Installing Pyro and Boost gauges in a GU

[Leighw85]

booked in for my new 2 and a half inch dump pipe and my pyro bung install tomorrow.
the bloke is doing it with the new dump pipe for $300
pretty good considering that was the price i was getting of some just to put the bung in lol

If my pillar comes tomorrow which it should, i hope to install my gauges over the weekend

[Leighw85]

gauges installed today pretty stoked it all went well
what sort of temperatures should i be seeing from my pyro?
street driving at 60km
highway driving 100km
and 4x4 driving.
and so on. info on this would be great so i know where and what it should be doing

cheers

[Leighw85]

Ok so I have been for a bit of a drive over the weekend once I installed my gauges. Can someone let ne know if these temperatures are normal for my pyro?

Accelerating up to 100km on the highway I'm getting temps of about 450-500c but once up to speed it settled down to about 280-350c

Just cruising through the streets once up to speed it settles around 250-300c.

I was just curious mainly on the accelerating up to speed temps.
And sometimes on cruise control doing 100km my boost gauge Sita roughly on 10psi then goes up to 13psi down to 5psi then settles back at 10psi. It does this a little bit. Is that normal also?

Cheers all

[Clunk]

Ok so I have been for a bit of a drive over the weekend once I installed my gauges. Can someone let ne know if these temperatures are normal for my pyro?

Accelerating up to 100km on the highway I'm getting temps of about 450-500c but once up to speed it settled down to about 280-350c

Just cruising through the streets once up to speed it settles around 250-300c.

I was just curious mainly on the accelerating up to speed temps.
And sometimes on cruise control doing 100km my boost gauge Sita roughly on 10psi then goes up to 13psi down to 5psi then settles back at 10psi. It does this a little bit. Is that normal also?

Cheers all

hey leigh good to see you've perservered and managed to get the work done mate..................... as far as temps and pressures are concerned, I can't help there mate but I'm pretty sure I've seen it mentioned in a thread that temps shouldn't go over 500C for sustained periods....... I'll see if I can find the thread

[Bagheera]

I haven't fitted my EGR blank yet (lazy + school holiday madness with kids), so these are "stock" temps:
Street cruise @ 60km/h - ~450deg F (230deg C)
Highway cruise @ 100km/h - ~600-800 deg F (315-425deg C) depends a lot on the weight in the car, roof racks, etc. Cruising at 90-95km/h is always ~250deg C
4x4 driving - ~1020-1030deg F (550deg C), and that was a long muddy hill climb in 4H with 25PSI tyres and keeping the boot down hard in 2nd on the auto. During the tougher track sections it seemed to hover around 450-500deg C, but backing off a little saw it rapidly drop back 100deg C in less than 30 sec.

I believe that blocking the EGR sees a substantial temp drop above 2500rpm (when the EGR valve would normally open). I'll know for sure after this coming weekend if I find the time to fit up the blanking plate and needle & dawes valves and adjust them properly.

[Leighw85]

cheers fellas, yeah your right Clunk ive read that also

any info on how to adjust my Dawes valve?
im getting 12 PSI tops and have read it should be set at about 16 PSI

[Chaz]

cheers fellas, yeah your right Clunk ive read that also

any info on how to adjust my Dawes valve?
im getting 12 PSI tops and have read it should be set at about 16 PSI

Just undo the thin lock nut, hold the knurled end with pliers and turn the body with a spanner in the direction to tighten (shorten) the valve to increase maximum boost. Then gently nip up the lock nut and go for a drive and test.

The boost level can vary from car to car, but if you still have ECU control it should be ok to run 16psi. If you bypass the ECU solenoid, I'd keep it below 16psi under 3000rpm.

[Leighw85]

everything has been asjusted yay

just a quick question on boost but.
when i have my cruise control set at 100km/h, is it normal for my boost to sit on 10psi for a fair chunk of the time. But sometimes it goes from 10psi to 5 psi to 0psi EGT's rise a bit, then it finally goes back to about 10psi and stays there for a while.

is this normal boost behavour?

[Chaz]

everything has been asjusted yay

just a quick question on boost but.
when i have my cruise control set at 100km/h, is it normal for my boost to sit on 10psi for a fair chunk of the time. But sometimes it goes from 10psi to 5 psi to 0psi EGT's rise a bit, then it finally goes back to about 10psi and stays there for a while.

is this normal boost behavour?

That sounds normal if you still have the ECU controlling boost and your EGR isn't blocked. Otherwise, perhaps it's the cruse control manipulating the throttle.

[Leighw85]

My EGR is blocked and what's that about the ecu?