Clownmeat's build thread
- Thread starter Clownmeat
- Start date
Clownmeat
New member
Alomst turbocharged
Couldn't take video driving because there was too much vibration for my hard drive camera.
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Couldn't take video driving because there was too much vibration for my hard drive camera.
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Clownmeat
New member
Thanks. I know the 3.4 is an awesome engine and lasts forever but after owning a 4.7 tundra before this thing I really miss the power. So I figured a turbocharger would be my best bet to wake up the 4runner, and by doing it all myself it would be way cheaper than a bolt on kit or a supercharger.
Clownmeat
New member
Probably not. Nobody around here has one, had my racecar for 5 years now and never been on a dyno. General rule with turbo's is 10hp for every pound of boost so should be somewhere around 250hp at 7psi.
Clownmeat
New member
Hopefully I will have better luck than previous turbo guy.
t4r4life
Elite Member
well he was running way more than 7psi
BigFishAllDay
New member
Nice work on the turbo setup so far. I skimmed through the build last night, but I don't remember seeing what kind of turbo you're using? What are the specs on it?
I looked at Squire's setups a looooong time ago, and considered that setup, but I just don't see a turbo's powerband being as useable on a truck as a that of a supercharger.
Regarding ^^^^.... All I can say, and I'm sure you already know, is you'd better keep your eyes off the boost controller. Put it in a locked box and throw away the key... otherwise it'll just be a matter of time.
I'll just go to 8 psi...
Ok, ok, just one more, 9psi... but THAT'S IT!!
(a month later)
10 psi will be plenty... I'll stop there.
....
...............
..................................... It's just so easy to keep pushing it with a turbo.
I looked at Squire's setups a looooong time ago, and considered that setup, but I just don't see a turbo's powerband being as useable on a truck as a that of a supercharger.
Regarding ^^^^.... All I can say, and I'm sure you already know, is you'd better keep your eyes off the boost controller. Put it in a locked box and throw away the key... otherwise it'll just be a matter of time.
I'll just go to 8 psi...
Ok, ok, just one more, 9psi... but THAT'S IT!!
(a month later)
10 psi will be plenty... I'll stop there.
....
...............
..................................... It's just so easy to keep pushing it with a turbo.
BigFishAllDay
New member
Sounds like a good size... might have gone a little smaller on the AR but if you say it spools right up off idle, I'll believe you.
That would be my main concern, is getting something that was in boost by 2K rpm's. When I first saw your thread I was thinking that this setup, combined with a good bit of 'wheeling, would be a great recipe for broken drivetrain parts if you went w/a peaky turbo.
What brand? Ball bearing?
I'm really looking forward to seeing how you get this thing tuned. I have a feeling that will be your biggest challenge.
That would be my main concern, is getting something that was in boost by 2K rpm's. When I first saw your thread I was thinking that this setup, combined with a good bit of 'wheeling, would be a great recipe for broken drivetrain parts if you went w/a peaky turbo.
What brand? Ball bearing?
I'm really looking forward to seeing how you get this thing tuned. I have a feeling that will be your biggest challenge.
t4r4life
Elite Member
why would he if the BOV lets out all the boost then he wont be getting power from the turbo when hes wheeling.
BigFishAllDay
New member
The BOV isn't going to know that he's wheeling and let out all the boost...LMAO...it only "lets out all the boost" when you're getting on it and you suddenly release the throttle. It vents the boost to prevent the pressure in the intake tract from surging back through the compressor wheel and damaging the turbo.
Think about it... how often are you flooring it, then getting all the way off it when you wheel? Not much. That's they only time the blowoff valve comes into play.
What I was getting at is that the wrong turbo setup would result in a turbo that spooled up FAST and suddenly at a certain rpm... taking HP from say 100 to 250, 275, whatever peak HP is, within about 500 rpms. The BOV isn't going to suddenly save your ass if you're going up an obstacle with a setup like that and have to stab it and suddenly you're under full boost and a wheel lifts and starts free-wheeling, then finds solid traction.
t4r4life
Elite Member
i see what you are saying. looks like i need to do some more research haha
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