The point isn't that they don't work. The point is that there's only so much they can compensate for before the suspension geometry has to change.

You may have to. You may also have to buy a keyboard with a functioning shift key.

Then you should have said "I don't know". I knew it had been moved the moment I saw the location of your engine.

Wrong.

Not in relation to the angle of the steering linkage.

As I've been trying to get through your thick skull, if you move the steering rack far enough, it can be unfixable with just a bump steer correction kit.

The Supra7 was unsafe and now sits in a showroom. Ever wonder why with all that horsepower they didn't post some insane quarter mile numbers? It's because the car was trying to change lanes at the end of the track without moving the ******* steering wheel, you dunce.

Yeah, but it makes for less interesting reading, and you just can't reason with a hood rat.

 

haha i love it when people resort to calling names like a 3 year old child! "dunce"
once again you make me laugh jimlab.
i will now stop arguing with you over a small fixable detail such as this and continue posting pictures and video as they come.
sorry for everyone having to read this garbage.

 

Thank You roachdiddy! That's what the rest of us have been waiting to hear!

 

Jimlab is right.

If you lower a car the A arm and steering arm move together staying parallel to each other.

All a bump steer kit does is lower the steering arm at the tie rod connection. If you cant lower it enough for the lower A arm and steering arm to run parallel then you will have bump steer.

This is why you need to know exactly how much you moved the rack. If you moved the rack down 1 3/32" then you need to move the tie rod down the exact same amount. This is something any high end shop would know. They would have taken very exact measurements. Did yours? I have a feeling you may have moved the rack far too much to compensate with a "bump steer kit". Most only have around 2" drop max. After that you run into clearance issue with the wheel.

If you have moved the rack forward or backward them you have opened a whole other can of worms. You should ask Jimlab nicely to tell you about what you screw up by moving it that way. I can remember the names right now. But basically when you turn the wheel one will turn more than the other and all kinds of bad things happen from that.

 

Actually you need to bumpsteer correct more than the amount you lower the rack.

Ackerman.

Howi

 

Do some searching on the forum, roach. I really don't like the guy. But when someone's right, they're right. And yes, you are right, plenty of people swing from ol' jims nuts. I'm definately not one of them.

By moving the rack down, you have created bump steer. Exactly how much is not known unless you give us a solid number of exactly how much you moved the rack down; however, its probably going to be noticable, and yes, probably unsafe, unless you do something to compensate for it. Several people have had very intelligent remarks in ways you can and can't fix this, so I will spare myself the reiteration.

I will add that CarSim is a spectacular program, and with very accurate measurements, the simulation will provide precise results. Bump steer is not a small problem by any means, and it may be in your best interest to spend the couple hundred dollars and get this program. This way, you can see exactly how much you need to compensate at the knuckle to get it back acceptable "factory" standards. This will also tell you whether your steering knuckle will need modified (or probably redesigned and a new one fabricated) due to fore and aft movement, not just lateral.

 

double post

 

A low blow from a short man.

 

Just stating truth.

 

Fixed.

 

Back atcha.

 

Sure is a shame you didn't post a link to that particular post. You're just mad the LSx is obsolete, single cam, ill-mannered, unexciting garbage available at all pep-boys. Youre as classless as your engine choice.

In fact; I'd be willing to bet that the entire reason youre mad at roach(aside from his ignorance) is the fact that you wanted to shove a 2jz in your 7 but realized it was nearly impossible. He stole your ill-fated delusion of grandeur.

Call me when your car starts,
Barban

 

Sure is a shame you didn't post a link to that particular post. You're just mad the LSx is obsolete, single cam, ill-mannered, unexciting garbage available at all pep-boys. Youre as classless as your engine choice.

In fact; I'd be willing to bet that the entire reason youre mad at roach(aside from his ignorance) is the fact that you wanted to shove a 2jz in your 7 but realized it was nearly impossible. He stole your ill-fated delusion of grandeur.

Call me when your car starts,
Barban




couldn't have said it any better seeing how it is all true and now jimlab is going to come with some sort of a ome back that is merely a technical pect of the car and how to justify his knowledge on why the lsx is such a great motor and maybe throw some more bumper steer knowledge in to because he is a genius

 

No, it's a lot simpler than that. I just think you're stupid.

 

Stay awake in school? It shows.

 

owe i am sorry english major. i am suppose to be a genius like you

 

hey a roach diddy im a local from sioux falls and am in the army i now own 2 rex's a 93 and a 94 but im stuck in texas at fort hood sence im in the army for a few more years yet, the swap is the **** is that the motor you took out of another rex and scrapped the projecect for another a 94 just asking cant remember if its the same car from a differrent thread.
anyways ive done the b sport wide body on my 93 was a pain in the *** will be getting ready for pant this week and wanted to give you props on your monster and would ove to see it in person next time im up north if you could give me a call ill pm you with contact info i should be up north some time in september before i deploy to hell again..... anyways thats the sickiest rex ive seen glad to see it come out of my home town. would llove to see what you run out at marian speed way ld be driving up in my 93 in sept would ,ove to get side by side photos
brandon

 

Jimlab, what do you use to calculate bump steer, as well as accommodate for it and determine the limits of correction without changing geometry? SusProg3D? Judging by what you've said about your kit design (engine placement being almost identical to Hinson's), it seems Brian would call your design "unsafe" in that it is too much correction, and I would like to better understand how each of you decide what the limits are. Thanks.

 

my car made 550whp on 15 lbs of boost on e85. tons of room for more power

 

550hp wastegate only pull

 

jimlab=the forum police=gay. Someone's got alot of time on their hands. You society reject.
Who else loathes jimlab as much as I do?

 

very cool

 

SH21284 Can you PM me pics fo your car, I have a similar setup! Thanks!

 

Like I said in Supraforums, congrats on the dyno number Roach!

 

AWESOME Roach! Now for the pics and action vids