I have been reading and asking questions of people again and so far the question has remained un answered (possibly poor questions!?), hence this post. The current range of flow benches are quite advanced (and expensive) but are you able to accurately predict the effect on the wet flow (ie the...
A snippet of information passed onto me was that Glas of Switzerland pioneered the use of a toothed belt to drive OHC/DOHC....is this true?
It would seem that the technology was put into production during the mid 60's by Fiat. Were there any advantages apart from the NVH?
It would seem that (given single In valve per cyl, round ports, carb fed, semi-hemi CC engine) that the short turn radius prior to the valve should be as generous as possible to avoid shrouding. However is the a recognised minimum radii in such as circumstance or are there too many variables (in...
I am interested in finding a 2D/3D airfoil calculator where I can alter sections (and not just NACA ones), section thickness, chord and angle of attack. Calculating lift, drag etc.
Is anyone aware of such a thing?
Is there an expected life span of epoxy used in intake ports? The original ali would be 'roughed' up with 60 grit paper or by a burr, then cleaned with acetone, prior to the epoxy being used. Epoxy is JB weld 'steel'. The epoxy will be exposed to fuel and may also be in quite large...
Much is made of this linkage setup in 'Chassis Engineering' by the author Herb Adams. Yet I cannot find much out from any other sources on the net. Does anyone have experience with it or links to information on it?
I would like to use a manometer to measure changes in pressures on a car following modifications to the bodywork. Are there any guidelines as to the appropriate use of such a tool?
I have noted with some interest that some SBC NASCAR engines use (reputedly) a honda rod journal size of 1.888. What is the particular reason for this? (reduce crank weight etc?)
What is the expected life span of such a set of 'NASCAR' carillo 'H' beam rods from such an engine (curious as there...
I have read much in the press (tech and popular) regarding the handling of certain designs of cars and the amount of work to get the said cars to where they are. Some of this has been specifically related to the engine position within the car such that front/mid engine placement would seem to be...
In conversation with another motorsport enthusiast the priorieties of suspension design was discussed at length (and still is being discussed) and it was interesting to note that we had differing views, and infact that there was little in the way of concrete guidance in our books (including...
The renault Master transaxle (UN5) seems to have ample strength for a current motorsport project. The problem that I have is that there is only one final drive ratio (known to the local supplier) of 1:5.35. A custom ring and pinion would price it into the porsche G50/50 (well used one I admit)...
Has anyone tried using the FEA program called 'Grape' that was suggested by one of the race tech magazines? I have some concern for its aplicability for 3d FEA despite the assurance of the mag article. Is a mild steel spaceframe braced with ali honeycomb.
is there a significant difference between the LEV touted by some japanese car makers for their recent vehicles e.g. Nissan VQ30DET LEV Cedric/Maxima and the Euro3 emissions standards. Specifically will a LEV meet Euro3?
Just as the topic suggests I am interested in finding more information on the merits of increasing the port angle relative to the valve head and secondly which shape of valves suits which type of ports.
The first part of this query relates to the port angle relative to the valve. In looking at...
I have an interest in trying ali skinned ali honeycomb panels as stiffeners in a simplified spaceframe structure. The panels are made from .5mm skins of 5052 Aluminium. The panel skins would be seperated from the core for 15mm around the edge of the panel and a 1mm 5052 square 'U' channel would...
In a brief conversation with another engineer it was reported that the principle advantage of port barrel throttles at part throttle was the biasing of the flow to one port wall and thus promoting tumble and good mixture distribution within the combustion chamber. In testing there was an...
