So upgrade turbo or find safe way to increase boost?

sfalexi

Member
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2008 Mazdaspeed 3
Just gathering info for the far future (looking at least a year from now).

I see lots of people increasing their boost pressure, and I just saw a post from Diver311 running 22 boost planning on 24 psi on his stock turbo. This is all chinese to me, but I'm thinking it'd be safer (albeit maybe a little more costly) just to buy a larger turbo for the same performance increase but with less . . . uh . . . for lack of a better word, "danger" of your turbo blowing up? Or is it a problem with the engine that needs to be monitored? In which case, what's the point of the larger turbo?

Just broadcasting my thoughts/questions before I go to sleep for the night.

Alexi
 
the point of a bigger turbo is more efficient power.
If the stock turbo is capable of boosting that many psis then ti should be fine.
I'm sure driver311 will eventually dyno and see whether or not its beneficial or not to boost that much, hes usually pretty good about proving stuff.

Wait to get ems before upgrading your turbo. That's all I can say.

How much power do you even want to make? and whats all done to your car? Theres a lot fo stuff you can do before you need to throw a new turbo on it.
 
Soon enough I will find the limit of this turbo. Pump gas and race gas. I plan on turning it up until it stops making power. I pretty sure I have all the fuel I need for this turbo. 22psi really isnt that high. You guys gotta remember this car runs 15psi stock so 7psi really isnt that much more. I ran 24psi on my evo and srt every ******* day and never any problmes. Dont be so scared of boost, its your friend if used properly. LOL
 
all that is, is speculation. a big fmic helps that alot and the torque alone is worth it. You bring your 18-20psi and Ill show you what 23psi will to it. Game over. Trust me Ive done it and your only guessing. Thats the difference between guys like me and guys like you. I dont guess i find out for myself.
 
all that is, is speculation. a big fmic helps that alot and the torque alone is worth it. You bring your 18-20psi and Ill show you what 23psi will to it. Game over. Trust me Ive done it and your only guessing. Thats the difference between guys like me and guys like you. I dont guess i find out for myself.

truth.com
 
Some of us can't offord to chance pushing our cars that hard on the chance something may happen. Hats off to you for letting us know our limits.
 
OK... whats up with a turbo upgrade? Why is getting a little bigger turbo a bad idea?

My turbo is a smoker and Ive got every power mod available on my car.... so my warranty is toast. Its gonna be out of pocket so..... It is the next reasonable step. All you really need is fuel right? I mean to boost around 24-25 with an upgrade.... What should i expect then?

I ve got the standback.. But I plan on getting AP and keeping the CPE on the car. A reflash from Cobb and then continue tweaking with the standback. Im going on the premise that the engine internals should support around 350-375ish, and the only way to get there is with a bigger turbo.

What am I missing?
 
all that is, is speculation. a big fmic helps that alot and the torque alone is worth it. You bring your 18-20psi and Ill show you what 23psi will to it. Game over. Trust me Ive done it and your only guessing. Thats the difference between guys like me and guys like you. I dont guess i find out for myself.


Prove me wrong with some dyno's and intake temps at different levels of boost. Do you have a FMIC?
 
OK... whats up with a turbo upgrade? Why is getting a little bigger turbo a bad idea?

Is not a bad idea. You'll make more hp with less boost with a turbo upgrade. The only problem is that the new turbo will take about 500rpm more to start boosting, if you go with the gt3071. But if you get the pg turbo manifold it will probably start boosting like the stock unit.
 
stay stock . if this turbo can push 24 that is plenty of psi for this motor i believe unless ur going to shoot for the moon and get 500-600 whp

- o yea and driver is pushing 22 psi spiking at 24 so thats good news and dynos are gona make every ms3 owner poop themselves...especially the caliber forums YES!
 
So now what about those upgraded parts to the turbos like an inlet? Also, would it be more 'stable' and safe to put a larger turbo on it and keep the boost pressure lower? For instance, I see a lot of people saying that a gt30 turbo would make more horsepower with less boost pressure than the stock turbo. So would that mean it'd be safer for my engine?
 
Soon enough I will find the limit of this turbo. Pump gas and race gas. I plan on turning it up until it stops making power. I pretty sure I have all the fuel I need for this turbo. 22psi really isnt that high. You guys gotta remember this car runs 15psi stock so 7psi really isnt that much more. I ran 24psi on my evo and srt every ******* day and never any problmes. Dont be so scared of boost, its your friend if used properly. LOL

Are you at all concerned about your bottom end? I know that there have been MS6's that have blown, but in most cases, they were either untuned, not monitoring boost/AF ratios, or upgrading turbos. I guess my question is, has anyone drawn a line in the sand to say that with a certain amount of torque, you are getting into "Blown Rod Territory"?
 
Or you could add water/meth to your car and be very safe when turning up the boost. I'm telling you, it cools everything down and will keep the detonation monster away.
 
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