Attention: THOSE OF YOU with TRD SUPERCHARGER—Check in

[banshee4785]

I was just sitting here and I came across one question that I was hoping some of you could help me elaborate on. Those of you with the TRD blower: What can be done to maximize the output on this unit. I’m not talking about headers, exhaust, and intake, because I am there on those things. I mean pulleys, if the unichip is worth getting on the blown tundra and so on. What options of pulleys can be bought or possibly fabricated to increase boost? I have been researching the TRD supercharger for about 3 years now. It started back when I wanted more power in my 3.4 T100. After getting the tundra, we all know what happens…the power is never enough for some. Whether it is because of towing or just the shear pleasure of having the extra pull in your TOY. Hands down, I would rather stick to the trd. I am aware of the STS system (Wish I could bring myself to do it), the “boosted Tundra’s” unit, but like I said I would rather get the trd for not much more than 3k on ebay sometime this summer.

Again, please elaborate on what you have done to Maximize the efficiency of the TRD blower and or what you plan to do in the feature.

[rytherwr]

As far as pulleys go, AST will make you a 5.9" crank pulley that raised the boost on my TRD supercharger from 6 psi to 9 psi. I looked at the supercharger pulley, but it doesn't seem like there is room to go smaller on that end. You can also shoot some nitrous, but be very careful....Go to www.lextreme.com/tundra.html to see what happens if you get too squirrely and what I am doing to enhance the TRD supercharger on my new engine...

Wayne

[banshee4785]

well, Wayne.

I dont think I could of asked for anyone else to reply with more info. I think thats why it stoped after you said something. That is nuts man. I guess if you got the money, and you must, that is great.


I really dont know what else to say-wow

[beboff]

Put a 75 or 50 shot of nitrous With 6 psi trd s/c.You will love it!! floor it at 30mph and smoke the tires

[Triple BB]

TRD pulled the V8 S/C because the motor wasn't designed for the added compression. Too many folks were blowing things up. Yer wanting to do some things to increase compression even more. Could be a costly lesson if you mess up...

[cowboy bebop]

Originally Posted by banshee4785

What can be done to maximize the output on this unit. I’m not talking about headers, exhaust, and intake, because I am there on those things.

Not to bring a seperate thread into your thread, but more aggressive cam profiles would help GREATLY in both forced induction, and N/A applications. The stock profile (188in, 194ex, .314in, .315ex) isn't helping any in the performance arena.

But there is hope. There are hardwelded cams available in whatever custom profile you'd like, or 1 of 8 existing profiles that have been proven to work.

On the 4.7L 2uz-fe, cams seem to make the difference when boost, timing, and all other values are the same.

Thanks,

Eric

[AC]

Originally Posted by cowboy bebop

Not to bring a seperate thread into your thread, but more aggressive cam profiles would help GREATLY in both forced induction, and N/A applications. The stock profile (188in, 194ex, .314in, .315ex) isn't helping any in the performance arena.

But there is hope. There are hardwelded cams available in whatever custom profile you'd like, or 1 of 8 existing profiles that have been proven to work.

On the 4.7L 2uz-fe, cams seem to make the difference when boost, timing, and all other values are the same.

Thanks,

Eric

what, help the engine from self-destruction when there are some weak links? Do you speak of experience with the 2uz engine?

[cowboy bebop]

Originally Posted by AC

what, help the engine from self-destruction when there are some weak links? Do you speak of experience with the 2uz engine?

There are weak links with the 2uz-fe in the way of rod/ pistons without a doubt. But the question was what could be done to maximize the output of the unit, and I answered that. Building the motor of course is recomended when bumping up the output of a 2uz, and that should go without saying.

It's not my intention to encourage a 2uz owner to blow his motor, but assuming the motor is already reinforced, I strongly feel that a more aggressive camshaft would benifit greatly. I stand by my answer.

Eric

[rytherwr]

I speak from experience and Eric is spot on....it's pretty easy to tell the folks who have never been inside a 2uzfe or if they were, didn't recognize what they saw

Wayne

[AC]

The "self-destruction" was a joke, as we all know, there are weak links.
The question about your knowledge of the engine was not to incite a defensive answer, but rather for legitimate info regarding the camshaft.

