Frankdorn

iTrader: (7)

So add a walbro and high-flow injectors you're saying? Could I get by on 93 octane w/o a significant meltdown risk at 9psi?

IAGS400

The setup on the web site has the supercharger blowing down into the intake, in order to cool the air you would need to put a water to air intercooler in the intake between the supercharger and the heads, which means you would need to raise up the supercharger to make room for the intercooler.

You could invert the supercharger and then do a conventional air to air intercooler like the RM kit but I don't think there is enough room to go that route.

IAGS400

Add methanol injection to cool down the air and it shouldn't be a problem.

GS FONZy

iTrader: (6)

From what I was told, no. Unless meth/h2o injected to keep from having detonation problems.

Frankdorn

iTrader: (7)

I'd rather slice my hood open and lay a bubble over the hole to clear the intercooled SC...I think. What about a thicker headgasket?

BLAZE

iTrader: (2)

Bud, no offense, but if you want to go fi on gs4 you got a lot of homework to dowish I bought a gs3 instead

IAGS400

The IC would need to be about .5 inches thick.

GS FONZy

iTrader: (6)

what about it you lower your compression. Do you know why you are asking this question?

Frankdorn

iTrader: (7)

What is it that I'm not seeing? ...that's why I'm asking these questions--they're all out of "How to Supercharge Your 1uz-fe w/ vvti" at Barnes & Noble.

What about it you lower your compression. Do you know why you are asking this question?

Wouldn't lowering the compression help a little with the detonation risk, and getting a steel hg help with durability?

I'm mechanically inclined, but not a car expert, so I'm just feeling out how hard this project would be before pursuing it... A Bullet kit retro doesn't sound impossible with some guidance and a mill...

Lextreme

The 1uzfe from 1989 to 1997 and 1998 to 2000 are different. The manifold WILL NOT work on the GS400. The two engines have different head/manifold angle. Perhaps u should look into the Tundra TRD M90 supercharger. Its a direct bolt on.

GS FONZy

iTrader: (6)

It will bolt on the post 97 1uzfe? What year Tundra S/C?

Lextreme

97 and 98 are diferent. Bullet will bolt on the 1997 but not 1998. I think Tundra started in 1998.

GS FONZy

iTrader: (6)

post 97, meaning the 98 model, vvti. I did some searching and came up empty since that SC is no longer available. If you find a used one, the hood will need to be moded to clear the sc. Also, we would need to figure out how to tune it because I doubt the ecu will work on our cars.

GILLEXUS

iTrader: (14)

FYI,
Maybe check w/ a few of the SC400 guys, good source of infro. A few of them have done a roots style S/C . I know its not the VVTI motor.
I believe ScottURnot used an Eaton M90 he may have info. on if they make an adapter plate that will allow it to mat up w/98+ intake/manifold.
Just a thought.

https://www.clublexus.com/forums/sho...d.php?t=240378

Frankdorn

iTrader: (7)

It looks like Richwood Technologies is coming out with a supercharger kit:

----- Original Message -----
To: richwoodtechnologies@bigpond.com
Sent: Sunday, March 02, 2008 3:06 AM
Subject: GS400/430 supercharger?

"Do you make an Eaton M90 supercharger kit for the iuz-fe vvti V8 found in the 2nd gen Lexus GS 400/430?"

Reply:

"Yes we do, it is a fully Integrated supercharger, we will be releasing this shortly. Please check our web-site www.i-charger.com for updates.
Regards
Andrew"