RX7Kid

With Stock TII i was pretty happy. I have a downpipe and corksport exaust. I was at 15 pounds of boost.

Funklord

good time, but full exhaust and 15lbs of boost isnt exactly stock .
btw, your engine will die very soon if you keep running it at 15psi. the stock fuel system will not support that much boost, not to mention the fact that the turbo and intercooler are only good for about 10psi. 15lbs on an otherwise stock car is a ticking timebomb.

jspecracer7

15 psi and no fuel enrichment? Good run, but it would be better with some fuel...You can't run that if you're engine is BLOWN

Scott 89t2

that's very low for 15psi... and as above it won't last very long at all at the amount.

BoostedRotors

fuel fuel fuel fuel etc.

Samps

at 15lbs of boost shouldn't a T2 be running better than 14.5?

jspecracer7

Yes...but he has no fuel to support it.

darkwaveboi

i thought the stock turbo just blew hot air past 12psi...:?:

jon88se

when it first boosts up power should be nice, but it must really die as the car revs since his fuel curve is leaning out. 15psi on a healthy fuel systm should net far better times than a 14.5

boostmotorsport

Fuel, or not isnt the stock turbo pushing such hot air, as to nullify HP gains beyond 12LBS? That has always been my understanding.

Ryde _Or_Die

Thats prolly why he got a 14.5 instead of a 13.5.

CanadianRX7

That boost seems pretty high with your mods..were u trying to read the stock boost gauge or do u have a aftermarket one???

RETed

I think I can give you some first hand experience, cause I've done all of those crazy things.

12psi is the SAFE level of boost you should be running.

Of course, there are people that don't listen, including myself - just to see if it's possible.

I've been running 14psi-15psi of boost over the past 2 years with no obvious ill effects.&nbsp The engine (and intercooler) will only tolerate this for a very short period (less than 10 seconds) before the intake temps soar through the roof (I do have an EGT).&nbsp The power difference between 12psi and 15pis is significant.

I've run it up to 17psi, just to see if the turbo can handle it.&nbsp It can.&nbsp The oil seals blew in two weeks shortly thereafter.&nbsp How did the power feel?&nbsp Like jumping from 12psi to 15psi - it was significant.&nbsp Too bad the seals (in my experience) don't last.

Yes, you're probably running way over the efficiency of the turbo.&nbsp Yes, you will get more power (in my experience).&nbsp No, I don't recommend it.


-Ted

RX7Kid

I have A Safc and a fuel pump ant it is rich i have a dyno so i know what is going on , i have a autometer boost gauge it is 2 psi off so it is 13 or so. I am going to try 18 if i can get it we will see. I have injectors too.

easy p-cheesy

and this is stock how?!?!

VetteKiller

I think he meant stock turbo, not that the whole car was stock.

pip

14.5 et with 125 mph trap speed
Seriosuly all I can come up with is learn how to drive that beast.

RXSETH

There is no way you ran a 14.5 at 125 miles an hour. I have an 88 turbo II with a racing beat exhuast and hks intake and ran 14.0 at 99.35 miles an hour with 10 pounds of boost.