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Lowering Springs And Hp

901 Views 7 Replies 5 Participants Last post by  nailmark
I was getting my 90 AWD alligned after installing Ingalls rear upper control arms. I was adjusting for to much camber resulting from lowering springs (1.7 inch INTRAX).
My mechanic, who is extremely knowledgable regarding performance mods to all kinds of cars, says that because of the severe angle of my CV joints (Due to the lowering springs) I'm much more vulnerable to breaking axels. I hope to be making @ 450 HP when I sort out boost retard or water injection (I won't bore you with all the mods).
So, my question is: If I'm not into sexy ride height and I'm more into performance (Especially Drag racing), would the 1g AWD platform benefit more from stiffer springs at stock ride height than lowering springs? I think I know the answer, but alot of you guys reading this could help "splain" this to me better. Thanks
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Ha, You probably just opened this cause you thought someone smart was answering my question.
Well, all the lowering springs do is make the center of gravity lower, so your handling increases. If you're going for the drag strip and not to worried about steet races, I'de go with stiffer suspension rather then lowering it. Especially if you're pushing 450 out of that, when you take off the line the car is gonna throw back and if it's lowered the tires could hit the wheel well (if you cut the bump stops out, which you should)
In theory I guess he is right. I have heard the argument before. In the real world I have never heard of people with lowered cars snapping axles for this reason.
How much does the angle change? It is only a 1.7" drop; it can't be more than a couple degrees.

With a 1.7 drop and a 16" axle length (guess); the angle change would be about 6 degrees.
Thanks all for the replies. My Intrax springs were on the car when I got it and they are beat. I think they might not even be the right ones, cause I've recently noticed that there are only a couple coils in the middle of the rear ones that are not coil to coil contact. Thats why I think I have such a radical angle. I havent measured the drop, but it must be way lower than its supposed to be. I've been so wrapped up with tuning and engine mods, I did not discover this till I was installing the Ingals rear uppers. I have my 91 Talon apart to re seal the trans case (Put in a PHantom grip), replace a cracked Trans end case (They sent me one for a F5M so I have to re-order), and replaced the steering rack (Leaking). It has stock springs and KYBs; what an awsome ride. I have orderd Eibach Pro Kit for my 90 AWD and expect to have a better ride. I'll probably have an easier time getting my exhaust over speed bumps, too. If my shocks (KYBS) won't be enough help stiffen it up on launch, are AGXs the way to go? Also, does anyone know where I can order transmission parts other than Dealers who can seem to get it right?
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Well, I got KYB AGX shocks on my car and I'm very impressed. They can change the stiffness without any tools, although I usually keep mine about %30 stiffer at all times. With AGX's on there and the Eibach kit, you should be good to go, just make sure you make that stiff as hell.
Mike said:
I was getting my 90 AWD alligned after installing Ingalls rear upper control arms. I was adjusting for to much camber resulting from lowering springs (1.7 inch INTRAX).
My mechanic, who is extremely knowledgable regarding performance mods to all kinds of cars, says that because of the severe angle of my CV joints (Due to the lowering springs) I'm much more vulnerable to breaking axels. I hope to be making @ 450 HP when I sort out boost retard or water injection (I won't bore you with all the mods).
So, my question is: If I'm not into sexy ride height and I'm more into performance (Especially Drag racing), would the 1g AWD platform benefit more from stiffer springs at stock ride height than lowering springs? I think I know the answer, but alot of you guys reading this could help "splain" this to me better. Thanks
Wtf? Think logically about this. The angle on the cv joint gets better as you lower a car. the angle gets smaller, causing less stress on joint.
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