Im looking into doing the 1jz swap..what are the largest twin turbos that with fit under the hood of my 98 sc300

 

go single, not twin, go big big single!!!

 

i agree with what he says go a big single you wont be disappointed!

 

... you know i hear twin t28 bb's from s15's would be nice . just an idea...

 

twin gt2835!!! that's what i want to do at least.

 

Single GT35R I would suggest...That is what I am going for...It's cheaper, not alot of lag time, good fit for the motor, and can make pretty good power...No need for a more expensive twin unless you really want something nasty like Ryan and his Sc400TT.....

 

Since the topic is twins not singles. I have personally seen twin 3037s under the hood of a SC. If we fit GT47s under our hoods, any off the shelf twin kits will fit.

 

Ok go BIG and get twin GT47's and boost the hell out of both of them......

 

thanks for the help..a little off the subject but I found a aristo(engine,tranny,ecu) would that be a better starting point than the 1jz

 

that depends on two things budget and hp goals

 

I what streetable horsepower ,nothing to crazy. Probably looking to make around 625 wheel horse. I was gunna keep it auto too( I know thatll call lots of responses.) I was looking at getting the boost logic buuilt tranny and a torque converter.

 

lmao. Streetable and nothing crazy and 625rwhp in the same sentence. Have you been in a 500rwhp sc300 or supra? they're freakin really FAST imho.. If you really care about being very streetable, lower the power goal and enjoy a wider torque curve w/ instant response..i promise you it's fun on the street!

 

Quite a few people are rockin the HKS T3G kit (and they fit on the stock 1JZ dumps AFAIK), dunno if they still available though.

 

625 can be streetable very easily. It is scary to get into it because of how the car picks up and takes off. But that isnt what makes acar streetable or not in my book.

Not streetable is high stall torque converters, or clutches that take two feet to push in and have no engagement zone, they are either engaged or not engaged. Not streetable is cars that wont idle because the injectors are so big or the cams are so radical etc.
At least thats my opinion

 

My point was more along the lines of "how streetable will your car be at that ~625rwhp level?" If you want a car with that high a peak horsepower that you won't use driving normally everywhere around town, yea sure it can be streetable, but you won't be using all that power and when you do it will only be at high speeds...assuming you have traction . Tuning, transmission upgrades, and turbo size will play a huge role in determining how the power engages...it can be an on/off switch (not streetable) or a smooth power increase (streetable). If you do go through with this 625rwhp street beast, please get some kind of radar/laser detector & VERY good brakes because you will cover a lot of street quickly above 100mph. just my $0.02.