Bolt on turbo kit (10 Viewers)

[NLXTACY]

That both sucks and blows for us 49 staters. I'd be curious to know what percentage of the final price subsidized the CARB cert process. I certainly understand the business benefit of getting the CARB cert though.

I likely won’t be making that public. There is no benefit to doing so.

 

[KennyBob]

sorry if this has been asked before @NLXTACY , but what are the advantages to this turbo over the trd supercharger? considering something different if it makes sense. On another post I saw it makes about the same amount of boost. I believe one benefit is that the turbo will spool up faster than a sc, correct? Just thought this was a good discussion to have.

As said before the supercharger is discontinued. So there’s that. Also a super charger should come on sooner not later. A big advantage is that turbos use “free” energy from the expelled exhaust gasses. SCs use a belt that causes some parasitic loss that drags on the engine. Arguably not much to worry about, but there ya go.

 

[icorradoi]

The other issue is that the SC isn’t available. It’s also not an option for people in CARB states

Pretty sure the TRD supercharger is CARB approved for our "great" state. Availability, however, is limited at best.

 

[Corbet]

CARB is a benefit for anyone who is forced to smog their truck locally IMO. CA or other.

 

[Heckraiser]

sorry if this has been asked before @NLXTACY , but what are the advantages to this turbo over the trd supercharger? considering something different if it makes sense. On another post I saw it makes about the same amount of boost. I believe one benefit is that the turbo will spool up faster than a sc, correct? Just thought this was a good discussion to have.

Turbo is much more tunable if you want to fiddle with it and increase power. Wastegate spring, boost controller, turbo sizing, intercooler size/type/location etc. All adjustable. IF you want to go crazy, stand alone engine management, injectors/fuel pump, 3" exhaust, etc.

The S/C, you just install it. And if you want to tinker you get a smaller pulley and meth injection. There are basically only two levels of "tune." I have seen a few people put intercoolers on the SC too, but pretty limited options.

 

[cowboyjack]

I don’t need CARB compliance where I live, but I’m just grateful Wits End is putting this kit together. There are not a lot of “easily” available options out there and with Joey, you know it’ll be a first rate system.

 

[NLXTACY]

I don’t need CARB compliance where I live, but I’m just grateful Wits End is putting this kit together. There are not a lot of “easily” available options out there and with Joey, you know it’ll be a first rate system.

That’s the goal. The CARB aspect of it gives me an attainable goal actually. It also keeps the feature creep to a manageable level. I have always had issues with feature creep

 

[iptman]

CARB is a benefit for anyone who is forced to smog their truck locally IMO. CA or other.

Why do you say? CARB is exclusively used in California and is both a visual inspection and smog test right? In Virginia we have smog testing but no visual (does any other state do visual inspections under the hood?). If the kits don't alter the emissions outside of the bounds of any smog test then the CARB cert is irrelevant to buyers outside of California. I'd have no beef if there was no or minimal cost associated with getting something CARB'd. If all they did was test the setup for emissions and if it passes then the setup passes then you'd get no argument from me. What Joey is doing is absolutely admirable but I'm fairly certain if the cost to CARB the kit doubled the final price from $4500 to $9000 (for an extreme example) he'd have a lot less interested people and the math might not add up to produce these kits which would be a damn shame.

Not trying to get in to an argument here, it just sucks that the tail wags the dog when it comes to CARB and the rest of the country.

 

[NLXTACY]

@iptman if that were the case I’d go back to just making fire extinguisher mounts and pretty posters. The compliance approx cost has already been discussed. How it is/isn’t ammortized across the kits is a business decision I’m not going to discuss.

 

[DanMedeiros]

Why do you say? CARB is exclusively used in California and is both a visual inspection and smog test right? In Virginia we have smog testing but no visual (does any other state do visual inspections under the hood?). If the kits don't alter the emissions outside of the bounds of any smog test then the CARB cert is irrelevant to buyers outside of California. I'd have no beef if there was no or minimal cost associated with getting something CARB'd. If all they did was test the setup for emissions and if it passes then the setup passes then you'd get no argument from me. What Joey is doing is absolutely admirable but I'm fairly certain if the cost to CARB the kit doubled the final price from $4500 to $9000 (for an extreme example) he'd have a lot less interested people and the math might not add up to produce these kits which would be a damn shame.

