1UZ-FE VVTi into IS200

[Billzilla]

Nice set of extractors there, Mos-man.
Looks likda factory with all that gear in place.

[stevevp]

Repco have the shielding It's an ACL Race product

Mos, I'm using the same shielding on mine and as it's an alloy/fibre/alloy sandwich I haven't had any heat transfer issues, so I would say what you have done above the cats will be fine.

[IS200-V8]

Hi guys im new to this site,


nice to see there is more IS200 out there going for the 1UZ ............im doing this swap as well, im still waiting on my 1UZ to get here, so work on the IS is very slow........nice car you have Mos i will be looking back here from time to time .

[Norbie]

Mos is famous the world over.

[ZZE92]

Any more progress now that the 1G is spitting it's timing belt?

[3sgte]

First, thanks for all the pictures, they are better than the Rod Millen conversion video!

Two questions, if I may.

What is the major hassle in regards to running the factory ECU?
Do you mind an MIL due to missing tranny solenoids etc, or does the ECU go into an unacceptable fail-safe mode?

Second is driveline angle and alignment with regards to the diff.

Are you going to use donuts like the LS, or U-joints like the IS?

[sideshow]

hardest thing is security on ecu

its not really hard its expensive
have seen prices ranging up to 700 dollars for recoding the keys if it works

u cannot remove security on toyota ecus
u have to wire up the key reader to the ecu and get some keys coded to suit

i looked into it and machines to do the job cost anyhting up to 45 g

[The Witzl]

Where Mos has a will, Mos has a way....


I'm getting really keen to see this thing running and doing skids Mos!!

[MR 1JZ]

+1 on vote for skids

[Mos]

Where Mos has a will, Mos has a way....

Tell me where to find some of that former stuff.

I'm getting really keen to see this thing running and doing skids Mos!!

Sorry, I'm not from Adelaide

I spose I should add some updates.... maybe later

Mos.

[wagonist]

wow, the words "Mos" & "skids" in the same sentence, I never thought I'd see the day...

Likewise really keen to see this getting further.
Are you doing anything with the front brakes? I've been trying to find out whether supra stuff will fit, but apparently not. Maybe need to go the nissan route like for the Cressida.

[Mos]

Are you doing anything with the front brakes? I've been trying to find out whether supra stuff will fit, but apparently not. Maybe need to go the nissan route like for the Cressida.

The factory IS200 brakes are actually bigger than the BA discs (in terms of thermal mass - 2mm smaller in diameter, 2mm thicker disc)... so other than 4 pots there's absolutely no reason at all to use the cressida upgrade, which incidently doesn't bolt up anyway.

But yes, brakes are being considered.

Mos.

[3sgte]

I don't know if you have access to part numbers to confirm for your vehicle, but the US spec IS300 carried the same brakes as the GS400.

The numbers I have for the US spec GS300/400 are:
(front) (DxT) 296x32 mm Calipers (unknown)
For the US spec IS:
(front) (DxT) 296x32 mm Calipers PE45T

In the States and Canada at least, those discs go back all the way to a 1993 GS300 without any size changes.

That being the case, assuming that your IS doesn't have brakes smaller than the IS300, I would say you are good.

I heard, but cannot verify personally, that the older Altezzas had smaller brakes. Apparently they got fitted with larger brakes circa 2001 MY.

[Mos]

The discs are 296x32 - standard across (virtually) the entire range of RWDs until the current LS430 which has larger discs and 4 pots. Aristos, celsiors, altezzas, soarers, atmo supras, later chasers all had the same front brakes.

Given that the IS200 is the lightest chassis fitted with the same brakes as the LS400 I'd say there is absolutely no issue with braking capacity even with significant power upgrades - upgrading is merely a "nice" thing to do that would probably only show a perceivable benefit on a racetrack. The cressida upgrades provide less thermal mass for a heavier car.

All model years have the same brakes - to my knowledge there are no smaller brake Altezzas, so I'd have to dismiss that as a rumour without evidence... sorry.

Mos.

[3sgte]

Apoligies for non Aussie info, however in the States/Canada there are a number of brake variations.

LS had a couple of varations, and from 1995 to 2000 it came with 4-pot alloy front calipers, and discs that measured 315x28

2001 LS 430 onward saw 315x30

LS 1993-94 had the discs the same size as the GS.

LS from 1990-1992 had smaller discs that fit into 15 inch wheels 275x25

I could have sworn that SC 400 also had different frt discs, but damned If I can find reference for that. Write that off as my flaky memory perhaps.

Canada only saw Turbo Supras from 1993, so those were the big brakes.

I'll try to do some digging on the Altezza thing. I won't sully this thread with any more tangent.