Willsalter1000 wrote:
Thanks for the picture, it's just what I was after. What I was looking for was whether the dry Spider plate still had the fuel channels which cross the opening of the plate to the centre of the spider. I can see that they're still there.
The fuel conduits (channels) also act as supports for the central drop tube, so we leave them in place, plus we'd have to blank off a bunch of ports if we removed them, so that we'd be more trouble and expense than putting them in.
Regarding me asking the size of the spider centre, it's just to see whether it'll fit my intake, going by your dimensions I think it will. I don't know whether you've seen an LS1 Super Victor intake, the walls of the intake runners protrude into the carb/throttle body opening so it is actually quite tight for space in there. I'll try and post a picture up so you get the idea.
Yes I'm very familiar with that manifold and I used one of the smallest versions for dimensions, when I first designed the Spider. Since then we've sold most of our 4150 Spiders to customers with Victor intake manifolds, so you can be sure it will fit.
My intakes about 95mm deep where the spider would sit. A spacer should get the legs sitting central to the port.
The legs can be contoured up or down to get the desired position but as long as the legs don't fire the nitrous along the top or the bottom of the runners, you'll get the majority of the benefits it offers.
For your further information, I have opinions from US nitrous experts that think I've got the position wrong, as some of them claim it would be better if they fired along the top and others believe the bottom would be better.
My choice is based on some SOLID LAWS OF PHYSICS (called the Bernoulli principle) which are PROVEN FACTS, so I would be very surprised if I'm wrong but only time will tell whether that will be the case or not. So far nobody has had the opportunity to carry out back to back FAIR testing on a specific vehicle to prove one position works better than any other and even if they had, that couldn't be taken as solid proof, because one position may work better on some manifolds and not others and that's possible even if my location initially proves to be correct.
Whatever the case, for the amount of power you are intending to add, the exact position shouldn't be too critical, so you don't have to concern yourself too much about that.
Finally on this matter, wherever you positioned the legs (even if they hit the dividers between the runners), the results would STILL BE BETTER than if you used ANY other injection arrangement - FACT!!!
I'm going to have to have a good think, though I'm swaying towards the spider plate over the scorpion or trap door atm.
You'll find the Spider plate easier to instal and it should produce results as good as our other options (for this level of power), so that would be my recommendation.
Thanks for your help so far
My pleasure.