right pad.
×
×
  • Create New...