Back from the dyno again lol.

[Rodeheaver's]

i think he may have tryed to richen it up at the injector to overcome a pump delivery problem..

[no1sirbutler]

hey jive what are you using for tuning? a chip or handheld? If your using a SCT Xcal then you can datalog your car yourself and see your injectors and pump while just driving and on WOT. Those numbers would tell you wether or not your running out of fuel.

[Jivepepper]

I'm sorry, I don't in any way want to call a professional wrong or call him out, but there's a lot of power left in the A/F ratios...

This may have been asked, but are you tuning it via MAF or SD? At that power level, i'd think you have to be reaching the edge of what the MAF can handle? I had no choice but to go with SD - the only problem is, though SD is great, it takes even longer to get dialed in - therefore its more expensive - mine still isn't perfect... and i think its a little more finicky with changes in temperature/humidity/etc, but not positive with that

SD? I'm using a sct 2400 maf and they installed a Diablo mafia

hey jive what are you using for tuning? a chip or handheld? If your using a SCT Xcal then you can datalog your car yourself and see your injectors and pump while just driving and on WOT. Those numbers would tell you wether or not your running out of fuel.

Chip, the very first one the SCT came out with. I was talking to rich, and he said he would data log for me. But I'm pertty sure I going blow through instead drawl through.

[SonofaBish]

SD = Speed Density

I use a 3bar speed density tune on my car.... once you go beyond the amount of air that a MAF can read, you need to go SD.... The LSx PCM can run on SD(2 or 3bar) as well as the factory metered air setup (MAF). I'm not sure if the mustang PCM's can do the same without getting a standalone system, but i'd suspect they would...

[no1sirbutler]

well jive im down to help data log and stuff w/ rich or whatever you need. and if your using a 2400 MAF w/ a MAFia I seriously doubt you are maxing it out. Im still using the stock MAF w/ a MAFia and Im no where near maxing it out. Im sure once you get it logged on the street, you will find what the problem.

Mike

[Jivepepper]

well jive im down to help data log and stuff w/ rich or whatever you need. and if your using a 2400 MAF w/ a MAFia I seriously doubt you are maxing it out. Im still using the stock MAF w/ a MAFia and Im no where near maxing it out. Im sure once you get it logged on the street, you will find what the problem.

Mike

No I'm not pegging it but I was before tha mafia. If I go to blow through it can lower the working range of the maf and I'm hoping I'll still have enough after the change over. Twin srews require less maf for the same amount of power than a turbo or centrifuge sc..

[Martin0660]

i think he may have tryed to richen it up at the injector to overcome a pump delivery problem..

I would love to sit down and have someone explain this theory of tuning to me.

Bob Myers

[SonofaBish]

well jive im down to help data log and stuff w/ rich or whatever you need. and if your using a 2400 MAF w/ a MAFia I seriously doubt you are maxing it out. Im still using the stock MAF w/ a MAFia and Im no where near maxing it out. Im sure once you get it logged on the street, you will find what the problem.

Mike

you're also not running anywhere NEAR as much power as him .....

Jive, If you can run MAF, that's great - i'm not saying its a bad idea - i'm just saying i'm surprised... atleast for my car, i thought i remembered MAF's being maxed out around 8-10psi... which should be in the area of 550-600rwhp .... the mafia extends that range, but i'd be surprised if it makes you able to go very far beyond your current hp range... ?

i'm sorry, that's off topic - just a thought if you can't get your driveability - however, i wish you good luck... i'm sure you'll get it figured out - just takes a little patience!

[Jivepepper]

you're also not running anywhere NEAR as much power as him .....

Jive, If you can run MAF, that's great - i'm not saying its a bad idea - i'm just saying i'm surprised... atleast for my car, i thought i remembered MAF's being maxed out around 8-10psi... which should be in the area of 550-600rwhp .... the mafia extends that range, but i'd be surprised if it makes you able to go very far beyond your current hp range... ?

i'm sorry, that's off topic - just a thought if you can't get your driveability - however, i wish you good luck... i'm sure you'll get it figured out - just takes a little patience!

If you look for joe's TT GT on youtube you can find where they used a maf on it until 1100rwhp. Now it was either the 2800 or the 3000. My 2400 on cobra is could to 600rwhp. Then there's the 2600, 2800 and the 3000.

It does take patience and all your money lol.

[SonofaBish]

If you look for joe's TT GT on youtube you can find where they used a maf on it until 1100rwhp. Now it was either the 2800 or the 3000. My 2400 on cobra is could to 600rwhp. Then there's the 2600, 2800 and the 3000.

It does take patience and all your money lol.

cool - well as long as its working for you, then go for it...

[Rodeheaver's]

I would love to sit down and have someone explain this theory of tuning to me.

Bob Myers

it not a good way to do things but i have heard on guys trying to lengthen the IPW to overcome weak fuel delivery.. it is more like a bandaid for other problems..just a thought or what he may have tryed to do..