phattyduck
Elite Member
My non-supercharged 5VZ is noisy with 87... yeah, definitely 91 or better with a supercharger.No freaking way I'd ever do that.
-Charlie
My non-supercharged 5VZ is noisy with 87... yeah, definitely 91 or better with a supercharger.No freaking way I'd ever do that.
Thank you for the details.
I wonder how much low elevation versus high elevation operation changes the user experience with these blowers?
I'd like to invest in one of these TVS set ups, but I'll be completely honest, I got tired of packing around a laptop to tune stuff along time ago. I just don't have that kind of time or patience to tinker anymore. my brother and I even created a rule, no tuning or wrenching on play days. Shop only...lol. Some of the stupid stuff we used to do like adjusting needle clips on carburetors in the middle of nowhere, super heavy, toolboxes, and getting Duramax transmission tuning to be happy in the middle of the night with a laptop.
Part of the learning curve I guess..... or the insanity.....lol.
FWIW-My experiences with the gen 2 (black m62) over the years. Long post, but maybe good info for some on the fence.
I drive 53 miles each way to work on windy rural roads with lots of accel/decel cycles, and I drive hard. Once at work I drive around a mine site all day on dirt, sand and mud for hours at each day. 110* summers and radiator jammed with mud winters. They all towed a small dirt bike trailer with 1-3 bikes, spare parts and firewood all over the Sierra Nevadas and Rockies until I picked up a sprinter van about a year ago. So these rigs had a rough life!
Got a used 2nd gen off ebay. Didn't check anything on the supercharger, just bolted it on per the instructions.
97 4R, auto 4x4 on 255/85's. Had about 250k miles when I put the blower on. It had no major rebuilds before this- still factory engine, heads, trans etc. Just normal replace the bad alternator kinda stuff, most major work was a timing belt at ~225. Everything seemed healthy at that point though. With blower it ran great, had a slight audible ping in high gear light throttle rolling into a bit more throttle. Think cruising at 55 and giving it slightly more gas to keep speed on a slight incline. Any more gas than that and no ping. It had 4.10's, I put 4.30's in when I found an ARB for cheap. It liked the gears for sure, hit that narrow ping range even less. I added 7th injector setup, didn't adjust tuning at all. Made more power and no ping. Eventually ran a 2.1 pulley and still didn't mess with 7th programming. At about 350k it got smacked on the fwy. Motor and trans were still happy then. I had a A/F gauge on it and it stayed close enough to perfect I didn't bother tuning the 7th stuff.
Took the same blower and put it on a 97 taco, no 7th, back to stock pulley, and no A/F gauge this time. Similar running gear Auto w/4.30's and 255/85's. The Taco ran great, it felt as quick as the 4runner was with 7th and pulley. The taco was a $500 ~300K mile beater with a bad water pump and rod knock when I got it. I put a water pump on it and it ran for two and a half years as I described above to work and back each day. Rod knock the whole time, sounded like it could nuke itself any moment. Had the same light load low rpm ping. Finally took out a head gasket when the water pump pulley sheared off in a remote area and I overheated it trying to limp it back to the Maint shop.
Took the blower off and sold the taco to a buddy to build. I still haven't done a nose cone or any maint on it. Put it on my current 99 4R auto at about 225k, running great still at 265k. Am considering 7th injector and 2.1 pulley again or maybe dump some money into the new blower, pulley and 7th. If I keep the 2nd gen I'll go through the bearings etc too.
The blower gives these 3.4's enough power to counteract all the weight I've added to them. Full skids, roof rack, bumper, tire swing out, ARB fridge and tools ect inside. Current one is right around 6-6,200lbs when I roll across the scales at the mine.
I've put probably 250-300k miles on this blower, most of those on regular CA 87 unleaded gas I pump at the mine (work vehicle so I get free company fleet gas!). I really don't think these push the 3.4 motor "to the edge" or "it's a coin toss once you bolt it on" like some say. The Taco motor was terminal when I bought it, lasted over 2 years and STILL didn't succumb to a boost related failure. With pulley swaps yea you're getting into the danger zone without doing some fuel and timing solutions. As delivered I think a generally healthy 3.4 and auto is plenty stout to handle the slightly lean tune they run without mods.
