Guys, there is nothing to argue about. He removed the MAF and picked up power as evidenced by his times. There is no way to argue with results.

 

well that is weird... is there anywhere in your logs where you were logging with key on and engine off to see what the map was reading? maybe the weather was drastically different?

 

thanks man! I think next time im at the track im gonna do a run with torque management back to full to see how much difference there is... im curious how much that helped even though i dont think it was much.

 

And not only was it that, you picked up trap speed which is the #1 indicator of horsepower.

 

exactly... i was happy with droping .25 but the 2.5mph made me even happier cuz thats horsepower

 

A screened 75mm MAF produced about the same pressure
drop as the stock lid w/ silencer, when I was doing "ghetto
flowbench" testing 7-8 years back. A descreened MAF I could
not measure, and I had a resolution of about 1/8"H2O.

 

Just because some stock piece is "good for xxxHP" doesn't mean freeing that restriction won't help a free a few HP.

Think of exhaust, You can take X Muffler and replace it with Y muffler, and gain 10rwhp, does that mean that X muffler isn't capable of an extra 10rwhp if the motor gains 50hp with some other mods?

 

I have
SSRA+ CAI w/ MAF 74mm (stock).....The gain was 2.8 tenths

So what would the gain with MAF 85mm?
SSRA+ CAI+ MAF 85mm =2.8+?

 

Are you saying the removal of the screen was a reduction so that the MAF was no longer producing a measurable restriction?

 

"You need to check the key on engine off MAP reading at the time you log to really know how much it changes. I highly doubt the 5 mm difference in size will effect the performance.

Here in Southern Michigan I may see 98 kPa on one day and only only drop to 96 at WOT, others days I may see higher or lower. The barometric pressure changes the readings.

To the OP, if you have a 78 mm stock MAF than you should absolutely see a gain."

Yep, looking at my logs the ones from 2007 were in May whereas this years logs are from August. I'll try the key on thing.

To the post above, I'd like to hear more from jimmyblue on the subject too.

 

I don't think it's the effective ID of the MAF that acts as a restriction, it's the screen, especially with heads/cam or more cubes.