Well I just picked up a P1-SC Procharger head unit for my 383. Only thing is, it's a 10.6:1 motor but I think I could reliably run 4-6lbs if intercooled right. I went back and fouth about it, but since decided to do it since the Lt1s are 10.5:1 and Prochager makes a 7-9lbs kits for them, plus, I have a little more cam and a stand alone ECU that I can tune with my laptop, which I'm pretty good at by the way. I just wanted to get some tips or opinions before I actually buy the odds and ends and bolt everthing on.

Tom

 

If you do that, make sure you also do water or alky injection. Otherwise convert to run E85 all the time and forgetaboutit.

4-6 might be doable, but really pushing it even with an IC in warm weather. However, that's not coming from personal experience with that particular setup so take it with a grain of salt.

I'd personally just go through the trouble of lowering the compression to run more boost.

 

Huh, ever notice how all the LT1’s with superchargers blow up within a year or so?

There’s only 2 good ways of running boost with high compression:
- on race gas or alcohol
- sized to only work past it’s usable RPM range NA so you’re adding cylinder pressure after it has already begun to drop off, not adding to the peak cylinder pressure, of course, most small block rotating assemblies are not beefy enough to rev much higher then what they were built for originally anyway…

 

You can run that kind of compression but you will have to be very carefull. You would need to back the timing quite a bit and richen it up enough for there to be a good cooling effect off the fuel, and intercooled. Once you do that and run only 4psi(would not do more) of boost you will negate the whole use of the blower. You will make a little more power but at what cost (a ticking time bomb). You would have probably been ahead by doing some standard hot rodding (head work etc).

Now you want to use methanol or race fuel then everything goes out the door. :-)

 

Well the headwork is mainly done considering they are already 195 AFR's. I think the next thing I'm gonna do is start looking in to retarding that cam a bit. I'll have to plug some number into DD2000 and see what is does to cylinder pressures within my RPM range.

Tom

 

What about e-85 ive been trying to figure out if that would be feasible but it would use a **** ton of fuel but its cheaper than race gas and should burn cool cause its alcohol i just dont know enough about it right now to figure out the logistics of it

 

Yes, E85 is 85% alcohol (ethanol), so that's technically included with what he said.

In short, yes it's feasible if you have the fuel support and the ability to tune for it, and yes it works insanely better than normal pump gas. If you want to learn more, read through this (DSM) thread and all of it's links, there is a ton of info there.

DSMtalk Forums - E85: 105 octane, cheaper, and American made

 

Should I comment on the DSM guys praising something for being American made?

The politics behind E85 sucks *** but I could see myself getting with it in my “toy” if they really do keep the octane numbers up.

 

Why? DSM's were fully assembled in America, by Americans. The drivetrain is foreign, but pretty much the rest of the cars were made here, the design came from both sides. They weren't even sold in Japan, and they were exported out of America to sell to Canada, Europe and the like, and my Eagle has dealer parts that come in boxes labeled "Mopar" (:P). Most of us are Americans who live in America, and like to support our country. What's to comment on?

I agree, the politics are ridiculous. Hopefully good sense will win over, whichever side that happens to be on.
I never even thought about them killing off the octane, but if it becomes mainstream I could see them mixing in 15% of super low-grade sludge to bring it down to current crap octane levels to save on cost. That would really **** me off.