New HPD MAF housing put in!

[Covo71]

Ok, Put the new HPD MAF housing in a couple of days ago mucked around with the boost today and it is sitting at 20psi and no limp mode. I know early days but loving it so far. I could not go above 14psi before. Did't really feel any difference until I went for a drive today going up the hill that seems to throw it in to limp mode in the past as I was going up I didn't have the right foot to the floor like I would normally. Temps only got to 400deg.

The question is what boost is too high? What are the ramifications? Good or bad for the engine?
Really want to get a chip now.
Cheers
Scott

[mudski]

I run 25psi mate with no issues.

[threedogs]

would you get much more from a chip,
how about a re map seems to be better than a chip


Edit.. the Hume hwy out of Melb is 110 kph max on the way to the Murray.
so for me anything around 12-15 psi would make me happy

[Covo71]

would you get much more from a chip,
how about a re map seems to be better than a chip

I think it is breathing a hole lot better now but a bit more juice through might give it some mumbo! I wasn't sure if you could do the remapping on a DI. Thought it was CRD only.

[Covo71]

I run 25psi mate with no issues.

Is it worth getting the air box lid from HPD aswell?

[threedogs]

I cant see how the lid mod would improve things,Its only one 76mm elbow , look at it??
Im just about to change the complete air intake from the Maf housing to the turbo
I hope it will do the same as the HPD maf housing by allowing more air to flow ?

[Paule]

I've been thinking about this maf housing for a while, is there any reason I can't chuck the stock maf housing in the lathe and open it up a bit? What is the ID of the hpd maf housing? Is the stock housing wall thickness thick enough? I'm a fitter and have access to a lathe

[threedogs]

I've been thinking about this maf housing for a while, is there any reason I can't chuck the stock maf housing in the lathe and open it up a bit? What is the ID of the hpd maf housing? Is the stock housing wall thickness thick enough? I'm a fitter and have access to a lathe

I dont think you have enough material to machine, I have a spare housing here.
they say the HPD one is flowing 33% more the OE maf is 70mm
so the HPD one must be what 80- 85mm over 100mm distance.
My thinking is if I can remove the convoluted OE intake it would acheive the same thing
wall thickness is about 4mm approx no more

[Paule]

I dont think you have enough material to machine, I have a spare housing here.
they say the HPD one is flowing 33% more the OE maf is 70mm
so the HPD one must be what 80- 85mm over 100mm distance.
My thinking is if I can remove the convoluted OE intake it would acheive the same thing
wall thickness is about 4mm approx no more

Do you want your old housing TD?

[threedogs]

Im going to use the OE maf and use tig welded stainless steel pipe for the intake.
Ill see how that goes , must flow more air.
If that doesnt do anything Ill laser cut a new lid and tig weld a 76mm elbow to it.
Thats the plan just waiting for it all to arrive ATM, using AN 10 black fittings and braided hose for
catch can hoses

@ Paule I grabbed mullet-hunters old MAF to see if I could mod it, being ABS you might be able to skim
a couple of mm off it, Ill take it to On Track in the morning and see what Andrew says