4000Q 5-bolt Conversion Completed!

[Ken Keith]

Thanks for the write-up Gary!

This is one of many (at least two) methods for converting to 5 bolts, 
right?  I think other's have used 5ktq front strut assemblies on 
4kq's.

Contrasting the different methods might be interesting.  I think 
since I will have a 5-bolt 5k front suspension to cannibalize, that I 
would probably go that way.  I heard that's a lot of work tho'.

I believe Martin Pajak and Tim Valencia went this method, iirc.

I do prefer the look of 5-bolts, as far as aesthetics.

Ken

Gary.Kaklikian at compaq.com wrote:
> 
> The 5-bolt conversion on my 4000tq is complete, but only after a lot
> of expense, headaches and hard work!  If anyone else is considering
> this conversion, my advice is -- forget it, unless you want to spend
> the money for an UrQ suspension, at least the front. But, on the other
> hand, there are a lot of benefits to using the setup I did. In the
> front, I have a combination of 4000q, 90Q20v, 80Q10v, and UrS4 parts,
> with a bit of machining to the hub thrown in for good measure!
> Hopefully, I can remember what model each part came from when
> something needs to be replaced! This setup increases the front wheel
> bearing diameter from 68mm to 82mm, has a much beefier outer CV, and
> increases the front track by ~2". Plus, the 2-piece strut allows for
> easier maintenance and more negative camber. Once the front suspension
> was complete, the next problem was the brakes. My A8 rotors were no
> longer centered correctly on my 996 calipers. So, I had to switch to a
> S8 rotor with a deeper hat, at 322x32mm vs. the A8's 312x25mm. All
> well and good, except the 16" tires and wheels I just bought won't fit
> over the brakes now,  so up to 17" it is. In the rear, the 5ktq hubs
> worked fine with the original 4000q setup, but the 4000q rotors had to
> be redrilled for 5x112, since the hat depth is different on the 5ktq
> rotors. I'm running 25mm wheel spacers in the rear to match the front
> track increase and will be using 235/40-17 track tires.  And the
> fenders have been cut out all the way around. I hope the springs can
> handle the wider track and the alignment settings work out. How all of
> this will impact the handling I don't know yet, but I can only imagine
>  grip levels will be much higher. Plus,  the taller gearing should
> really help, particularly on the track.   Again, if anyone is
> considering doing this for street use, DON'T! It's not worth the
> trouble simply to use 5-bolt wheels. Thanks to everyone on the list
> who offered advice, assistance, and even criticism! Gary Kaklikian '86
> 4ktq '92 S4