Not trying to get in to an argument here, it just sucks that the tail wags the dog when it comes to CARB and the rest of the country.

Many Western states are CARB states. It sucks

 

[NLXTACY]

16 states currently follow CARB or are about to switch over to using CARB. No point in thinking this is just a greenie CA thing.

The CARB issue concerning this turbo kit though is moot.

 

[yoda-g3]

I vary it depending on my mood but between 14 and 20psi on a stock bottom end with 168,000 miles. But that is not what this kit would run!

We are talking 7-8psi, for a very safe and reliable setup on a stock 80.

Sorry, I'm VERY late to this thread, but you caught my interest here. I'm finding that if I remotely get close to 10psi with my "mostly Safari" setup, it ping like a MOFU on premium. I have 170k on the clock and seems to be solid motor. It had a Unichip for years before I put a wideband on it and discovered that it was running STUPIDLY lean, to the point that it cracked my manifold. (My saga HERE.) So after that $3,500+ learning curve... it's all stock fuel management with a K&N filter.

Do you have something going on for fuel management? I am bringing the old girl out of the garage and might hit the dunes this year and would love to get it up to 10PSI safely if that is realistic.

PS - For those asking why turbo vs SC? It's hard to explain why turbo is SOOO much better. I've had 2 SC'd 4Runners, and my turbo'd 80. The power band of the 80 for all wheeling, especially sand is incredible. (Granted bigger base motor than the 3.4.)

If anyone is in Spokane WA they are welcome to take it for a spin to see the difference.

 

[scottryana]

Sorry 10psi with the stock computer is not realistic. Nothing with engine management at this point.

I agree turbo with good boost is so much nicer!

Sorry, I'm VERY late to this thread, but you caught my interest here. I'm finding that if I remotely get close to 10psi with my "mostly Safari" setup, it ping like a MOFU on premium. I have 170k on the clock and seems to be solid motor. It had a Unichip for years before I put a wideband on it and discovered that it was running STUPIDLY lean, to the point that it cracked my manifold. (My saga HERE.) So after that $3,500+ learning curve... it's all stock fuel management with a K&N filter.

Do you have something going on for fuel management? I am bringing the old girl out of the garage and might hit the dunes this year and would love to get it up to 10PSI safely if that is realistic.

PS - For those asking why turbo vs SC? It's hard to explain why turbo is SOOO much better. I've had 2 SC'd 4Runners, and my turbo'd 80. The power band of the 80 for all wheeling, especially sand is incredible. (Granted bigger base motor than the 3.4.)

If anyone is in Spokane WA they are welcome to take it for a spin to see the difference.

 

[DylanICON]

Sorry 10psi with the stock computer is not realistic. Nothing with engine management at this point.

I agree turbo with good boost is so much nicer!

same situation on my old SC'd Tacoma.
6psi was on the ragged edge. smaller pulley to 8psi required injectors, management, water injection, ect.

 

[HDJdreams]

Is 6 psi enough to fool the 1FZ into thinking it’s 2UZ?

@scottryan fooled a 1FZ into thinking it was a 3UR

 

[LINUS]

What is the target gasoline / octane minimum you guys are tuning for?

Did I miss that somewhere in here already?

 

[Briano]

I'm in the automotive business, and I live in a emissions free part of Colorado, but one thing I can guarantee is that emissions will continue to get more and more strict nation wide, getting this thing carb certified will only protect us all in the future!

 

[yoda-g3]

Sorry 10psi with the stock computer is not realistic. Nothing with engine management at this point.

I agree turbo with good boost is so much nicer!

Shoot, you got my hopes up!

 

[ThomasMore66]

Could you get to 10 psi with larger injectors and a fuel pump upgrade?

 

[Heckraiser]

No. Computer would just cut fuel to the same level as stock anyway. Only way to safely go above 8psi is stand alone, AFAIK.