TR7 & TR8 Mailing List

Steering rack swap?

0 Members and 1 Guest are viewing this topic.

William Parris

Steering rack swap?
« on: September 15, 2018, 09:27:45 PM »
Anyone out there find a suitable manual rack replacement for the TR7/8 that is

a quicker ratio.  I donbt mind fabricating.



Will

--

.

Archives provided courtesy  http://www.triumphwedgeowners.org



Bill

Re: Steering rack swap?
« Reply #1 on: September 17, 2018, 07:57:03 AM »
Back in the day Demon Tweeks had a fast ratio manual rack, I still have

the catalog that lists it.B  Their purchasing department may know where

they bought them.B  All we need is the gears & the rack.B  I think I tried

that from the USA but hit a dead end before getting to their purchasing

department.



I know several gearmakers who could reverse engineer & manufacture but

we would need at least 10 units to get the price down, and with the

economy this hot they have higher margin business to chase.



I would dearly love to have one as the TR8 power unit is faster but a

heavy abomination of 1950's "technology".

"ian@nounsleysurveying.co.uk"

Re: Steering rack swap?
« Reply #2 on: September 17, 2018, 09:17:13 AM »
Have you spoken to Steve at S&S in the UK they do a quick rack.



Cheers

Ian

Ian Freeman. Sent from my Huawei Mobile



---

William Parris

Re: Steering rack swap?
« Reply #3 on: September 17, 2018, 09:54:51 AM »
Yes.  Flaming river can do custom units.   Ibm also looking for something

modern, I believe that the TR7 rack is part of the shimmy problem, as the TR8

does not have that issue.



Will



>

William Parris

Re: Steering rack swap?
« Reply #4 on: September 17, 2018, 09:59:43 AM »
No I have not.   Thanks !



Will



>

Mark Elbers

Re: Steering rack swap?
« Reply #5 on: September 17, 2018, 10:06:04 AM »
Will,

 google bsteering quicknerb.

It installs between steering wheel and the rack.



Multiple ratios seem to be available..



Mark



Sent from my iPhone



>

Wayne@Last-Chance-Garage.com

Re: Steering rack swap?
« Reply #6 on: September 17, 2018, 10:49:05 AM »
The TR8 most certainly does have the problem. Maybe yours doesn't, but mine

sure did.



Sent from my BlackBerry 10 smartphone.

  Original Message  

From: William Parris

Sent: Monday, September 17, 2018 9:54 AM

To: Bill

Cc: tr8@mercury.lcs.mit.edu

Subject: Re:  Steering rack swap?



Yes. Flaming river can do custom units. Ibm also looking for something

modern, I believe that the TR7 rack is part of the shimmy problem, as the TR8

does not have that issue.



Will



>

Todd Kishbach

Re: Steering rack swap?
« Reply #7 on: September 17, 2018, 10:52:14 AM »

Mark Elbers

Re: Steering rack swap?
« Reply #8 on: September 17, 2018, 09:45:54 PM »
Other than counting the turns on the pinion,  does anyone know a sure fire way

to identify the early racks? Any identifying marks?

What year or VIN number did they stop using them on the TR7?





Sent from Mail for Windows 10



From: Todd Kishbach

Sent: Monday, September 17, 2018 7:51 AM

To: Mark Elbers

Cc: WWWedge

Subject: Re:  Steering rack swap?



If your 7 rack is an issue, check the white teflon/plastic cup the inner tie

rod sits in. B I keep finding cracked ones. B There are also shims that go

behind it. B If you have the rack out of the car, the inners should be tight

enough to hold the arm straight out without flopping down, but be easy enough

to move by hand. B Think shower head. B You want it to stay when you lift it

up and not flop straight down. B You also donbt want it so tight that you

bend the arm trying to reposition it. B I believe they are cracking as a

result of other shimmy causing issues. B Fix everything else in the front end

and shimmy is still there. B Its the cups in the rack. B Someone was building

and selling quick racks in the UK a while back. B I believe they used gears

from a Spitfire rack along with TR7 gears to get the quicker ratio. B Lots of

spare TR7 racks, but never put hands on a Spitfire one to check it out. B The

TR7 racks came in 2 different ratios. B Early ones were 3.9 and later ones

were 4.7. B I prefer the 3.9 racks in my TR8s over the numb power steering.

Todd

Triplesn8s

Re: Steering rack swap?
« Reply #9 on: September 17, 2018, 10:51:26 PM »
Weren't the early racks a different housing?  I think i have one but never put

it in because the supposedly had more bump steer, maybe a different inner

pickup point?



Todd, you race them, have you ever checked bump steer differences between the

two?



Bill

Sent from my iPhone