I dunno with the new version, yea lower boost and bigger rotors. But at similar power level with the same injectors and ECU it should logic out to a similar additional thermal and physical strain on internals? It takes X amount of air, gas and Cyl pressure to make a certain HP level, after all.
Maybe I've just been really lucky, I dunno? If so I hope my luck continues!
Elevation plays a big part. I live at sea level and so do the above mentioned performance companies. I am not sure if the TVS1320 runs at more acceptable levels at high elevation as the stock ECU fuel map is pretty rigid. What I mean by that is that in open loop, it defaults to pre-programmed values based on the flow measured by the MAF sensor and that's it. It can't sense boost as we don't have a MAP sensor so it just goes lean.
I can totally understand the tuning piece. I spent a long time getting my tune right and Toyotas are possibly the hardest manufacturers to tune out of all of them. If you are after simplicity and reliability I recommend waiting a little while and get a 2nd gen M62 used for cheap in the first half of next year when people start to flood the used market with them for the TVS1320. It'll be 100% bolt on for you with no tune needed. Encouraged, but not needed.
Think the m62 will cheapen up? Doesn't seem to have softened much yet pricing wise.
I don't know that I'll ever chase big power with the 5vz. I'd very likely run the stock pulley. I'm just trying to bring it a little closer to modern power without all without the drama. That was the reason that the TVS is/was so appealing to me, lower pressure and lower heat. It's unfortunate that they seem to have issues running lean though.
Starting to feel like maybe I just need to go the route of gears and leaving it at that.
These newer vehicles are just stupid fast. My 23' tundra just rips. I used to think my sienna was fast. The tundra is way faster than my sienna and my old tundra. But they are slow compared to all of these Teslas I see driving around. I was in the bay area last week. It's just silly watching those Tesla's squirt in and out of traffic. Good grief are they fast. An entirely different category of acceleration.
Did he say he ran 87 octane on the supercharged engine!?
Its back-end pricing with consideration to the general supply and demand. Both research and development and generally operating a machine shop costs a lot of money, and they have to recoup it somehow in a limited market. Not uncommon at all - even big fish like DuPont actively do this with their products even though they're rolling in it.
I sure do. The fleet gas at the work is 87 and the price is right $0.00/gallon. When I fill at a gas station I put 91 in it. But that is pretty rare-maybe every 10th tank or so. I have a truck allowance and free gas so it makes the low octane "worth it" to run. 4runner is 90% work driving- the commute and around the mine site.
Def not the preferred octane but just paying a little attention and avoiding the light throttle on light load ping has been no problem. I probably miss it sometimes as I always have the stereo on and avoid it "by habit". Ran the 87 gas in the Tacoma and now the 99 4runner I mentioned in original post.
Certainly I don't recommend running 87 and no fuel/tuning mods....but the huge amount of "YOU'LL BLOW IT UP INSTANTLY AND KICK PUPPIES" posts are misleading for those considering putting a blower on. Due to my job setup I'm kinda an extreme example of doing all the no-no's and it being fine.
I'm in Sacramento area, the mine is at ~350' of elevation.
Selling different octane than stated on the pump violates federal and state laws.
I sure do. The fleet gas at the work is 87 and the price is right $0.00/gallon. When I fill at a gas station I put 91 in it. But that is pretty rare-maybe every 10th tank or so. I have a truck allowance and free gas so it makes the low octane "worth it" to run. 4runner is 90% work driving- the commute and around the mine site.
Def not the preferred octane but just paying a little attention and avoiding the light throttle on light load ping has been no problem. I probably miss it sometimes as I always have the stereo on and avoid it "by habit". Ran the 87 gas in the Tacoma and now the 99 4runner I mentioned in original post.
Certainly I don't recommend running 87 and no fuel/tuning mods....but the huge amount of "YOU'LL BLOW IT UP INSTANTLY AND KICK PUPPIES" posts are misleading for those considering putting a blower on. Due to my job setup I'm kinda an extreme example of doing all the no-no's and it being fine.
I'm in Sacramento area, the mine is at ~350' of elevation.