DevilSonic89
New member
So i been hearing people talk about this and i want to open it back up. So what do you guys and gals think about a supercharger in the 1.8??? yes or no?
SuperCharger for the 1.8????
- Thread starter DevilSonic89
- Start date
jim_de_hunter
New member
If I bought the 1.8 as a tuner, I would consider it. However, I bought it for it's gas mileage and 100,000 tune-ups so I don't think I'll buy and install one.
DevilSonic89
New member
ooooo...
i bought mine as a tuner. the gas mileage is a plus
lol
i bought mine as a tuner. the gas mileage is a plus
lol
rdss
Junior Member
Most of the time when you add a supercharger your pedal foot is your worst enemy for mileage. A good supercharger has an internal by-pass that allows for normal/no boost driving therefor no mileage change and sometimes you get better mileage like on the 1.4T's because of the improved tuning.
rdss
Junior Member
A turbo would be a lot easier I would think. The manifold or header would be a lot easier to have someone fab than a intake manifold to fit a roots supercharger and then the charge and intake pipes and a good tuner like Trifecta and you would be good (the simple things, you still might need a better fuel pump, injectors, etc.).
SSpeckerwood
New member
Do you think the 1.8L would hold up to such a power increase?
It's been said already in the other "should I/can I boost my 1.8?" threads and will be said again: Without changing internal engine components (big bucks), the most boost you will be able to run will be 5-8 pounds, and you will wind up with performance that doesn't really gain you much while voiding your engine and likely transmission warranty. In the end, the return on investment wouldn't be worth it.
SSpeckerwood
New member
careful.....
your treading on becoming labeled as a hater of the 1.8L, once again.
opcorn:
rdss
Junior Member
5-8psi of boost is better than no boost!! I think if I would have gotten the 1.8, first I would have thought about waiting for a 1.4L, the up charge is minimal for a turbo motor (750 I think vs. thousands), second I would be waiting for a couple of years for the warrenty to get closer to expireing then would look for a turbo/supercharger combo for it. This is what I am doing with my 5.3L Sierra.
laborsmith
New member
Six pounds of supercharged boost would be the equivalent of around twelve+ pounds of turbocharged boost. Engine internals should not need work.
The Eaton style supercharger sits on top of the engine requiring more intake work than a centrifugal and I suspect a different hood to allow for the additional height needed to add the supercharger. They also cost more, but do not need the bracketing a centrifugal does. With a centrifugal supercharger you also need an external bypass/blow off valve, and then you really get the sound of boost, but that additional $300 would bring the cost closer to the screw style.
I am not sure there is a screw (Eaton) style that would fit on top of either engine, so that may rule it out, where a centrifugal sits next to the engine, making that choice seem more feasible.
But if it was me, I would just trade the 1.8 in on a 1.4. And rather go through all the bracketing to supercharge a 1.4, just drop it and put in a 2.0t.
The latter would probably require a different hood, also. And a different tranny.
Ball park $ not confirmed by looking so just guesses:
Eaton style = $5000
Vortech style = $3500 + Blow off valve = $300
2.0T = $4500 + F40 tranny = $1500
Laborsmith
The Eaton style supercharger sits on top of the engine requiring more intake work than a centrifugal and I suspect a different hood to allow for the additional height needed to add the supercharger. They also cost more, but do not need the bracketing a centrifugal does. With a centrifugal supercharger you also need an external bypass/blow off valve, and then you really get the sound of boost, but that additional $300 would bring the cost closer to the screw style.
I am not sure there is a screw (Eaton) style that would fit on top of either engine, so that may rule it out, where a centrifugal sits next to the engine, making that choice seem more feasible.
But if it was me, I would just trade the 1.8 in on a 1.4. And rather go through all the bracketing to supercharge a 1.4, just drop it and put in a 2.0t.
The latter would probably require a different hood, also. And a different tranny.
Ball park $ not confirmed by looking so just guesses:
Eaton style = $5000
Vortech style = $3500 + Blow off valve = $300
2.0T = $4500 + F40 tranny = $1500
Laborsmith
lambertsonic
New member
a 2.0t swap would be the best route .
rdss
Junior Member
You have to add the cost of all the charge and inlet piping and a good intercooler to both the turbo and centrifugal set ups. The roots/Eaton would only need a intake and the after cooler is built in to the intake manifold under the supercharger on this set up and only needs coolant lines from to the radiator and pumps and a power source for the pump. There are a lot of plus' and minus' when it comes to trying to do a blower from scratch on a NA car, that's why it usually take some time for the aftermarket guys to build them with all the R/D that goes into it.
laborsmith
New member
You just summarized why I would trade in the 1.8 for the 1.4t or when it comes available drop either and and replace with the 2.0t.
Oh, you can successfully do the centrifugal w/o the intercooler; I did it. Of course I did the supercharged 2003 Cavalier to see if it could be done, and not because it was the most efficient way to go or the best use of resources. And in 2003 there was no factory option for a supercharged or a turbocharged Cavalier.
But the rest of your summary plus the brackets all adds up to a whole bunch of bucks. And with forced induction available as a $700 option, that to me is the way to go. But I do miss that supercharger whine.
Laborsmith
Oh, you can successfully do the centrifugal w/o the intercooler; I did it. Of course I did the supercharged 2003 Cavalier to see if it could be done, and not because it was the most efficient way to go or the best use of resources. And in 2003 there was no factory option for a supercharged or a turbocharged Cavalier.
But the rest of your summary plus the brackets all adds up to a whole bunch of bucks. And with forced induction available as a $700 option, that to me is the way to go. But I do miss that supercharger whine.
Laborsmith
lambertsonic
New member
you guys are lucky in the us , the only way to get the turbo here is to buy the LTZ and it would of cost me north of 20,000$ before tax . I am not sure why they don't offer the turbo option on the LT trim .
laborsmith
New member
The Canadian Sonic levels and option packages do not compare 1 for 1 with the USA's. Not that I disagree with your assessment regarding the turbo being restricted, it is just that there are significant differences.
Laborsmith
Laborsmith
