Looking for answers for what makes a turbo spool quickly.
One thing no one mentioned is the TUNE. Your tune can have great affect on your spool. NorcalSTRrida touched on this with EGT's.
Parts that will help your turbo spool are TBE with TP, LICP, UICP, intake and of course going to a bigger motor like a 2.3 or 2.4
Parts that will help your turbo spool are TBE with TP, LICP, UICP, intake and of course going to a bigger motor like a 2.3 or 2.4
Well this may be a noob question but I haven't been able to find anything searching the forums. Well nothing that answers the question with any facts, or reasons why it spools more quickly. I mean obviously I know a big giant turbo will spool later than a smaller turbo, but what can you do to make a giant turbo spool more quickly?
What factors affect a turbo's rate of spool. Or when it starts to fully boost. I know airflow plays a factor, the size of the turbo and wheels, ball bearings, ect ect.
So, what can you do to make a motor/turbo that'll spool as quick as possible?
Any insight would be great.
Again looking more for why a turbo will spool quicker rather than just a dyno plot of a fp red spooling quicker than a GT42R...
What factors affect a turbo's rate of spool. Or when it starts to fully boost. I know airflow plays a factor, the size of the turbo and wheels, ball bearings, ect ect.
So, what can you do to make a motor/turbo that'll spool as quick as possible?
Any insight would be great.
Again looking more for why a turbo will spool quicker rather than just a dyno plot of a fp red spooling quicker than a GT42R...
Mike Huml
LR2.4 FTW Mikey
Here is a little info on Twin Scroll.
http://www.modified.com/tech/modp-09...ign/index.html
Long story short pairing cylinders that are 2 stroke out of phase keeps out some of the small pressure drop associated with connecting them in line.
Some of the other items discussed here all relate to trying to reduce the rotational inertia of the turbo rotating assembly, increasing it's efficiency at compressing air, speeding up exhaust flow powering the turbo, or reducing the volume to be pressurized. The turbo itself is increasing the pressure of your intake system and the more you cool it the less density and the more time to required to spool (thought the advantage is usually more power).
Hope that helps a little.
What spools a turbo is exhaust pulse energy. The intensity of that energy is largely governed by pressure and heat. Each exhaust pulse is like a high pressure sound wave that travels along the walls of the exhaust port, manifold, and turbine housing, on its way to the turbine. This is important, because any abrupt changes in the diameter of those walls, or any place where the exhaust pulse makes a sharp turn or gets reflected, results in a loss of energy, and that impacts spool performance.
This being the case, getting the best possible spool characteristics begins with fundamentally sound exhaust system design. Some compromises must be made in designing a manifold that works with the factory EVOs turbo configuration, and some pulse energy loss is unavoidable with conventional T3 and T4 style turbine housings, especially open housings.
Originally Posted by ElectrIX Blue
You really need to do more research
1. Show me a test where going from a stock to larger than stock intercooler decreases spool time.
2. Show me a test where going from a stock to larger than stock intake manfiold decreases spool time.
Any time you increase the size of anything between the turbo outlet and intake port it usually results in increased spool time. There are countless tests of stock vs after market intake manifolds causing this.
Think about it logically, bigger piping/intercooler/intake manifold is going to take more time to fill than a smaller one.
Scorke
Scorke, why are you quoting what I said? You are wrong on the 02 housing so there is no need for you to quote what I wrote to you then try to make your case, because you are WRONG.
Mikey
Mikey
