I currently have a Pcs-1 procharger and I get just over 6 psi boost, with that being said, I was wondering, what if i were to get some high end headers, weld a turbo flange at the back, and cut out the cats, would the supercharger and the turbo try to fight eachouther??? I just dunno. I will in the end wind up with a custom twin turbo set up, I just need to know if the super can stay?

 

It sounds like a waste of money to me. Your just going to screw **** up trying to get it to work right. And your stock bottom end isnt going to take much more boos tthan that 6lbs anyways.

If you want turbos, start saving now cuase they AINT cheap.

 

Unless you have endless cash, and endless time for development, in the end, just want to see what it does, then go for it. Get ready. You'll be on an at least 6-8 months if everything goes right, just to get horsepower you can easily achieve with either blower or turbo by itself. How much money are you really willing to spend, and how much HP do you realistically want?

 

Money is no issue, I know about the bottom end needing build up... I already have that taken care of. I have no real horsepower goals... I suppose that I will wound up with 700 plus... I plan to run around 15 psi boost... and I have had countless issues with the supercharger belt... I have finally got it to stop slipping and I figured that, because the super is pushing air in, thusly increasing the exhuast flow, y not slap a (or 2) turbos on to take advantage of the excess exhaust flow... sounded like a good Idea to me... The exuast would make any turbo spool up quicker than stock... and that is what I was thinking... I have the resources financially as well as shops around where I live to do it all, I just dont want it to be a waste of time... As far as the fuel... Ialready have 42lb/hr injectors...

please reply!

Thanks!

 

First of all, 42 lb injectors won't get you there. What you're talking about is in the range of 72+ lb/hr low-impedence injectors and FAST or an impedence converter.

Secondly, the turbo's will not fit where the cat's were. There's just not enough vertical height.

3rd, KISS principle. The less power adders, the more reliable it will be, easier to work on, easier to tune. There are LT1 cars in the 8's (dang near 7's) with a single power adder. You think you need more than that? It's hard enough to sort out 1 power adder. . . I'm still tinkering with my single turbo after about 2 years.

4th, turbo's are very difficult to install. Installing them with a supercharger will be even worse.

In short, yes, the concept is valid. However, it is impractical and will probably never run right or be reliable.

Mike

 

^ What he said ...

And heres my thoughts on the exhaust flow ordeal ...

Your blower (As long as its adequate, ie. D1SC or bigger ) will have no problem supplying 15PSI or more. On the correct set up, with the blower as the single power adder, your looking at an easy 700RWHP set up if you wanted to do so. Adding a Turbo on to it is just going to RESTRICT exhaust flow over what the standard header primaries can flow. The turbine does cause resistance to flow. That resistance is what builds up pressure on the "hot" side of it, and forces it to spin, which makes you your boost.

Plus trying to tie your turboes into the blower set up and keep it intercooled, etc. and at the right boost levels is gonna be a bitch. Not really worth it.

I say fix your slipping belt issue and stick with what you have. A solid blower car can definatly make the numbers you want out of it.

 

generally the only reason to run compound compressors is when running VERY high pressure ratios to keep each compressor in their highest efficiency islands.

 

The supercharger\turbo combo is done a few times on four bangers, but even after countless head gaskets, and bent rods later, I seen half of those guys just put a big turbo, and have more horse power by itself vs. the blower\turbo combo. So just throw a T-76 on it with a FAST computer, 72lbs inj, and be done with it. You already said you have the bottomend, so address your tranny, and rearend, and call it a day. No need to trail blaze to get nowhere. Take it easy.

 

Thanks people! thanks a bunch!!