cutting and lowering factory spring perch?

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dana
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Joined: Mon Oct 14, 2013 8:54 am

cutting and lowering factory spring perch?

Post by dana »

I am working on my TDI project again. Trying to brainstorm up suspension ideas. Obviously, the front sits very nose high with the factory 20v springs in it and tdi engine installed. If I could find a set of lowering springs for the front of a 2.0 80 fwd, those would work (but its impossible to find).

I could also do coilovers, but i dont really want to do that for a winter DD.

I was thinking I might try cutting off the factory spring perches and lowering them and retaining the original stock 20v springs. Is this a feasible idea?

Just looking for some other opinions.
current:
-mk4 tdi wagon with some mods
-TDI b3 90q, holset turbo, be strong little connecting rods!
-the turbo tractor
past:
-11 second 90q junker
-20vt swapped 90q winter beater
-efi 20vt 4kq
-way too many other long gone urs's, 200's 4000's, b5's
roortube
Posts: 154
Joined: Sun Mar 10, 2013 12:14 pm

Re: cutting and lowering factory spring perch?

Post by roortube »

Aside from lost travel and a soft spring I dont see why it wouldnt work. Just make sure your bump stops are good so it doesnt bottom out. You could also use some of Haydn's strut towers i. Bis secton on here, but they cost more than zero.
Rob

Prepping my 91 M5 Dinan for sale to fund 07K and EFR build for my UrQ. May also sell Lotus Elan resto project. PM if interested in either.
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dana
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Joined: Mon Oct 14, 2013 8:54 am

Re: cutting and lowering factory spring perch?

Post by dana »

well, theoretically I shouldnt loose travel over stock. I'm just trying to get it back into some kind of stock type ride height instead of a crazy nose high rake. Right now I've gained a couple inches of travel.

I suppose its worth a try, worst case I need to source anther set of front upright and do something else.
current:
-mk4 tdi wagon with some mods
-TDI b3 90q, holset turbo, be strong little connecting rods!
-the turbo tractor
past:
-11 second 90q junker
-20vt swapped 90q winter beater
-efi 20vt 4kq
-way too many other long gone urs's, 200's 4000's, b5's
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audifreakjim
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Joined: Sun Mar 03, 2013 3:00 pm

Re: cutting and lowering factory spring perch?

Post by audifreakjim »

There you go
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dana
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Joined: Mon Oct 14, 2013 8:54 am

Re: cutting and lowering factory spring perch?

Post by dana »

thanks for the (in)sanity check dudes. Out comes the grinder and welder.
current:
-mk4 tdi wagon with some mods
-TDI b3 90q, holset turbo, be strong little connecting rods!
-the turbo tractor
past:
-11 second 90q junker
-20vt swapped 90q winter beater
-efi 20vt 4kq
-way too many other long gone urs's, 200's 4000's, b5's
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ringbearer
Posts: 1282
Joined: Wed Feb 27, 2013 12:50 pm
Location: Nor-Cal

Re: cutting and lowering factory spring perch?

Post by ringbearer »

I was thinking of finding a hole saw that fits over the strut tube and extending it with a piece of pipe to cut the perch off clean. Kinda crazy, but a thought.
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dana
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Joined: Mon Oct 14, 2013 8:54 am

Re: cutting and lowering factory spring perch?

Post by dana »

i like that idea, i remember what a pain it was to grind those off before when I was installing coilovers on another car. I bet trying to grind it off and save it would really be tough. I might have to try this extended hole saw technique.
current:
-mk4 tdi wagon with some mods
-TDI b3 90q, holset turbo, be strong little connecting rods!
-the turbo tractor
past:
-11 second 90q junker
-20vt swapped 90q winter beater
-efi 20vt 4kq
-way too many other long gone urs's, 200's 4000's, b5's
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Mcstiff
Posts: 2003
Joined: Wed Feb 27, 2013 4:16 pm
Location: Erie, CO

Re: cutting and lowering factory spring perch?

Post by Mcstiff »

Finding a plasma to use for 20 mins (max) would be easier.
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ringbearer
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Joined: Wed Feb 27, 2013 12:50 pm
Location: Nor-Cal

Re: cutting and lowering factory spring perch?

