by this question i was thinking what is the stock for a second gen RX-7 becuz i not sure what it would be pushing. is 12 lbs boost realistic? im absolutely lost...

 

I'd suggest asking in the 2nd Gen Forum. A search may provide the answer as well.

 

Series 4, 87-88: 5.5 psi
Series 5, 89-92: 7.5 psi

12 psi is possible with the proper mods!

 

According to the FSMs, peak boost is 6.56psi for the S4 and 8.25psi for the S5. In stock form, neither will hold this all the way to redline, which may explain why people keep quoting the figures above.

 

I've pushed 15

 

I neeeeed more fuel

 

im using about 8psi on low and 14 psi on high. 14 psi at the limit of the stock injecters

 

Mine spikes to about 14psi then settles at about 12psi. I use a manual boost controller, to increase the boost to these levels.

Without the boost controller I was getting about 5-6psi, which I think was reduced over stock because the stock IC is front mounted with some pretty twisty IC piping, causing a pressure drop.

 

12 lbs boost is VERY realistic. You're only a down pipe, mid pipe, and a cat-back away! Make sure and do your fuel mods or you'll pop your engine.

Steve

 

How much CC's are ur stock injectors? Becuz the ones that come with the car i am buying are 550cc injectors...

 

stock are 550, and at 14 psi you should probably have bigger injectors, and definitly have some sort of fuel management controller, s-afc, a chip, etc.

 

you have pushed 15psi & 14psi , 12psi ? what the hell is this? all of these #s just flat suck. i'm not being a *** .. but i'm always hereing all this low boost crap. i've put my auto meter past the 20psi markwith no probs. Sorry for sounding x.

 

no offecnce but your HP number sucks LOL at 10psi with stock ports you should be making more then that.

 

You're not doing anything but pumping super heated hot air into the engine after ~15 psi. And a big turbo pushing 6 psi will generate more power than your stock turbo at 20psi.

Steve