Any tips or advise on the above. Iv adjusted the screw on top of diaphram 1 and a half turns.
I dont want to tamper too much till i get an EGT gauge and boost gauge
Tia..
Of course exactly what I did ...be careful not to lift the diaphragm too far as the pin will be very difficult to get back in.
How much is too much tho am scared with no egt gaugeI did the tweaks and it made a useful difference. The turbo starts producing boost earlier in the range than it did prior to adjustments. I can get EGTs on the limit so didn’t touch the main fuel screw. More fuelling will need an intercooler. Can’t remember how many turns I gave the off boost volume screw. Like the article says it’s just trial an error.
How much is too much tho am scared with no egt gauge
I wouldn’t chance the “wind it up till you see smoke and then wind it down a touch” I read an article by an Aussie tuner and you can apparently still get critically high egts without smoke in some conditions.
The way i see it is power is produced by efficiency so overfueling will sap power , so if you increase boost alone she will run lean and be down on power . So if you then nudge up the fuel screw in small increments - go for a drive power increase should be noticeable .
I did this on my 90 many times until i felt no improvement so turned the last nudge up down again , drove for a week to get used to things then nudged it up a little again and the improvement while slight was noted and so i accepted it was running at the most "efficient" burn i could hope for without fancy test equipment and left it at that .
A clean burn to avoid excessive heat is the goal me thinks .