Looking for Zetec 2.0 blacktop standard size steel crankshaft. Also jenvey supercharger inlet plenum before I start buying and or making one. Plenum
not the crank
Standard crank is only good for say 300bhp and thats as it's max. It's torque that kills them I know that but people seem to understand
300bhp better. Not going to superchage it without a safety margin and the steel crank will give me that.
Oil pump will have billet gears or dry sumped.
Well....I've been running mine at 300 ft lb & 397BHP in competition for several years now without a crank failure. But hey, if you want to
go higher than that you might need a steel crank.
Maybe going up to and possibly over the 8500rpm mark so steel will be the way to go. If I don't then standard crank will do as you say but to
give me the option if I want then steel.
If you want to run very high rpm then a steel crank is potentially needed. I don't know your plans for the supercharger for this but I would be
very surprised if you needed to get over 7500rpm to make the power you are talking about. At 7500rpm the stock crank will cope fine with over
400BHP.
However if you want to spend the dosh on a steel crank then that is your choice.
Supercharger is a ? What power are going for, what ecu etc etc.
The Jenvey plenum is an expensive piece of kit, I did mine with a back plate/spaces done by FlakMonkey (on here) and a Nissan GTiR plenum which are
available for around £50 2nd hand.
Would love to fit Jenvey inlet plenum but the cost of it? If not make my own either in Alu/stainles or Carbon. I think Carbon will win but wait and
see.
HD springs, that's interesting.
Going to use standard cams so no overlap and maybe no HD springs, but what cams did you use?.
1.8 Zetec flywheel which is a lot lighter than the standard 2.0 one.
Apart from the above pretty mutch the same as yours
Also the steel crank is only worth it if you take the engine to 8500rpm....which is 2500 rpm beyond what the cams are good for and 1000rpm after the
stock valve springs have given up.
The car was mapped at NMS last year and hard cut set at 8500rpm with soft cut at 8300rpm all on standard crank. It is running standard valve springs
but uprated cams and runs fine.
Jeff, don't give up. Different ways to do different things and both of us is neither right nor wrong in my book. We are not that far apart in
our engine builds, just slight tweaks here and there. I am not a fully fledged state of the art perfectionist F1 engine builder. More in-between James
May and Jeremy Clarkson, you know James with all the techy stuff and Clarkson with the big hammer. But I am willing to listen and get all the info
that I think I need then I will make my own mind up in the end as it’s my money.
I have thought long and hard on what engine to build and some people say use the Durabag engine because it’s better and I think so as well. The only
reason I ended up with a 2.0 Blacktop is that I was running 1.8 Zetec and most of the bits on the 1.8 fitted the Blacktop. The quest at the moment is
when the weather turns a bit grey (Nov/Dec) convert the engine from 195bhp to 300bhp minimum fire breathing dragon lol. I could just convert it into a
BEC and spend loads of money getting the weight off it but don’t want that route. I have thought about just building another FW style Westy but that’s
another storyline I’m still thinking about.
I think at the end of the day the engine will cost quite a bit to build just like yours as it’s not cheap nowadays. What will I do with it when I’m
bored? Sell the engine? Sell the car? I don’t know as I’ve seen a few high spec cars with high spec engines and the owners not getting what they put
into the project. Loss making exercise, you bet but I will enjoy the build and will enjoy the results.
