The 3.4L TRD Supercharger Thread
- Thread starter SCRunner12
- Start date
gamefreakgc
Elite Member
At best, $2500. I see good used ones going for around $2000 much more often though.
MarkamisPrime
New member
Can I borrow it for a bit? Just to see if I need to buy it. But not for $4k lol
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Fisheroon
New member
Hey guys! I have the Magnuson SC, URD 7th Injector and 2.2" pulley installed on my 2000 5-speed. I have been playing around with my tuning maps a bit and I am getting good results. I grabbed some data on the R4 software last night and I have some questions on some of the results...
The URD AIC is seeing max MAP pressure of 7.2 psi (I'm at 2880' in the miserable city of Midland). My boost gauge is showing closer to 9-10 psi. Is this similar to what you all are seeing with this pulley size? and why might there be this discrepancy in pressure readings?
Does anyone know what Injector B is referring to? Injector A should be the 7th injector, I believe...
Injector A showed max duty cycle of around 54% during my 1st-3rd gear pull. Is this the actual duty cycle or do I need to multiply it x2 like in the fuel map? I'm assuming that this is the actual value since I'd be shocked to be maxing out the extra injector...
Below is a data log from the pull.
1-3 gear pull safe map Midland by https://www.flickr.com/photos/140393666@N08/, on Flickr
The URD AIC is seeing max MAP pressure of 7.2 psi (I'm at 2880' in the miserable city of Midland). My boost gauge is showing closer to 9-10 psi. Is this similar to what you all are seeing with this pulley size? and why might there be this discrepancy in pressure readings?
Does anyone know what Injector B is referring to? Injector A should be the 7th injector, I believe...
Injector A showed max duty cycle of around 54% during my 1st-3rd gear pull. Is this the actual duty cycle or do I need to multiply it x2 like in the fuel map? I'm assuming that this is the actual value since I'd be shocked to be maxing out the extra injector...
Below is a data log from the pull.
1-3 gear pull safe map Midland by https://www.flickr.com/photos/140393666@N08/, on Flickr
4Reak Show
New member
I think the pressure differences have to do with the display settings for either the URD software or the boost gauge depending on if yours is digital or not. "Absolute" pressure is different than relative pressure and rule of thumb is 1 psi per 1,000 feet so at your elevation that would explain the couple PSI difference. There's a display function on the URD software to change it so that might help.
As far as duty cycle it would appear that yes you are maxing out the injector. You have it set up at "3 cylinder 2 stroke" engine in the settings right?
As far as duty cycle it would appear that yes you are maxing out the injector. You have it set up at "3 cylinder 2 stroke" engine in the settings right?
gamefreakgc
Elite Member
Boost gauges are notorious for being inaccurate. The MAP sensor on the URD is much more reliable. That sound about right for being near 3000 ft up with the 2.2" pulley.
Not sure what injector B is on that map, but A is definitely the 7th injector. You're not maxing out the 7th injector at 7.2 PSI, it can handle fuel needs of up to 11 PSI, that's true duty cycle you are seeing at 54%. The URD AIC unit cannot read the injector duty cycles of the stock injectors. To do that you'd have to have cut and splice all 6 injector wires, which I'm positive you didn't.
Fisheroon
New member
Makes sense with the absolute vs. relative pressure. Yes, I am set up as "3 cylinder, 2 stroke".
Yeah it's definitely not wired to see stock injectors. I'll try to reach out to Gadget and report back with the findings on Injector B. Thanks!
Lamer
New member
1996 vacuum lines - where do they go now?
so I am having some trouble with the vacuum lines now that the supercharger is installed.
my hoses are dry as hell and Ill need to get some new ones. But my real struggle is going from a non supercharged vacuum hose set up, to a supercharged vacuum hose set up.
I have not been able to find a decent picture or walk through of where they need to go. And its different for each model year (I think) the papers I have read cover late model 3rd gens......(not what I need)
can anyone help? would like to have it up and running before work on Monday...
so I am having some trouble with the vacuum lines now that the supercharger is installed.
my hoses are dry as hell and Ill need to get some new ones. But my real struggle is going from a non supercharged vacuum hose set up, to a supercharged vacuum hose set up.
I have not been able to find a decent picture or walk through of where they need to go. And its different for each model year (I think) the papers I have read cover late model 3rd gens......(not what I need)
can anyone help? would like to have it up and running before work on Monday...
gamefreakgc
Elite Member
Hey all, a TRD 7th injector popped up in my Craigslist search today. No that's not a typo, Toyota actually made a 7th injector system. TRD 3.4 Supercharger 7th injector Kit Tacoma / 4runner - auto parts....
I should add, the reason why I posted it is because it is CARB approved.
I should add, the reason why I posted it is because it is CARB approved.
Last edited:
Team_Jake
Member
2nd gen TRD supercharger + 7th injector and a bunch of goodies on Reno craigslist right now --> 5vzfe supercharger - auto parts - by owner - vehicle automotive sale
Lamer
New member
AH! so seeing this tells me I have the actual Toyota Injector, but am running a URD PCU. interesting. thanks for the post!
Thebeastlives
New member
I'm curious what mpg do you guys get supercharging a 3rd get? Also with the additional power does our 5th gen hold up under the stress o towing
Smog-guy707
New member
I gained 1 mpg with the supercharger install. Now I average 16. I got to test drive a 5th gen and my 3rd felt like it had the same amount of power. There was not much difference in the two that I couldn’t justify spending 40k for the same rig
I have towed with the supercharger and it does great.
I wonder what 5th gens will be like when they get to 350k?
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Thebeastlives
New member
16 mpg with a SC isnt bad at all. My 25 year old ass 96 3rd gen gets about the same as my wife's 5th gen n my son's gen. They all get bout 19 around town n 21 on the open hwy. Believe it or not the 4th gen is noticeably quicker than the 5th gen probably because of weight. I agree with you totally now let's see if her 5th gen gets to 300+ miles relative trouble free like our 318k 3rd gen. The 4th gen is at 265k n runs great n I'm sure if I sc this 3rd gen I will be able to keep up with him climbing the mtn passes to the ski slopes. Superchargering my 3rd gen does seem like an interesting project.
infamousRNR
Senior Member
gamefreakgc
Elite Member
LCE sells them Throttle Body Spacer Kit - 5VZ
AirAid sells them 510-502 AIRAID Throttle Body Spacer
aFE Power sells them Silver Bullet Throttle Body Spacer | aFe POWER.
But to be honest, the majority of the supposed dyno gain that LCE claims is from replacing the throttle body gasket to the "O" type from the restrictive "D" type. If you want a bigger bang for your buck, get the "O" gasket and get aFe's drop in dry or oiled filter Magnum FLOW Pro 5R Air Filter | aFe POWER or get a ported throttle body from maxbore.com Maxbore.com throttle body boring service and repair.
I gained a peak gain of +9 HP and +9 TQ with the aFe oiled filter alone.
