really cheap cai

MikeLTDLX

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I think I covered this is post #178. The ask here is that the same tune with the updated changes mentioned be used for the stock CAI and the JLT CAI. The only change being the MAF transfer function. ;-)

The tune will be identical, except for the transfer function.

Mike
 

SILV03MustangGT

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I think I covered this is post #178. The ask here is that the same tune with the updated changes mentioned be used for the stock CAI and the JLT CAI. The only change being the MAF transfer function. ;-)

the clips mike is referring to is already out of his tune. so MAF transfer will be the only change.
 

AluminatorSnake

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I have to wonder if you are one of Tucker's buddies who decided to chime into this thread to simply bash. (I firmly believe this given your close proximity.)


I had no idea who Tucker was until this thread... and just because I live in virginia im supposed to live close to him and be best buddies? It can take 8 hours to drive across the state you ignorant ass.

Heres some proof:

I live in North Tazewell Va, 24630
He has listed Chesapeake Va on his profile

Google maps:
Suggested routes
409 mi, 6 hours 55 mins I-81 N and I-64 E
370 mi, 6 hours 55 mins US-58 E
369 mi, 7 hours 0 mins US-460 E

7 hours? He might as well be my damn neighbor. Thank you for being an idiot
 

SVTPete83

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Now we are talking about maps and driving time from one dudes house to the next...Wow
 

kdanner

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None of what i stated is theory... these are priciple facts of the science of fluid dynamics. Ive studied this many hours and have degrees in both civil(BS) and mechanical(AS) engineering.

If you're an ME, why did I just find a couple of your forum posts saying cutting a coil spring doesn't change the spring rate if it is a linear spring? Should have studied harder or found a better engineering school I guess. Throwing your degrees into the discussion backfired this time.
 

Shaun@AED

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Maff looks a bit more noisy with the JLT.....
StockCAI.gif

JLTWOT.gif
 

AluminatorSnake

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If you're an ME, why did I just find a couple of your forum posts saying cutting a coil spring doesn't change the spring rate if it is a linear spring? Should have studied harder or found a better engineering school I guess. Throwing your degrees into the discussion backfired this time.


Haha wow... that's flattering. I will admit that that was incorrect but do not discredit my degrees. I finished my associates in spring of 201, all done in a year, and have been working at pemco corporation for close to a year now. But I will admit that was incorrect you happy?
 

MikeLTDLX

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Interesting night. With the JLT, timing was getting pulled above 4k. As much as 5-8 degrees. I thought maybe it was the weather, so I loaded the air box back on and ran again. All the timing was back. Fresh tune going on in the morning for testing. We are giving it our 100% effort here. If we can get that timing back, we should be golden.

The JLT is easy to install and remove, so that is good. It also looks very nice and sounds cool. Now, we just need to get that power to the ground.

Mike
 

SILV03MustangGT

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Interesting night. With the JLT, timing was getting pulled above 4k. As much as 5-8 degrees. I thought maybe it was the weather, so I loaded the air box back on and ran again. All the timing was back. Fresh tune going on in the morning for testing. We are giving it our 100% effort here. If we can get that timing back, we should be golden.

The JLT is easy to install and remove, so that is good. It also looks very nice and sounds cool. Now, we just need to get that power to the ground.

Mike
interesting. I wonder whats causing the pull? could it be the maf freq?
 

MikeLTDLX

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interesting. I wonder whats causing the pull? could it be the maf freq?

Another set of limits exceeded, and the computer pulling tricks. Shaun is confident the new tune will address the issues. I will be up bright and early swapping back the JLT. Just hoping for the weather to clear by sunrise.

