7 BOUND

hey guys i was told not to go over 13.2 psi on stock intern, what do you think?, i have a PFC that will have the base map in it but i have an ARC RACE SPEC IC, smic , dem. H 12 x core 13.5 x thick 4 in. since i have not done my fuel mods yet can the stock parts support 12 psi i know 10 is ok thanks

turbojeff

iTrader: (30)

Base maps run LEANER than stock.

7 BOUND

how much leaner is it safe and if i use a data logit can i richen it up some to make up for it, i know there 2 diff types of maps are you saying that both will run lean

rynberg

You will most likely have to richen up the map to be safe with a full exhaust....not just at 12 psi either. The PFC base map IS leaner than the stock ecu's map at 10 psi (there are NOT two PFC base maps, any PFC shipped in the last 3-4 years has the "base mod" map).

To answer the original question, you can run up to 13-14 psi on the stock fuel system with a safely tuned car, but you will be maxing out the injectors.

turbojeff

iTrader: (30)

Really it is a BAD idea, especially with your single turbo, etc to run with any maps that have not been tuned for your car.

quicksilver_rx7

I'm running 13 psi on PFC, DP, Adam C cold air, stock IC, stock exhaust, emissions removed. My AFR's were about 12.0:1 on the dyno. Here's the chart.

rynberg

Oh ****, I did not see the T-78 before.....

7Bound: Listen to Jeff....you should not be even boosting on the base map with the T-78....you'll need to load a very safe map to start with and tune from there, starting with vacuum into low boost, before moving on to higher boost levels.

And I doubt you can run much more than 10-11 psi on the stock fuel system with the T-78.

quicksilver_rx7

Welp, disregard my post. My setup is using stock twins.

7 BOUND

oh ok wow thanks guys, im glad i asked before i went and blew my engine, if you can belive this im at 122,000 miles on the oem engine so i think ill stay around 10psi until i get the engine rebuilt but im going to keep going until i blow lol thanks again guys

7 BOUND

since no one has bitten on the ARC RACE SPEC IC im going to keep it and i just wanted to ask you guys is putting the smic in with boosting 10psi is that ok i tried to do a search but nothing got random stuff thanks again guys, oh yea guys i dont have the t-78 in im waintng to get the engine rebuilt

saxyman990

If you don't have it, then don't put it in your damn mod-list!!! Who the heck are you trying to impress? By posting an incorrect mod-list, it makes it much harder for us to accurately give you the information that you're requesting.

-Rob

luizajeff

I wouldn't go until you blow your engine. It's cheaper to have it rebuilt when in good shape. You blow it and you could spend lots more for the same result.

7 BOUND

heyyyyyy sax man calm your nerves first of all i listed the things i DO have for my FD when i said will i be safe i didnt say that i had the t-78 man, so please press on, if you dont have anything positive to say then kepp moving, you waisted all your time with saying that and it ment nothing hahahah