Advice on safe boost to suit maf issue
Hi guys,
Bit of long one here, sorry about that. I've done a search and can't find anything relative.
Bit of background, 2000 zd30 patrol, auto, 270,000kms.
Mods
Provent, new maf, egr block, inlet clean, Full nads setup, ecutalk and uafc voltage modifier.
Basically my issue is:
Tested the maf and voltage was out of spec so replaced it with a new genuine one.
That didn't really seem to help.
I got it really cheap as it kept going into limp mode. Did the full nads on it along with boost and egt gauge.
When setting up the nads setup I followed the directions from northern 4x4 but with max boost set at 16psi and boost at 100kph about 9-10psi it kept going into limp mode. Egts would get up to about 500 by 0-100kph
Tested maf voltage by putting in a diode which dropped maf voltage .5v. This stopped it limping.
I then got an ecutalk and uafc and removed the diode. This confirmed maf voltage was causing limp.
I setup the uafc as basically a voltage clip at 3.9 v and eliminated limp mode. But egts were still to high imo 500 degrees from 0-100kph launch.
The only way I can keep my egts in a reasonable range is by running the max boost at about 20 psi, boost at 100 is about 12-13psi.
Max egts have dropped to about 425 degrees. And sit on about 300-325 usually.
My question is, is that boost level safe considering egt levels.
Car runs beautifully and I'm not chasing power, just reliability and lower egt.
Cheers in advance, sorry for the long post.
Justin.