Billet aluminum 2L block

[djape1977]

lampredi design v8 quad cam? hmmm, heard that before... ferari?

[So Cal Mark]

the difference between copying an existing 4 cylinder and designing a V8 from the ground up is pretty staggering. Once the block is designed and machined, someone has to build a crankshaft to fit it

[fiatfactory]

.

[Redline]

I wonder what ever happened to the mental RST-V8?



That would fit nicely.

But I still think the 124 just needs a nice, wailing TC.

[fiatfactory]

.

[Redline]

I remember the Caterham Levante used it, but I was just wondering what became of the motor because there are very few reports on it since everyone got excited initially, including a non-finished blog on an RST-V8 conversion of an Elise... not much to read in the last 5 years.

Sounds soooooo good:

http://www.youtube.com/watch?v=Mx62obeje0o

[timinator]

I would assume that the machinist friend of Mark's was looking forward to other things that no one has yet touched upon. Since Mark is venturing into turbo setups maybe a 1/2 inch taller block with replaceable sleeves and 4 bolt, cross bolted main caps. Say a 3.0l @ 30psi boost making 600hp wih exsisting heads. Plus the added feature that it would bolt in the available space under the hood of a 124. Sounds doable to me.

[ClarkTheShark]

3.0 liter 4 cylinder? that thing would have to idle at 2200 rpm to stay running because of the imbalance. <-- this is a weak point with inline 4 cylinder. the pistons would have to be very heavy and the counterbalance would have to be much larger.

also, even if you stretch the stroke out .5 inches, you would have to bore it out to the point that the pistons are touching, or you have to increase the distance between the pistons, further hurting your imbalance issues.

Again, what really hurts our engines is volumetric efficiency. Its literally the best way to achieve power because you don't have to sacrifice anything for that power. its... free power. increasing displacement is nice and all, and it will raise the output. But increasing "VE" will increase output for free.

need 16v head for increase in VE.

[ChrisSRT]

the Porsche 968 was a 3.0L inline 4, been done before

[v6spider]

I like the whole aspect of the uniqueness of an all aluminum 2.0l twin cam.. But it seems like effort that could be put in a more cost effective direction. I have $4000 into my entire car.. Buick/Rover 215 C.I.D. aluminum v8 would be something to consider.. Although there are v6's that make more power..


Rob

[So Cal Mark]

I was thinking along the lines of a 3L Ford V6

[v6spider]

I was thinking along the lines of a 3L Ford V6

Ford's 3.0L v6 is pretty nice actually... I'm just not a Ford guy.. Hence the Chevy power plant.. I still stand by my opinion that the Chevy Vortec 4.3L V6 is the most HP per dollar...

Rob

[So Cal Mark]

I agree, just thinking about a front sump. 3L V6 with a rear flange to match the Fiat bellhousing to try to make it a bolt-in. All of this is mere speculation...

[v6spider]

I agree, just thinking about a front sump. 3L V6 with a rear flange to match the Fiat bellhousing to try to make it a bolt-in. All of this is mere speculation...

These were all things I thought of when I started my project over ten years ago. It certainly would make things easier if the engine were a front sump.. The other problem is the clearing of the steering box and idler arm. I could never find anything that would clear.. Which lead me to where I am now.. Lol

Cheers!
Rob

[narfire]

The 3.6L in my VW Passat has amazing power (280 hp in NA trim and 300 in European) Very narrow block and one piece dohc head. Moves my heavy 4motion wagon really well. Thinking it through though, the amount of wiring and sensors to make it work in a transplant would be daunting.