TRD/ Magnuson 4.0 Supercharger Tips, Tricks, and Mods

URD sells one, but this may not be the root cause of your issue. You said you’ve got AFR, that should have already indicated if it’s starvation.

 

i have a walbro 225lph. seems fine. just because your afr's are correct doesnt mean you are not running limits on fuel delivery.

 

True, I didn’t say that he shouldn’t install an upgraded fuel pump, as imo he certainly should. However, what he described, if indeed inadequate fuel under load, is way past “running the limits”. I’m just saying what would be evident to most of us during a road test, and would either confirm or rule out fuel starvation. Imo other things would be indicative of fuel starvation besides the loss of power and boost.

 

true man. ive heard guys also like the aem 320lph pump as well.

 

The URD 2005+ Tacoma Fuel Pump/Filter Upgrade Kit: DeatschWerks 255LPH Pump with external fuel filter and check-valve has been working great in my truck since July 2018. It's not loud like some of the other options. No extended starts or any issues with this setup.

 

Anyone over here using the Nomad valve body upgrade kit? I was looking around, researching things for the GX470 when I found it. And I believe the GX470 shares the same transmission as the 2nd gen Taco: "GX470 5 Speed with A750F"

https://cruiserbrothers.com/shop/au...uit-toyota-100-series-or-lexus-gx470-5-speed/

 

I’ve looked at that and the torque converter lockout switch… don’t have either though.

 

i have the ratio tek kit.

 

I'm about to buy it from URD to upgrade my fuel pump buy my buddy said not necessary, so it will be in my list next mod. Yeah I do have AFR gauge when I do WOT my AFR gauge show me between 10.9 to 11. 5

If I got fuel starvation should my engine light will be on showing run too lean and loss power but not lose the boost. I lose boost from 4.5lb into 1lb instant. How much boost I should get from URD 2.8 pully?

 

@BlueTaco12TRD , are these two things happening at the same time?

 

I attempted the yransgo kit and ended up without reverse so yeah I'll call IPT when I'm ready lol

 

Not to derail the convo:
Anyone in SoCal have a stock air box I could borrow for a case of beer ?

Have a smog guy whos cool with my Volant air box but not the supercharger… found another guy who’s cool with the supercharger but not the Volant air box

 

I max out at 6 at sea level in cool weather with 2.8 pulley, cam gears, and walbro 255 pump.

 

Swapped out dead Bosch wide band for a denso, works great. Reading a few points richer all around now. At idle with Bosch was 14.6-7
Now I'm 14.3 at idle. Haven't tested it under load, just odd it's not stoich at idle like it was.

 

Yes. That happen when my Rev reach close to 5k, boost gauge show me 4.5lb and suddenly the boost drop and power down like in the dyno but instead it's on the road.

 

I thought with stock pully is 6lb.... I do have cam gears too... definitely need upgrade the fuel pump.
Are you use standard toyota s/c tune?

What brand your AFR?..... mine is AEM one and it say must be use Bosch o2 sensor... do you install the sensor at bank 1 or bank 2

 

Stock TRD tune. 10s at WOT
Aem wide band. Bosch sensor lasted about a month on passenger bank right before first cat.

 

Technically speaking E10-E15 blended fuel does require a slightly richer mixture than 14.7 anyways, so even if you are currently reading 14.3 at idle that would indicate to me that your tune even if it is stock TRD is adjusting to target the richer mixtures required at idle.

 

Either way the gauge was dead with the Bosch sensor and there are numbers moving now so I'm happy.