Recent content by 928s

On a Porsche 928. That is a V8 Porsche. Cheers Greg

My valvetrain currently is hydraulic but i wish to convert to save weight. Cheers Greg

Thanks guys, looks like there is nothing like this in 35 mm, I may well just run my hydraulic lifters and lighten every thing else in the valve train. Many thanks Greg

Ed you are a wealth of information. any details on that 35 mm lifter? Like is it a solid lifter and light? The jag 4.0 uses a very light but unforntunately 33 mm lifter, it has an alloy body. You adjust it by shims. So any light or where to look for info much appreciated. Cheers Greg

Guys appreciate very much some info on the lifters in the V8 lexus, I'm chasing a lifter of lightweight and 35 mm diameter. If the lifters are smalller I would still like to know the size. What are the biggest lifts that are being run on these engines? Does anybody know the weight of one of...

Thanks Dass, I looking for some 35 mm in diameter. Cheers Greg

What is the diameter of these lifters please? I'm looking to use them in a different project. Thanks Greg

Thanks for the pic and its great it shows how it works in conjuction with the other parts of the valvetrain. What is the diameter of the valve lifter? The diameter of the lifter for the V8 engine that is. Thanks Greg

You are right in many ways Ed, I would just add that some engines have the capacity to be increased built into them in the factory when they are first made. Porsche thought of this when they made the 928 engine. They started off with 4.5 litres and went to 5.4 litres. The guys these days are...

I haven't bothered to do the math, seems the initiater of the thread not that fussed either, but you could weld the journal so that you could offset grind it exactly how much stroke you required, after welding you would then need to straighten the crank and hard chrome the journals. Cheers Greg

I'm sorry but you are wrong on all the points you make. As for the crank not being as strong, that is incorrect, a machined billet will always be stronger than a cheap high production forging, what type of forging is it anyway? There is two main types, also you are not taking into consideration...

How much do these engines weigh anyway? Thanks Greg

That's is an impressive setup, I would be hoping for more than 100 hp per liter. Have you got any headflow figures? I came to this board looking for a light high out put V8. I have a Porsche and the V8s are heavy and expensive to modify. They do however have brilliant heads when modified...

As to rod widths with Honda rods they vary, there is no standard sizing, just different sizes. Certainly just stay with 6 inch. The sizes I have seen are 0.820 0.835 0.840 0.880 0.904 0.940. Many choices, most of those rods are piston guided rods as apposed to crankshaft guided rods which are...

Thanks Rarson, I wouldn't worry too much about the stroke length. As long as you get the absolute longest rod in there you can you will be alright especially if you pay great attention to detail in respect to piston to bore clearance. Look at the the later of the Honda S2000 engines a crappy rod...