I was siting around today with nothing better to do and i came up with a reall kick *** setup idea ( well kick *** in my oppinion) so yea i thought why not have a big turbo on one side and to counter act the turbo lag a nice super (eaton possibly heard they where fairly cheep) and to top it off a nice 75 shot of nos to get the ball rolling... well even thou i gave it alot of thought does anyone think that i will have problems with getting this set up..... i know my compresion is going to be really high but i kinda wanted to throw in some nos just for the hell of it any coments would be greatly appricated


oh and i know someones going to ask so carbed 350 forged internals (still in the planing stages so if anyone can think of a beter moter let me know before i go and waste my money

 

Blower + tubo is a popular way to go with military engines, particulary diesels that you can boost to the moon without fear of detonation (Diesels basically run in detonation 100% of the time, ayway).

It's expensive is one drawback.

Tuning it to run correctly under all conditions would be another. At least for me: a semi-serious hobbyist.

And it would weigh a ton with all that stuff, too.

 

If you really want to counteract turbo lag, I would use a roots blower. The roots makes heavy boost right off the line, whereas a centrifugal blower makes very low boosts at low RMP. With it's compounded gear ratios, the boost level goes up exponentially in relation to RPM.

Back to your idea, it would be rediculously expensive, and a little redundant, really. Why have three small power adders, when you can get the same power for less money with one or maybe even two.

The idea of forced induction and N2O is a great one. The cold shot of N2O does a great job of cooling the intake charge, thus fighting detonation. What's funny is, everyone wants to fight turbo lag and get breakneck pull off the line, but the fact is, when you start making huge amounts of power, the launch is the time when you want to hold back on all that power, then, with the tires firmly planted, you unleash the serious power. That is why huge N2O systems use computers to hold back the shot.

A common solution to traction problems is to simply add bigger slicks. Then, however, there is more stress on other parts of the drivetrain. Axles, driveshafts, clutches, the more power at the launch, the more parts start to go.

I say, you could make the most power, with the least drivetrain mods, with a N2O/turbo combo. Come off the line on a heathy shot, then the turbo will spool up and knock your socks off.

But if you did have the money to do the drivetrain right, a carbed, juiced, and roots blown 350 would be one hell of a ride (and could prove for some wheel-standing fun).

Personally my plan is for a super strong 350 with enough dual-staged juice to choke a horse.

 

If you use a rev limiter, you can launch while in boost so there is almost no turbo lag.

 

the rev limiter sounds like a good idea i was just tryin to go in a direction that i havent seen, lol now i see why ive never seen it well back to the drawing board i guess ill just go a dual turbo set up but whats more expencive turbo charger or super charger? cuase i could always try the dual super charger setup like saturn5 but thanx for the imput

 

I vote for the dual supercharger, you would save a lot of cost and fabrication.

 

yea thats basicly what i thought thanx for all the help what kind of super charger should i go with in a dual set up im still allttle confused about it

 

I've heard of people using small nitrous shots to spool there turbos up quicker, don't know how that would work though?

 

There are all sorts of ways to spool a turbo faster, but when it comes down to it, within reason you should be able to size the turbine to spool reasonably well except possibly at the very extreme. In a drag race setup there are a few ways to get it to spool faster off the line including trans brakes, higher stall converters and using N2O off the line (extra punch at low boost which has the side effect of producing more exhaust which spools the turbo), and I know of some road racers that use a jet mounted at in the turbo housing to spray pressurized CO2 to spool the turbo on shifts and coming off the corners (with a push button on the shifter or steering wheel). Cadillac programmed some of their race cars to dump fuel on the shifts to spool the turbos up better (reason you see flames shooting out of the tailpipes on shifts), and I’ve seen rally cars doing the same. Ford even has a setup that uses an electric motor on the turbine shaft that spins up the turbo (with programming that anticipates when you’ll need it) to overcome the initial inertia needed to spool it at low rpm’s.