Thread: Street tuning

It doesnt really sound like you have anything to tune with. Adjusting the fuel pressure is not the way to adjust fuel trims at certain Rpm's. You dont have a wide band either so thats a no go. Also if you have a 4 bar ECU then you need to be running 4 bar.

When people say street tune they are not speaking about what your speaking about. What your talking about is adjusting stuff that people adjusted back in the 90's when things like the SAFC's, and Calum realtimes ect werent readily availible. If you want more power which in a nut shell it sounds like your trying to squeaze more out of the car. Turn the boost up. Dont go messing with your base timing, or your base fuel pressure.

Or if you want to leave the boost where its at and get the most out of it you need something that you can actually fine tune with. SOmething "realtime" so that you can adjust the timing and A/F ratios in the places it needs to be adjusted without having to adjust everything just to fix one spot.

well theres no problem with street tuning at all, but if you arent working with the right tools you can serious ruin you engine without even trying.

you can cut corners with everything else you want to do but cutting corners with tuning you are just asking for trouble PERIOD.

definitly agree with you cees

I LOVE HOW THESE PEOPLE THINK ADJUSTABLE FUEL PRESSURE REGULATORS ARE FOR TUNING LOL, THE ONLY PURPOSE OF THE ADJUSTABLE FUEL PRESSURE REGULATOR IS TO ADJUST 3 BAR OR 4 BAR PERIOD NOTHING ELSE.

the only thing that i had adjusted when my car was t25 was loosen the bolts on the coilpack and rotated it and the only reason why i did that was to make it idel better

When I had T25 and then T28 I always tuned on the street.
4bar FP to try not to max injectors, wideband and neo afc and it worked great for me, after that I went to the dyno to see how much power it was doing...

Tunning on the street is not bad but unless you have an aftermarket knock sensor you should mess too much with the timing...

In your case what are you using to tune?

Like someone said, trying to lower on increase the FP on a boosted car to try to adjust your A/F is just looking to blow up your shit, thats some old stuff used on stock cars.

so just keep my timing the same as it was when running NA and keep the FPR set to 4bar like the ECU is programed for...........That's pretty much what i was looking for. Thanks

If you have a calum basic your timing should already be in the ballpark of where it should be. Its not the same timing as on an N/A stock ECU...

yes for your sake, keep everything the same. if its running good, leave it go.

leave the base timing as the ECU is tuned for...
On N/A with stock ECU you can just advance the distributor to 18 grades, on boost you cannot/should not (unless tuned for it), so if you dont know, or you are not sure of what the ECU was tuned for I will say keep it at 15 degrees