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I'm starting to wonder about the MAF. The1 says the stock V6 MAF is good for 10,000hz and this is going over that. Might be time to fit an LS1 MAF to ensure we have enough resolution.

I have a VZ LS1 MAF and pipe here if it helps. Kept it for a rainy day. Will have a connector here to somewhere. It's the bigger 5 pin one.

Dylan wrote:I have a VZ LS1 MAF and pipe here if it helps. Kept it for a rainy day. Will have a connector here to somewhere. It's the bigger 5 pin one.

You have a PM

My IAT also starts to climb when the air flow drops.
Pretty sure boost pressure stays fairly stable

I think i have a screen shot of it on my phone I'll have a look and see if I can find it

0081 wrote:My IAT also starts to climb when the air flow drops.
Pretty sure boost pressure stays fairly stable

I think i have a screen shot of it on my phone I'll have a look and see if I can find it

I just found this old datalog from a year ago. Boost continues to climb but Cylair noses over at 5200rpm! What is even more interesting is that the MAF Hz and Cylair numbers are almost identical to the run I did on Monday with the 1.9 rockers fitted. The car is definitely accelerating better but the logs don't seem to show it. This data is also before the bigger elbow, improved CAI etc so I'm definitely thinking I've exceeded the airflow for the standard V6 MAF.

Thanks to Dylan I have a new MAF on the way

Cheers mate

This shows mine dropping off in cylair.

Interesting.

Yours looks like it revs out cleanly to 6000rpm, is that still on a standard cam?

XP HOT cam
Was a fresh build with a balanced bottom end

0081 wrote:XP HOT cam
Was a fresh build with a balanced bottom end

It'll be interesting to see what the blower porting has done.

That thing is definitely moving a shit load of air with good IAT's