Is the TRD supercharger really that bad for the 4.7? (1 Viewer)
- Thread starter Gassiper
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Not many issues on the 100 platform but I believe issues came about when the tundra guys started adding boost. I could be wrong though. I did not hesitate to put it on my 190k LX. The only real concern is the fuel mileage. I get roughly 13 mpg with 33s. I usually see an uncorrected 270 miles when the low fuel light comes on. This is mixed 80 city/20 hwy with the required premium fuel.
I looked into this a while back, the story is the Land Cruiser's 4.7 is made in Japan, with forged rods and pistons. Versus the Tundra/Sequoia 4.7 american made engine with cast components. Reported engine failures were on the US made 4.7's. I could not find an example of a Land Cruiser engine failure with the TRD supercharger.
x 2, the Tundras were the only ones that I remember having trouble for the exact reason that Chris mentioned.
DirtDawg
"It'd be alot cooler if you did"
Not this forged vs cast convo again 
the tundras who blew rods almost all put on a smaller pulley and were running higher boost than the system was designed for, resulting in the blown rods. More superchargers were put on tundras than on 100s. Do the math. I would run a supercharger with the stock pulley on a 4.7 with no concerns.
All 4.7s use the same rods.
the tundras who blew rods almost all put on a smaller pulley and were running higher boost than the system was designed for, resulting in the blown rods. More superchargers were put on tundras than on 100s. Do the math. I would run a supercharger with the stock pulley on a 4.7 with no concerns. All 4.7s use the same rods.
Not this forged vs cast convo again
All 4.7s use the same rods.
I stand by my statement. I spent almost an hour reading various stories on the internet relating to trd superchargers, while watching the latest episode of duck dynasty, which was the thing at the time. Soooo I think that means I’m pretty much an expert on the subject.
Very hard to argue with that!
Now if only you could easily find the parts for the TRD kit...
I'd love to rock a supercharger. I'm a bit of a boost addict, some might say.
I'd love to rock a supercharger. I'm a bit of a boost addict, some might say.
2001LC
SILVER Star
All 2UZ 4.7L use forged rods.
For some reason unknown to the public, USA made rods did have issue.
I've read of 1 japanese made rod breaking, it was reportedly over boosted. I've heard and read of many USA made rods breaking in stock engines.
From the Million mile 2005 tundra engine. They look just like what I've seen in Japanese made Land Cruise, GX470 & 4Runner.
For some reason unknown to the public, USA made rods did have issue.
I've read of 1 japanese made rod breaking, it was reportedly over boosted. I've heard and read of many USA made rods breaking in stock engines.
From the Million mile 2005 tundra engine. They look just like what I've seen in Japanese made Land Cruise, GX470 & 4Runner.
Looks to me like the forget one has more mass. That has to put extra loads on bearings/connecting rod. I would suspect a shortening life of the engine.
Does anyone make a supercharger that fits today? Maybe with an ECU tune?
2001LC
SILVER Star
All rod are forged. The early rod used in 1UZ 89-94 can handle the boost, and are said to fit our 2UZ. Toyota went to smaller mass after that. Which is fine for stock. But put on a TC and dial up the boost a little to much and rod gets damaged.
The Alabama engine plant built it's first engine in April 2003
Toyota Motor Manufacturing Alabama | Encyclopedia of Alabama
All 2000-2002 Tundras have a japan built 2UZ-FE, the failures are from guys running smaller pulleys and upping the boost.
Toyota Motor Manufacturing Alabama | Encyclopedia of Alabama
All 2000-2002 Tundras have a japan built 2UZ-FE, the failures are from guys running smaller pulleys and upping the boost.
It's impossible to tell from that pic. The forged rods there are H beam rods that have a totally different design than the more common rods (I Beam, I believe). The cross section would show very thin walls. The pic angle is deceiving.
Mass isn't typically the utmost concern for those strengthened rods, anyways. They're first purpose is to be stronger and allow more power per stroke. Higher mass will affect all sorts of things, but you could sacrifice some rotational mass if it allows you turn up the boost safely.
Do we have a solid consensus yet?
I have a 2005 Tundra with JBA long tube headers and 3" x-pipe dual exhaust, would LOVE to get another 50-100 hp via bolt ons but can't risk the bottom end as I wouldn't be able to afford a rebuild for probably about a year.
I have a 2005 Tundra with JBA long tube headers and 3" x-pipe dual exhaust, would LOVE to get another 50-100 hp via bolt ons but can't risk the bottom end as I wouldn't be able to afford a rebuild for probably about a year.
GTV
SILVER Star
The TRD supercharger is not designed to fit your 2005 vvti engine.
218,000 miles
Super Charger was installed around 150,000 miles. So far no issues! *knock on wood*
Super Charger was installed around 150,000 miles. So far no issues! *knock on wood*
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