Post by ringbearer »

You would still have to grind the leftovers and may cut some of the tube with the arc.
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dana
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Joined: Mon Oct 14, 2013 8:54 am

Re: cutting and lowering factory spring perch?

Post by dana »

Mcstiff wrote:Finding a plasma to use for 20 mins (max) would be easier.

there is nothing 20 mins from where I live, let alone a plasma cutter.

plus i like somewhat retarded DIY solutions like this. Its similar to how I just shaved .050" off my valve heads to compensate for a shaved head.
Image

Image
current:
-mk4 tdi wagon with some mods
-TDI b3 90q, holset turbo, be strong little connecting rods!
-the turbo tractor
past:
-11 second 90q junker
-20vt swapped 90q winter beater
-efi 20vt 4kq
-way too many other long gone urs's, 200's 4000's, b5's
Colin2750
Posts: 95
Joined: Thu Feb 28, 2013 9:08 pm

Re: cutting and lowering factory spring perch?

Post by Colin2750 »

Cut the springs? seems like an easier approach IMO
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dana
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Re: cutting and lowering factory spring perch?

Post by dana »

Colin2750 wrote:Cut the springs? seems like an easier approach IMO

i dont think thats a great idea. That will increase the spring rate, and also making the pigtails is not easy. I don't want the front to be oversprung and the rear to be stock soft. No good for understeer. Compared to everything else im doing on this car, a bit if time playing with cutting and welding really isnt a big deal.

I may have to end up going coilover, im just not sure how they would survive 6 months of salt brine every year.
current:
-mk4 tdi wagon with some mods
-TDI b3 90q, holset turbo, be strong little connecting rods!
-the turbo tractor
past:
-11 second 90q junker
-20vt swapped 90q winter beater
-efi 20vt 4kq
-way too many other long gone urs's, 200's 4000's, b5's
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speeding-g60
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Joined: Fri Mar 01, 2013 10:46 am

Re: cutting and lowering factory spring perch?

Post by speeding-g60 »

from memory the fronts (on my CQ's anyhow) the perch is right up on the steering arm? maybe not, but thats kinda what i remember anyways. and if so, you will not be lowering it much if anything at all.

Image
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dana
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Joined: Mon Oct 14, 2013 8:54 am

Re: cutting and lowering factory spring perch?

Post by dana »

excellent point Aaron, obviously I haven't even looked at my strut housings since coming up with this idea. I guess that sort of kills that plan.....
Thanks for the pic.
current:
-mk4 tdi wagon with some mods
-TDI b3 90q, holset turbo, be strong little connecting rods!
-the turbo tractor
past:
-11 second 90q junker
-20vt swapped 90q winter beater
-efi 20vt 4kq
-way too many other long gone urs's, 200's 4000's, b5's
User avatar
dana
Posts: 951
Joined: Mon Oct 14, 2013 8:54 am

Re: cutting and lowering factory spring perch?

Post by dana »

I just realized that there are b3 4 cylinder quattro cars in europe...perhaps i will have to source a set of springs from one of them and have them shipped.
current:
-mk4 tdi wagon with some mods
-TDI b3 90q, holset turbo, be strong little connecting rods!
-the turbo tractor
past:
-11 second 90q junker
-20vt swapped 90q winter beater
-efi 20vt 4kq
-way too many other long gone urs's, 200's 4000's, b5's
User avatar
dana
Posts: 951
Joined: Mon Oct 14, 2013 8:54 am

Re: cutting and lowering factory spring perch?

Post by dana »

http://www.ebay.com/itm/ST-Weitec-Lower ... 1155506811

these might actually be the ticket, and free shipping from germany. ST is apparently made by KW??

The price is worth a shot.
current:
-mk4 tdi wagon with some mods
-TDI b3 90q, holset turbo, be strong little connecting rods!
-the turbo tractor
past:
-11 second 90q junker
-20vt swapped 90q winter beater
-efi 20vt 4kq
-way too many other long gone urs's, 200's 4000's, b5's
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scubagli
Posts: 604
Joined: Wed Feb 05, 2014 4:20 pm
Location: leeds ny

Re: cutting and lowering factory spring perch?

