V6 Help!

[Doubt_Incarnate]

i heard alchohol atacks aluminum, is that true? i wanted to convert to alchohol but im too retarded to find any info, afters hours of searching...

[geoffinbc]

HUH?

My uncles team runs a Top Alcohol funny car. The block and heads are 100% billet aluminum. They run alcohol under 40 to 60 lbs of boost. So does every other team.

If Alcohol attacks aluminum then it must do it very slowly because they have had the same block for quite a few years. And who knows what ungodly amount of alcohol runs through that mechanical fuel injection system. It has 2 injectors at the top of the manifold and 2 injectors on each runner.

[smilinguy99]

i heard alchohol atacks aluminum, is that true? i wanted to convert to alchohol but im too retarded to find any info, afters hours of searching...

Here's a little primer on alcohol:

http://en.wikipedia.org/wiki/Methanol

Yes, eventually any basic (as in, acidic and basic) chemical will react with aluminum and evenutally will erode so much the structure is threatened.

Alk is nasty stuff tha requires some respect, and unless you are in a racing class that demands you use it or a class that you would be uncompetitive if you don't use it, I'd avoid it.

sg99

[Zerorsica]

Okay well that's some weird stuff. Granted I've never worked with 6000HP engines before, most I've ever worked on was maybe 600 at best (100% N/A).

So what would be the goal on a 2.8 V6 to need such a thing, 700HP? Or do our 60 degree V6 blocks fail after 300hp? Me gots some learnin' to be a doing lol

[smilinguy99]

Re: V6 Help!

I was wondering if the 350 rods that can be fitted in a V6, is a good choise for turbo chargin?? How mutch HP can they take??

And were I can get hold of:

Cylinder heads for turbo usage
A camshaft for turbo
Pistons for turbo (92mm same as the 3.4L)
High vol. Oilpump
Timing Chain for turbo
And cam rollers for turbo

It's going to be fitted in a 3.0L with twinturbo.

And a last thing... how mutch HP do you think I can get from a twinturbo 3.0L 60* V6????

Have a nice day...///Bjorkman.. =)

Well, the c-c on smallblock rods is the same as v660s, but you need to machine off something like .085" on one side and remachine the chamfer.

The alloy heads breathe better, but with a turbo that isn't much of a concern. I'd use the best steel (Gen I) heads I could find.

By 350 rods, I assume you mean production rods. I have one question, if you are going to spend the big bucks on a turbo and all this other stuff, why are you even thinking about 350 rods? Don't cheap out with a non-NA motor.

Forget about production parts. Get the most recent copy of Chevy Power. Use this to find out how to machine the SBC rods to fit the V660, and call Crower. Have them make some rods for you that are lighter and stronger than any production piece.

Here's a little piece of info about the V660: There are very few hipo parts made for this engine, but that's no reason to be discouraged. Some of the big MFGs make something for it and you can make the rest or have it custom made.

Really, I don't know what the hell you are talking about with this "Pistons for turbo (92mm same as the 3.4L)" stuff. Are you doing a destroked 3.4? Are you doing something like a .5mm overbore with a 2.8 crank? What are you doing? Hope you're not thinking of an overbored 2.8. You talk of a 3.0L...Huh?

Timing chain for turbo...hmmm...trying to be patient...until someone makes a belt drive for the V660, the Cloyes double roller stuff is it.

Consider a dry sump oiling system rather than a wet sump. This motor ain't oiled like a small block. It needs a constant, reliable supply of oil. Add to that the oil supply needs of the two turbos and you would be silly to even consider a wet sump.

This site actually has a lot of the information on it that you seek. Poke around and you'll see it. It's a good place to do your homework.

You want to know about making a turbo V660? You probably need to talk to Curtis. He's da man on turbo V660s.

sg99

[oil pan 4]

RE: Re: V6 Help!

I think you can put about 400hp through an iron block with out to much problem.

[geoffinbc]

The Alloy heads do flow the best and it will make a HUGE difference when under boost. Plug the numbers in DD2K for Iron and Aluminum heads and see the difference.

Just by doing a test on my (soon to be) supercharger ported iron heads (which are not as good as stock alloy heads) gained almost 60HP.

There is no need to spend big bucks on custom parts until you are ready to make serious numbers. Sub 300HP motors will fair quite well. Not everyone has or wants to spend huge money when its not needed. Stock rods are forged and very durable.

This motor (Well gen III anyway) is oiled exactly like a small block chevy. But Gen I and II are not.

[tha_SwEdE]

RE: V6 Help!

I still don't know were to get performance heads.. =S
I know ARI Racing have some.. are they any good??
And does it matter if I get alu or iron heads (in HP), if they are for performance use??

And this dry sump.. I'm been thinking of it..but don't really know if I need it.. not shore... =S

[Doubt_Incarnate]

with turbo charging, heat become a big factor, so block fill is probably a realy bad thing in that case.

performance heads are either what ever you found, or make. you'll have to port, or mod the heads yourself. thats about the only way, if you search for a whie you'll find some site, but there isnt much. i dont think bigger valves ae feasable in aluminum heads, but iron heads might be able to squeeze them in. and since airflow is power, you'll want the 3400sfi heads, or whatever the latest greatest is.

What kind of car are we talking about anyways? there are complications in the fwd/rwd swaps and such.

if its a camaro or s-10 iron heads are what they have and aluminum dosen't swap without some fabricating. the entire top half needs to be swapped between gens, not just heads.

[geoffinbc]

Just get stock 3400 heads. They are sweet as is. Slayed valves. The largest valves that can fit. D shaped exhaust ports. What else do you need?

If anything just clean them up with a slight port and polish.

[tha_SwEdE]

RE: V6 Help!

Oki..That sounds great... what is the size on the valves on the 3400 heads then??

[geoffinbc]

1.76,1.42

[oil pan 4]

When puting Al heads on a high power engine you could end up with duribility problems. These are stock casting not any thing like after martet Al SBC heads.
I thought about Al heads, that's a big no for what I want to do. You could get sealing problems with higher power engines.
The chevy power manual said to only use them when you have to save weight.
You can use them but I would not try to beat on them to much.
I want a motor that I can realy thrash and will come back for more every time.

[Guest]

When puting Al heads on a high power engine you could end up with duribility problems. These are stock casting not any thing like after martet Al SBC heads.
I thought about Al heads, that's a big no for what I want to do. You could get sealing problems with higher power engines.
The chevy power manual said to only use them when you have to save weight.
You can use them but I would not try to beat on them to much.
I want a motor that I can realy thrash and will come back for more every time.

That has YET to be proven though.

[geoffinbc]

Pfft they can take just about anything you can throw at them. Like raven says it has yet to be proven.

When boat companies are using them in supercharged applications then I would say they are durable enough. A boat motor is always under high stress. Water does not give you a break like tires rolling on pavement does.