Mike
 

Shaun@AED

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Inherent issues with simply changing the Maff Transfer function as seen here:
Stock CAI shows 44 lb/min of airflow
StockCAI-1.gif


JLT CAI shows 53 lb/min of airflow!
JLTCAI.gif


There's NO WAY the JLT added 9lb/min of airflow into the engine, that's like adding 90HP.
The problem here is the Maff is used to calculate other 'infered' values, like MAP, Lb/Min and other things used by the ECU, in which case it looks like we're hitting some Ford programmed limits which is pulling timing. Or, the 'noisy' maff is causing the timing to be pulled. We'll have to investigate.

I've updated the tune in hopes Ignition timing will be back to 'stock CAI' levels. (without disabling the Knocks or changing ignition timing)
 
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wbt

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Inherent issues with simply changing the Maff Transfer function as seen here:
Stock CAI shows 44 lb/min of airflow
StockCAI-1.gif


JLT CAI shows 53 lb/min of airflow!
JLTCAI.gif


There's NO WAY the JLT added 9lb/min of airflow into the engine, that's like adding 90HP.
The problem here is the Maff is used to calculate other 'infered' values, like MAP, Lb/Min and other things used by the ECU, in which case it looks like we're hitting some Ford programmed limits which is pulling timing. Or, the 'noisy' maff is causing the timing to be pulled. We'll have to investigate.

I've updated the tune in hopes Ignition timing will be back to 'stock CAI' levels. (without disabling the Knocks or changing ignition timing)

Datalogging with street tuning, the Airaid intake with the MVS insert out, we saw none of these symptoms. We haven't datalogged the JLT yet...hope to next week.

Our results:
100% throttle
No TQ limiters observed
Timing was what we commanded it to be
A/F curve was flat without spikes or dips both on 93 pump gas and e85
 

Shaun@AED

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Datalogging with street tuning, the Airaid intake with the MVS insert out, we saw none of these symptoms. We haven't datalogged the JLT yet...hope to next week.

Our results:
100% throttle
No TQ limiters observed
Timing was what we commanded it to be
A/F curve was flat without spikes or dips both on 93 pump gas and e85

The Copperhead has the capability of limiting power thru other means.
That's what I've been working on for the last 2 months at the dragstrip.
 
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me32

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Inherent issues with simply changing the Maff Transfer function as seen here:
Stock CAI shows 44 lb/min of airflow
StockCAI-1.gif


JLT CAI shows 53 lb/min of airflow!
JLTCAI.gif


There's NO WAY the JLT added 9lb/min of airflow into the engine, that's like adding 90HP.
The problem here is the Maff is used to calculate other 'infered' values, like MAP, Lb/Min and other things used by the ECU, in which case it looks like we're hitting some Ford programmed limits which is pulling timing. Or, the 'noisy' maff is causing the timing to be pulled. We'll have to investigate.

I've updated the tune in hopes Ignition timing will be back to 'stock CAI' levels. (without disabling the Knocks or changing ignition timing)

I'll be keeping up with how the testing is going.

Datalogging with street tuning, the Airaid intake with the MVS insert out, we saw none of these symptoms. We haven't datalogged the JLT yet...hope to next week.

Our results:
100% throttle
No TQ limiters observed
Timing was what we commanded it to be
A/F curve was flat without spikes or dips both on 93 pump gas and e85
I'll also be keeping up with your info aswell. As you guys also seem to have some good info.
 

MikeLTDLX

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This pull looks very promising. Timing is back and the car pulled very hard. Also, some indications that we are making more power. Weather is cruddy, very overcast and windy. Temps have cooled. I am keeping my eye on the radar outside of Baton Rouge, because that is my destination tonight for racing. I am hoping it all holds together.

Mike
 

Radar Doc

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This pull looks very promising. Timing is back and the car pulled very hard. Also, some indications that we are making more power. Weather is cruddy, very overcast and windy. Temps have cooled. I am keeping my eye on the radar outside of Baton Rouge, because that is my destination tonight for racing. I am hoping it all holds together.

Mike

Looks like you should be in the clear by 3 pm. Thanks to you and Shaun for testing and posting this info. Enjoy your day and be safe!

Mike
 

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