Post by scubagli »

Lol at the valve fix.
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dana
Posts: 951
Joined: Mon Oct 14, 2013 8:54 am

Re: cutting and lowering factory spring perch?

Post by dana »

scubagli wrote:Lol at the valve fix.

I actually took more care than it looks and ended up with a nice finish. You wouldnt even know I did this. I think its going to work just fine, but won't pat myself on the back until its up and running.

Was thinking I would post a DIY valve head skimming up on TDIClub.... :lol: I would get crucified. I might do it once it is running reliably.
current:
-mk4 tdi wagon with some mods
-TDI b3 90q, holset turbo, be strong little connecting rods!
-the turbo tractor
past:
-11 second 90q junker
-20vt swapped 90q winter beater
-efi 20vt 4kq
-way too many other long gone urs's, 200's 4000's, b5's
User avatar
scubagli
Posts: 604
Joined: Wed Feb 05, 2014 4:20 pm
Location: leeds ny

Re: cutting and lowering factory spring perch?

Post by scubagli »

Ha ha [SMILING FACE WITH SMILING EYES] they will love that.
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vt10vt
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Location: Winooski, VT

Re: cutting and lowering factory spring perch?

Post by vt10vt »

Either actually come hang out in Burlington for a night and we can cut them up here at work or find some part numbers for springs and I can have one of our distributors across the pond ship a set over, shipping wouldn't be all that bad.
Last edited by vt10vt on Sat Mar 07, 2015 9:40 pm, edited 1 time in total.
-Shawn C.
2001 S4 6spd Avant blk/blk - stock daily
2002 01E B6 A4 Built FYF, Built 1.8T, HX35 ~330whp
1989 MC-1 200 Avant- MS1 -Gone but will never forget her lessons
1987 5ktq Sedan - Best $500 beater ever
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dana
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Re: cutting and lowering factory spring perch?

Post by dana »

excellent shawn, i will get with you and see if you guys can find some springs I need. I am getting ahead of myself, the motors is not even together yet.
current:
-mk4 tdi wagon with some mods
-TDI b3 90q, holset turbo, be strong little connecting rods!
-the turbo tractor
past:
-11 second 90q junker
-20vt swapped 90q winter beater
-efi 20vt 4kq
-way too many other long gone urs's, 200's 4000's, b5's
User avatar
oil_me
Posts: 143
Joined: Sun Aug 31, 2014 7:38 pm

Re: cutting and lowering factory spring perch?

Post by oil_me »

I have a similar swap. I used fronts from an '87 4000 4 cyl; rears are '90 B3 4 cyl (front springs, no AC). It's about 1.375" higher than stock front and rear. I plan on swapping the rears to the front and CQ front springs in the rear. I need/want more altitude in the rear for clearance in the woods so this set up might not be ideal for you. I would avoid coil-overs in the NE I've had them on my other 80q for 2 winters. I fit boots under the coils, but the adjusters aren't corrosion proof and are seized at the moment. What ride height do you want?
'91 80Q m-TDI DD 51.8 mpg-"the oil_can" http://www.theprojectpad.com/viewtopic.php?f=11&t=1529&start=175
'89 80Q shady 80
'99.5 Jetta TDI RC3e/Shine susp. 47-52 mpg
'85 BMW R80 (exploded diagram) next in line
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scubagli
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Location: leeds ny

Re: cutting and lowering factory spring perch?

Post by scubagli »

I'd just put a mkii/mkiii lowering spring in there....if you don't want to go coilover....
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dana
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Re: cutting and lowering factory spring perch?

Post by dana »

I would like to be about 1.5 inches lower than stock maybe. I definitely don't want slammed
current:
-mk4 tdi wagon with some mods
-TDI b3 90q, holset turbo, be strong little connecting rods!
-the turbo tractor
past:
-11 second 90q junker
-20vt swapped 90q winter beater
-efi 20vt 4kq
-way too many other long gone urs's, 200's 4000's, b5's
User avatar
scubagli
Posts: 604
Joined: Wed Feb 05, 2014 4:20 pm
Location: leeds ny

Re: cutting and lowering factory spring perch?

Post by scubagli »

I'd have to say it would probably work maybe...
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