MAF vs Speed Density w/no MAF
Nov 18, 2009, 12:29 PM
#46
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Glad it was a simple(r) fix.
- Bryan
Nov 19, 2009, 01:55 PM
#48
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This car trapped 128mph last night.
Full weight (bumper beams, full interior, etc all intact)
Stock 6 spd
Stock cams
Street tires
We'll see what is capable of once the owner gets used to the new power more.
- Bryan
Full weight (bumper beams, full interior, etc all intact)
Stock 6 spd
Stock cams
Street tires
We'll see what is capable of once the owner gets used to the new power more.
- Bryan
Dec 9, 2009, 02:45 PM
#51
I am not knocking the results you got per se. just suggesting there should have been a gain. This may be your first swap to SD on the dyno to see the difference but many others have done it as well at similar power levels and have seen gains.
We could bench race till we are blue in the face on why this car didnt see gains. I am not really interested in that. I dont really care why it didnt see gains. I am just against you suggesting there would be no gains for other cars that do a similar swap at this HP level.
I myself have done a buttload of time consuming back to back swaps to see what works and what doesnt. I dont feel I am just guessing this car should have seen gains. take it for what its worth.
We could bench race till we are blue in the face on why this car didnt see gains. I am not really interested in that. I dont really care why it didnt see gains. I am just against you suggesting there would be no gains for other cars that do a similar swap at this HP level.
I myself have done a buttload of time consuming back to back swaps to see what works and what doesnt. I dont feel I am just guessing this car should have seen gains. take it for what its worth.
Feb 24, 2010, 09:34 AM
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Sorry to Hijack the thread, but would happen if an Evo IX FQ320 was mapped with speed desity without a Maf using a stock airbox?
If i inserted in a K&N with this cause any harm? I know the AFR would change but how majorly?
If i inserted in a K&N with this cause any harm? I know the AFR would change but how majorly?
Feb 24, 2010, 04:05 PM
#56
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- Bryan
Feb 24, 2010, 05:08 PM
#57
I tested this and got totally different results. I did a car at 26psi that would not take more timing and when we switched to SD I was able to run 2* more and between that and the increase in airflow resulted in more power. Just getting rid of the MAF was 13whp. David saw similar gains as well on his car that he recently tested.
https://www.evolutionm.net/forums/ec...ifference.html
https://www.evolutionm.net/forums/ec...ifference.html
Feb 24, 2010, 05:10 PM
#58
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I tested this and got totally different results. I did a car at 26psi that would not take more timing and when we switched to SD I was able to run 2* more and between that and the increase in airflow resulted in more power. Just getting rid of the MAF was 13whp. David saw similar gains as well on his car that he recently tested.
https://www.evolutionm.net/forums/ec...ifference.html
https://www.evolutionm.net/forums/ec...ifference.html
https://www.evolutionm.net/forums/ev...tephra-v7.html
- Bryan
Feb 25, 2010, 01:55 AM
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Yep according to the mapper the car would make more HP without the MAF connected.
Anyways i did the test myself last night. The car does not like the K&N RC-4700 cone filter. The air intake is much greater over the stock one and the car was not boosting correctly as well as the BOV sound like a re circulating one.
I put the stock air box back on and she was back to normal....ermm pretty dumb question but i would not loose any mapping settings since the AFR's could have changed when i fitted the new cone filter?
Anyways i did the test myself last night
. The car does not like the K&N RC-4700 cone filter. The air intake is much greater over the stock one and the car was not boosting correctly as well as the BOV sound like a re circulating one.I put the stock air box back on and she was back to normal....ermm pretty dumb question but i would not loose any mapping settings since the AFR's could have changed when i fitted the new cone filter?