Thanks,
AC

[42GAMI]

being a previous turbo supra and sbc owner, id have to disagree with the camshaft theory from $$$ perspective. anyone can cite a performance enhancement in any area of the motor or FI system. dollar for dollar, a turbo or turbo nitrous combo would make the best bang for the buck.

custom ground cams for a tundra motor would not give you the gains you can feel like a small block chevy does. sure the cam profile could use improvement, but how much? a full roller set up for a tundra is cost prohibitive for the HP gains not to mention you will need to shell out for a stand alone engine management system.

if money were no object than sure, new cams it is. im not trying to be a wise guy but companys like TRD HKS have been around years doing R&D on toyota motors. i dont see a slew of cams available for them like jeggs and paw does for domestics. did anyone stop to consider that toyota has a pretty decient cam profile compromise to start with. it just makes more sense to me, if you want more power, you have to increase the volumetric efficiencey of the engine. stuff in more food, ream the arse, and adjust the timing so the motor dont choke. ahem, did i forget mention swaping out the rods & pistons 1st? oops.

[cowboy bebop]

Originally Posted by AC

The "self-destruction" was a joke, as we all know, there are weak links.
The question about your knowledge of the engine was not to incite a defensive answer, but rather for legitimate info regarding the camshaft.

Thanks,
AC

AHHHHhhh, my apologies AC, I completely looked at that wrong.

[rytherwr]

Me too, AC...my apologies also...I am doing something really wild with my engine and most of what I hear is negativity...usually when I check the knowledge of the naysayers, they don't have much experience with the 2uzfe. By the way AC, 'self destruction' really isn't a joke...you are more right than you know. If you get too frisky with the stock 2uzfe...it will do exactly that...check out the url in my earlier post and it will show exactly what happens

[cowboy bebop]

Originally Posted by 42GAMI

being a previous turbo supra and sbc owner, id have to disagree with the camshaft theory from $$$ perspective. anyone can cite a performance enhancement in any area of the motor or FI system. dollar for dollar, a turbo or turbo nitrous combo would make the best bang for the buck.

custom ground cams for a tundra motor would not give you the gains you can feel like a small block chevy does. sure the cam profile could use improvement, but how much? a full roller set up for a tundra is cost prohibitive for the HP gains not to mention you will need to shell out for a stand alone engine management system.

if money were no object than sure, new cams it is. im not trying to be a wise guy but companys like TRD HKS have been around years doing R&D on toyota motors. i dont see a slew of cams available for them like jeggs and paw does for domestics. did anyone stop to consider that toyota has a pretty decient cam profile compromise to start with. it just makes more sense to me, if you want more power, you have to increase the volumetric efficiencey of the engine. stuff in more food, ream the arse, and adjust the timing so the motor dont choke. ahem, did i forget mention swaping out the rods & pistons 1st? oops.

Remember that a motor is an air pump, and not a fuel pump so to as you say "stuff in more food" should mean to stuff in more air. Longer durations, and more lift achieves just that. In a forced induction set-up, more aggressive profiles than stock would benifit greatly.

I run a 1000HP street driven Supra myself, and my cam specs are 230, 222 @ .050 10mm/ 9.7mm. Even those are not the most aggressive I've ever seen. The stock 2uz-fe cam profiles are nowhere near where they need to be for HP production, especially when it comes to forced induction.

Plus the fact that there are no cams upgrades until now does not denote that there are no gains to be made. It simply means that there were no upgrades (probably due to limited market).

But the times have changed.

Eric

[AC]

Wayne, I can definately appreciate what you have done there with your engine. And with many here, I have learned from mistakes people have made with the Tundra. That's not to say mine won't blow from whatever. They're not that much to replace. You have gone way over the top with your setup.

Eric, yes the Supra is a sweeeet mod car. I'm on that forum too. The more expansion on your idea of a different camshaft, the more i'm intrigued. Details and some sort of specs. Having access to a CNC grinder, I might like to make one.

Thanks,
AC