12psi club
 

Well today I installed one of these boostcontrol. It has been sitting in my car for about a month now, and I built it a couple weeks before that. I've been putting it off because I'm probably going to kill myself, or the engine, or the trans.

After a couple hours of beating the shit out of my car tuning I had everything working pretty good. Now I can start seriously worrying about breaking stuff. Yay.

What boost level were you at before turning it up?

8psi

+1


I just joined the 12psi club....from 18 :giggle:. I just pulled in from redoing my VE table and the other day I reworked the spark table....it feels faster now than how it was before at 18psi. Toward the end of the season I'm going to turn it back up to maybe 15 or 16, but for now, I'm down for some reliable fun!

How does the difference in power feel?

I am at just under 8psi now. Unfortunately, I have some other issues to sort out before turning up the boost and joining the club.

should we start the paperwork for your induction to the "bent rods" or "fuxored oil ring" clubs yet?

Lulz. If he had said "I joined the 20psi club" on a stock motor, then sure thing. Don't make the guy nervous at perfectly fine boost levels :P

I concur....I feel like I'm being really conservative now at 12psi instead of 18-19 where I was.....:giggle:

15 psi is ok with a good tune on stock engine. your weak points are a bad tune, heat,and the 5 speed.

There was a pretty big difference between 8psi and 12psi. At 8 the acceleration was more linear. Now with 12psi I can really feel when boost hits. I'm excited. But already planning to kick it up again after the summer.

MOAR BOOSTZ

when my car was up and running i only got to experience 7psi. :cry: hopefully this time around ill be able to see 12-15psi.

12psi is cool for year 2003

If people keep talking about PSI.... I'm going to start punting some teeth in.

PSI :giggle:

lol doesn't it also depend on what turbo you have, EX: if u had a gt35r pushing 13psi as apposed to my t25 pushing 13... big difference no?

yeah, but its more than just the turbo as well if im not mistaken.

what's psi?

Right, size of charge pipes, I/c, Intake mani etc...

12 > 8. That is all that matters.

that's what she said

Turbo
Volumetric Efficiency
Displacement
Restrictions (IM, exhaust, TB, piping, air filter)

In essence it all boils down to mass flow rate (lb/min).

PSI is just a relative form of pressure ratio, which is only part of the equation.

I'm currently running at 12psi...which I'll admit is fun, but not nearly as much fun as FRTfun is having. That pressure ratio at redline on a 1.6L with my little peashooter is at the far edge of the efficiency island, over the 60% line. This yields a 1.4 DENSITY RATIO which is a much better determinant of power.

FRT has more displacement, and a turbo which flows more and is more efficient where we are operating...much more efficient. If you want to start a "12psi Club" I'd be happy to join and feel like I'm awesome...but if it were a "200whp+ Club" I'm afraid I'd be excluded, like I was through most of junior high.

8>12 if you're running 8psi on a GT30 and 12psi on a MSM IHI turbo :slap:

12>8 on MY car. Which, again, is what matters to ME. :D

+50

http://www.petsit.com/

haha ^^^

.8 bar?

eight and an eighth bar

I didn't quite make it to the 12psi club last time around
Attachment 198692

Tryin for 30psi this summer :skid:

And your givin me a ride!!

Me first :)

224 kpa

Will be there mid next week once I install the clutch....I hope :)

Started and broke in the new buid today, loved 7 psi and is begging me to join this club after i fix the pass side wheel bearing.

No worries, you will get a ride, I just have to make it out to one of these meets when the cars finished.

lol:laugh:

I might try and join you.
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote

DAMN you guys are nuts

only cars I know of running that kind of boost (and more) are dsm's, evo's, and supras

Yeah, and twice the horsepower.
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote

And weight ;)

Sweet :) we almost have the same set up. Im very tempted to buy the begi intake manifold but i dont know if its worth the hp gain or not.

Meh supras...i raced my buddies TT supra last year i was at 20lbs but not full throttle and i kept with him then i started back firing cause i wasnt tuned...but one time i pulled on him and he started making excuses that his intercooler piping came off or a cupling. I will get a video this year. Very tempted on buying some stickys for the track but im scared of snapping an axle. And in need of a 6 speed swap soon but no one around here has 6 speeds :(

You would be surprised. With the turbo tech now available for under 2K (great efficency and response even on crappy setups) and affordable forged parts all over, you see a lot of oddball high boost stuff nowadays in some areas. Shoot even the better sections of the Mustang community are commonly running 10-15 psig now, with plenty in the 20 range. Termie guys are pretty much all running high teens boost now, with a lot of the them and the Lightning guys (who are crazier and blow up more stuff than even the DSMers) running into the high 20s. One other group that will probably run really high comp ratios are the Genesis guys. Its basically got a weak version of the 4B11 in there :)

I am far from a noob when it comes to turbocharging, and my miata is not the 1st or even the 5th turbo car I've owned, so I'm aware of all the cool new shit out there nowadays.

My point remains: there are VERY FEW miata's running over 15psi on a larger turbo. Even fewer running over 20. Its just not a huge turbo/big boost type of car. That's why I'm surprised.


Oh and to the other guy trashing supra's: race a 600whp (very common power level to a modded one) to 140mph and come back and say that again. After 100mph he will absolutely sodomize you

not just Sodomize.....skull fucked too!

I'm all for big power miata's. Hell I'm planning on going big myself, but lets not get carried away and start badmouthing other cars that are highway monsters just yet.

im doing the same thing you are, right after i get a built engine! the setup that i am gonna run in the meantime will make me happy, but not for long!

go big or go home.... :giggle: