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Umi k-menber + a-arms or Bmr k-member and a-arms?

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Old Jun 11, 2012 | 04:09 PM
  #1  
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Umi k-menber + a-arms or Bmr k-member and a-arms?

hi.

I´ve heard that bmr are good stuff, but now i´m just qurious wich k-member i´m gonna use? the umi k-member seems to be really stabil. and the price is almost 100 dollars in difference. so wich would you recomend. it is the quality that counts, not saving around 100 dollars
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Old Jun 11, 2012 | 04:19 PM
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Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Umi k-menber + a-arms or Bmr k-member and a-arms?

have a bmr, next time I'd get the umi one.
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Old Jun 11, 2012 | 04:27 PM
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Re: Umi k-menber + a-arms or Bmr k-member and a-arms?

Why's that? Just qurious
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Old Jun 11, 2012 | 04:41 PM
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From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Umi k-menber + a-arms or Bmr k-member and a-arms?

Because of fitment and because the umi has some nice options like adjustabe steering stops, dowels on the K member and I like the double low tube on them

Last edited by Twin_Turbo; Jun 12, 2012 at 03:22 AM.
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Old Jun 11, 2012 | 04:45 PM
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Re: Umi k-menber + a-arms or Bmr k-member and a-arms?

Seems to be very different quality on every brand on the k-members but i agree with you on umi. Seems to be more solid
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Old Jun 11, 2012 | 06:21 PM
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Car: 1990 Chevrolet Camaro Iroc Z
Engine: 427 Dart SBC
Transmission: TH 400
Axle/Gears: Ford 9" 4.11 gears
Re: Umi k-menber + a-arms or Bmr k-member and a-arms?

I have a BMR k member in my car and it works great. never had a problem with it. bolts in extremely easy. has quality welds and looks very nice.
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Old Jun 12, 2012 | 10:37 AM
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Car: 1986 Chevrolet Camaro IROC-Z28
Engine: TPI 310ci (LB9)
Transmission: Custom Rebuilt 700R4 - 2600 Stall
Axle/Gears: 10 bolt, 3.73 Eaton Limited-Slip
Re: Umi k-menber + a-arms or Bmr k-member and a-arms?

The UMI package offers much more than any other brands (except SPOHN's a-arms have adjustable bushings, but not needed unless you really need to change geometry in such a way that only cars with wider wheels would really benefit from).

The k-member looks to be very solid and has provisions for the stock triangle bracing that reinforces the k-member further. It has very good clearance and if converting to an LSX one day all one needs to do is change the mounts (I THINK this is correct.. please correct me if I'm wrong on this one). They are going to be releasing a road race k-member which is going to be slightly heavier but will feature much more reinforcement. I don't know how but they have said they are working on it, and that is what I'm waiting for (dropping in a 383 alum. headed stroker at the same time).

The a-arms have so many features, 86TA did a write up not too long ago and posted his findings, which IMO were very very cool. That thread is here: https://www.thirdgen.org/forums/susp...new-style.html
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Old Jun 12, 2012 | 02:57 PM
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From: Mississauga,Ont,Canada
Car: 89 IROC
Engine: LSX 6.0 370, TU2 Cam, Fast intake
Transmission: T56 w/ lots of goodies
Axle/Gears: 8.8, Posi, 4.10, 31 Spline
Re: Umi k-menber + a-arms or Bmr k-member and a-arms?

UMI hands down from all that ive read and this winter I will be ordering mine
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Old Jun 13, 2012 | 07:12 PM
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Re: Umi k-menber + a-arms or Bmr k-member and a-arms?

Thanks guys. Our LSx adapter bolts right to the SBC classic mounting pad. And the k member is physically the same otherwise. You can switch back and forth with the same k.

Bear with us and we'll let you know when the RR version is ready.

later

Ramey

Originally Posted by hellz_wings
The UMI package offers much more than any other brands (except SPOHN's a-arms have adjustable bushings, but not needed unless you really need to change geometry in such a way that only cars with wider wheels would really benefit from).

The k-member looks to be very solid and has provisions for the stock triangle bracing that reinforces the k-member further. It has very good clearance and if converting to an LSX one day all one needs to do is change the mounts (I THINK this is correct.. please correct me if I'm wrong on this one). They are going to be releasing a road race k-member which is going to be slightly heavier but will feature much more reinforcement. I don't know how but they have said they are working on it, and that is what I'm waiting for (dropping in a 383 alum. headed stroker at the same time).

The a-arms have so many features, 86TA did a write up not too long ago and posted his findings, which IMO were very very cool. That thread is here: https://www.thirdgen.org/forums/susp...new-style.html
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Old Jun 16, 2012 | 01:17 AM
  #10  
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From: New Port Richey, Fl
Car: 1985 Trans Am
Engine: 6.6 at least
Transmission: T-56 (waiting)
Axle/Gears: 9" w/4.56 & spool (4 now)
Re: Umi k-menber + a-arms or Bmr k-member and a-arms?

I have always been a big fan of UMI....I bought a bunch of stuff for my ex's 00 WS6. You can see the quality in there work...

BMR would be my 2nd choice, their stuff is just as good...

Now my delema....I live about 45 min. or so from BMR and I have a friend that works there, and he said he could get me anything I want 25% off list price (cash of course).....They both make quality parts but I could save $130 off the K-member not to mention all the other stuff that I will need...

What do you guys think........
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Old Jun 17, 2012 | 12:35 AM
  #11  
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From: Bethlehem, CT
Car: 1983 Firebird SE
Engine: C5 LS1
Transmission: 6 speed
Axle/Gears: 3.42
Re: Umi k-menber + a-arms or Bmr k-member and a-arms?

Here is a detail, for LSX applications:
A/C compressor needs to be moved to fit on the UMI. Will mount in stock F car location on the BMR unit.
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Old Jun 17, 2012 | 09:12 AM
  #12  
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Re: Umi k-menber + a-arms or Bmr k-member and a-arms?

Hey Adam. Thanks for considering UMI.

If you have any particular questions concerning our products, we're just a phone call, email or PM away.

ramey
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Old Jun 17, 2012 | 09:16 AM
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Re: Umi k-menber + a-arms or Bmr k-member and a-arms?

http://www.umiperformance.com/catalo...roducts_id=624 does this work work sbc engine motor mounts? it doesen´t seems to be onyl for lsx or am i wrong?
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Old Jun 17, 2012 | 09:21 AM
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Re: Umi k-menber + a-arms or Bmr k-member and a-arms?

The base k-member works with SBC. The LSx k-member is the base plus a special adapter mount. No matter which initial part number you purchase, it's quick and easy (and inexpensive) to convert to SBC/LSx/Big springs/Coilovers...

ramey
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Old Jun 17, 2012 | 09:23 AM
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Re: Umi k-menber + a-arms or Bmr k-member and a-arms?

okey then i now.
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Old Sep 4, 2012 | 07:52 PM
  #16  
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From: Buckley AFB, CO / Crestview, FL
Car: 83 Z-28
Engine: LG4
Transmission: 700R4
Axle/Gears: 02 WS6 Rear w/3:42
Re: Umi k-menber + a-arms or Bmr k-member and a-arms?

Anybody know if UMI a-arms will fit the BMR k-member?
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Old Sep 4, 2012 | 08:07 PM
  #17  
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Re: Umi k-menber + a-arms or Bmr k-member and a-arms?

Our a-arms fit stock pickup points. Not sure about BMR's k member but I'd imagine they would make it fit stock pickup points as well.
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Old Sep 5, 2012 | 06:25 AM
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From: Bethlehem, CT
Car: 1983 Firebird SE
Engine: C5 LS1
Transmission: 6 speed
Axle/Gears: 3.42
Re: Umi k-menber + a-arms or Bmr k-member and a-arms?

Can not say for sure, but it looks like close, but no cigar.
I have a BMR K and had to get BMR A Arms- sold the Spohns I had (long story).
It was a clearance issue (brace bar away from attachment points). Viewing pics of both items, the BMR looks to have a bit more room. I bet it is needed.

Last edited by Flip 2; Sep 5, 2012 at 06:27 AM. Reason: try to clarify
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