Jump to content
SAU Community

Recommended Posts

One of the benefits of the Americans getting hold of a car is that we can get some English-speaking people with big budgets to do big build-ups, which is inevitably good for us.

A good case in point is this piece I found on the SCCW site, who are building up a NA VQ35DE for the Castrol Syntec Top Shop Challenge.

Castrol has invited us to face off against our sister magazines (Super Street, Modified, eurotuner, Import Tuner, Turbo, and Lowrider) by teaming up with a shop of our choice to build a no-compromise engine in its Castrol Syntec Top Shop challenge.

The competition is based on peak horsepower and torque per displacement (displacement is multiplied by two for anything with forced induction), total horsepower under the curve, a 30-minute endurance death match (all tests administered on an engine dyno), and an engineering challenge to impress a panel of engine-guru judges.

We decided on Nissan's VQ35DE as our platform. It has the ideal combination of displacement, rpm, fundamental design and flow capabilities, plus a respectable amount of low-end torque. Add in the 100-octane gas everyone will be using and we'll be able to raise the stock compression ratio to a respectable race engine standard. Our aim is to build an easily replicated, street-usable, 400bhp naturally aspirated VQ.

Its a pretty interesting read. They've basically tapped Cosworth Engineering to give them a hand by using their off-the-shelf parts, and as a NA fan I'd love to see how this thing pans out.

Link to comment
https://www.sau.com.au/forums/topic/230820-sports-compact-car-vq35de-buildup/
Share on other sites

  • 1 month later...

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

    • The chart of front pressure to rear pressure (with one being on the x axis and the other being on the y axis) is not a straight line on a typical proportioning valve. At lower pressures there is a straight line with one slope, and at higher pressures that changes to a lower slope. That creates a bend in the line at that pressure, called the knee point. If you do not change the proportionng as the pressure gets higher, you will suffer excessive pressure (at one end of the car or the other, depending on which way you look at the proportioning action) and then get lockups at that end. The HFM BM57, from my memory of previous discussions, is based on the BM57 from a different car (to a Skyline), with a different requirement for the location of the knee point and the distribution of pressure front to rear, and so is not a good choice for an upgrade on a Skyline. Here's a couple of links to some old posts, one from here, one from elsewhere. A lot of it pertains to adjustable prop valves, but the idea is the same. There are plenty of discussions on here about this issue from al the many years of people wanting a cheap/accessible option. https://grassrootsmotorsports.com/forum/grm/learn-me-brake-proportioning-valves/236880/page1/ https://grassrootsmotorsports.com/forum/grm/learn-me-brake-proportioning-valves/236880/page1/  
    • Yeah dunno why johhny posted that here with no context, just post on FB/insta bro where he put it up?  Laine had an off at T4 during Thurs prac, he's ok, car is less than perfect, they are done for the weekend, he can fill in the rest. Bando also binned it like 100m up the road.   
    • I feel there must have been a FB/insta post and the weekend did not start well at all I hope everyone is all okay
    • Yeah, I guess its pretty easy to get to if this doesn't work. Just wait till next oil change and pull it out. I am going to have to do the oil pan gasket soon and thought I'd just replace it while I was there.  Thanks
    • All that matters is you're safe and you were able to type that post. Hopefully heaps of parts you can recover for the next shell.  
×
×
  • Create New...