Hello Everyone, i have a 2001 LS430 and i am interested to boosting the numbers up from factory performance. i have done some research like kelford cams and valves. i am currently getting a muffler fabbed by someone in the group, just wanted some input on what else is possible. i have time so im interested in those rare parts ( Greedy SC ). this is the first time i mod a car, been busy with college i have only used the ls430 as a daily the past 4 years, but now that i have paid it off i really want to wake up this motor. thanks in advance

 

Contact FIGS engineering for $7000-$9000 you can have a supercharger kit with ecu, supercharger etc. Also there is ppe headers$900-$1300, obx headers $600, custom exhaust $500-$1000, BC had a stroker kit for the 3uz which bumped it up to a 4.7 liter that was $1500.

If you really want to make your car faster go to a driving school and learn how to drive properly take lines, understamd apexes all that stuff. A remotely good driver can make a slow car relatively fast.

Also another spot would be to address the cars weak points which is handling. You also said this is your first time modding a car, word of advice always research, before you buy stuff or mod, If you buy something thats slightly cheaper you might end up finding it does not work and have to buy the more expensive one as well.

 

Welcome to the club. Loads of very informative members on here in regards to performance upgrades. Where in Illinois are you??

 

The LS430 chassis, while very well built, is still pretty floppy, and the pissant sway bars that were fitted do no favours to the handling. It rolls about worse than my old 15ft boat in a slight bit of chop. There were uprated strut tower bars, sway bars and subframe braces available for them but I think Ultra Racing has discontinued those. You might be able to get them made on special order though. Also, a decent set of brake rotors and pads will benefit a 430 heaps.

If you want more power, be prepared to spend decent money. The 3UZ blocks can only take about 600hp at the crank, as they have pretty thin cylinder walls and liners as a result of Toyota boring out the 1UZ block to the max, and while the stock internals are relatively stout, (I think they are broadly the same as 1UZ VVTi internals), you'll soon find their limits with forced induction. If you wanted big power beyond that, I'd be looking at a hybrid engine, basically a 2UZ iron block with aftermarket 1UZ rods and crank, and custom pistons. Or just jam a built 1UZ in there and put lots of boost down its throat.

Aside from what's already mentioned, there's not really a whole lot else out there for the 3UZ. And what is already here is reasonably expensive. If you want a cheaper option, I'd go smaller like an All Trac ST185 Celica or an SW20 MR2, or a Corolla with a 20v 4A-GE swap

 

Yah man the 3uz platform has 0 help and modding the ls430 is $$$$$$$. I know firsthand I have way to much money in my ls430 haha. The op could do a 2uz block get the wrist pins upgraded, 5spd 1r54 out of a supra, thor racing bellhousing adapter plate, standalone ecu, then boost it and your good to go its about $12,000 to boost a 3uz motor properly

 

Extrude hone the intake manifold....

Check out my post on 1999 LS400 section
(Same intake as 2001-2006 LS430)

 

BC had a stroker kit for the 3uz which bumped it up to a 4.7 liter that was $1500.
Never happened, more like $6,000.

 

Yah they did make a stroker kit for the 3uz but it was $7000 I confused it with something else good catch.

 

Cant I just walnut blast the intake manifold and isnt that the same thing, that abrasive clay goes to the path of least resistance which is not always how airflows then port the intake and call it a day.

 

The stroker looks like 90.5mm (+8mm) if used with stock bore for 4,709cc & 287.35" (+9.7%).
The high stroker price is because you're not just getting the new crankshaft, you're also getting stronger rods and (I think) forged pistons + it's already balanced.
Why not?
Because the displacement change adds very little (you don't get 9.7% more power) - it's what you do when you've done everything else. It's probably $200 per HP gained.

 

Walnut was chosen specifically it doesn't remove any metal.
Extrude-Hone can't follow the "natural" air path (you shouldn't try to make air go where you want, but find out where it wants to go and help) but it's an improvement, and the next step (actual internal porting) is $$$. The best manifold work involves cutting through the plenum above the runners horizontally to expose all the passages, then welding (if it must look stock) or epoxying the top back on.
The UZ manifold problem (in the cars) is that the plenum is depressed w/r/t the runner entrances for hood clearance.

 

Yah so i will just do a rear mount turbo and call it a day, if I want to add more power lol

 

What about using the "fish" bracket from supra store to add a Vortec SC to one. You can generally find hose SC's for fairly cheap since so many were sold and used on mustangs and camaros back in the day.

https://www.suprastore.com/suxat1uz2uz3.html

Could you get away with 5-6PSI on the stock ecu??? may be a fairly cheap-ish way to get an extra 70HP or so.

 

You need an intake manifold adapter plate to attach a roots style and a centrifugal super charger well there is 0 room in the engine bay for one without doing some major relocation to certain items.

 

What am I missing here? why would you need a intake adapter for a centrifugal? I get the roots but i've had 2 cars before with centrifugal's on them and didn't need an intake adapter.
The 1UZ builds i've seen using them don't use an intake adapter either.