ROW Airbox benefit info UPDATE
They actually asked if I would cancel my order, and they refunded me stating there was no reason to purchase. I was impressed with the candid honesty.
With that, they as a company are discontinuing all sales of ROW boxes/inserts etc since there is no benefit.
What DID make a difference they stated, was the spacer kit.
Figured this may be some useful info to pass on
Paul
Now you're just opening old wounds. May god have mercy on your soul. Maybe, just maybe they will provide their data??
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Found it, thought they were reselling the UPD ones referenced in the magic spacers thread which are the UPD ones.
Looks like VRP Speed has their own set for $150 which is a much more reasonable price.
http://vrpspeed.com/index.php?route=...product_id=342
I also made my own spacer with an old filter and cut the rubber off them and used that as a spacer.my fuel trims are almost zero now and dont fluctuate like the rows do.
Here is a log of my air flow using stock boxes 425gs/sec at 7k
I have another somewhere with 430 at 7400 rpms
And if you want to try the spacers don't drop $450 or even $150 on them. You can make them yourself easily for less than $10 in parts from the hardware store. PM if you want details.
Last edited by Doc Oc; Jun 16, 2018 at 11:03 AM.




And if you want to try the spacers don't drop $450 or even $150 on them. You can make them yourself easily for less than $10 in parts from the hardware store. PM if you want details.
They actually asked if I would cancel my order, and they refunded me stating there was no reason to purchase. I was impressed with the candid honesty.
With that, they as a company are discontinuing all sales of ROW boxes/inserts etc since there is no benefit.
What DID make a difference they stated, was the spacer kit.
Figured this may be some useful info to pass on
Paul
I also made my own spacer with an old filter and cut the rubber off them and used that as a spacer.my fuel trims are almost zero now and dont fluctuate like the rows do.
Here is a log of my air flow using stock boxes 425gs/sec at 7k
I have another somewhere with 430 at 7400 rpms
The map must be corrected properly, as for example I live in ROW(rest of world) and got almost zero trim all over.
And, if having a big value of fueltrim might actually be good sometimes.
Engine is pumping more air than the map is calculated to do and thereby produces MORE power.
Having big value on MAF some day after tuning says nothing if the fueltrim still is zero.
If being able to burn more fuel correctly, engine is producing more power.
And primary o2 sensors on our cars is widebandsensors, and by that they are NOT overlooked by ECY anywhere in the map.
ECU is reading them througout whole engine's register and calculating fueltrim.







