whats up? Alright, basically im interested in the SC400 (probably between 1994 and 1997) but i want to know how far i can take it performance wise, and whether or not the car can handle it...

first off is there a turbo kit or kit(s) for the SC400
if so...where can they be found

second...can the stock rods and pistons handle the extra power from a turbo system
if not...where might i find aftermarket engine products such as pistons, rods, cams, crank

any other info is definately welcome

 

id like to extend my questions to the SC300 also

and on another plane of thought...i hear of supra 2jz engine conversions...?! is this possible...and how much would one be looking at in terms of price?

thanks a lot

 

To MY kowledge, there ar no Turbo kits for the 400. A few people are trying to make a supercharger kit, but nothing is official that I know of as of yet. As far as the internals, it can handle mild to moderate hp gains w/o trouble. Your Transmission is more of a concern than the internals.

 

Yes, supra conversion is very possible.
And while noone OFFERS a turbo kit for the 400, there IS one on the blast racing sc400.

Jason

 

SC400
---------
Mechtech makes a twin turbo kit. It reallly doesn't offer that much power, and for the price, you should just get a custom job done.

http://www.mechtech-ms.com/html/turbo.html is the link to their site.

Also there are a few companies looking into superchargers for it. They are available in Japan, but until I see one in person or find someone with one, I won't talk about them.


SC300
---------
2JZ conversions can be done. You're better off turbo'ing the engine that's already in the car, there are many kits out there. In my opinion (and most others on this board) the Toyomoto kit is a MUCH better kit, quality, completeness, etc, than the rest of them. Heres the way to contact the kit manufacturers.

If you're on the east coast I would give Toyomoto a call, 305-599-3050.

If you're on the west, call Turboimports.com (dont have their number handy...hit the web).

Up north there's Sound-Performance.com in Illinois.

There's also a F-Max kit, but it's junk. www.F-Max.com

Give Toyomoto a call, I think most everyone will agree they're tops for the 2JZ. He's done hundreds of Supras, SC300, IS300, GS300, and a ton of other cars.

SR

 

I feel ill every time I see that article. The kit has so much potential, and yet it's such a damned waste they way they built it. One day soon, probably this summer some time, I'm gonna be making a similar WHP figure, normally aspirated. I wanna take that kit from those crackheads and give it to Leo at WR.. he would probably have the car making 800 hp with larger turbos and some actual tuning.

 

As far as the strength of the SC400 internals go; they are quite high. About as high as the 2jz-GTE. Several turbo SC400s in Australia making 1000hp on the stock internals

 

What about the face the 4.0 engine has an aluminum block. Wouldn't it be bad to run high boost on the poor thing? Just wondering.

SR

 

Yeah, if you get into the thermodynamics of aluminum, it's less favorable than iron, because it's less stable and more sensitive to changes in heat and pressure. I've seen plenty of alum. cyl heads warp. Then again, some of the high-dollar stuff is alloy, i.e. Rodek alum block, and others. Basically, if you don't overheat or detonate the motor, you're ok, the alum will actually dissipate the heat of combustion better, thus providing you with cooler, less detonation-prone combustion chambers, and cooler, more oxygen-dense mixtures traveling through the ports, but I personally would rather have a nice cast iron block, when I built domestic motors I used to look for the blocks cast in Mexico, higher nickel content. Oh, and Jeff says Mo has had head gasket issues, who's got the latest on that? We need Todd Matsubura up in this piece.
- JonJon

 

I emailed the muppets at MechTech asking about their turbo setup, and they tried to scare me off with a price. Screw 'em, I'll stick with what I got here... hell, for 15 g's I could pick up an SC300 project car and turbo the thing.

 

Max, you mean Jim McFarland? He's a nice guy, but he told me $15,000 as well. I thought the same thing you did, I could pick up an SC3 and turbo it, and so I will.

 

Compressed intake isn't an option for me without a lot of extra hassle, so I'm going the N/A route with internal engine mods (stroker, which someone in the bay area has already done) cams, headers, porting and extrude honing.

 

Max, someone in the Bay area has stroked a 1UZ? With the C's kit or a custom setup? Spill it, need more info, has he been to a dyno? A track?

 

He used a Toyota Tundra crank and shortened pistons, and apparently he's talked to Leo at WR about tuning his car with an ECU to get more power out of it. I don't know many details - I want to talk to the guy, and see what results are gotten on the dyno. If it's a nice result, I'll do the same thing, or get the C's kit, maybe have Leo pick one up when he's in Hong Kong next or import one from a shop in Japan. I'd rather have the C's setup than a customer setup even if it's more expensive, since I know what I'm getting. Perhaps I could get a crank for a Tundra and get the connecting rods and pistons elsewhere. Depends on what I see. Also, more parts are coming from Asia, Leo's over there till the end of March.

 

Ah, the 4.7 crank. I would love to use that motor, too bad it's 2 bolt mains instead of the 6 bolt splayed arrangement our motors have. When you say shorter pistons, you mean they moved the wristpin further up into the piston, or do you mean shorter rods? I personally would prefer to use as long a rod as possible. I've seen pics of the C's kit and i'm told it increases displacement to a full five litres, that's a big big increase, but by the time you import it, machine the block (with that much stroke, you'll probably have to clearance the block in several places, we'll have to confirm that) build the motor, and do the engine management, you'll probably be looking at around $10,000, not to mention you'll now be bottlenecked by the stock ports and combustion chambers, MAF, T-body, cams, intake manifold, and headers, all of which will probably have to be redone before you start to see serious numbers. Assuming you do nothing but the stroker kit, you're looking at about 10-12% increase in hp, and a good amount more torque, but still a stock SC4 will probably see 300rwhp at best, your car will be somewhere in the mid to high 300's, with headwork, cams, fuel system, and speed density metering, then we could maybe start spanking mild turbo 2JZ's. Now throw a centrifugal blower on there with a FMIC and a 75shot and you've got something. It's the bang for the buck i'm worried about, your thoughts Max?