you should have no issues running 7psi on that monster!

Can't wait to see the end result

 

^ Im hoping for ~8.5 with the lower compression ratio compared to the IS.

 

what software do you use to tune these engines?

 

called topspeed auto and they have no clue on these arms.. PASSNU!!! WHERE DID YOU GET THESE GEMS?!?!???

 

ok so the guy at top speed said that it looks like the front arms are for the is300.. is this correct? i asked my friend at lexus about this so hoping to get an answer shortly...

 

I would say the IS250/IS350 (2IS) vs. the IS300 (1IS) is correct. Mike did mention that about the rear arms he purchased.

 

im talking about the ones for the fronts.. but it looks like its everywhere on ebay right now and they look very high quality..

 

Right...I know you're talking about the fronts. I mention the rears because he mentioned his rears were for the 2IS so i'm assuming that the fronts are also 2IS.

 

gotcha.. yeah i couldnt find anything for the 2is regarding the fronts and they look exactly like the ones for the is300s... hope to hear about this soon because i need to pull the trigger asap.. also lexus told me that is300 and our gs350 arms are not the same.. passnu mustve dug a lot deeper to figure this out..

 

The front camber arms that Mike is using on our 3GS is the Topspeed Is300 ones...

 

YEESSS!!!!! Thanks buddy!! and dude, we gotta get our rides together.. mines is in the shop at the moment but im running 20x9 0 and 20x11 -6...

 

Yes the rears are for the ISx50, the front is meant for IS300. The fronts bolted up as I showed but I never tested them out and I havent taken my car for alignment. The rears are a direct match since the ISx50 and 3gen GS use the same parts. The front is not a direct match FYI...but it does bolt up.

Post how it goes since my car is still in pieces.

 

ok will let you know.. hopefully it will work out ok but we shall see.... i figure as long as it bolts up all right... thanks for the response!

 

Here is an update for everyone. I was able to get a Megan Racing Rear camber kit for our car. I purchased the same one that Passnu2 did. It was a Isx50 camber kit. I went ahead and installed it today but definately need a alignment now because the toe is off. Here are some pictures.

 

I'm not quite sure that only having one of the two upper control arms adjustable will help. Obviously you can answer that. Were you able to successfully adjust (either negative or positive) the camber with just one of the two arms replaced? To me, the upper arm on the right should also be replaced to properly allow the knuckle to "tip" either in or out to adjust camber. But, maybe I'm wrong. Please let us know! It'll be great if we can get away with just one of the two. Thanks