Problem with BMW engines, is the heads are made pretty big imo. if they where smaller, and with this V12, the intake flanges removed, not much left....
It's not so difficult if you know indeed. Bust most folks have no idea what to put in their engine. Then it's best to let the dealer sort it out. But factory advised oil, is not always the best. It's also depending if it's freezing winter or summer, then you need different oil. ( For stock engines, you can mainly always find the adviced multigrade oil in the book that was supplied with the car )
In the early days ( oldschool ) they did not have Multigrade oils.
But to make it easy there are 4 categories:
- Minarel
- Semi Synthetic
- Synthetic
- Full Synthetic
To read the Multigrade code:
...... W ......
Before the W: Thickness at cold engine
After the W: Thickness at operating temperature
The aerodynamic shape could be much better, airscoops are now good either. Air intake should be integrated into the bodyline, thus not disturbing the flow. Excessive spoilers aint no good either. I recommend you study more aerodynamics.
It certainly takes time. You can use alot less bondo, to get the job done, but that takes more time to smoothen it out, so the shops use excessive bondo to get the job done quick. Do it yourself is always good, that's the people that change the world, own innitiatives.
Yeah, he should restore it to it's original. No V8 in a Z, Just fix it, so far, and DRIVE it. With classic cars, I would not think of doing something like that, but some people do I guess.
When I see pictures of those big scrapyards in America, and even when you can find yourself a Z, makes me... smile.
Can't find it here in Europe. No way, gonna find a Z on scrapyard.
The ingredients are simple for an ferrari v8 for instance..
- not to big bore, small stroke.
- Double Overhead Camshafts, 4 valves the cilinder. ( 32 Valve )
- Low angle block V ( for revs )
- ITB's or carbs.
- High power igniton.
Well you know.... $$$$$
Did the engine run on the standard pump? If it didn't work at all, check the relais. If that doesn't help. Pull a + line from the battery to the pump with a switch.
Adam:
As I can make up from the story, you have to use the choke alot of times, this means your mixture is to lean. This can cause also the plugs to wear out.
I advice to check your carbs again ( take em off, clean and rebuild with new gaskets ). 93 fuel is okay, so is 91. L24 engine doesn't run high compression ratio.