TURBO VS. SUPERCHARGER
Originally Posted by duboseq
Yes and no, depending on what turbo size you go with. Turbos have an
efficiency range they work in for example a t25 turbo will be better for
someone that wants more power down low in the rpm band because it has
a smaller compressor and turbine thus giving it a quicker spool.
This would be ideal for a engine which doesnt get busy before 4000 rpms.
The only draw back is in the higher rpms that turbo would not be efficient
any more which wouldnt matter too much if your engine is better in the higher rpm range.
Now if you want to see gains in the higher rpms get a bigger turbo. You
could possibly get a good pull all the way to redline depending on how its
tuned however you will run into turbo lag.
But if your engine is torquey down low then you will be ok.
A boost controler can help by giving you full boost
sooner . Its all in how your set up is tuned.
Overall you can get more gains (TQ/HP) with a turbo setup but with a blower
you see the power sooner because it is belt driven and you dont have to wait
for the exhaust gases turn the turbine wheel.
efficiency range they work in for example a t25 turbo will be better for
someone that wants more power down low in the rpm band because it has
a smaller compressor and turbine thus giving it a quicker spool.
This would be ideal for a engine which doesnt get busy before 4000 rpms.
The only draw back is in the higher rpms that turbo would not be efficient
any more which wouldnt matter too much if your engine is better in the higher rpm range.
Now if you want to see gains in the higher rpms get a bigger turbo. You
could possibly get a good pull all the way to redline depending on how its
tuned however you will run into turbo lag.
But if your engine is torquey down low then you will be ok.
A boost controler can help by giving you full boost
sooner . Its all in how your set up is tuned.
Overall you can get more gains (TQ/HP) with a turbo setup but with a blower
you see the power sooner because it is belt driven and you dont have to wait
for the exhaust gases turn the turbine wheel.
Last edited by DomesticRice; Apr 7, 2004 at 08:42 AM.
it's a 4banger? so go turbo. you'll loose atleast 1/3 the power your produce with a supercharger. so if it says you gain 50hp you dont get all 50hp. it's like people say removing the ac gives more power. not neccisarily the power was already there. your engine now just has less rotating mass causeing the power to be less restricted. so i'd go turbo you can get the same results as a supercharger but you can in the end get more out of a turbo. if you use the right turbo set-up you can get a quik spool with big power
as was said before t25's have a quik spool time but max power is limited. i have seen a t25/28 hybrid turbo spool quik as shit and have an abudance of power. i think he ran into the 10's on his b16 hatch with that turbo.
A boost controller doesnt really control when you will get full boost but how much boost you will get. Sure if you set the boost controller at 2psi you will reach full boost sooner but you will have no power.
Turbos do not require more maintenance. Turbos can last well over 100k miles because we see this on production vehicles. When installing a turbo kit dont half-ass it and there will be no problems. Turbos dont have belt slipping problems because there is no belt.
People with v-8s have had problems with bearing wear on the front main caps because of the tension from the belt. Sometimes people have lost harmonic balancers or snapped the crank because of the belt.
If yall really want to learn about turbo systems go and get a book called Maximum Boost by Corky Bell.
Turbos do not require more maintenance. Turbos can last well over 100k miles because we see this on production vehicles. When installing a turbo kit dont half-ass it and there will be no problems. Turbos dont have belt slipping problems because there is no belt.
People with v-8s have had problems with bearing wear on the front main caps because of the tension from the belt. Sometimes people have lost harmonic balancers or snapped the crank because of the belt.
If yall really want to learn about turbo systems go and get a book called Maximum Boost by Corky Bell.
Last edited by DomesticRice; Apr 7, 2004 at 09:16 AM.
all depends on how much money you want to spend and how fast you want to go. when dealing with high boost you are going to have to change alot of things in you engine if you dont want to blow the motor, and if you want your turbo to be effective. i.e. fuel delivery, compression, engine management.
Originally Posted by Bomexac
all depends on how much money you want to spend and how fast you want to go. when dealing with high boost you are going to have to change alot of things in you engine if you dont want to blow the motor, and if you want your turbo to be effective. i.e. fuel delivery, compression, engine management.
It basically boils down to: what car/engine; what your goals are; how reliable you want it to be; and how much do you want to spend. With some cars, you can just slap a supercharger right on, but a turbo would need ECU and fuel upgrades. Sometimes the power of a turbo just outweighs a supercharger.







