I didn't mean messing around with venturis as such, more I was trying to find out what calibrations of air/fuel jets etc people are using as I can try and get the closest to ideal set up in one go rather than trial and error ordering every diameter under the sun!
If I were to go bigger at some point [I'm talking 2.0l bottom end] are we still saying if it's jetted to the gti head we're ok or is that the point I'm going to need to start looking at bigger jets? Thing is, we haven't even competed yet and Skinny is already talking about using the winning vehicle as the start of a fun track day tool that we can work with and learn on as we go. We've done a mk4 escort before, but him loosing his job meant that had to be sold for funds, but the thought of a 2.0l bottom end with a gti head may seem like a daft alternative to ripping it all out and starting over with something bigger, but to us represents good value for money [in terms of how much we can learn doing it, working with it and reliably using it both on road and trackdays]. Is there any free software out there where you can input spec and what you hope to achieve and BANG!! Robert's your mothers brother...we have the calibration of jets required!
Apologies for bringing something up that has probably been discussed over many a thread, but I'm more an injection kind of guy, and when I have gone bigger [2.0l 16v in my Vauxhall Chevette] I just followed advice on kit car builds as to injector spec.
